Which animal has eggs with waterproofing keratin, well-developed kidneys, internal fertilization, and is an ectotherm?
a. a snake
b. a dog
c. a toad
d. an owl
e. more than one of these
ANSWER: a
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A farmer has adopted a new program of integrative pest management. What will this program entail for the farmer and his crops? Select all correct choices
A. The farmer will assess which pests are consuming his crops. B. The farmer will use commercial pesticides sparingly. C. The farmer will introduce natural predators for the pests onto his farmland. D. The farmer will place nets around his crops (if possible).
Vascular plant bodies typically consist of a(n) ____ shoot system and a ____ root system
a. photosynthetic; photosynthetic b. nonphotosynthetic; photosynthetic c. photosynthetic; nonphotosynthetic d. nonphotosynthetic; nonphotosynthetic e. heterotrophic; phototrophic
The pairing of homologous chromosomes during meiosis I is known as ________
Fill in the blank with correct word.
Which of the following is not one of the three domains of life?
a. eukarya b. archaea c. bacteria d. fungi