In flatworms and sea anemones, circulation of
solutes and gases is by way of
a. interstitial fluid diffusion.
b. an open circulatory system.
c. a closed circulatory system.
d. cell to cell transport.
e. intracellular diffusion.
A
You might also like to view...
Each chromosome has one or more ________ site(s) where replication begins.
A. bifurcate B. origin C. promoter D. replicon
The organism Plasmodium falciparum causes malaria. In which type(s) of human cell(s) does it infect and grow?
A. liver and red blood cells B. intestinal cells C. liver and intestinal cells D. red blood cells E. liver cells
The neuron transport proteins that maintain the
resting membrane potential and restore ion gradients following an action potential are a. sodium-phosphorus passive transporters. b. sodium-potassium pumps. c. sodium-chlorine gated channels. d. phosphorus-calcium pumps. e. phosphorus-chlorine gated channels
A lichen is an example of a commensalistic relationship between a fungus and an alga
Indicate whether the statement is true or false