Which of the following macromolecules are a prominent part of animal connective tissue such as cartilage and keratin?
A. carbohydrates
B. lipids
C. proteins
D. Nucleic acids

__1__ is a climate cycle where the temperature of the __2__ ocean changes because of movements of air and ocean currents. during this period, the trade winds in the south __3__ , causing the __4__ water to move from the __5__ region to the __6__ region. 1) el nino or the monsoon 2) atlantic, indian, or pacific 3) reverse, strengthen, or weaken 4) cold or warm 5) eastern or western 6) eastern or western

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water