Consumers/producers: A surplus of consumers and a reduced amount of producers cause an ecosystem to collapse. Their are more mouths to feed then there is food
A challenge to traditional (pre-1860) ideas about species came from embryology, when it was discovered that embryos of dissimilar organisms, such as sharks and humans, resemble each other. Embryology involves the study of the formation and the development of an embryo and the fetus. It is one type of evidence of evolution such that the embryos of many different kinds of animals, mammals, reptiles, birds, fish among others, are similar showing a common ancestry.
Answer:
Arteries at at a higher pressure than veins.
Explanation:
Arteries receive blood after the heart beats, putting them at a higher pressure. They are also thicker than veins as well.
Answer:
TAGCCG
Explanation:
The sequence matches up with the corresponding Bases
A-T, C-G
This is possible by having different stem cells for different types of cells which then have different genes activated to make cells different