What technoligical advancement was nesccasary before scientist could begin to observe cells

Since asexual reproduction only requires one parent, how do asexually reproducing organisms ever experience any genetic variation?

The first electrons to be excited by light energy are found in ferredoxin. photosystem I. photosystem II. chloroplasts.

Can mold make u sick

Two species of fish have been found together in five different lakes. The larger, bottom-dwelling species feeds on large prey close to shore. A surface-dwelling species feeds on small plankton in open water.

What part of the brain can sometimes be referred to as the rind or outer covering?

What does the endosymbiont theory explain about the origins of plant and animal cell

Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1 if the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by

What is the average for the following measurements 7.1 g, 9.8g, 2.3g, 8.5g, 7.4g, 5.7g

Why is it that patches placed on the skin can be used to deliver medications to the bloodstream?

What is the correlation between women's education and family size?