Answer:
Commensalism
Explanation:
Commensalism is the condition in which one organism is harmed and the other is neither harmed nor benefited. The animals are being benefited but the tree is neither benefited nor harmed.
The answer would probably be the second choice
Newton’s 2nd law:
f=ma
force = mass x acceleration
Answer:
Gram-positive bacteria are surrounded by a single membrane, whereas Gram-negative bacteria are surrounded by a double membrane, with an outer membrane that is porous to ions and small molecules.
Explanation:
Cell wall structure differs in Gram-positive and Gram-negative bacteria. The Gram-positive bacterial cell wall is made up of a single homogenous layer in peptidoglycan. It is 20-80 nm thick and is present outside of the plasma membrane.
The cell wall in Gram-negative bacteria consists of a 2-7 nm thick peptidoglycan layer covered by 7-8 nm thick outer membrane. The porin proteins of the outer membrane for channels across it to allow the small molecules to enter the periplasm.
