Competetion And Inheritance Flashcards
1
Q
Define habitat
A
The environment in which an organism lives
2
Q
Define population
A
The total number of organisms of the same species living in the same geographical area
3
Q
Define biotic
A
Living
4
Q
Define ecosystem
A
Both the abiotic and biotic parts of an environment and how they interact
5
Q
Examples of things that compete
A
- plants compete with each other for light, space, water and mineral ions
- animals compete for food, water, mates
6
Q
List the biotic factors
A
- food
- arrival of a new predator
- competition between species
- new pathogens
7
Q
List abiotic factors
A
- light intensity
- temperature
= if temp changes can cause distribution of species to change - water
- ph and mineral content of soil
= pH affects rate of decay and how fast minerals return to soil - wind intensity
- carbon dioxide and oxygen
= if co2 falls less photosynthesis
= o2 needed for aerobic respiration
8
Q
Define structural adaptation
A
- adaptations of body shape or bone structure
9
Q
Define behavioural adaptations
A
- changes to behaviour or lifestyle
-eg avoiding heat in daytime
= creating underground burrows
= keeps cool and away from predators
10
Q
Male chromosome
A
XY
11
Q
Female chromosome
A
XX
