What phrase describes the amount of light received by a given unit area over time?
A) solar precipitation
B) solar irradiance
C) solar flare
D) solar convergence
B
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Which of the following factors influence the
opening and closing of the stomata? a. rate of photosynthesis b. water availability c. concentration of carbon dioxide in the leaf d. light intensity e. all of these
Which statement about dinosaurs is FALSE?
a. Some species lived in social groups and hunted in packs. b. Dinosaurs were all slow-moving, with relatively low metabolic rates. c. Fossils of dinosaurs with feathers suggest that feathers first evolved to provide insulation. d. Dinosaur social behaviors include courtship rituals and parental nurturing of the young. e. Dinosaurs underwent an extensive radiation throughout the Jurassic and Cretaceous periods
Turtle hatchling survivorship rate is low in many turtle species due to predation. Amanda researched the predatory rate on a species of turtle eggs in the Red River. The eggs were harvested from trapped turtles and the egg's cloaca film (reproductive discharge) was either washed off or left on once gathered. Research suggests that predators use the female's cloaca scent to locate the eggs.The eggs were only handled when wearing gloves and then reburied along islands where the turtles were trapped. The nests were monitored by cameras and manually on foot and data on nest predation were recorded.Based on the experimental design, what is the control?
A. Hatchling survival rate B. Cloaca scent on eggs C. Time eggs spent in ground D. No cloaca scent on eggs
The ID50 for cutaneous anthrax due to Bacillus anthracis is 10-50 endospores, while the ID50 for inhalation anthrax is 10,000 to 20,000 endospores. This means that __________.
A) not enough information is available to answer this question B) neither cutaneous nor inhalation anthrax can easily be acquired. C) cutaneous anthrax is easier to acquire than inhalation anthrax D) inhalation anthrax is easier to acquire than cutaneous anthrax E) cutaneous and inhalation anthrax are equally easy to acquire