Answers
These scientists claimed that ontogeny recapitulates phylogeny (ORP). This phrase suggests that an organism's development will take it through each of the adult stages of its evolutionary history, or its phylogeny. Thus its development would reiterate its evolutionary history — ontogeny recapitulating phylogeny.
Related Questions
A student filled two Petri dishes with a clear cornstarch gel, then marked the letter
Answers
Q1: identify six factors that affect biodiversity and populations of an ecosystem.
Q2: describe an example of a factor that affects an ecosystem’s biodiversity. The factor you choose can have a positive or negative impact on a population, community, or a different level of an ecosystem.
Answers
The Six factors that can affect biodiversity and populations in an ecosystem are:
Habitat loss and fragmentationClimate changeInvasive speciesPollutionOverexploitationNatural disasters: What is biodiversity?Non-native species can harm native species and ecosystem balance. Pollution: Toxins from human activity can harm organisms and ecosystems. Overexploitation and natural disasters can harm biodiversity.
Habitat destruction or fragmentation can negatively impact biodiversity in an ecosystem. Destruction refers to complete removal, while fragmentation divides habitats into smaller patches due to human activities like deforestation and urbanization. Habitat destruction & fragmentation can harm biodiversity, leading to loss of critical habitats for species.
Learn more about biodiversity from
https://brainly.com/question/26110061
#SPJ1
Exocrine glands
absorb hormones from the blood
absorb hormones from body surfaces
secrete hormones into the blood
secrete hormones into an attached duct
Answers
The Exocrine glands secrete hormones into an attached duct.
What do exocrine glands release?While the endocrine glands release their secretions into the bloodstream, the exocrine glands secrete their substances into other organs or to the outside of the body. Some examples of exocrine glands are: sweat glands (secrete sweat), mammary glands (secrete milk) and salivary glands (release saliva)
Glands are structures formed by epithelial tissue of the glandular type that are specialized in the synthesis and release of substances.
See more about Exocrine glands at brainly.com/question/11312688
#SPJ1
Can somebody help me
Answers
i need help!!! i have no idea what to answer and i have to turn this in today!
Answers
Okay, we can see that parents in the image have a 4 puppies' offspring, all of them with spotted fur (SS or Ss). So the genotypes of each parent must be ss for the white-furred parent and SS for the spotted furred parent.
another word for selectively permeable?
Answers
Answer:
semipermeable membrane.Answer:
tom asked what inspired you?
What is the pairing of complementary strands of DNA due to hydrogen bonding called out of these options:
1. semi-conservative replication
2. helicase
3. DNA polymerase I
4. lagging strand
5. mitosis
6. Okazaki fragment
7. single-stranded binding proteins
8. leading strand
9. ligase
10. replication fork
11. template strand
12. primase
13. gyrase
14. annealing
15. DNA polymerase III
Answers
The pairing of complementary strands of DNA due to hydrogen bonding is called semi-conservative replication.
DNA replicationThe biological process of creating two identical copies of DNA from a single original DNA molecule is known as DNA replication. All living things replicate their DNA, which is the primary mechanism for biological inheritance. This is necessary for:
cell division during tissue development and repair, and it also guarantees that each new cell gets a copy of the DNA.A double helix (two linear strands that run counterclockwise and twist together) of two complementary strands makes up DNA.
These strands are split apart in the replication process. The mechanism of semiconservative replication uses each strand of the original DNA molecule as a template to create its counterpart. The new helix will be made up of an original DNA strand as well as a freshly synthesized strand as a result of semi-conservative replication.
To learn more about DNA replication, read: https://brainly.com/question/27853195
#SPJ1
Question 4
What structure is the brain's "thermostat?"
Answers
Which of the following takes the least amount of energy and uses the fewest natural
resources? (Select the best answer.)
Reducing
Downcycling
Reusing
Recycling
Answers
Create a food chain that shows the energy transfer from the sun to a grizzly bear. Include four transitions (arrows) in your food chain.
Answers
(I already answered but ima answer again)
Answer:
THE FOOD CHAIN IS SUN-PLANTS-CATAPILLAR-FISH-BEAR
Explanation:
srry forgot caps was on hope this help yw
A mass extinction event is when over ____ of species die out in a relatively short
period of time.
A. 100%
B. 25%
C. 50%
D. 75%
Answers
A mass extinction event is when over 75% of species die out in a relatively short period of time. Therefore, the correct answer is: D. 75%
Earth's biodiversity declines rapidly and widely during an extinction event. A significant shift in the variety and abundance of multicellular organisms indicates such an event. It occurs when both the rate of speciation and the rate of extinction outpace the background rate.
A short period of geological time known as a mass extinction occurs when a significant portion of biodiversity, or distinct species—such as bacteria, fungi, plants, mammals, birds, reptiles, amphibians, fish, and invertebrates—die.
Impacts from comets and asteroid, widespread volcanism, climatic changes, rapid shifts in geography and ocean currents, or a combination of these can all lead to mass extinctions. The extinction of a single species is a characteristic of the flora and fauna of Earth.
Know more about mass extinction, here:
https://brainly.com/question/29774925
#SPJ1
So the plant cells can maximize the amount of ______ that they each get
A: water B: carbon dioxide C:sunlight
Answers
Answer:
Depends...
Explanation:
You need to include more information regarding the question. If the question is referring to the roots of the plant then the answer would be water. If the questions asks about the area of the leaves/amount of leaves then it would be sunlight. If the question is talking about stomatal pores then it would be carbon dioxide.
Hope this helps,
H.M.
Lesson Question:How can the presence of
one species benefit another in the same
ecosystem?
Check all correct elements below that you
included in your question.
independent variable: presence of one
species (here, worms)
dependent variable: effect on another
species (here, lima bean plants)
relationship: benefit
DONE
Answers
Mutualism is a type of symbiotic relationship where all species involved benefit from their interactions.
How can the presence of one species in the same ecosystem assist another?A mutualism occurs when two species have a long-term relationship that benefits both of them (+/+ interaction). Some fungi, for example, create mutualistic relationships with plant roots. The plant may photosynthesize and gives fixed carbon to the fungus in the form of sugars and other organic compounds.
The presence of several species in an ecosystem balances it. The species in an ecosystem interact with one another in some way. For example, the existence of a plant species will offer food for the numerous herbivores found in an ecosystem. A predator may consume a variety of prey. As a result, the existence of diverse prey reduces the likelihood of a species becoming extinct in the ecosystem. As a result, all creatures in an ecosystem are dependent on one another in some way.
To learn more about Mutualism to refer:
https://brainly.com/question/9557750
#SPJ1
The water molecule is a polar molecule. A water molecule is polar because
The electrons are shared equally
Oxygen has a stronger attraction for electrons than hydrogen
It is very cold
Hydrogen atoms have a stronger attraction for electrons than oxygen
Answers
The correct answer is: "B. Oxygen has a stronger attraction for electrons than hydrogen."
What are polar molecules?A water molecule is polar because it has a bent shape and an unequal sharing of electrons between the oxygen and hydrogen atoms.
Oxygen has a stronger electronegativity (ability to attract electrons) than hydrogen, which means it attracts the shared electrons in the covalent bond between the two atoms more strongly. As a result, oxygen has a partial negative charge (δ-) and hydrogen has a partial positive charge (δ+).
This separation of charges makes the water molecule polar, with a slightly negative end and a slightly positive end. This polarity allows water molecules to interact with each other through hydrogen bonding and gives water its unique properties, such as its high boiling point, surface tension, and solvent abilities.
Learn more about polar molecules at: https://brainly.com/question/1433127
#SPJ1
PLSSS HELPPPPP
What is the difference between a food web and a food chain?
Answers
Monica has been feeling upset and disturbed after her divorce. Though she is quite relieved with the divorce, the long-winded and cumbersome proceedings have taken a toll on her. Monica's disturbed state of mind indicates that she is most likely to be
Answers
Monica's current state of mind suggests that she is experiencing emotional distress due to her recent divorce. Going through a divorce can be an incredibly challenging and stressful experience, even if it is ultimately for the best. The long and arduous legal process that often accompanies a divorce can take a significant toll on one's mental and emotional wellbeing.
It is not uncommon for individuals to experience a range of emotions after a divorce, including sadness, anger, frustration, and anxiety. Monica's feelings of being upset and disturbed are entirely normal in the circumstances, and it may take time for her to heal and recover fully.
It is essential for Monica to take care of her mental and emotional health during this challenging time. Seeking support from friends and family, as well as professional help if needed, can be incredibly beneficial in helping her cope with the stress and emotional turmoil that often accompanies a divorce.
With time, patience, and support, Monica can come out the other side of this experience feeling stronger and more resilient than ever before.
For more questions on: divorce
https://brainly.com/question/15122322
#SPJ11
What group of organisms can breed to produce fertile offspring?
Answers
The answer is SPECIES
Species are groups of organisms that are sharing the same characteristics and are capable of interbreeding that produces fertile offspring.
A new species might arise in which they become reproductively isolated from the rest of the species. If these species are separated long enough, this could lead to arise or evolve genetic differences. These differences prevent them from interbreeding with the original species, which will result in the evolution of new species.
Oxygen acts as the thermal electron acceptor by combining with electrons and blank to form blank
Answers
Answer:
H+ ions // water
Explanation:
What happens in an aphotic zone of a body of water?
O A. Plants grow quickly.
B. Water flows in and out quickly.
O C. There is no photosynthesis.
O D. The water is stagnant.
Answers
Answer:
O C. There is no photosynthesis.
Explanation:
Aphotic zone of a body of water refers to the part where almost no sunlight. With this condition of water, marine life is limited to species who does not light for survival. The aphotic area also is the basin of the dead organism that submerges from the photic part. Temperatures at these areas are also low
In an aphotic zone of a body of water, there is no photosynthesis present (option C), as the aphotic zone is the portion of the body of water that receives little to no sunlight and therefore does not support photosynthesis.
What is an aphotic zone?The aphotic zone is the deep layer of a body of water that is not reached by sunlight. As a result, there is no photosynthesis in this zone, and plants cannot grow here. Since photosynthesis is the primary means of producing food and energy in most aquatic ecosystems, organisms in the aphotic zone have to rely on alternative sources of energy. In the aphotic zone, organic matter such as dead plants and animals that sink down from the photic zone provide a source of energy for organisms.
Hence, in an aphotic zone of a body of water, there is no photosynthesis present in option C.
Learn more about the apotic zone here.
https://brainly.com/question/4289412
#SPJ7
Fill in the missing word. Fossils can be formed from the ________ parts of animals that do not decay easily
Answers
Answer:
hard parts
Explanation:
such as bones and shells.
Magma that does not reach the surface is called: Extrusive rock Imbricated Rock Metamorphic rock intrusive rock
Answers
Answer:
extrusive rock
Explanation:
Answer:
extrusive rock
Explanation:
Question #22
Which two stages are most responsible for the genetic variation observed within a species?
A Anaphase I and Prophase I
B Anaphase II and Metaphase II
C Metaphase I and Metaphase II
D Metaphase I and Prophase I
Answers
Independent Assortment, Random Fertilization and recombination takes place during Metaphase I and Prophase I. Therefore, option (D) is correct.
What causes genetic variation in a species?Prophase I is when recombination or crossing across happens. Gene by gene, identical chromosomes—1 from each parent—pair along their lengths. Chromosomes break along their length, reunite, and exchange some of their genes. The chromosomes now contain a distinctive collection of genes. This causes genetic variation.
Random Fertilization and Independent Assortment in Metaphase I
The tetrads travel to the metaphase plate during metaphase I with their kinetochores pointing in opposite directions. The homologous pairs randomly align themselves with the equator. This occurrence is the second process that modifies gametes or spores.
Learn more about genetic variation, here:
https://brainly.com/question/16951216
#SPJ1
Which does not show a relationship between biotic and abiotic parts of an environment?
A. a wolf and the rabbit it hunts B. a beetle and the rock it lives under
C. a tree and the soil its roots grow in D. a river and the fish that swim in it
Answers
Answer:
A wolf and the rabbit it hunts.
Explanation:
The question asked for a relationship between biotic and abiotic parts of an environment. This example shows the relationship between two biotic parts in the environment.
Which choice best summarizes the outcome of Redi’s experiment?
Answers
The best summary of the outcome of Redi's experiment is that the experiment provided evidence against spontaneous generation by demonstrating that maggots do not spontaneously generate from decaying meat when it is isolated from flies.
Francesco Redi conducted an experiment in the 17th century to challenge the prevailing belief in spontaneous generation, which proposed that living organisms could arise spontaneously from non-living matter.
In his experiment, Redi set up two groups of jars containing meat. One group was covered with gauze to prevent flies from accessing the meat, while the other group was left uncovered.
Over time, Redi observed that maggots appeared only in the uncovered jars where flies had access to the meat, while the covered jars remained free of maggots.
This led Redi to conclude that maggots were the offspring of flies and did not arise spontaneously from the meat.
His experiment provided empirical evidence against the theory of spontaneous generation and contributed to the development of the concept of biogenesis, which states that living organisms come from pre-existing living organisms.
For more such answers on spontaneous generation
https://brainly.com/question/2081992
#SPJ8
i begging you please help me
Theme . Anatomical and functional features of
TMJ at children depending of age. Clinical examination of patient with TMJ pathology, classification of diseases. Diseases of TMJ in children, clinical symptoms of acute and chronic diseases. Differential diagnostics, principles of treatment, prevention of diseases.
1. The clinical signs of MPD are following except:
A. teeth frequently have wear facets
B. daytime clenching or nocturnal bruxism.
C. range of mandibular movement may be decreased.
D. diffuse, poorly localized, preauricular pain..
E. crepitus, located directly over the TMG.
2. Radiographic appearance of DJD:
A. decreased joint space, surface erosions, osteophytes, and flattening of the condylar head.
B. radiographs of the tmjs are usually normal.
C. MRI images usually demonstrate anterior displacement of the disk.
D. erosive changes in the anterior and posterior aspects of the condylar heads.
E. irregular articular surfaces of the condyle and fossa, with varying degrees of calcified connection between these articulating surfaces.
3. Synovial fluid is a:
A. liquid of lymphatic systems
B. serous exudate from articular cavitas.
C. oral liquid which mixed blood lubricant.
D. filtrate of plasma that passes through fenestrations in the subendothelial capillaries.
E. secret of epithelial lining which covered articular surfaces.
4. Click occurring during the opening movement. It’s sign of:
A. disk displacement disorders.
B. mpd.
C. djd.
D. ankylosis.
E. acute infectious arthritis.
5. When the mandibular condyle translates anteriorly in front of the articular eminence and dislocations can’t be reduced may be necessary:
A. limitation of motion.
B. anesthesia of the auricular temporal nerve and the muscles of mastication.
C. using of stronger analgesics.
D. emg biofeedback and relaxation training, ultrasound, spray and stretch, and pressure massage.
E. occlusal splints.
6. Tricyclic antidepressants are administered in patient with:
A. systemic arthritic conditions.
B. acute arthritis.
C. anterior disk displacement without reduction.
D. degenerative joint disease.
E. mpd causing bruxism
7. The articular disc receives nutrition from:
A. intercellular space.
B. true vessels.
C. vessels of fibrous cartilage.
D. sinovial fluid. E. oral liquid.
8. By MPD the pain is a result of:
A. damage of articular disk
B. increased pressure in joint space.
C. abnormal muscular function or hyperactivity.
D. accumulate exudate in joint space.
E. articular surface flattening, erosions.
9. The pain syndrome in infectious arthritis of TMJ is result of:
A. increased pressure in joint space.
B. abnormal muscular function or hyperactivity.
C. damage of articular disk.
D. accumulate exudate in joint space.
E. articular surface flattening, erosions.
10. Etiologic factors suggested as contributing to the development of TMD are following except:
A. trauma.
B. immaturity of connective tissue structures.
C. occlusal factors.
D. parafunctional habits. E. posture.
11. Malocclusion associated with TMD is following:
A. all of above listed.
B. skeletal anterior open bite.
C. overjet greater than 6 to 7 mm.
D. retrocuspal position (centric relation) to intercuspal position (centric occlusion) slides greater than 4 mm.
E. unilateral lingual cross bite.
12. The muscles should be palpated for the presence of following features except:
A.spasm.
B. tenderness.
C. fasciculations.
D. fiber disruption
E. trigger points.
13. Normal range of movement of an adult's mandible is about:
A. 45 mm vertically (i.e., interincisally) and 10 mm protrusively and laterally.
B. 35 mm vertically (i.e., interincisally) and 15 mm protrusively and laterally.
C. 25 mm vertically (i.e.,
interincisally) and 10 mm protrusively and laterally.
D. 15 mm vertically (i.e., interincisally) and 15 mm protrusively and laterally.
E. 55 mm vertically (i.e., interincisally) and 20 mm protrusively and laterally.
Answers
Explanation:
I have provided the answers to the questions based on the given text below:
1. E. crepitus, located directly over the TMG.
2. A. decreased joint space, surface erosions, osteophytes, and flattening of the condylar head.
3. B. serous exudate from articular cavitas.
4. A. disk displacement disorders.
5. E. occlusal splints.
6. E. mpd causing bruxism
7. C. vessels of fibrous cartilage.
8. C. abnormal muscular function or hyperactivity.
9. D. accumulate exudate in joint space.
10. B. immaturity of connective tissue structures.
11. A. all of above listed.
12. D. fiber disruption. 13. A. 45 mm vertically (i.e., interincisally) and 10 mm protrusively and laterally.
which of the structures transmits dynamic equilibrium information to the brain ?
Answers
What are side effects from cancer treatments
Answers
2.5 Draw a labelled leaf and indicate the colour change in the green and white parts of the leaf, after the second starch test. (3) (14)
Answers
The leaf acquires a blue-black coloration in the green part after the starch test.
What is the iodine test for starch?The iodine-starch test is a chemical process used to detect the presence of iodine or starch.
Starch and iodine together produce a deep blue-black color.
To test a leaf for starch, a few drops of iodine solution are placed on a boiled leaf. If starch is present in the leaf, the iodine will react with the starch molecules and form a blue-black color complex. If starch is not present, the iodine will remain yellow or brown in color.
Learn more about the starch test at: https://brainly.com/question/30366250
#SPJ1
What two abiotic factors must be present in order for gypsum to form
Answers
The two abiotic factors that must be present in order for gypsum to form are that they have essential effects on dessert and the environment. In general, gypsum is made of many abiotic components. Abiotic components such as temperate deserts, and subtropical deserts.
One type of saline soil is formed by Gypsum. Gypsum is a soft, chalky mineral composed of calcium sulfate \(CaSO_{4}\) and water \(H_{2} O\). Here spatial variability means it maintains the even layer of the soil its decomposition and can develop the soil moisture. Gypsum is a nonclastic rock and transparent mineral. Deserts can be categorized by their low mean rainfall, even though it is just as essential to calculate the temporal and spatial variability in yearly rainfall. Gypsum is made up of oxygen \(O_{2}\), sulfur S, calcium Ca, and water \(H_{2} O\).
Learn more about Gypsum:
https://brainly.com/question/18369612
Do you support applying GE on human? Please explain your
answer using the theories of ethics.
(plss pasagot po,asap!ty)
Answers
Explanation:
In medicine, genetic engineering has been used to mass-produce insulin, human growth hormones, follistim (for treating infertility), human albumin, monoclonal antibodies, antihemophilic factors, vaccines, and many other drugs. In research, organisms are genetically engineered to discover the functions of certain genes.
In research, organisms are genetically engineered to discover the functions of certain genes.
What are functions of genes?Genes are the building blocks of life. They contain information for making specific molecules and proteins that allow human cells to function and that control how the body grows and operates.
Genes carry the hereditary information from one generation to the next. They control the structure and metabolism of the body. Reshuffling of genes at the time of sexual reproduction produces variations.
The main function of genes is to control the production in an organism's cells. Proteins help determine the size, shape, color, and other traits of an organism. A gene is a section of a DNA molecule that contains the information to code for one specific protein.
Learn more about genes:
https://brainly.com/question/8832859
#SPJ2