Which of the following statements about the compound eyes of arthropods is false?
a. Their sensitivity is decreased in dim light.
b. They can detect flickers up to a frequency of 200 or more per second.
c. They produce a composite image.
d. They are sensitive to red and UV light.
e. They appear faceted.
A
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The recessive phenotype of a trait occurs in 16% of a population. What is the frequency of the dominant allele?
A. 0.16 B. 0.36 C. 0.40 D. 0.48 E. 0.60 Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? · What key words does the question contain and what do they mean? Gather Content · What do you already know about the Hardy-Weinberg principle? How does it relate to the question? Consider Possibilities · What other information is related to the question? Which information is most useful? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Brushlike projections from the villi are
a. cilia. b. flagella. c. lymph vessels. d. microvilli. e. rugae.
Which part of the sperm cell contains enzymes to help the sperm digest a pathway into the egg?
A. centriole B. acrosome C. body D. head E. tail
John Tyndall demonstrated that microorganisms present in the air are carried on dust particles.
Answer the following statement true (T) or false (F)