Grade 9 Biodiversity

Question 1

any heritable trait that helps an organism, such as a plant or animal, survive and reproduce in its environment

Answer 1

Adaptation

Question 2

unique sequence of DNA

Answer 2

Genotype

Question 3

the different sources that provide food for the survival of humans and animals

Answer 3

Food Source

Question 4

match of a species to a specific environmental condition describes how an organism or population responds to the distribution of resources and competitors

Answer 4

A Niche

Question 5

A type of allele that when present on its own will not affect the individual. Two copies of the allele need to be present for the phenotype to be expressed

Answer 5

Recessive Allele

Question 6

What is a species?

Answer 6

a group of living organisms consisting of similar individuals capable of breeding with one another

Question 7

Nonheritable Characteristic

Answer 7

cannot be passed down from one generation to another, through genes

Question 8

the dependence of two or more people or things on each other
(example: bees and sexually reproducing flowers)

Answer 8

Interdependency

Question 9

Asexual reproduction

Answer 9

reproduction that does not involve the fusion of gametes or change in the number of chromosomes

Question 10

having two different alleles of a particular gene or genes

Answer 10

Heterozygous

Question 11

Heritable Characteristic

Answer 11

coded in our DNA and hence can be passed on to the next generation. Example: eye colour, height, complexion, hair colour

Question 12

detectable expression of the genotype

Answer 12

Phenotype

Question 13

Dominant Allele

Answer 13

dominance is the phenomenon of one variant of a gene on a chromosome masking or overriding the effect of a different variant of the same gene

Question 14

Homozygous

Answer 14

having two identical alleles of a particular gene or genes

Question 15

a variation of the same sequence of nucleotides at the same place on a long DNA molecule

Answer 15

Allele

Question 16

type of asexual reproduction in which a new organism develops from an outgrowth or bud due to cell division

Answer 16

Budding

Question 17

Define Population

Answer 17

the inhabitants of a particular area or amount of certain organisms. Eg. the population of humans on earth is 7.98 billion people

Question 18

Ecosystem

Answer 18

eographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life

Question 19

the hereditary material in humans and almost all other organisms

Answer 19

DNA

Question 20

Parasitism

Answer 20

relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm,

Question 21

type of symbiotic relationship where all species involved benefit from their interactions

Answer 21

Mutualism

Question 22

asexual reproduction by a separation of the body into two new bodies

Answer 22

Binary Fission

Question 23

Behavioral adaptation

Answer 23

something an animal does usually in response to some type of external stimulus in order to survive

Question 24

organism’s natural habitat, such as rainforests or wetlands, is altered to the point where it can no longer support the species’ existence

Answer 24

Habitat Loss

Question 25

Zoo Breeding Program

Answer 25

the process of maintaining plants or animals in controlled environments, such as wildlife reserves, zoos, botanic gardens, and other conservation facilities

Question 26

allows scientists to quickly create cell and animal models, which researchers can use to accelerate research into diseases such as cancer and mental illness

Answer 26

CRISPR

Question 27

any difference between cells, individual organisms, or groups of organisms of any species caused either by genetic differences (genotypic variation) or by the effect of environmental factors on the expression of the genetic potentials (phenotypic variation)

Answer 27

Variation

Question 28

Key to survival of speices

Answer 28

Variation

Question 29

describe the amount of species diversity in a given area
calculated as follows: number of species in the area ÷ total number of individuals in the area = biodiversity index

Answer 29

Biodiversity Index

Question 30

Speciation

Answer 30

occurs when a group within a species separates from other members of its species and develops its own unique characteristics