Which kind of reaction is more common on Earth than the sun? A. chemical B. fusion C. fission D. cohesion

One function of both alcohol fermentation and lactic acid fermentation is to a. oxidize NADH to NAD+. b. reduce NAD + to NADH. c. reduce FAD + to FADH2. d. reduce FADH2 to FAD+. e. none of the above

Why does dna use thymine instead of uracil?

The main excretory product of frog is? [A] Urea [B] Ammonia [C] Uric acid [D] Amino acid

What light intensity and CO2 level do you think will maximize the rate of photosyntesis?

A pond fills with organic matter during what?

Ln mammalian cells, the synthesis of fatty acids is catalyzed by a multifunctional protein named: a) Acetyl CoA Carboxylase b) Carnitine acyltransferase c) Fatty acid synthase d) B-ketoacyl synthetase e) Acyl carrier protein

How does the energy available to organisms change within each feeding level of the pyramid? A. There is more energy available in the middle levels than in either the top or bottom level. B.

What types of environment do arthropods live in

Is a red blood cell more specialized than an amoeba, or is it the other way around?

Adaptive radiations can be a direct consequence of three of the following four factors. Select the exception. a. vacant ecological niches b. genetic drift c.