A bryologist (a scientist that studies mosses, and their allies) gives a lecture to your biology class. In her lecture, she makes a reference to fern reproduction. She says, "Fern spores germinate into ________."
A. gametophytes, which are often heart-shaped and have roots that anchor the fern to the substrate
B. gametophytes, which are often heart-shaped and have rhizoids that anchor the fern to the substrate
C. sporophytes, which are often heart-shaped and have rhizoids that anchor the fern to the substrate
D. sporophytes, which are often heart-shaped and have roots that anchor the fern to the substrate
Answer: B
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Plants have developed both cuticles and crassulacean acid metabolism (CAM) in an attempt to limit which of the following?
A. photorespiration B. excess photosynthesis C. PEP carboxylase loss D. water loss
The above diagram is an example of
a. a closed circulatory system with one heart. b. an open circulatory system with one heart. c. a closed circulatory system with a threechambered heart. d. an open circulatory system with a twochambered heart. e. a closed circulatory system with a fourchambered heart.
__________ lengthen stems, break dormancy in
seeds and buds, and stimulate flowering. Fill in the blank(s) with the appropriate word(s).
The common basilisk lizard will run across water on its hind legs in an erect position when startled by predators. This lizard has large feet and flaps of skin along its toes. What properties of water allow this lizard to walk on water?
A. Polar molecules are attracted to ions and polar compounds, making these compounds soluble. B. Hydrogen bonds absorb heat when they break and release heat when they form. This helps to minimize temperature changes. C. Hydrogen bonds hold water molecules together; many hydrogen bonds must be broken for water to evaporate. D. The surface tension created by hydrogen bonds is greater than the weight of the lizard initially.