Unit 5 - History of Life on Earth

Question 1

What was theorized to be the source of energy that converted inorganic compounds into organic molecules?

Accepted Answer

lightning

Question 2

Which macromolecule came first in the development of life?

Accepted Answer

RNA

Question 3

Living things share six characteristics. Identify the three shown below.

Accepted Answer

respond to the environment, produce offspring, maintain homeostasis

Question 4

Which TWO (2) of the following are types of genetic drift?

Accepted Answer

founder effect, bottleneck effect

Question 5

Radiometric dating is used by scientists to measure the _____ of fossils.

Accepted Answer

age

Question 6

Statistically speaking, life DOES NOT exist outside of this planet.

Accepted Answer

False

Question 7

Living things share six characteristics. Identify the other three shown below.

Accepted Answer

have complex chemistry, consist of cells, grow and develop

Question 8

_____________________ is the random change in allele frequencies in small populations.

Accepted Answer

genetic drift

Question 9

"Survival of the fittest" is a simple way to describe what process?

Accepted Answer

natural selection

Question 10

Bactrian camels, dromedary camels, and llamas do not share a common ancestor

Accepted Answer

False

Question 11

A _________________ is a group of individuals of the same species that live in the same place at the same time.

Accepted Answer

population

Question 12

Which TWO (2) of the following types of Comparative Anatomy do provide evidence for evolution

Accepted Answer

homologous structures, vestigial structures

Question 13

What is the abbreviation we use for the last universal common ancestor?

Accepted Answer

LUCA

Question 14

Genetic variation is the differences in genotypes of organisms in a population that result in differences in phenotypes.

Accepted Answer

True

Question 15

Which scientist believed that organisms develop certain traits during their life, which are passed on to offspring?

Accepted Answer

Jean-Baptiste Lamarck

Question 16

Which FOUR (4) atoms are essential for the organic macromolecules found in living things?

Accepted Answer

carbon, oxygen, nitrogen, hydrogen

Question 17

Which TWO (2) scientists developed the theory of evolution through natural selection?

Accepted Answer

Charles Darwin, Alfred Russel Wallace

Question 18

_________________ is the addition or removal of alleles in a population as organisms move into or out of the population.

Accepted Answer

gene flow

Question 19

When comparing the genetics of two species, scientists will only look at sequences of DNA that code for proteins.

Accepted Answer

False

Question 20

All vertebrate embryos have tails and gill slits.

Accepted Answer

True

Questions 20