Compound eyes in invertebrate animals are composed of many smaller ommatidia.
Answer the following statement true (T) or false (F)
True
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The domestic dog has 39 pairs of homologous chromosomes. A dog's somatic cells have ________ chromosomes and gametes have ________ chromosomes.
A) 78; 78 B) 78; 39 C) 39; 15 D) 156; 78 E) 39; 39
The edible portion of the mushroom is the ________.
A. mycelium B. hyphae C. above-ground reproductive structure D. spore
What environmental factor seems to have the most impact on deep-sea, benthic organisms?
a. Low temperatures b. Extreme pressure c. Food availability d. Perpetual darkness
A pesticide was found to cause cancer in laboratory mice. Which of the following would be the most reasonable hypothesis to pursue?
a. The pesticide mutates one oncogene to a proto-oncogene and one tumor suppressor gene to an inactive form. b. The pesticide mutates an oncogene to a proto-oncogene. c. The pesticide mutates both tumor suppressor genes to inactive forms. d. The pesticide mutates both oncogenes to proto-oncogenes.