Why is blood pressure low in fish?
a. Blood must flow through sinus venosus
b. Water enters slightly deoxygenated.
c. Fish are not susceptible to hypertension conditions.
d. Blood does not return back to the heart.
d
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The questons below refer to the following phylogenetic trees
I. II. III. IV. 12) Which tree depicts the microsporidians as a sister group of the ascomycetes? A) I B) II C) III D) IV
Damage to the substantia nigra, a specific region of the basal ganglia, can produce the resting muscle tremors characteristic of what disease?
A. epilepsy B. Parkinson disease C. seizures D. Alzheimer disease E. insomnia
Which statement is NOT true of diffusion?
a. The process requires a concentration gradient. b. The particles diffuse faster when the concentration gradient is steep. c. The uncharged particles also move down electrical gradients. d. Each particle moves down its own concentration gradient. e. The process requires ATP.
Why are nitrogen and the nitrogen cycle important to living things?
A) The release of nitrogen during cellular respiration contributes to global warming. B) Nitrogen is an important biotic component of ecosystems. C) Nitrogen is an essential part of all organic molecules. D) The release of nitrogen from fossil fuels counteracts global warming. E) Nitrogen is an essential part of proteins, RNA, and DNA.