Evolution

Question 1

Sexual reproduction

Answer 1

the production of new living organisms by combining genetic information from two individuals of different types (sexes). In most higher organisms, one sex (male) produces a small motile gamete which travels to fuse with a larger stationary gamete produced by the other (female).

Question 2

Asexual reproduction

Answer 2

is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.

Question 3

Species

Answer 3

a group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding. The species is the principal natural taxonomic unit, ranking below a genus and denoted by a Latin binomial, e.g. Homo sapiens.

Question 4

Adaption

Answer 4

the action or process of adapting or being adapted.

Question 5

Evolution

Answer 5

the process by which different kinds of living organisms are thought to have developed and diversified from earlier forms during the history of the earth.

Question 6

Scientific Theory

Answer 6

is an explanation of an aspect of the natural world that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results.

Question 7

Natural selection

Answer 7

the process whereby organisms better adapted to their environment tend to survive and produce more offspring.

Question 8

Variation

Answer 8

a change or difference in condition, amount, or level, typically with certain limits.

Question 9

Behavioral adaptation

Answer 9

Behavioral adaptations are the things organisms do to survive.

Question 10

Structural adaptations

Answer 10

are physical features of an organism like the bill on a bird or the fur on a bear.

Question 11

Physiological adaption

Answer 11

are internal systematic responses to external stimuli in order to help an organism maintain homeostasis.

Question 12

Hibernation

Answer 12

the condition or period of an animal or plant spending the winter in a dormant state.

Question 13

Migration

Answer 13

seasonal movement of animals from one region to another.

Question 14

Selective breeding

Answer 14

involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics.

Question 15

Environmental pressures

Answer 15

reflect the impact of human activities on the environment

Question 16

Geotropism

Answer 16

the growth of the parts of plants with respect to the force of gravity.

Question 17

Photoropism

Answer 17

the orientation of a plant or other organism in response to light, either toward the source of light