Answer:
b.they're all multi-cellular organisms
Answer: B
Explanation:
The T helper cell needs to acttivate the T cyctotoxic cell in order for the Tc cell to go do its work.
Once the TC cell is active it interacts with MHC-1 proteins on the surface of the infected host cell, this allows the Tc cell to recignise the host cell and begin secreting cytotoxins (perforins and granzymes) in order to degrade the infected cell and cause apoptosis (controlled cell death)
Answer:
is this land consistently like this?
what is the annual precipitation rate?
hiw many animals live here?
Explanation:
these are the kinds of questions asked
As the ball rises it DECREASES kinetic energy which means it INCREASES in gravitational potential energy