natural selection and changes over generation

Question 1

What is a species

Answer 1

A group of organisms that can reproduce to produce fertile offspring

Question 2

What does fertile mean

Answer 2

Can produce more offspring

Question 3

What is reproductive isolation

Answer 3

Where two species are separated to the point where they can no longer interbreed

Question 4

What is introgression

Answer 4

When offspring mate with a parental species

Question 5

What is subspecies

Answer 5

A category where genes can be shared among different groups

Question 6

What is adaption

Answer 6

A feature of an organism that provides a benefit or advantage

Question 7

What are three main types of adaptions

Answer 7

Structural, behavioural, physiological

Question 8

What is a structural adaption

Answer 8

Physical features that assist an organism like a snails shell

Question 9

What is a behavioural adaption

Answer 9

Actions an organism does to gain a benefit like a snail retracting into its shell for protection

Question 10

What is a physiological adaption

Answer 10

Where ah organism does things unconsciously like a snail producing mucus

Question 11

What is evolution

Answer 11

The development of life on earth over time

Question 12

What is recombination

Answer 12

The random mixing of dna from two organisms

Question 13

What is mutation

Answer 13

Random changes in dna

Question 14

What is natural selection

Answer 14

Where random evolutionary changes are selected by nature to enhance survival and reproduction

Question 15

What are vestigial structures

Answer 15

Features in an organism that serve no function or purpose

Question 16

What is distribution in evolution

Answer 16

Occurrence of unusual species in isolated islands

Question 17

What is embryology and embryo

Answer 17

Study of similarities among organisms at early stages of developement, an organism at early stages of development after being born or hatched

Question 18

What is embryology and embryo

Answer 18

Study of similarities among organisms at early stages of developement, an organism at early stages of development after being born or hatched

Question 19

What is descent with modification

Answer 19

Children look and behave slightly different from parents

Question 20

Common descent

Answer 20

All living things are related

Question 21

Natural selection in depth

Answer 21

Organisms overproduce exhibit variations nature selects those best suited to survive and adapt

Question 22

3 prices of evidence of evolution

Answer 22

Artificial selection comparative embryology homologous structure

Question 23

Homologous structure

Answer 23

Same number of bones muscles orblood vessels due to common ancestors but serve different functions

Question 24

Analogous structure?

Answer 24

Features with similar functions but different structure

Question 25

Artificial selection

Answer 25

Breeding organisms for desirable traits

Question 26

Inbreeding and cross breeding

Answer 26

Mating between closely related organisms and then cross breeding is the opposite

Question 27

what is the nature that acts upon the environment called?

Answer 27

selective agent. may be a biotic factor (living thing) or abiotic factor (physical thing)