Answer:
II, III, IV, I
Explanation:
Blood pressure regulation is an example of negative feedback mechanism. When the blood pressure is low, sensor in the blood vessels called baroreceptors detect this and send a signal to the control center which is the hypothalamus.
The hypothalamus compares the current blood pressure with the normal and proceeds to send signals to the heart, as well as blood vessels and kidneys. The heart begins to beat faster, thereby increasing the heart rate and a a result, blood pressure goes back up to normal.
uhhhhh I think that its A
Answer:
Early in the development of the embryo, specialized diploid cells, called germ cells , are produced within the gonads (such as the testes and ovaries). Germ cells are capable of mitosis to perpetuate the germ cell line and meiosis to produce haploid gametes.
Answer:
is the times it takes to complete one cycle
Explanation:
higher the frequency of the wave, lower the wave period
Answer:
Endoplasmic reticulum: Sac filled with digestive chemicals
Ribosomes: Small structure that synthesizes proteins
Golgi body ( Golgi apparatus): Stack of membranes that packages chemicals
Lysosome: Structure that manufactures ribosomes
Mitochondria: Structures that converts nutrients to energy
Cell membrane: Membrane that surrounds and protects the cell.
Explanation:
I'm learning this too in school so I know this is right!
