Polar cell: - occur 60 and 90-degrees from the equator, near the north and south poles. - associated with high pressure zones and low precipitation. what is the interaction between Ferrell and Polar cell circulation?
The only way to completely prevent Zika infection during pregnancy is to not travel to areas with risk of Zika and to use precautions or avoid sex with someone who has recently traveled to a risk area.
Answer: As a fertilized human egg divides, it first becomes a solid ball of cells, the morula. ... The cells of the outer layer of the blastocyst eventually form part of the placenta. Inside the ball is a small clump of cells, the inner cell mass, that will form all the tissues in the body.
Explanation:
Number 1 tendon, which connects muscle to bone
Number 2 ligament connects joints
Number 3 cartilage which stop bones from grinding together
