An enzyme known as amylase is found in the saliva of humans. this enzyme to begin the process of digesting starch molecules in the foods we eat. which of these best describes how enzymes like amylase in the process of digestion?
a) amylase acts as a buffer to keep the ph of foods at a consistent level.
b) amylase breaks down the food molecules directly by forming powerful acids.
c) amylase is a catalyst that speeds up the chemical process of breaking down food molecules.
d) amylase contains the dna molecules necessary to assemble the proteins needed for digestion.

Nteractions between organisms and their environment impact the organism’s overall population. oahu amakihi and kauai amakihi are two closely related species of hawaiian honeycreepers. they have a common ancestor, eat small insects and nectar, and like to nest in koa trees. however, one species is found on the island of oahu, and the other is found on the island of kauai. which concept shows the relationship between oahu amakihi and kauai amakihi?

When is your respiration rate likely to change? a. when your intestines are digesting b. when your cells have too much glucose c. when your cells need more oxygen d. when your liver is working after a meal

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power