Answer:
gravity & mass !
Explanation:
because the sun is so massive compared to earth, the sun keeps earth in a orbit with it. this magnetic pull is what makes our years
The pointed structure is known as rough endoplasmatic reticulum (RER), what's more, we can see that it is covered by dots that represent ribosomes. RER is covered of ribosomes that unite amino acids forming proteins, these proteins enter the RER and there are modified and later sent to the Golgi apparatus for final modifications and packaging.
The correct answer is allele.
I hope I helped!
1. Birth rate, death rate, immigration and emmigration.
2.Logistic growth takes into account carrying capacity.
3. The measure of organisms that make up a population in a defined area.
4. The number or quantity of people or things that can be conveyed or held by a vehicle or container.
5. Food, availability, water supply etc.
