The aptly named dead horse arum has a heat-producing flower. What advantage does this heat provide?
A) It enables blooms to emerge through snow.
B) It prevents inefficient pollinators from collecting pollen.
C) It warms the pollinators, which are usually bats.
D) It creates a barrier to invasive plant species.
E) It increases the evaporation of the scent, attracting pollinators from greater distances.
E
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Sympatric speciation occurred in the cichlid fishes within the same lake in Africa. How could this occur without physical separation?
What will be an ideal response?
What reaction does the enzyme alcohol dehydrogenase catalyze?
a. ethanol to acetate b. ethanol to acetaldehyde c. acetate to acetaldehyde d. acetaldehyde to ethanol e. acetaldehyde to acetate
Triglycerides ________
A) are fatty acids bonded to glycerol through hydrolysis B) have solid unsaturated forms at room temperature, such as butter C) can provide twice the energy per gram than proteins D) All of the above are true.
The menstrual cycle actually consists of two cycles that are interconnected: the ovarian cycle and the uterine cycle
Indicate whether the statement is true or false