subject
Biology, 21.05.2020 05:06 ruthd113

Question 1 (5 points)
Saved
Which of the following is a piece of empirical evidence supporting evolution?

Question 1 options:

Mycology

Progression of traits

Asexual reproduction

Biogeography

Question 2 (5 points)
Saved
What were the focus point of the finches that allowed Darwin to observe significant variations?

Question 2 options:

Feathers

Eyes

Beaks

Claws

Question 3 (5 points)
What happens to a population when it's larger than the available resources can accommodate?

Question 3 options:

The environment will produce more nutrients and resources to support the population.

All of the organisms in that population will die.

The organisms who need fewer nutrients will support the organisms who need more.

The organisms not well suited for that environment won't survive.

Question 4 (5 points)
Which of the following terms means that the organisms are structurally and functionally related?

Question 4 options:

Homologous

Analogous

Archaic

Vestigial

Question 5 (5 points)
What did the peppered moths signify in evolution?

Question 5 options:

Organisms are constantly changing, but they're only driven by internal changes.

Environmental factors can change which organism is best suited for survival.

The environment always has a detrimental effect on organisms.

Human behavior is the main driver behind artificial selection.

Question 6 (5 points)
A fossil record for whales demonstrates the evolution from one whale into two new whale species. Why is this supporting evolution?

Question 6 options:

The fossil record shows that the structure of the whale is changing over time, which is a requirement of evolution.

The fossil record shows that there are large splits in the development of new species, supporting macroevolution.

The fossil record shows that multiple species of whales have converged into one species because of best fit.

The fossil record captures every change in a species that leads to a new species.

Question 7 (5 points)
An organism has the allele frequency of a = 0.4 and b = 0.3. What's the frequency for allele c?

Question 7 options:

c = 0.3

c = 1.0

c = 0.0

c = 0.4

Question 8 (5 points)
Which of the following is/are not a condition affecting the Hardy-Weinberg equilibrium?

Question 8 options:

Genetic drift

Natural selection

Mutation

Recessive traits

Question 9 (5 points)
How do mutations occur?

Question 9 options:

Mutations occur through a negative change within that organism's DNA.

Mutations occur through the intentional alteration of amino acids.

Mutations occur randomly through changes in DNA.

Mutations occur as directed responses to changes in the environment.

Question 10 (5 points)
In polygenic traits, when the bell curve distribution of traits moves to one end of the curve because of a preference for best fit of that trait, what's this shift called?

Question 10 options:

Disruptive selection

Stabilizing selection

Directional selection

Nonjunction selection

ansver
Answers: 3

Another question on Biology

question
Biology, 22.06.2019 01:40
Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat
Answers: 1
question
Biology, 22.06.2019 02:30
Actinobacteria sp. are fermenting organisms (which do you use oxygen to breathe) referred to as chemoorganohetereotrophs this means they break down organic material and convert it to inorganic material. which part of the carbon cycle does this describe
Answers: 1
question
Biology, 22.06.2019 20:00
Name the tissue types that form the wall of each organ in questions 7-10
Answers: 3
question
Biology, 22.06.2019 20:50
Suppose a point mutation, such as a change from an adenine to a guanine, occurs in the genome of a human sperm cell. the mutation could occur in any region of a gene. the effect of the mutation on the phenotype of the offspring will be determined by where the mutation occurs and its effect on the final gene product. in which of the following scenarios could the mutation alter the phenotype of the offspring? select all of the scenarios that apply the mutation occurs in the promoter and affects the rate of gene transcription. the mutation results in a new, dominant allele the mutation occurs in a portion of an intron not responsible for exon splicing the mutation occurs in a gene that controls development and alters differentiation of a cell type during development. the mutation occurs in a codon and alters the function of the final protein e mutation occurs in a codon, and the amino acid sequence of the final protein is unchanged.
Answers: 1
You know the right answer?
Question 1 (5 points)
Saved
Which of the following is a piece of empirical evidence sup...
Questions
question
Social Studies, 20.08.2019 10:00
question
Mathematics, 20.08.2019 10:00
question
Mathematics, 20.08.2019 10:00
Questions on the website: 13722362