Endocytosis is an energy-using process. The answer is A.
It is called blind. a condition in which the participant is not aware if he/she is in the experimental or control group
All mentioned complexes (receptor-hormone, antibody-antigen, enzyme-substate) are involved in a molecular recognition.The molecular recognition involves <span>non-covalent </span> interaction between molecules. To form complex, molecules must be complementary in shape and charges, and usually, they are compared to key and lock. This way, the selectivity and specificity of recognition between molecules are assured.
Answer: divergent boundary where crust plates are.
Explanation: The Mid-Atlantic Ridge is a mid-ocean ridge, a divergent or constructive plate boundary located along the floor of the Atlantic Ocean, and part of the longest mountain range in the world.