Epithelial tissue I think this is correct
Answer:
A
Explanation:
Gram positive bacteria stain violet due to the presence of a thick layer of peptidoglycan in their cell walls, which retains the crystal violet these cells are stained with.
Answer:
There are 15 ways to select 2 bracelets.
There are 10 ways to select 2 pieces of jewelry that are not bracelets.
How many ways can Lauren select 4 pieces of jewelry, of which exactly 2 are bracelets?
150
hopes this helps :)
Explanation:
Answer:
d. the movement of myosin head while attached to actin myofilament
Explanation:
During muscle contraction, the calcium ions released from the sarcoplasmic reticulum in the sarcoplasm bind to troponin which in turn removes tropomyosin from the myosin-binding sites present on the actin. Hydrolysis of ATP at the myosin heads energize them. These myosin heads with stored energy bind to the myosin-binding sites on the actin filaments. In their bound conditions on the actin filaments, myosin heads are called cross bridges. Only one myosin head of a single myosin molecule forms cross-bridge at a time.
Answer:
B
Explanation:
evolutiin occurs by natural selection
