Answer:a leech
Explanation: a parasitic relationship is one organism benefit on the other while the other is harmed
The mass and Volume is different even thought they have a similar shape and size
Answer:
Probably A.
Explanation:
Its either A or C. A is more probable imo
Answer:
The first picture shows how the two H athoms finds each other. The second one, how these H athoms start's to form a covalent bond describing it by Lewi's estructure. And the last one, shows how the two athoms of H formed an H2 molecula.
Explanation: