Answer:
Kettlewell thought that if natural selection caused the change in the moth population, the following must be true: Heavily polluted forests will have mostly dark peppered moths. Clean forests will have mostly light peppered moths. Dark moths resting on light trees are more likely than light moths to be eaten by birds.
Yes, because there is only so much weight it can hold.
The human heart has only 4 chambers. Left and right atria and left and right ventricles.
<span>Yes, the lymphatic system absorbs glucose that is absorbed by small intestines for transport. this is done by the process of passive diffusion the glucose is taken into the blood stream.Along with this water.</span>
Answer:
1. Leads to mixing of genetic materials hence variation within species
2. Leads to offspring with hybrid viguor that tend to show high and adaptability to environmental conditions.
3. Variations due to sexual reproduction leads to improvement of species hence evolutionary changes that may bring about specialisation
