Which insect in the accompanying figure represents a group that parasitizes plants?
a. 1
b. 2
c. 3
d. 4
e. 5
c
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In most eumetazoans, the nervous system is derived mainly from which embryonic cell layer?
a. mesoderm b. epiderm c. mesoglea d. endoderm e. ectoderm
Which of the following statements about blisters is correct?
A. Blisters originate in the subcutaneous layer. B. Blisters are confined to the epidermis. C. Blisters originate in the dermis. D. Blisters result from a separation of epidermis from dermis.
Most of the carbon now present in the earth’s
atmosphere will eventually end up in what two reservoirs? a. plants and animals b. plants and decomposers c. plants and soil d. plants and oceans e. plants and fossil fuels
If both parents are homozygous for a disease-causing recessive gene, ____________________ of their children will be
affected. What will be an ideal response?