Competition between species 1 and species 2 is beneficial for species 1 and harmful for species 2. Indicate whether the statement is true or false
False - harmful
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Because membranes usually are not permeable to polysaccharides, nucleic acids, and proteins, how are cells able to incorporate these molecules?
A) These macromolecules are only incorporated into structures outside the membrane. B) Macromolecules are broken down extracellularly, and their subunits diffuse through the membrane. C) Macromolecules are digested extracellularly, and their subunits move through transport proteins. D) Macromolecules are transported via endocytosis and are digested within the cell. E) both choices C and D
The red spot on the beak of a herring gull parent is a sign stimulus received by baby gulls
a. True b. False
The loss of an electron by a molecule is called ____________________.
Fill in the blank(s) with the appropriate word(s).
What is the role of interleukins?
A) chemotaxis of leukocytes B) production of virally infected cells C) ensuring production of enough leukocytes D) signaling between leukocytes E) complement activation