Cells use blank to get energy only when carbohydrates are not available

Which of the following is a way to distinguish between dna and rna

What do alleles show different forms of?

In times of stress, activation of the sympathetic nervous system results in the adrenal gland secreting hormones that tend to:

Crocodiles, lizards, and snakes are all reptiles. However, lizards are more closely related to snakes than to crocodiles. Which statement MOST accurately describes how this relationship is explained in Darwin's Theory of Evolution?

In addition to comets, water for Earth's early oceans might have come from A. cyanobacteria. B. rivers. C. rain. D. volcanic eruptions

What is the difference between a physical and a chemical change

What is described by binary fission? A) The way prokaryotes move. B) The way prokaryotes produce energy. C) The way prokaryotes reproduce. D) The way prokaryotes digest nutrients.

There are many different ecological and environmental conservation methods. Which is not a conservation method? A) water harvesting B) fishing seasons and limits C) limiting of clear cutting of forests D) wind and wave erosion on coastal areas

Explain when and how dire wolves became extinct.

Which of the following is true biased thinking promotes scientific ideas open - restricts scientific thinking creativity Foster scientific discovery clothes minus cultivate scientific exploration