Answers
Answer:
D. the nervous system
Explanation:
This system of your body controls your reflexes! :D
Answer:
Nervous system
Explanation:
The nerve receptors responsible for transmission of impulses to the brain are a part of nervous system.
Related Questions
1. What were the first pioneer plants to inhabit the "blast zone"?
2. What roles did factors such as wind, moisture, and landforms play in succession
after the eruption?
3. Would the eruption of Mt. St. Helens considered primary, secondary succession or
both? What biogeochemical cycle(s) led to the helping of the succession? Use evidence
from the article to support your claims and reasoning. Must be at least 5 sentences or
more.
Answers
Answer:
1. The first pioneer plants to inhabit the "blast zone" after the eruption of Mount St. Helens were grasses and herbaceous plants. These plants were able to establish themselves quickly because they have small, lightweight seeds that can be dispersed easily by the wind.
2. Factors such as wind, moisture, and landforms played crucial roles in the succession after the eruption. Wind was an important factor in the dispersal of seeds, allowing plants to establish themselves in new areas. Moisture played a key role in determining which plants could survive in different parts of the blast zone, as some areas were more arid than others. Landforms, such as ridges and valleys, also affected the distribution of plants, as different species were able to thrive in different microclimates.
3. The eruption of Mt. St. Helens is considered both primary and secondary succession. Primary succession refers to the colonization of a barren landscape with no existing soil or vegetation, while secondary succession occurs on previously established ecosystems that have been disrupted by a disturbance. In the case of Mt. St. Helens, the initial eruption created a barren landscape with no existing soil or vegetation, making it a primary succession. However, as the ecosystem began to recover and soil and vegetation were established, it transitioned into a secondary succession.
Explanation:
Biogeochemical cycles, particularly the carbon and nitrogen cycles, played important roles in helping the succession. After the eruption, the soil was devoid of organic matter and nutrients. However, the deposition of volcanic ash and the subsequent breakdown of this material by microorganisms led to the release of nutrients, particularly nitrogen and carbon, which helped to support the growth of plants. The article notes that some plants, such as alder trees, are particularly important in helping to fix nitrogen and restore the soil, which in turn allows other plants to establish themselves. Overall, the biogeochemical cycles of carbon and nitrogen played a critical role in the succession of the ecosystem after the eruption of Mt. St. Helens.
Osmotic pressure is directly correlated with tonicity
Answers
Answer:
I'm pretty sure this is true.
Explanation:
:)
Cell
Smallest structural, ___independent______________________, and biological unit of all living organism
Answers
Answer:
Cells as Building Blocks
A cell is the smallest unit of a living thing. A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism. Thus, cells are the basic building blocks of all organisms.
A cell is the smallest unit of a living thing. A living thing, whether made of one cell (like bacteria) or many cells (like a human), is called an organism. Thus, cells are the basic building blocks of all organisms. ... There are many types of cells all grouped into one of two broad categories: prokaryotic and eukaryotic.
it helps the plant to pollinate the flowers
Answers
Answer:
Bees or similar inscets.
PLEASE HELP ME!!!!
Which of the following statement most directly supports the claim that changes in normal signal transduction can alter cellular response? A. Physical activity stimulates heart rate and oxygen uptake in both healthy and immune-suppressed individuals. B. Oral birth control medications bind to cell receptors in the pituitary to prevent the release of hormones that stimulate ovulation. C. Injury to blood vessels triggers a cascade of changes to blood proteins that results in blood clotting. D. Infection by a flu virus leads to activation of helper T cells and the induction of antibodies by B cells.
Answers
Oral birth control medications bind to cell receptors in the pituitary to prevent the release of hormones that stimulate ovulation. Therefore option (B) is correct.
What is signal transduction?Signal transduction is the process by which cells communicate with each other and respond to their environment. It involves the transmission of molecular signals from the extracellular environment to the interior of the cell, where they trigger a chain of biochemical events that ultimately result in a cellular response.
This process can involve a variety of molecules such as hormones, growth factors, neurotransmitters, and cytokines. Signal transduction is critical for many cellular processes including cell growth and differentiation, apoptosis, immune response, and homeostasis. Dysregulation of signal transduction can lead to a variety of diseases such as cancer, autoimmune disorders, and metabolic disorders.
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Question 42
1 pts
A man with type O blood has a child with a women who is tye AB. What is the probability
that they will have a child with type o blood?
O 100%
O 50%
O 0%
25%
Answers
Drag each tile to the correct box.
Lucia is walking barefoot in her yard. She accidentally steps on a nail. How will her nervous system work to generate a reaction? Arrange the events
chronologically.
Interneurons relay the impulse to motor
In neurons in the spinal cord.
She immediately moves her foot.
The sensory neuron generates an
impulse.
Receptors in her toe receive stimuli.
I rights reserved.
Answers
Answer:
these are some points hope this helps you.
Described below are groups of symptoms that can be present in honey bee colonies. Your job is to correctly identify what is happening in the colony. Remember, some of the symptoms may be caused by similar reasons, so be sure to identify the BEST answer for each symptom. 1. Few adult workers, brood pattern is spotty, drone brood or drone adults are not necessarily present 2. Few adult workers, brood few and irregular, multiple eggs in cells, lots of adult drones, brood limited to drone brood 3. Lots of adult workers, lots of capped brood, lots of young larvae, lots of eggs, no queen cells 4. Lots of adult workers, lots of capped brood, lots of young larvae, few or no eggs, queen cells present and at various stages of development 5. Moderate number of adult workers, moderate amount of capped brood, no young larvae, no eggs, ripe queen cells present, multiple queen cells present with tips opened 6.Moderate number of adult workers, moderate amount of capped brood, no young larvae, no eggs, opened queen cells present, some queen cells present opened at the sides 7. Moderate number of adult workers, moderate amount of capped brood, moderate number of eggs and young larvae, 2-3 queen cells of similar age 8. Moderate number of adult workers, lots of eggs and young larvae, no capped brood. 9. Few adult workers, brood pattern is spotty, workers with deformed wings are present These are the answer choices for each question. a) colony is superseding its queen b) colony is queenless and has laying workers c) colony is preparing to swarm
d) colony has high Varroa levels e) queen is producing inbred progeny f) colony has swarmed and will not swarm again g) colony has swarmed and may swarm again h) colony is in rapid growth but not preparing to swarm i) colony is a new swarm experiencing fast growth
Answers
Without a queen, the colony has laying females. The honey bee colonies is getting ready to swarm and/or the colony is a fresh swarm undergoing rapid growth. Fertile male honey bee is known as a drone
How can you make bees more genetically diverse?Multiple mating among colony members is a strategy used by social insect queens to increase genetic variety, which lowers intracolony relatedness and potentially reduces the fitness gains of altruistic workers. The prevalence of sickness within a nest may be decreased by increased genetic variety, which would be adaptive.
What are the three ways that genetic diversity in a population rises?Alleles can be rearranged within an organism's progeny as a result of recombination between homologous chromosomes during meiosis, random mating, random fertilization, and mutation, which can create completely new alleles in a population.
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as chemical energy flows through various trophic levels of an ecosystem the amount ofavailable energy is reduced. Which of the following statements best explains the reason for thereduction of available energy at successive trophic levels?a. most of the energy is used to maintain a constant temperature in the Organism.b.most of the energy remains stored in an Organism tissues for metabolism.C.a large amount of energy is lost to the surrounding environment as heat.d. a large amount of energy is available to microbes during decomposition.
Answers
As chemical energy flows through various trophic levels of an ecosystem the amount of available energy is reduced because most of the energy is lost to the surrounding environment as heat.
The correct option is c.
Residual parent material refers to the *weathered rock* and *soil* that remains in its place of origin, while *transported parent material* is material that has been carried and deposited by natural agents such as water, wind, or glaciers.
The impact of these different types of parent material on *soil formation* can be significant. Residual parent material tends to contribute to the formation of soils with characteristics similar to the parent rock. The weathering process breaks down the rock into smaller particles, allowing for the development of soil horizons and the release of minerals that influence soil fertility. In contrast, transported parent material can introduce a diverse range of materials to a given area, leading to variations in soil composition, texture, and fertility. The transportation process can mix different types of sediment, resulting in the formation of heterogeneous soils with varying properties.
Answers
Residual parent material is the rock and soil that is still located in its original location and is weathered. Transported parent material is material that is carried and deposited by natural agents such as water, wind, or glaciers. The effect of these different types of parent material on soil formation can be significant.
Residual parent material usually contributes to the development of soils with qualities similar to the parent rock. The breakdown of rock into smaller particles through weathering enables the formation of soil horizons and the release of minerals that influence soil fertility.
The physical and chemical characteristics of soils derived from this form of parent material are often similar and homogeneous, allowing for predictable fertility and properties. Transported parent material, on the other hand, can introduce a diverse range of materials to a given area, resulting in variations in soil composition, texture, and fertility.
The transportation process can blend different types of sediment, resulting in the formation of heterogeneous soils with different characteristics. Transported parent material can also be exposed to weathering processes, altering its original composition and resulting in soils with varying degrees of fertility.
While transported parent material can increase the diversity of soil properties in an area, it can also make it difficult to predict soil characteristics, particularly in areas where different types of sediment have been deposited. The relationship between parent material and soil development is complex, with both the initial characteristics of the material and the surrounding environment influencing soil properties.
In general, residual parent material contributes to the development of homogeneous soils with predictable properties, while transported parent material can result in more diverse and heterogeneous soils.
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How does the reproduction of organisms impact the diversity of genes?
Answers
Reproduction of organisms impact the diversity of genes. This variation is due to independent assortment and crossing-over during meiosis, and random union of gametes during fertilization.
Sexual reproduction creates genetic diversity reason behind this is sperm and egg contain different combinations of genes and traits .Genetic variations that alter gene activity or protein function can introduce different traits in an organism.
Gene flow is an important mechanism that maintains genetic diversity within populations and commits to the evolutionary process by migration of genes between two populations having different allele frequencies.
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Drag the tiles to the correct boxes to complete the pairs.
Match each form of energy to its description.
gravitational potential
Answers
Motion energy refers to the energy related to an object's movement. When an object is in motion, it possesses kinetic energy, which is a form of motion energy.
How to explain the energyThe matching will be:
motion energy = energy related to an object's movement
chemical energy = stored energy related to positions of atoms within molecules
thermal energy = energy of motion of particles in a substance
nuclear energy = energy released when a nucleus splits or combines
gravitational potential energy = energy related to height
sound energy = energy generated by vibration of a string
Chemical energy is stored energy that is related to the positions of atoms within molecules. It is the energy that can be released or absorbed during a chemical reaction. When chemical bonds are formed or broken, energy is either released (exothermic reaction) or absorbed (endothermic reaction) in the process.
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During moderate intensity exercise, most of the ATP used for muscle contraction is formed by?
Answers
Answer:
Aerobic cellular respiration
Explanation:
Aerobic cellular respiration is the process by which your cells generate energy (ATP) from glucose (sugar from food) and oxygen. Since this exercise activity is only moderately intense, you are getting plenty of oxygen, and this is how your muscles will generate energy.
Hope this helps!!
Below is an image of a well. Explain what type of well this is and how it works
Answers
Answer:
This is an artesian well. An artesian well is simply a well that doesn't require a pump to bring water to the surface. This occurs when there is enough positive pressure in the aquifer to bring the water to the surface. An artesian aquifer is confined between impermeable rocks or clay which causes this positive pressure.
Explanation:
This is the answer for the pic I put but sorry if it's not the right well
What happens after that so the number of chromosomes per cell dose not end up being higher?
Answers
The presence of what cellular structure distinguishes a plant cell from an animal cell?
A. Chloroplast
B. Cell Membrane
C. Nucleus
D. Mitochondria
Answers
Help I need answers
Answers
Answer:
D
Explanation:
Based on the data that you collected from the virtual lab, which primate had the largest skull or supraorbital height (SHI)?
Pan troglodytes (Modern Chimpanzee)
Homosapiens (Modern human)
Homoerectus (Extinct hominid)
Australopithecus afarensis (Extinct hominid)
Answers
Modern human is the primate that has the largest skull or supraorbital height (SHI) as compared to other primates.
Reason for large skullModern human has the largest skull or supraorbital height (SHI) because it has the largest primate brain which needs a large skull size. Human brain has the highest number of cortical neurons of any primate i.e. 16 billion compared with 9 billion in gorillas so we can conclude that Modern human has the largest skull or supraorbital height (SHI).
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Answer:
The answer would be B. Homo sapiens (Modern human)
Explanation:
PLEASE HELP WILL MARK BRAINLEST!
Answers
Answer:
it is B
Explanation:
suppose that the number of bacteria in a certain population increases according to a continuous exponential growth model. a sample of bacteria selected from this population reached the size of bacteria in two hours. find the hourly growth rate parameter. note: this is a continuous exponential growth model. write your answer as a percentage. do not round any intermediate computations, and round your percentage to the nearest hundredth.
Answers
The hourly growth rate parameter is 69.31%.
The continuous exponential growth model is given by:
N(t) = N(0)e^(rt)
Where N(t) is the size of the bacteria population at time t, N(0) is the initial size of the bacteria population, r is the hourly growth rate, and e is the base of the natural logarithm.
From the given information, we know that the size of the bacteria population doubled in 2 hours, so we have:
N(2) = 2N(0)
We can substitute N(2) and N(0) in the exponential growth model to find r:
2N(0) = N(0)e^(2r)
Dividing both sides by N(0):
2 = e^(2r)
Taking the natural logarithm of both sides:
ln 2 = 2r
Finally, dividing both sides by 2:
r = ln 2/2
To express r as a percentage, we can multiply it by 100:
r (in %) = 100 * (ln 2/2)
The hourly growth rate parameter, expressed as a percentage, is approximately:
r (in %) = 69.31% (rounded to the nearest hundredth).
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1) Briefly describe the process of DNA replication.
a) Start with the molecular machinery and be sure to describe what DNA polymerase does. Use the terms ‘free nucleotides’, ‘helicase’, ‘polymerase’, ‘complementary’.
b) describe the result; how many strands were made? Describe their composition. Use the terms ‘parental DNA’ and ‘new DNA’.
Answers
Answer:
The biological process that involves produces two exact copies of DNA from a DNA molecule is called DNA replication.
In this process, the enzyme helicase unzips the DNA double helix by breaking the hydrogen bonds that bind bases together in the structure. Unzipping the hydrogen creates a replication fork. Every strand of the DNA acts as a template but oppositely oriented known as the leading strand in 3’ to 5’ direction and the lagging strand in the 5’ to 3’ direction.
One of the strands is oriented in the 3’ to 5’ direction (towards the replication fork), this is the leading strand. The other strand is oriented in the 5’ to 3’ direction (away from the replication fork), this is the lagging strand. As a result of their different orientations, the two strands are replicated differently.
Primer acts as an initiating site for DNA synthesis and DNA polymerase enzyme adds new complementary nucleotide base by attached and moving on the leading strand in the direction of 5' to 3' which is reversed to the strand.
After the binding and synthesis of all the bases, the enzyme called exonuclease removes the primer from the strand. One new and an old chain of two DNA molecules are synthesized by DNA replication due to the one new and one parent molecule in DNA it is known as semi-conservative.
what are some of the characteristics of molds
Answers
Moulds, those dusty little spots often found spreading over bread, cheese, books, and other things in the home, cause the loss of millions of dollars to our economy every year and, even worse, may be a menace to your health. To deal with them successfully we must understand what moulds are and exactly what they are doing.
Moulds are microscopic, plant-like organisms, composed of long filaments called hyphae. Mould hyphae grow over the surface and inside nearly all substances of plant or animal origin. Because of their filamentous construction and consistent lack of chlorophyll they are considered by most biologists to be separate from the plant kingdom and members of the kingdom of fungi. They are related to the familiar mushrooms and toadstools,differing only in not having their filaments united into large fruiting structures. For our purposes here, we shall consider as moulds only fungi that are commonly encountered n the home and laboratory and that can be easily grown and studied.
When mould hyphae are numerous enough to be seen by the naked eye they form a cottony mass called a mycelium. It is the hyphae and resulting mycelia that invade things in our homes and cause them to decay.
Reproduction in fungi is complex and involves a great diversity of structures. At the most fundamental level we can say that most moulds reproduce by spores. Spores are like seeds; they germinate to produce a new mould colony when they land in a suitable place. Unlike seeds, they are very simple in structure and never contain an embryo or any sort of preformed offspring. Spores are produced in a variety of ways and occur in a bewildering array of shapes and sizes. In spite of this diversity, spores are quite constant in shape, size, colour and form for any given mould, and are thus very useful for mould identification.
The most basic difference between spores lies in their method of initiation, which can be either sexual or asexual. Sexually initiated spores result from a mating between two different organisms or hyphae, whereas asexual spores result from a simple internal division or external modification of an individual hypha. the recognition of a mating and subsequent spore formation is often difficult for an observer,and is usually reserved for patient specialists. However, for practical purposes one can learn to recognize certain indications of the sexual process, namely, the four kinds of sexually determined spores that appear in mould fungi: (1) oospores, (2) zygospores, (3) ascospores, and (4) basidiospores.
Answer:
there green or dark green because they do photosysisisisisss aw my pronunciation
Explanation:also they nee water
Which organisms can reproduce using the process of fragmentation
Answers
Fragmentation is a form of asexual reproduction and is seen in annelids, fungi, cyanobacteria, sponges, and flatworms.
In Fragmentation, an organism divides itself into a number of fragments. It occurs when an organism completely breaks down independently irrespective of the other parts. Each one of these fragments matures into fully grown adults that are clones of the original organism.
Asexual reproduction usually involves the participation of a single parent alone can produce new offspring. The newly produced individual is genetically identical to one another and its parent. Both multicellular and unicellular organisms divide by fragmentation which is asexual reproduction.
Fragmentation is the most common method of reproduction in lower invertebrates. It is seen in many organisms including filamentous cyanobacteria, algae, lichens, molds, many plants, and animals such as flatworms, annelid worms, sponges, and sea stars.
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The organisms that can reproduce by fragmentation are Option d Sponges and Sea anemones.
Fragmentation is a form of asexual reproduction in which an organism breaks into two or more fragments, and each fragment develops into a new individual. Both sponges and sea anemones are examples of organisms that exhibit this mode of reproduction.
Sponges are simple multicellular animals that lack true tissues and organs. They possess a porous body structure, and when a sponge is fragmented, each fragment has the potential to develop into a new sponge through regeneration. These fragments contain specialized cells called archaeocytes that can differentiate into various cell types required for the formation of a new sponge.
Sea anemones, on the other hand, are marine animals belonging to the phylum Cnidaria. They have a cylindrical body with tentacles surrounding their mouth. When a sea anemone is fragmented, each piece can regenerate into a complete individual. The process involves the differentiation of cells within the fragments, leading to the development of new tentacles, body parts, and eventually a mature sea anemone.
Both sponges and sea anemones have remarkable regenerative abilities, allowing them to reproduce through fragmentation. This form of asexual reproduction enables them to colonize new areas, expand their population, and adapt to changing environmental conditions. Therefore the correct option is D
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The Question was Incomplete, Find the full content below :
The organisms which can reproduce by fragmentation are:
(a) Corals and Sponges
(b) Corals and Spirogyra
(c) Sea anemone and Spirogyra
(d) Sponges and Sea anemones.
if the light intensity decreases then the dissolved oxygen level will decreases because
Answers
Which beaks would be best for picking insects out of wood and worms out of sand
Answers
Answer:
Explanation:
woodpecker???
4. What is population density?
Answers
Answer:
The amount of living organisms in a set area, usually humans. Like the maps that show purple is no people red is lots of people.
Answer:
Population density is the number of individuals per unit geographic area, for example, number per square meter, per hectare, or per square kilometer.
Explanation:
Hope this helps my dude.
which of the following might be a density-dependent limiting factor for a group of perch in a lake?
Answers
Answer:
Density Dependent limiting factors
Explanation:
Write a short essay that contrasts mitosis and meiosis, including their respective roles in organisms, the mechanisms by which they achieve their respective outcomes, and the consequences should either process fail to be executed with absolute fidelity.
write the terms on the left to the appropriate blanks on the right to complete the sentences. Terms can be used once, more than once, or not at all.
meiosis
mitosis
Compared with _____________ , which maintains chromosomal constancy__________, provides for a reduction in chromosome number and an opportunity for exchange of genetic material between homologous chromosomes. In ___________ there is no change in chromosome number or kind in the two daughter cells, whereas in ________ numerous potentially different haploid (n) cells are produced. During oogenesis, only one of the four products of _____________ is functional; however, four of the four products of _____________________of spermatogenesis are potentially functional.
Answers
Answer:
1. Mitosis.
2. Mitosis and meiosis.
3. egg cell and sperm cell.
Explanation:
Mitosis is a type of cell division in which a single cell divide into two daughter cells having double number of chromosomes whereas meiosis is a type of cell division in which a parent cell divides into four daughter cells having half number of chromosomes. mitosis occurs in the body cells whereas meiosis occurs in sex cells. If mitosis becomes uncontrolled it causes cancer whereas if meiosis becomes uncontrolled it causes genetic disorders.
If a 160lb individual has 28% body fat how much of their body weight is fat in lbs.?
Answers
Answer:
44.8 lb
Explanation:
160 lb * 0.28= 44.8 lb
Answer:
44.8 lb
Explanation:
160 x 0.28 = 44.8
A small population of mice has newly arrived on an island. The island offers abundant resources for the mice. Is natural selection likely to act on this population?
Answers
The natural selection is the process that organisms in the same environment pass to adapt and survive, being the individuals in a population naturally variable, with some having better adaptive traits to survive in the environment than others. The population of mice that arrived on the island with abundant resources will also go through natural selection, being the correct alternative is the one that says: " yes, because natural selection always acts on populations", since it is a natural process that occurs with all the living organisms, regardless of the circumstances.