Why are plants like the venus fly trap and pitcher plant carnivorous?
a. The need additional carbon than is present in the soil
b. They need additional protein than what is present in the soil
c. They need additional mineral nutrients than what is present in the soil
d. They need additional energy than what is present in the soil
Answer: c. They need additional mineral nutrients than what is present in the soil
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Which of the following types of cells is matched with the wrong stem cell category?
A. embryonic stem cells, pluripotent B. embryonic germ cells, pluripotent C. hematopoetic stem cells, multipotent D. lymphoid progenitor, unipotent E. zygote, totipotent
Migratory birds in the Northern Hemisphere most likely head to tropical overwintering grounds because ____
a. they are looking for appropriate sites for egg-laying b. of seasonal changes in the abundance of predators c. they are looking for appropriate breeding sites d. of seasonal changes in food supplies e. they are ectotherms and cannot withstand cold temperatures
What conclusion can be drawn regarding a community in which many species are involved in a food
web?
a. It is more fragile since organisms have more than a single food source. b. It is more fragile since organisms have only a single food source. c. It is more stable since organisms have more than a single food source. d. It is more stable since organisms have only a single food source. e. It is very prone to damage from human interference.
If too little carbon dioxide is moving out of the lungs, ____
a. the blood pH will rise b. oxygen levels will rise c. bronchioles will relax d. blood vessels will relax e. respiratory activity will decrease