The interior of the stomach is acidic, with a pH around 4. How does the acidity of the stomach contribute to digestion?

Which of the following features help terrestrial plants retain water and prevent dehydration in plants that have them? Choose both correct answers.

Different animals interact with plants as pollinators or seed dispersers. Identify whether each of the following is related to pollinators or seed dispersers. [a] aid in dispersal and founding of new plant populations [b] are typically attracted by floral characteristics [c] are typically attracted by fruit characteristics [d] enable sperm to reach eggs by helping the male reach the female

A toxin can bind to the gated sodium channels and prevent them from opening. This would directly prevent _____.

Plants take in all of the following nutrients through their roots EXCEPT for _____.

In the angiosperm life cycle, what is the function of each of the following?

An athlete lives at sea level. They will have to compete at 2,000 m above sea level. At that elevation, the athlete has a harder time sustaining activity and isn’t able to achieve the same level of performance they could at sea level. What is the primary reason this is the case?

A parasitic mistletoe plant grows on a tree and inserts its haustoria into the tree’s xylem. What would the mistletoe plant be obtaining from the tree? Choose both correct answers.

Which two of the following occur while a neuron is generating resting potential? Choose both correct answers.

How is the majority of O2 transported in blood?