BIO 2 MECHANISM OF EVOLUTION

Question 1

change over time, is the process by which modern organisms have descended from ancient organisms.

Answer 1

EVOLUTION

Question 1

The process of changing to suit different conditions.
Adjustment to environmental conditions

Answer 1

Adaptation in english dictionary

Question 2

Adaptation is an inherited trait that increases an organism’s chance of surviving and reproducing in an environment

Answer 2

Adaptations in biology

Question 3

Have powerful legs to help it run fast and escape predators.

Answer 3

Structural adaptation

Question 4

They rest during the hottest part of the day helping it to conserve energy.

Answer 4

Behavioral adaptation

Question 5

The blood vessel in the jackrabbits ears expand to enable the blood to cool before reentering the body

Answer 5

Functional adaptation

Question 6

is a change in the structure of DNA in several chromosomes. The process of m___ may give rise to the formation of new alleles
which may be the source of genetic variation in a population.

Answer 6

Mutation

Question 7

The movement of alleles into or out of a population

Answer 7

Gene flow

Question 8

a change in the gene pool of a small population that takes place strictly by chance.

Answer 8

Genetic drift

Question 9

It is the process by which population of organisms with variations that help them survive in the environments live longer, compete better, and reproduce more than those that do not have the variation

Answer 9

Natural Selection

Question 10

Is the identification of desirable traits in plants and animals, and the steps taken to enhance and perpetuate those traits in future generations.

Answer 10

Artificial selection

Question 11

A slight difference in an inherited trait of individual members of a species
Occur in the offspring as a result of sexual reproduction

Answer 11

Variation

Question 12

A population of tortoises produces many offspring that inherit its characteristics

Answer 12

Reproduction

Question 13

A tortoise is born with variation that makes its neck slightly longer.

Answer 13

Variation

Question 14

Due to limited resources not all offspring will survive. An offspring with a longer neck can eat more cacti than others. It live longer and produce more offspring

Answer 14

Competition

Question 15

Overtime the variation is inherited by more and more offspring eventually all tortoises have longer neck

Answer 15

Selection

Question 16

The breeding of organisms for desired characteristics is called

Answer 16

selective breeding.

Question 17

Mutation can lead to changes in phenotype. Variation are caused by random mutations or change in genes

Answer 17

Mutations

Question 18

A change in the frequency of gene variants, alleles, in a population over generations.

Answer 18

Microevolution

Question 19

Formation of new groups or species, and happens over long time periods

Answer 19

Macroevolution