When a comet nears the sun, what happens to the nucleus?

1. It becomes solid.

2. It becomes visible.

3. It becomes gas.

4. It disappears.

Fruit flies can either have a brown or black body. The allele for a brown body (B) is dominant to the allele for a black body (b). A brown fruit fly crossed a black fruit fly as shown below.

According to the phylogenetic species concept, what is a species?

Which snack should you eat: a container of yogurt with some cheese (both high in fat or hard candy with soda pop (both high in glucose) ? Why?

Some vertebrates can go through nymph and pupa forms. True or False

Sort the chemical reactions based on whether they absorb or release energy. Burning a candle Producing electrical current Baking bread Activating a cold pack Photosynthesis You have to sort these into whether they absorb or release energy.

Which behavior can reduce pollution that occurs due to the use of coal?

How are fingerprints discovered at crimes?

Do plants such as ferns need to break down glucose to obtain usable energy? A. No, they absorb the sun's energy directly. B. No, they absorb energy from the soil. C. Yes, they make glucose and break it down to produce ATP. D.

Which carbon (s) on the sugar is (are) in dna is used to make the phosphate ester linkages? g?

Which of the following is not a means of water erosion? A. Streams B. Rivers C. Natural springs D. Ocean waves