Answer: The lock-and-key mechanism is usually associated with the complementary shapes of an enzyme with a single substrate wherein the lock that is being referred to is the enzyme and the substrate is the key. One right sized substrate (key) fits into the active site (key hole) of the enzyme (lock).
They provide the immune system with "memory" against previously encountered pathogens.
T memory cells are necessary for protective immunity against invading pathogens
Answer:
a = 20 m/s^2
Explanation:
F = m*a --> a = F/m = 320/16 = 20 m/s^2
DNA can illustrate that evolution has occurred since in the process of natural selection advantegeous genes or traits have been selected to pass on through generations and further more evolve as long as the species survies and is successful in reproducing.
Answer:
3A
4B
1D
2J
7E
10I
I’m not sure of the rest give me a second. (I’ll add the rest in the comments section) But hope this helps! :)
