While working on a group project for school, a student asked his group member to check his model of a section of DNA. Which feedback would the student receive?

a) The model is accurate because all bases are paired correctly.
b) The model is accurate because it shows all components of each nucleotide.
c) The model is inaccurate because the base pairs are incorrect.
d) The model is inaccurate because it is missing the required bases in DNA.

Recent research by marine biologists suggests that bottlenose dolphins have names for themselves. scientists played sounds they had identified as the names of particular dolphins, putting them through a synthesizer so that they did not sound like the voices of particular dolphins. the researchers found that dolphins would respond to the names of other dolphins that they were related to or associated with, but they ignored the names of strangers. this discovery suggests a much greater degree of self-awareness in aquatic mammals than was previously suspected. if this research holds up, what does it suggest about dolphins?

Waianapanapa beach in hawaii is a black-sand beach that was formed by waves crashing against volcanic rock. the sand can be very hot on sunny days. which statement best explains why? o a. the black sand has no heat capacity. b. the black sand absorbs no radiation. o c. the black sand is immune to insolation. d. the black sand has a low albedo.

Which enzymes break down carbohydrates?