Before testing for starch, the leaf is warmed in ethanol. The ethanol turns green. Why is this?

When an organism has two alleles forms for a certain gene, that organism is said to be

Which has more potential energy or are they the same, an apple on top of a tree, or one halfway down?

Five characteristics that make up living things different from nonliving things

When one dna molecule is copied to make two dna molecules, each new dna molecule contains:?

Chemical germicides a may react irreversibly with proteins/enzymes. b may react with cytoplasmic membranes or viral envelopes. c may be disinfecting or even sterilizing. d are sensitive to dilution factor, time of contact, and temperature of use.

Which spinal region lacks autonomic preganglionic neurons?

Which of the following is true about feedlots? A. Meat and dairy products that come from feedlot livestock are usually cheaper than other meat and dairy products. B. Livestock in feedlots usually graze on grass and are not allowed to eat grains. C.

According to the modern atomic model, electrons in an atom are always moving?

Asexual reproduction in which a single cell divides into two with no exchange of genetic material reproduction method of bacteria

When discussing population features a cohort is described as question 6 options: a all individuals living in the same habitat. b all the different species in a community. c all the organisms interacting in the ecosystem.