True sea snakes are ________ and do not come to land to breed
a. oviparous
b. none of these choices
c. viviparous
d. ovoviviparous
c
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The figure is a photomicrograph of
a. a nucleus. b. a Golgi body. c. endoplasmic reticulum. d. a vacuole. e. a nucleoid.
The geographical distribution of hominids changed
dramatically during the Pleistocene due to the migrations of a. Australopithecus robustus. b. Australopithecus boisei. c. Homo erectus. d. Homo habilis. e. Homo sapiens.
What is the driving force for the movement of materials in the phloem of plants?
a) adhesion of water to phloem sieve tubes b) root pressure c) a difference in osmotic water potential between the source and the sink. d) gravity e) transpiration of water through the stomates
A host provides the means of reproduction for these acellular forms.
A. Plantae B. Fungi C. Algae D. Viruses