From what kind of molecules are nonsteroid hormones made?
What will be an ideal response?
amino acids
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Which of the following features of plant cells allows for apoplastic movement of water?
A) porous cell walls B) plasmodesmata C) large central vacuole D) endodermal cells
DNA polymerase assembles new strands
a. in a 5' to 3' direction only. b. in a 5' to 3' direction building one strand and a 3' to 5' direction building the other stand. c. in a 5' to 3' direction building the first half of a strand and a 3' to 5' direction building the second half of a strand. d. in a 3' to 5' direction building the first half of a strand and a 5' to 3' direction building the second half of a strand. e. in a 3' to 5' direction on the "old" 3' to 5' strand.
If calcium ions, each of which has a charge of Ca++, moved into a neuron, and no other ions were moving, what would be true
What will be an ideal response?
The liquid portion of the blood that consists of about 55% of the total volume of blood is referred to as ________
A) stem cells B) leukocytes C) plasma D) platelets