The light-dependent reactions begin in a grouping of pigment molecules and proteins called a photosystem.
What will be an ideal response?
Photosystems exist in the membranes of thylakoids. A pigment molecule in the photosystem absorbs one photon, a quantity or "packet" of light energy, at a time.
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If the NaCl concentration drops below 1.5 M the cell walls of Halobacterium disintegrate.
Answer the following statement true (T) or false (F)
What molecules are released by activated helper T cells?
A. antigens B. immunoglobulins C. cytokines D. antibodies
Owl species A has a carrying capacity of 2000, while another owl species B has a carrying capacity of 200. What is the logical conclusion of this?
A) Species A is larger than B. B) Species B uses more resources per individual. C) Species A uses more habitat per individual. D) Species B feeds on A.
Identify these nitrogenous wastes.
A: ________B: ________C: ________
What will be an ideal response?