Log in
Sign up for FREE
arrow_back
Library

8.1 Introduction to Evolution [Mastery Check]

star
star
star
star
star
Last updated about 4 hours ago
21 questions
This is part 2 (of 2) for the Intro to Evolution assignment. Make sure you already completed Part 1 (practice) before starting this one!

This is the "Mastery Check" part of this assignment. Your answers to these questions will be graded for accuracy, and will not give you the option to check your answers before submitting like the practice assignment did. Make sure you are happy with all of your answers before you submit!
Required
0.2
Required
0.4
Required
0.2
Required
0.4
Required
0.4
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.2
Required
0.4
Required
0.4
Required
0.6
Required
0.6
Question 1
1.

What did Charles Darwin notice about the finch populations in the Galapagos islands?

Question 2
2.

Darwin was influenced by many different people, some scientists and some not. Below are some examples of things that Darwin may have considered or ways that he may have applied the ideas of these other people to the work he was doing.

Match each person to the reasoning or conclusion that best matches with their work.

These aren't descriptions of their work, but are ways someone might try to apply their ideas in a biology context.

Draggable itemarrow_right_altCorresponding Item
Charles Lyell
arrow_right_alt
animals have to compete for resources with other animals around them
Thomas Malthus
arrow_right_alt
animals have been around for a very, very long time
James Hutton
arrow_right_alt
if we see animals participating in some sort of process or behavior today, animals in the past probably also participated in those sorts of processes
Jean-Baptiste Lamarck
arrow_right_alt
organisms can have traits that are "better" or "worse" for their survival, and they can pass those on to their offspring
Question 3
3.

A caterpillar species lives on the ground in a forest. Most of the caterpillars are green, including Sam (one particular caterpillar). Sam is living his life happily on the forest floor, until the climate of the area shifts slightly, causing low grasses in the forest to no longer survive. The only effect this has on these caterpillars is that the ground is no longer green - instead, it is now brown.

What will most likely happen to Sam?

Question 4
4.

[MARK ALL THAT APPLY!]

Charles Darwin's theory of evolution requires....

Question 5
5.

[MARK ALL THAT APPLY!]

In order for a trait to be considered an "adaptation", it must...

Question 6
6.

After many generations, an insect species in the United States evolved, becoming resistant to a particular pesticide that was being widely used.

This most likely occurred because....

Question 7
7.

[MARK ALL THAT APPLY!]

Which of the following scenario(s) describes intrasexual selection occurring?

Question 8
8.

In evolutionary theory, individuals with a higher "fitness" are those that...

Question 9
9.

We know that when an animal (ex. deer) reproduces sexually, their offspring will have genetic variations, meaning they may have some genotypic and phenotypic differences as compared to their parents, siblings, or other members of the same species.

What is most TRUE about these variations?

Question 10
10.

Which of the following statements best describes the process of natural selection in a population?

Question 11
11.

A new bacteria begins to infect wheat plants across the United States. This bacteria, when it infects a plant, significantly slows the growth of the plant, and makes it very difficult for the plant to reproduce. To protect the wheat plants, scientists decide to insert a gene into the genome of the wheat plants. This gene is borrowed from another plant species; it codes for the production of a protein that is toxic to these particular bacteria, but is harmless to plants and animals.

What will most likely happen within the bacteria's population over time?

Question 12
12.

Which of the following scenarios would NOT be able to result in allopatric speciation?

Question 13
13.

Which of the following statements best expresses the concept of punctuated equilibrium?

Question 14
14.

The differences in cricket calls among sympatric species of crickets are examples of...

Question 15
15.

A population of giraffes lives in an area where the only food grows on high tree branches. Over many generations, these giraffes develop long necks to reach the branches. This is an example of:

Question 16
16.

A population of snails lives near a large factory. Close to the factory, the ground and air are several degrees warmer due to hot air exhausted from the building. Because of this, snails that live near the building breed in early May while those farther away from the building do not breed until June. Which statement below is most accurate?

Question 17
17.

Which of the following is most likely to be responsible for causing the great number of species we see on earth in the past and today?

Question 18
18.

[MARK ALL THAT APPLY!]

Which statements below are TRUE?

Question 19
19.

[MARK ALL THAT APPLY!]

Which of the following scenarios represents coevolution occurring?

Question 20
20.

Your answer must be 1-2 full sentences in order to receive full credit.

Why are there so many different definitions for what a "species" is? Why haven't biologists decided on a single, correct definition?

Question 21
21.

Your answer must be 1-2 full sentences in order to receive full credit.

If one of the three types of selection (stabilizing, disruptive, directional) were to occur within a particular population in a particular area, which type of selection would be MOST likely to lead to the creation of two new species, and why?