The eyes of a planarian provide
A) three-dimensional images, but in black and white.
B) two-dimensional images.
C) a higher degree of resolution than human eyes.
D) information about light intensity and direction.
Answer: D
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Which of the following is not evidence supporting the Lyon hypothesis of X inactivation?
A. Female mammals that are heterozygous for X-linked traits are phenotypically mosaics. B. A highly condensed structure is consistently observed in female cells, but not in male cells. C. A female cat that is homozygous for coat color cannot produce calico offspring. D. Calico patterns of coat color are never exactly the same. E. A genetically normal male cat can never be calico.
Microscopically, this fungus appears barrel shaped with thick walls, which best describes which type of conidia?
a. Macroconidia b. Chlamydoconidia c. Arthroconidia d. Blastoconidia
A dung beetle is an example of a:
A) producer. B) detritivore. C) secondary consumer. D) tertiary consumer. E) primary consumer.
A tropic hormone is a hormone __________.
a. that is produced by the hypothalamus but stored and released from the anterior pituitary b. that acts by negative feedback to regulate its own levels in the body c. from the hypothalamus that regulates hormone secretion of the posterior pituitary d. that stimulates other endocrine glands to release hormones e. that is released in response to nervous stimulation