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BIO_UNIT_4_ASSESSMENT AB

Which of the following is the term for measuring the amount of an isotope and its daughter product in a rock to estimate the rock's age?

Selected Answer:

Radioactivity

Correct Answer:

Radiometric dating

 Question 2

3 out of 3 points

Which of the following is NOT a pattern of selection?

Selected Answer:

Indeterminant selection

Correct Answer:

Indeterminant selection

 Question 3

3 out of 3 points

Which of the following is the term for the physical or behavioral traits of organisms that lead to increased survival or reproduction?

Selected Answer:

Natural selection

Correct Answer:

Natural selection

 Question 4

3 out of 3 points

Modern horses have one toe. An ancestor of the horse, the Mesohippus, had how many toes?

Selected Answer:

Three

Correct Answer:

Three

 Question 5

0 out of 3 points

Which of the following is an essential difference between apes and hominins?

Selected Answer:

Apes are kept in zoos

Correct Answer:

The way they walk

 Question 6

24 out of 24 points

Place these Linnaean classifications in order from the most inclusive to the least inclusive.

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Correct Answer Selected Answer

Domain

Kingdom

Phylum

4. Class

Order

Family

Genus

8. Species

Species

 Question 7

30 out of 30 points

Match each question Item with its definition. Note: Some answers will not be used.

Question

Correct Match

Selected Match

Biological evolution H. H.

A change in the characteristics of a biological population

Macroevolution J. J.

The accumulation of The accumulation of

microevolutionary changes that results microevolutionary changes that results

in a new species in a new species

Scientific theory I. I.

A statement that provides the best explanation of an observation

Common descent D. D.

All living beings share a common ancestor

Homology E. E.

Similarities between species caused by having a common ancestor

Artificial selection M. M.

Selection imposed by human choice

Adaptations B. B.

Traits that increase an individual's

relative fitness in a particular environment

Traits that increase an individual's

relative fitness in a particular environment

Diversifying selection

Natural selection that favors two or more variants

Kingdom Animalia characteristics

Multicellular, rely on other organisms for food, mobile for at least part of its life cycle

Kingdom Fungi characteristics

Multicellular, rely on other organisms for food, reproduce by spores, body

made up of thin filaments called

hyphae

Multicellular, rely on other organisms for food, reproduce by spores, body

made up of thin filaments called

hyphae

• Question 8

Needs Grading

Pine trees that are too tall or too short do not do as well as pine trees that are average in height. The short trees do not get as much light as tall or average trees. The tall trees are more likely to break off in storms. Tell how this is an example of stabilizing selection. Be sure to define stabilizing selection in your answer.

Your response must be at least 75 words in length.

Selected Answer:

The type of selection that occurs when the extreme phenotypes on the sides of the spectrum can both not be able to survive.

In this case height is the spectrum of concern.One end of the spectrum are the tall trees while the others are the short ones.The tall ones get affected by the storm while the short ones do not get enough sunlight and as such both of them have limited chance of surviving leading to stabilizing selection

Correct

Answer:

[None]

Response

[None Given]

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• Question 9

Needs Grading

There is a moth in England called the peppered moth. Before Britain's industrial revolution, these moths were usually salt and pepper colored. Because of their coloring, they blended in well with the tree trunks on which they tended to rest. The coloring helped them hide from the birds that ate them. During the British industrial revolution, industry expelled a lot of soot from the burning of coal into the environment. This soot darkened the tree trunks, and it was noted that black-colored moths were becoming predominant. The idea is that with soot in the environment, black-colored moths fared better than light-colored moths. There is some debate as to whether this is actually the case or not, but for the sake of this question, let's assume it is.

In your own words, explain the concepts from the four observations discussed in 12.2 using the moth as an example. In other words, how does the moth illustrate the first observation, the second observation, etc.?

Your response must be at least 200 words in length.

Selected Answer:

The evolution of the peppered moth is evolutionary example based on the colour change. This so happen due to industrial revolution. that Increase in the dark coloured moths at the time of industrial revolution is example of industrial melanism. After industrial revolution from the pollution in the air affected the trees, therefore lead them to get more darker and also the peppered moth also get more dark. But some peppered moth are lighter in colour, which are easily able too see on the dark trees and due to which the predator easily find them. Because of the lighter colour they does not able to survive more. Hence, there are some debates begins with colour of the peppered moths. Due to the industrial revolution the trees get darker from the soot in the environment. And the peppered moth exits in both darker colour and lighter colour. But as the trees get darker from the soot in the environment the darker moths are easily hide their from the predator and while as predator attack on the lighter colour moth because they are easily spotted due to the darker background. therefore, as a result the darker moths become predominate and there selected for the natural selection and reproduction.

Correct

Answer:

[None]

Response Feedback:

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 Question 10

Needs Grading

Explain how homology is different from convergent evolution and give examples. Briefly define homology and convergent evolution in your explanation.

Your response must be at least 200 words in length.

Selected Answer:

Homology It is the relationship that exists between two different organic parts when their genetic determinants have the same evolutionary origin. There is homology between the included organs of two different species, when both derived from the corresponding organ of their common ancestor, regardless of how disparate they may have become. The four even limbs of vertebrates with jaws (gnatostomes), from sharks to birds or mammals, are homologous. In the same way, the end of a horse's leg is homologous to the middle finger of the hand and the human foot.

One of the most representative examples of homology is that between the gill cartilage of fish, the jaw of reptiles and the middle ear of mammals

Convergent evolution is the emergence of phenotypic similarities in two or more lineages, independently. Generally, this pattern is observed when the groups involved are subjected to similar environments, microenvironments, or ways of life that translate into equivalent selective pressures.

Among the most notable examples of convergent evolution we can mention the flight in vertebrates, the eye in vertebrates and invertebrates, fusiform forms in fish and aquatic mammals, among others.

A homology is the expression of the same genetic combination and that is assumed to be a common ancestor. An analogy on the contrary, is a structure similar to another or that has the same function, but whose embryonic development and its origin are different. They do not appear in a common ancestor, it is the result of evolutionary convergence

Correct

Answer:

[None]

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Tuesday, October 1, 2019 8:31:01 PM CDT

BIO_UNIT_4_ASSESSMENT AB

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