Species And Adaptations 2

Question 1

How do different species avoid competition in the same habitat

Answer 1

Different species occupy different niches (way organism uses environment) so they tend not to compete with each other unless they occupy the same niche.

Question 2

Adaptation

Answer 2

Adaptations are characteristics which increase an organisms chance of survival and reproduction in its environment

Question 3

Co-adaptation definition and examples

Answer 3

Co-adaptation is when 2 species adapt simultaneously.
E.g whistling thorns let ants live in old swollen thorns to deter herbivores.
Ants have a place to live now

Question 4

What is Evolution process

Answer 4

Evolution process is
Mutation gives rise to new alleles in population
Selection pressure (abiotic/biotic) (predatory/prey/mates/pH/water) occurs, so some struggle to survive.
If there are Individuals with useful alleles they will be more likely survive and pass alleles to offspring
Increased frequency of new allele in population/advantageous allele frequency increases
May give rise to speciation

Question 5

What is evolution definition

Answer 5

Evolution definition is change in allele frequency within a population in response to a change in selection pressure.

Question 6

How can 2 different species evolve from a common ancestor

Answer 6

2 different species can evolve from a common ancestor by:
Populations are geographically isolated
Leading to reduced gene flow between 2 populations
Different selection pressures leading to natural selection