Male fireflies are recognized by females of their species by the pattern of their flashings, while male crickets are recognized by females of their species by their chirping. These are examples of ____________.
A. behavioral isolation
B. habitat isolation
C. temporal isolation
D. mechanical isolation
Ans: A. behavioral isolation
Biology & Microbiology
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A cell in prophase I of meiosis has ______________ as many chromosomes as each of the daughter cells following cytokinesis of meiosis II
A. twice B. half C. one-quarter D. four times
Biology & Microbiology
Prokaryotes may ingest particles via phagocytosis
Indicate whether this statement is true or false.
Biology & Microbiology
Which complex carbohydrate contains only a-1,4-glycosidic linkages?
a. Amylopectin b. Glycogen c. Cellulose d. Amylose
Biology & Microbiology
As sperm first reach the oocyte, they will contact the ________:
a. acrosome b. corona radiata c. sperm-binding receptors d. zona pellucida
Biology & Microbiology