Complete question:
In a separate study, 68 rock pocket mice were collected from four different, widely separated areas of dark lava rock. One collecting site was in Sonora, Mexico. The other three were in Chihuahua, Mexico. Dr. Nachman and colleagues observed no significant differences in the color of the rocks in the four locations sampled. However, the dark-colored mice from the three Chihuahua locations were slightly darker than the dark-colored mice from the Sonora population. The entire Mc1r gene was sequenced in all 68 of the mice collected. The mutations responsible for the dark fur color in the Sonora mice were absent from the three different populations of Chihuahua mice. No Mc1r mutations were associated with dark fur color in the Chihuahua populations. These findings suggest that adaptive dark coloration has occurred at least twice in the rock pocket mouse and that these similar phenotypic changes have different genetic bases.
How does this study support the concept that natural selection is not random?
Answer:
The study supports the concept that natural selection is not random because in different areas with the same or very similar environmental characteristics, the same phenotype was produced by different types of mutations.
Explanation:
All of the sampled animals are inhabiting dark substrate. Probably animals needed to camouflage to survive. Natural selection must have driven them to produce dark color, similar to the substrate color. So animals from the different regions suffered different mutations that drove them to have almost the same dark fur color. The environmental condition is favoring the same phenotype.
what are the the four main categories of organic macromolecules ?
Answer:
There are four major classes of biological macromolecules (carbohydrates, lipids, proteins, and nucleic acids), and each is an important component of the cell and performs a wide array of functions.
Four main categories of organic macromolecules are as follow:
carbohydratelipidsproteinsnucleic acidWhat are macromolecules?Macromolecules are polymers containing long chains of molecular sub-units known as monomers. These play an important role in biophysical processes and composed of thousands of atoms that are covalently bonded.
Carbohydrate is a biomolecule having carbon, hydrogen and oxygen atom.It is the main source of energy of the body.
Lipids are macromolecules that are insoluble in water and the main function is to serve as structural component of cell membrane.
Proteins are macromolecules that are extremely complex in structure and made up of amino acid residues joined by peptide bonds.
Nucleic acids are biopolymer macromolecules and composed of nucleotide. The function is to carry genetic information which helps to make RNA.
Therefore,Four main categories of organic macromolecules are as follow:
carbohydratelipidsproteinsnucleic acidLearn more about macromolecules here:
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Some people's earlobes dangle or flap unattached, while others don't. This trait is genetically determined. Use the genetics simulation to explore the genes that determine whether earlobes are attached or unattached. One trait is dominant and the other is recessive. See what happens when you cross parents with different genetic combinations. Follow the specific instructions for each trial.
Complete question, Answer, and Explanation:
Due to technical problems, you will find the complete question, answer, and explanation in the attached files
-2 In a pasture ecosystem a large portion of the biomass is represented
pasture vegetation compared to animals that feed on these grasses.
illustrated by such a pasture ecosystem is called alan...
A food chain.
B food web.
с ecological pyramid.
D energy flow.
a
Explanation:
im not really sure about the answer i chosed but maybe yes
Which resource is nonrenewable? A. Wind B. Trees C. Coal D. Soybeans
The text box below contains facts about salmon:
Facts about salmon. baby salmon migrate from freshwater streams and rivers to the ocean.
in the ocean, baby salmon d/r/i//n/k salt water.
Special cells on the salmon's gills called c/h//l/o//r/i/d//e cells help the salmon to e/x/c/r//e/t//e/ salt.
How do populations of baby salmon respond to changes in s/a//l/i//n/i//t/y as they migrate?
The baby salmon u/t/i/l/i//z/e// special structures but do not a/l/te/r/ their behavior.
The baby salmon al/t/e/r/ their behavior and u/t//i/l//i/z/e special structures.
The baby salmon u/t/i//l//i//z/e special structures to a/l/t/e//r their behavior.
The baby sa.l.m.on a/l/t/e/r their behavior but do not u/t/i/l//i/z/e special structures.
Answer:
what even is the question i am so cunfuzzles
You have been studying two Hippogriff traits as a senior graduation project at Hogwarts (because you are magical), beak size (big beaks, B, are dominant to small beaks, b) and feather color (brown feathers, F, are dominant to white feathers, f). You mate two brown, big-beaked Hippogriffs and obtain the following results: 15 of the baby Griffs are brown and big-beaked; 4 of the baby Griffs are white are big-beaked; and 1 of the baby Griffs is white and small-beaked. What are the genotypes of the parent Hippogriffs
Answer:
BbFf is the genotype of parent Hippogriffs
Explanation:
Given -
Big beaks, B, are dominant to small beaks, b.
Brown feathers, F, are dominant to white feathers, f.
Two brown, big-beaked Hippogriffs are mated to produce 15 brown and big-beaked; 4 white and big-beaked; and 1 white and small-beaked offspring
The genotype of parents is BbFf
competition a type symbiotic relationship is where
Answer:
they r ecological, not symbiotic
Does someone knows this question
Answer:
D. Viruses can have a lipid envelope derived from the host cell membrane. So they have the same phospholipids and glycoproteins (they also have specific viral proteins)