What are phagocytic leukocytes that attack parasitic cells by releasing toxic molecules once they have attached themselves to the parasite?
A) monocytes
B) basophils
C) eosinophils
D) neutrophils
E) macrophages
Ans: C) eosinophils
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Which of the following can be said about light in aquatic environments?
A) Water selectively reflects and absorbs certain wavelengths of light. B) Photosynthetic organisms that live in deep water probably use red light. C) Longer wavelengths penetrate to greater depths. D) Light penetration seldom limits the distribution of photosynthetic species. E) Most photosynthetic organisms avoid the surface where the light is too intense.
Which does NOT occur in prophase I of meiosis?
a. cytokinesis b. formation of groups of four chromatids c. homologue pairing d. crossing over e. condensation of chromatin
Lactose is a combination of:
a. sucrose and fructose. b. glucose and maltose. c. glucose and ribose. d. glucose and fructose. e. glucose and galactose.
The process of glycolysis in cellular respiration has the function of ________ .
a. producing 36 molecules of ATP b. breaking down acetyl-CoA c. breaking down pyruvate d. breaking down glucose e. producing ten molecules of ATP