Question 7 of 10
2 points
what do proteins, carbohydrates, and lipids have in common?
o
a. they are all made of chains of nucleic acids.
b. they all use peptide bonds to bind amino acids.
o
c. they are all formed from the same elements,
o
d. they all contain the instructions for building organisms,
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The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.

Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources

Which of the following can occur to two segments of a population if they are geographically isolated 1.) they can only share some types of genes 2.)both groups most likely become extinct 3.)they find a way to come back together 4.)eventually they become separate species