Ecology

Question 1

DNA

Answer 1

the fundamental and distinctive characteristics or qualities of someone or something, especially when regarded as unchangeable.

Question 2

Chromosomes

Answer 2

a thread-like structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.

Question 3

Genes

Answer 3

a distinct sequence of nucleotides forming part of a chromosome, the order of which determines the order of monomers in a polypeptide or nucleic acid molecule which a cell (or virus) may synthesize.

Question 4

Genetics

Answer 4

the genetic properties or features of an organism, characteristic, etc.

Question 5

Heritability

Answer 5

the proportion of this total variation between individuals in a given population due to genetic variation. This number can range from 0 (no genetic contribution) to 1 (all differences on a trait reflect genetic variation).

Question 6

Sexual reproduction

Answer 6

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

Question 7

Asexual reproduction

Answer 7

is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only.

Question 8

Gametes

Answer 8

a mature haploid male or female germ cell which is able to unite with another of the opposite sex in sexual reproduction to form a zygote.

Question 9

Zygote

Answer 9

a diploid cell resulting from the fusion of two haploid gametes; a fertilized ovum.

Question 10

Dominant

Answer 10

have power and influence over.

Question 11

Recessive

Answer 11

relating to or denoting heritable characteristics controlled by genes which are expressed in offspring only when inherited from both parents.

Question 12

Ecology

Answer 12

the branch of biology that deals with the relations of organisms to one another and to their physical surroundings.

Question 13

Ecosystem

Answer 13

a biological community of interacting organisms and their physical environment.

Question 14

Habit

Answer 14

the natural home or environment of an animal, plant, or other organism.

Question 15

Predator

Answer 15

an animal that naturally preys on others.

Question 16

Prey

Answer 16

an animal that is hunted and killed by another for food.

Question 17

Energy flow

Answer 17

Energy flow is the amount of energy that moves through a food chain.

Question 18

Food chain

Answer 18

a series of organisms each dependent on the next as a source of food.

Question 19

Food web

Answer 19

a system of interlocking and interdependent food chains

Question 20

Herbivores

Answer 20

an animal that feeds on plants.

Question 21

Carnivores

Answer 21

an animal that feeds on other animals.

Question 22

Omnivore

Answer 22

an animal or person that eats a variety of food of both plant and animal origin.

Question 23

Producer

Answer 23

a person, company, or country that makes, grows, or supplies goods or commodities for sale.

Question 24

Consumer

Answer 24

a person who purchases goods and services for personal use.

Question 25

Competition

Answer 25

the activity or condition of striving to gain or win something by defeating or establishing superiority over others.

Question 26

Interdependance

Answer 26

the dependence of two or more people or things on each other.