When fat enters the small intestine, an emulsifier called is released into the small intestine to break up the large fat globules into smaller fat droplets?

Most land vertebrates can't drink seawater because A. their kidneys can't excrete concentrated salt. B. less water would need to be excreted by the kidneys. C. they don't have kidneys. D. their cells would eventually swell.

Cellular movement is often fueled by energy from ATP. True or false

Which research question about the largemouth bass and whirligig beetle would best match the scientists' observations? a. how log do fish spend rinsing their food? b. what is the favorite food of a larrgemouth bass? c.

What are cells made of

Which type of molecule includes an example with a long-chain carbon backbone

How do you explain that the variability in a domesticated species is greater than in the same species, or a similar one, in the wild? For example: dogs vs. wolves; chickens vs. red jungle fowl.

Which of the following traits do archaeans and bacteria share? A) composition of the cell wall B) lack of a nuclear envelope C) presence of plasma membrane D) both A and B E) both B and C

In a population of birds, the percentage of individuals having a certain gene changes from 20% to 60% over the span of several hundred years.

How many codons equal an amino acid?

R = red flowers r = white flowers According to Mendel's law of dominance, which statement best describes the result of a cross between parents with genotypes Rr and Rr? A) Only RR offspring will have red flowers.