If their environment changes to have only large rocks, which of the following guppy populations will most likely survive?
Answers
If their environment changes to have only large rocks, the guppy populations that will most likely survive is option D: Populations 2 and 3 will most likely survive.
Why are guppies important to the ecosystem?A recent study on guppies demonstrates that rather than adapting to the risk of being eaten, animals evolve in reaction to the environment they create when predators are absent.
In some form of introduction sites, guppies take over as the predominant fish species. By boosting primary productivity, recycling nitrogen, and nitrogen fluxes to grazers and filter feeders while decreasing nitrogen fluxes to collector-gatherers, they disturb these ecosystems.
Therefore, A low-predation environment was introduced to guppies, who then adapted to it by having bigger, fewer offspring with each reproductive cycle. Guppies that settled in high-predation areas lacked this adaption. Hence option D is correct.
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Q.
Guppies are small fish that live in South American rivers. They can have different-sized spots on their bodies.
The river bottoms are covered in rocks. Guppies with spots that are the same size as the rocks on the bottom are harder for bigger fish to see and catch.
The diagrams show three possible guppy populations.
If their environment changes to have only large rocks, which of the following guppy populations will most likely survive?
answer choices
Only Population 2 will survive because it is the only population with variation.
All the populations will survive because the guppies will change the size of their spots if they need to.
Populations 1 and 2 will most likely survive.
Populations 2 and 3 will most likely survive.
Related Questions
What was the probability of any of your puppies getting the mother’s trait?
Answers
Answer:
Their puppies have a 75 percent chance of resembling their parents. The pups have a 25 percent chance of resembling neither parent, if their hidden recessive .
Explanation:
The nuclei of dog cells contain important genetic data. The dog has 39 pairs of chromosomes in each cell (39 from the mother and 39 from the father).
Answer: A puppy has 78 chromosomes, 39 of which come from the mother and 39 from the father. Within each of these chromosomes, there are genes. It is these genes that determine what the puppy looks like depending on how they are combined. Some genes are dominant and others are recessive. Expressed genes are in pairs. You only need one dominant gene in a pair to get that trait expressed, where are a recessive trait requires both genes to be recessive. For example, blue eyes is a recessive trait, which is why in humans, two blue eyed parents can only have blue eyed children. Genetics can be very complicated, but the simple answer to your question is that no there is no specific percentage of how much a puppy will look like its father and mother. It all depends on the genes each parent carries, the type of gene (dominant or recessive), and how the genes assemble. I hope this helps!
What are the grades of muscle strength?
Answers
The grades of muscle strength are 0 - No contraction, 1 - Trace contraction, 2 - Poor contraction, 3 - Fair contraction, etc.
Muscle strength is often assessed by medical professionals using a grading system that assigns a score to a patient's ability to move a particular muscle or muscle group against resistance. There are several different grading systems, but one commonly used system is as follows:
0 - No contraction: The muscle cannot produce any movement or contraction.
1 - Trace contraction: The muscle can produce a small amount of movement or contraction, but it is not enough to move the joint.
2 - Poor contraction: The muscle can move the joint, but only with gravity eliminated.
3 - Fair contraction: The muscle can move the joint against gravity, but cannot overcome any resistance.
4 - Good contraction: The muscle can move the joint against some resistance, but not against maximal resistance.
5 - Normal contraction: The muscle can move the joint against maximal resistance.
This grading system is used to assess muscle strength in different parts of the body, including the arms, legs, and trunk. It is also used to track changes in muscle strength over time, as well as to monitor the progression of diseases that affect muscle function, such as muscular dystrophy or multiple sclerosis.
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(Easy question) 15 points
1. When does your brain stop producing new neurons?
A. in your fifties
B. at about age 18
C. it doesn’t stop. Your brain continues to produce neurons throughout your life.
D. at about age 25
Answers
Answer:
D
Explanation:
Its based on research but shows that it can be at a younger age as well
The fossil record shows an invertebrate species in many layers of sediment for millions of year before suddenly going extinct, no
longer being found in any layers of sediment. After a stable existence with little change, this species vanished from the fossil record.
Which of these best supports the description of the fossil and the species it represents? Select ALL that apply.
es )
Answers
Answer:
c) The species underwent punctuated equilibrium
e) The species’ environment underwent a dramatic change for which it was poorly suited
Explanation:
State three effects of soil erosion on farming
Answers
Answer: These impacts include compaction, loss of soil structure, nutrient degradation, and soil salinity. These are very real and at times severe issues. The effects of soil erosion go beyond the loss of fertile land.
Explanation:
I love Biology
which of the following is a factor that determines the hardness of a fat at room temperature?A) Origin of the fatB) Degree of saturationC) Number of acid groupsD) Number of oxygen atoms
Answers
The following factor that determines the hardness of a fat at room temperature is B) Degree of saturation.
The degree of saturation refers to the presence of single or double bonds between the carbon atoms in the fatty acid chains that make up the fat. Saturated fats have all single bonds, while unsaturated fats have one or more double bonds. Saturated fats are generally solid at room temperature due to the straight and tightly packed structure of their fatty acid chains, which allows them to form strong intermolecular forces. This results in a higher melting point and harder texture.
On the other hand, unsaturated fats have one or more double bonds, creating kinks or bends in their fatty acid chains. These kinks prevent unsaturated fats from packing tightly together, resulting in weaker intermolecular forces, lower melting points, and a softer or liquid texture at room temperature. The origin of the fat, number of acid groups, and number of oxygen atoms are not primary factors in determining the hardness of a fat at room temperature. So therefore the correct answer is b. degree of saturation, is the factor that determines the hardness of a fat at room temperature.
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which of the following adaptations is often used by organisms to compensate for salinity in the ocean?
Answers
The adaptation often used by organisms to compensate for salinity in the ocean is osmoregulation. (A)
Osmoregulation is the process by which organisms maintain a constant internal salt and water balance, compensating for the high salinity levels in the ocean.
Marine organisms have various strategies for osmoregulation, including the excretion of excess salts through specialized cells called ionocytes, adjusting the permeability of their cell membranes, and consuming water-rich foods.
Fish, for example, have specialized gills and kidneys to filter out excess salts and regulate their internal salt concentrations. By maintaining an optimal internal environment, organisms can ensure their survival in the saline ocean conditions.(A)
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Complete question:
which of the following adaptations is often used by organisms to compensate for salinity in the ocean?
A) Osmoregulation
B) Reverse Osmosis
C) Osmosis
1.What are heterotrophs? How do heterotrophs get their food?
2.What are autotrophs? How do autotrophs get their food?
Answers
Answer:
Heterotroph is an organism that is unable to synthesize its own food,
they depends on autotrophs and others animal for their food
An autotroph is an organism that can make its own food by the
process of photosynthesis is called autotrophs
they get their food by photosynthesis
what is a blue sea stars domain?
Answers
Answer:
Linckia laevigata (sometimes called the "blue Linckia" or blue star) is a species of sea star in the shallow waters of tropical Indo-Pacific.
...
Please fill in!!
a. ATP
b. Light energy
C. C02
d. 02
e. Carbohydrate
f. Water
Would greatly appreciate if you answered like this:
18: ATP
19: etc..
Answers
18. b
19. c
20. f
21. e
22. d
23. c
24. f
25. a
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Answers
shsjjsjsnsnsmnsnwnsnsnwnsjsjsjsjshshsh.
Answer:-shsjjsjsnsnsmnsnwnsnsnwnsjsjsjsjshshsh.
explanation:-shsjjsjsnsnsmnsnwnsnsnwnsjsjsjsjshshsh.
hope it helps you!..
READING TOOL Connect to Visuals Before you read, preview Figure 12-7. Try to infer the read, revise purpose of this diagram. As you read, compare your inference to the text. After you your statement if needed or write a new one about the diagram's purpose. Take notes on the lines provided. Then view the Punnett square and answer the questions below regarding the genotypes and phenotypes.
Answers
The triallelic gene codes for the ABO blood type and its alleles express complete dominance and codominance.
What is the ABO blood type?Blood type ABO is determined by a triallelic gene I. Depending on the allelic interaction, this gene can express complete dominance or co-dominance.
IA and IB express complete dominance over i, meaning that the dominant IA and IB alelles hide the expression of the recessive allele i in heterozygous individuals.
Cross:
Parentals) IAIB x ii
Gametes) IA IB i i
Punnett square) IA IB
i IAi IBi
i IAi IBi
Therefore, The triallelic gene codes for the ABO blood type and its alleles express complete dominance and codominance.
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Write the lyrics of O Ramji bada dukh dina
Answers
Ga sa ga re pa ga re
Re ma pa ni dha, sa ga ma dha pa
Ni re ga pa ma re ma ga sa ga re ni re sa
O Ramji, bada dukh di na
Tere Lakhan ne bada dukh di na - 2
Sudh budh bisraayi meri neend churaayi
Mera mushkil kar diya jeena
Bada dukh di na
Tere Lakhan ne bada dukh di na
O Ramji, bada dukh di na
Voh deepak hai, main jalti hoon - 2
Voh hansta hai, main roti hoon
Mere pyaar ki kadar usse hogi magar
Mujhe zaher padega peena
Bada dukh di na, bada dukh
Cells have different membrane carbohydrates if they do different ______.
Answers
What color would the bby and water turn with plants in the dark
Answers
Answer:
The water is drawn in the xylem through capillary action and is dispersed through out the entire plant from stem to tips of the leaves and petals. When the water is colored, the color from the water can stain the plant, especially if it is a light colored plant, such as the white petals on our flowers.
Explanation:
Part A
You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:
Your timeline will span from 90 million years ago to the present. The common ancestor in your model is an arthropod that lived 90 million years ago. The gene that you’ll track codes for a protein in the species’ venom.
The DNA sequence you’ll track contains 10 nitrogen bases. You can choose the order of the bases and where the mutations occur.
This gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. To build your model, calculate the estimated time period it takes for 1 base pair to mutate.
The first time period will only show the common ancestor. At the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences.
The first and third descendant species will survive for the rest of the timeline. The second descendant species was extinct 50 million years ago.
Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning by constructing a mathematical equation.
Answers
Based on the mutation rate of the molecular clock, it will take 22.5 million years for one full base pair mutation to occur.
What is a molecular clock?A molecular clock is a biomolecule which is chosen to serve as a clock due to its periodical changes in a regular pattern.
Mutation in genes can serve as molecular clock.
The mutation in the gene of coding for the venom mutates at a rate of 0.76 base pairs every 17.1 million years.
It will take 17.1/0.76 = 22.5 million years for 1 base pair to mutate.
Therefore, it will take 22.5 million years for one full base pair mutation to occur.
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5. Practice: Fill in the two processes that cause each of the following transitions.
A. Ocean -> Cloud
B. Cloud → Glacier
Answers
Answer:
Ocean to clouds:When warmed by the sun, water on the surface of oceans and freshwater bodies evaporates, forming a vapor. Water vapor rises into the atmosphere, where it condenses, forming clouds. It then falls back to the ground as precipitation. Moisture can also enter the atmosphere directly from ice or snow.
Cloud→ Glacier: The moisture then cools and condenses onto dust in the atmosphere to form clouds. Once in cloud form, this water will STAY in the atmosphere until it precipitates to the ground and collects in GLACIERS, LAKES, or OCEANS.
Answer:
A. Evaporation & Condensation
B. Precipitation & Freezing
Explanation:
A. From ocean to cloud --> The water on the surface of ocean must evaporate to form water vapor. Then the water vapor must rise to the atmosphere and condense to form clouds.
B. From cloud to glaciers --> The water in the cloud must precipitate to fall down to the ground as rain. Then the rain gets freezes to form glaciers.
13. How does meiosis create genetic variation? Why is this important?
Answers
Answer: Meiosis creates genetic variation in a few ways. One way is through independent assortment, which is when the homologous chromosomes line up randomly during meiosis I. Another way is crossing-over, which is when homologous chromosomes break and exchange pieces during meiosis I.
Genetic variation is important because it helps ensure that the population can adapt to changes in the environment. If all the individuals in a population are exactly the same, then they are all equally vulnerable to changes in the environment, such as a new disease. However, if there is genetic variation, then some individuals may have the genes that make them resistant to the new disease. This means that the population as a whole is more likely to survive.
Explanation:
A basic DNA-matching method is used by a regional police force to try to identify criminals. This method has a one in 11141 chance of indicating a match between two samples even when they actually come from different individuals. Assume that the probability of a match is the same for any pair of samples from different individuals, and that the events of different individuals matching an unrelated sample are independent. The police force has a DNA sample from a crime scene and also has a bank of DNA samples from 36485 members of their community. However, the truth is that none of these people had anything to do with the crime. What is the probability that the method finds a match between the crime scene DNA and at least one person whose DNA is stored in the bank of samples?
Answers
The probability that the basic DNA-matching method finds a match between the crime scene DNA and at least one person whose DNA is stored in the bank of samples is 0.314 (approximately).
Let P be the probability that a single sample does not match with the crime scene DNA. Then the probability that all 36485 samples do not match is P^36485, and hence the probability that at least one sample matches is 1 - P^36485. From the problem, we know that the chance of a false match is 1/11141, which is approximately 0.00008959.
Hence, P is approximately 1 - 0.00008959 = 0.99991041.Therefore, the probability that at least one sample matches is 1 - P^36485, which is approximately 0.314 (rounded to three decimal places). Thus, there is approximately a 31.4% chance that the DNA-matching method will find a match between the crime scene DNA and at least one person whose DNA is stored in the bank of samples.
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Is TT genotype homozygous or heterozygous?
Answers
The genotype TT stands for the homozygous state, in which both alleles of a gene are present in a homologous pair. Alleles are various variations of a single gene.
If an organism possesses 2 versions of the same allele for a gene, it is said to be homozygous. An organism might be homozygous recessive (RR) or homozygous dominant (TT) (tt). A heterozygous creature is one that has two different alleles (Tt) for the same gene.
The presence of two identical alleles at a specific gene locus is referred to as the homozygous condition. A homozygous genotype can have two alleles with the same variance or two normal alleles.
A person is considered to be homozygous if they have two equal copies of a particular gene. A genotype with heterozygosity, on the other hand, possesses distinct alleles.
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What is the concern of two organisms filling
the exact same niche in the same
ecosystem?
A. The two organisms will compete.
B. One organism will move to a new niche.
C. Organisms often share niches in symbiosis.
Please help!
Answers
Answer:
A..
hope it is correct dear
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Answer:
organisms often share nitches in symbiisis
the energy of its flight muscles. this conversion is from what kind of energy to what other kind of energy?
Answers
The conversion of energy in the flight muscles of a bird is from chemical energy to mechanical energy.
Chemicаl energy is energy stored in the bonds of chemicаl compounds, like аtoms аnd molecules. This energy is releаsed when а chemicаl reаction tаkes plаce. Chemical energy is stored in the food that the bird consumes, and it is converted to mechanical energy when the bird uses its flight muscles to fly.
Mechаnicаl energy (kinetic energy or potentiаl energy) is the energy of either аn object in motion or the energy thаt is stored in objects by their position. This conversion of energy is necessary for the bird to be able to move and fly.
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in the early part of the twentieth century, scientists thought that proteins were the most likely carriers of genetic information. what characteristic of proteins led scientists to this belief?
Answers
In the early part of the twentieth century, scientists believed that proteins were the most likely carriers of genetic information because they knew that proteins were composed of 20 different amino acids, while DNA (the genetic material that we now know to carry the genetic information) was thought to be a relatively simple molecule made up of only four different nucleotides.
What is genetic?Genetics is the study of heredity, which is the passing of traits from parents to their offspring. It involves the study of genes, which are units of heredity that are responsible for the transmission of traits from one generation to the next. Genes are made up of DNA, which is a complex molecule that contains the instructions for the development and functioning of living organisms.
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according to the Minnesota Pollution Control agency water quality is usually exceptional high in the Northeast part of the state intends to degrade as you go to the South and Southwest some 40% of the lakes and streams are polluted with much of that censored in southern Minnesota in 6 far Southwestern Minnesota counties there are no lakes considered fishable and swimmable what is the most likely source of water pollution in the southern parts of Minnesota?
A. agriculture
B. mercury in rain
C. Thermal Pollution
D. factories and industry
Answers
Answer: Option A Agriculture
Explanation: As we move towards the South and southwest some 40% of the lakes and streams are polluted this is because of the agricultural run off. The fertilizers and other pesticides leach from the soil into the water bodies which can pollute water to a great extent.
The fertilizers contains many elements which is good for plants when they leach into the water bodies they are harmful for aquatic life.
Example: Presence of mercury in fertilizers can harm the aquatic life and acts as toxins above the permissible limit.
This is the main reason the water their is very polluted and is not fishable and swimmable.
why do different foods store different amounts of energy
Answers
Answer:
because they have different seed formation
Explanation:
What type of scientist would be the best qualified to perform genetic engineering to pro- duce seed that are more productive in agriculture? A. biochemist B. geologist C. molecular biologist D. paleontologist
Answers
The type of scientist best qualified to perform genetic engineering to produce more productive seeds in agriculture would be a molecular biologist, the correct option is C.
Molecular biologists specialize in studying the structure, function, and interactions of molecules within biological systems, including DNA and genes. Genetic engineering involves manipulating the genetic material of organisms, which requires a deep understanding of molecular biology principles.
Molecular biologists have the expertise to identify and isolate specific genes responsible for desired traits in crop plants, such as increased productivity or resistance to pests or diseases. They can then modify or introduce these genes into target plants to achieve the desired outcomes, the correct option is C.
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What type of offspring would result from a cross between a black rabbit (BB) and a white rabbit (bb)?
Answers
Which form of transport requires the expenditure of energy?.
Answers
During active transport, substances move against the concentration gradient, from an area of low concentration to an area of high concentration. This process is “active” because it requires the use of energy (usually in the form of ATP). It is the opposite of passive transport.
which of the following statements about concentric muscle action is false: a. the muscle shortens as it goes through the range of motion. b. an arm curl is a good example. c. the muscle is able to overcome the load. d. it is usually termed extension.
Answers
The following assertions concerning concentric muscle activity are untrue; it is typically referred to as extension. As a muscle contracts concentrically, its tension rises to face the resistance.
What does the body's muscle mean?Specialized cells called muscle fibers make up the physiology. Its primary trait is their capacity to contract. Objects were moved by muscles that are linked to blood vessels, vital organs, other bones.
The strongest of the body's muscles is?The biggest muscle inside the body is called as gluteus create productive. It is huge and powerful as it keeps the brain's trunk in such a standing posture. The key antigravity muscle that makes ascending stairs easier is this one.
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government of a country is interested in assessing and comparing human development across its three regions −A,B and C - based on three dimensions. The country consists of five people and their joint distributions of achievements in three dimensions within three regions are provided in the following table. For your convenience, the achievements have been normalised between zero and 10. D1, D2 and D3 refer to dimensions 1, 2 and 3, respectively. Elaborate and justify in detail how you would compare these three regions using various measurement tools for assessing human development. Please provide estimates and report your calculations up to three decimal figures.
Answers
a) Use the Human Development Index (HDI) to compare overall human development.
b) Calculate the average achievements in each dimension for each region.
c) Calculate the inequality-adjusted HDI (IHDI) to account for inequality in achievements.
d) Use the Gini coefficient to measure inequality in achievements.
e) Calculate the multidimensional poverty index (MPI) to assess poverty across dimensions.
To compare human development across the three regions (A, B, and C), various measurement tools can be used. One commonly used tool is the Human Development Index (HDI), which combines indicators of life expectancy, education, and income.
To calculate the HDI for each region, the achievements in each dimension (D1, D2, D3) should be averaged and then normalized between zero and 1. The HDI can be calculated using the formula: HDI = (D1 + D2 + D3) / 3.
Additionally, to assess inequality in achievements within each region, the inequality-adjusted HDI (IHDI) can be calculated. The IHDI takes into account the distribution of achievements across the population.
To calculate the IHDI, the Gini coefficient can be used to measure inequality in achievements. A lower Gini coefficient indicates lower inequality.
Furthermore, to assess poverty across dimensions, the Multidimensional Poverty Index (MPI) can be calculated. The MPI considers various deprivations individuals may face in multiple dimensions.
It measures the percentage of the population experiencing poverty and the intensity of their deprivations.
By using these measurement tools, including the HDI, IHDI, Gini coefficient, and MPI, a comprehensive assessment of human development, inequality, and poverty across the three regions can be obtained.
The calculations should be performed using the given achievements data and normalized between zero and 10, and the results can be reported up to three decimal figures to provide accurate comparisons and insights.
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