Answer:
An immune response is a reaction which occurs within an organism for the purpose of defending against foreign invaders. The first contact that an organism has with a particular antigen will result in the production of effector T and B cells which are activated cells that defend against the pathogen.
Explanation:
Answer:
Because animals cannot produce energy directly from the sun, they must eat plants or other animals that eat plants, and acquire energy, either directly or indirectly, from glucose
Explanation:
Answer:
the population can increase rapidly when the conditions are favourable
only one parent is needed
it is more time and energy efficient as you don't need a mate
it is faster than sexual reproduction
Answer:
The 3 major observations were:
1. More individuals are produced each generation that can survive.
2. Phenotypic variation exists among individuals and the variation is heritable (through parents' genes).
3. Those individuals with heritable traits better suited to the environment will survive.
Explanation:
Charles Darwin was a British naturalist who proposed the theory of known to everyone as 'The Theory of Evolution' through natural selection.
