Question

A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in
an increase in the greenhouse effect.
a decrease in the greenhouse effect.
no change in the greenhouse effect.
a stabilization of the greenhouse effect
hich is accurate about the six kingdoms?
One is eukaryotic, and five are prokaryotic.
Four are eukaryotes, and two are prokaryotes.
Four are prokaryotes, and two are eukaryotes.
Three are eukaryotes, and three are prokaryotes.
Male peacocks have large colorful tails that they spread in a fan shape to attract females during courtship. Peahens (female peacocks) are more likely to mate with males that have larger and more colorful tails. As a result, few peacocks have tails with dull coloring.

A male peacock.

Which concept is demonstrated by a decrease in dull coloring?
speciation
biodiversity
natural selection
variation
A forest fire destroys an area. A small population of trees and a large population of birds are both affected. Which type of limiting factor causes this?
density dependent
density independent
population dependent
population independent
Which is the correct order of processes that occur as water moves from a lake to a cloud and then back to Earth's surface?
evaporation, condensation, precipitation
condensation, evaporation, precipitation
precipitation , condensation, evaporation
evaporation, precipitation, condensation
A Russian citizen has illegally obtained a Siberian tiger and is trying to sell the tiger’s fur in the United States. What treaty does this violate?
Tiger Treaty
Lacey Treaty
CITES
EPA
Which scientist disproved the idea that life comes from nonlife?
Anton van Leeuwenhoek
Louis Pasteur
Robert Koch
Paul Ehrlich
When comparing dogs to wolves, scientists found evidence that supports the idea they come from a common ancestor. Which combination of evidence would most strongly support this idea?
comparable anatomies, fossils, and behavior
different anatomies, similar development, and different DNA
comparable anatomies, similar development, and similar DNA
different anatomies, fossils, and behavior
he lava released by a volcanic eruption separates two populations of a species of monkey. What does this represent?
biological isolation
geographical isolation
temporal isolation
anatomical isolation
Which of the following examples can cause gene flow between populations?
an increase in predators to a population of zebra
a volcanic eruption that kills half of a population of mice
bird droppings that contain seeds from a different location
a person that sprays a toxin on a group of mosquitoes

Answer 1

1) A scientist measured an increase in nitrous oxide in the atmosphere. This increase would result in
- Answer: an increase in the greenhouse effect.
(Nitrous oxide is a greenhouse gas.)

2) Which is accurate about the six kingdoms?
- Answer: Four are eukaryotes, and two are prokaryotes.
(Bacteria and Archaea are prokaryotes; Protista, Fungi, Plantae, Animalia are eukaryotes.)

3) Male peacocks have large colorful tails... Which concept is demonstrated by a decrease in dull coloring?
- Answer: natural selection.
(Females preferentially mate with colorful males, so dull traits are selected against.)

4) A forest fire destroys an area... Which type of limiting factor causes this?
- Answer: density independent.
(Fires affect populations regardless of density.)

5) Which is the correct order of processes as water moves from a lake to a cloud and then back to Earth's surface?
- Answer: evaporation, condensation, precipitation.

6) A Russian citizen illegally obtained a Siberian tiger and is trying to sell the tiger’s fur in the United States. What treaty does this violate?
- Answer: CITES.
(Convention on International Trade in Endangered Species.)

7) Which scientist disproved the idea that life comes from nonlife?
- Answer: Louis Pasteur.

8) When comparing dogs to wolves, which combination of evidence would most strongly support common ancestry?
- Answer: comparable anatomies, similar development, and similar DNA.

9) Lava released by a volcanic eruption separates two populations of a species of monkey. What does this represent?
- Answer: geographical isolation.

10) Which of the following examples can cause gene flow between populations?
- Answer: bird droppings that contain seeds from a different location.
(Seeds carried to a new population introduce new alleles.)