Question

Which of the following is an example of an organism that is considered a "living fossil?"

A. antelope
B. coelacanth
C. human
D. zebra

Answer 1

@Michelle27

Answer 2

Which of the following is true about chromosomes in different organisms?
A. All organisms have the same number of chromosomes.
B. Different organisms can have different numbers of chromosomes.
C. Humans have more chromosomes than any other organism.
D. Like humans, all organisms have 46 chromosomes.

Answer 3

Which of the following explains why genetic variation is necessary for evolution to occur in a population?
A. Without genetic variation, alleles in populations would cross over twice, so that the DNA would remain the same in a population, and evolution would not occur.
B. Without genetic variation, asexually-reproducing organisms could not mate and their species would die out.
C. Without genetic variation, DNA would stay the same from generation to generation, preventing the processes of evolution.
D. Without genetic variation, mutations would occur, wiping out entire populations before they could evolve.

Answer 4

How does the development of the theory of evolution relate to the nature of science?
A.
Scientists do not consider the observations and experimental data from scientists that lived before them when developing new theories.
B.
Scientists must hide their observations and experimental data from other scientists so they cannot steal it in order to develop new theories.
C.
Scientists with different scientific backgrounds combine their observations and experimental data to develop new theories.
D.
Only scientists with the same scientific backgrounds can combine their observations and experimental data to develop new theories.

Answer 5

@Destinymasha

Answer 6

1. B
2. B

Answer 7

3. C
4.C