Why can yeast be considered to be a parasite? A. Yeasts are helpful towards other organisms.

B. Yeasts are considered to be a food source by some organisms.

C. Yeast can only move by being carried by another organism.

D. Yeasts can harm other organisms.

The oxidizing agent our bodies use to obtain energy from food is oxygen (from the air). if you breathe 15 times a minute (at rest), taking in and exhaling 0.5 l of air with each breath, what volume of air do you breathe each day? air is 21% oxygen by volume. what volume of oxygen do you breathe each day?

You can tell from this karyotype that the individual is female because the karyotype has two chromosomes labeled

What element is able to combine with itself and hydrogen to form large molecules ?