Answers25.26 TCEC BIO 1Evolutionary Relationships

Methods of Classification Answers

25 verified answers1 views
21
Free Preview

Consider the two male oryx that are shown below.Which of Charles Darwin’s main points is depicted in the image?

Question illustration
A
Organisms within a population compete with each other to survive.
B
Over time, beneficial variations will be passed on to future generations.
C
More offspring are produced than can be supported by an environment.
D
All organisms within a population have an equal chance for survival.
22
Free Preview

Thylacosmilus is a marsupial, and Smilodon is a mammal. Thylacosmilus and Smilodon both have saber teeth, but they do not share an ancestor that had saber teeth. What are saber teeth for these organisms?

A
analogous structures
B
homologous structures
C
vestigial structures
D
mutated structures
23

A bird that preys on moths is introduced to the habitat with moths and trees like the ones shown below. What will most likely happen to the population of moths in this habitat?

Question illustration
A
The population of moths will eventually become extinct.
B
The moths will evolve from dark to light due to a selective pressure.
C
The dark colored moths will experience disruptive selection.
D
The alleles that determine light and dark color in moths will equalize.
24

A biology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. Which is the least supportive example?

A
changes in genetics in human populations
B
antibiotic resistance in bacteria populations
C
pesticide resistance in garden insects
D
changes in the color of the peppered moth population in England
25

In a few generations, this population of beetles changed. Which is the most likely explanation for the change?

Question illustration
A
The beetle population moved to a greener habitat.
B
A natural disaster almost caused the extinction of the population.
C
The beetle population’s food sources decreased dramatically.
D
A mutation resulted in a new color of insect.

Did you find these answers helpful?

More from this Course

Quiz
10 verified answers

Unit Test

Quiz
10 verified answers

Lab: Using a Dichotomous Key

Quiz
10 verified answers

Evolutionary Relationships