The first true cells were most likely -

a.

aerobic.

c.

eukaryotic.

b.

anaerobic.

d.

archaebacteria.

Which of the following groups of animals only uses internal fertilization? mollusks amphibians fishes mammals

Unit used to measure work

Based on what you know about the six types of infectious agents, what type of agent do you think was plaguing Anna explain your reasoning

Which set of legs appears best adapted to carry an incubating egg mass?

State two reasons why accumulation of lactic acid leads to increase in heartbeat

Which structures could most likely be observed in cells in the low-power field of a compound light microscope?

If severe brain loss occurs before age 60, then it is usually due to drug abuse, poor circulation, viruses, and genes, not the result of normal aging. Thus, this is disease connected or: Deductive Vocational Metabolic Pathological

When enzyme action stops due to a build up of end product, this control is called ... ?

A pharmaceutical company is promoting a new estrogen skin patch for birth control. They say it is better because a woman only wears the patch for one week and then wears no patch for three weeks. Explain the logic behind this proposal.

Select the correct statement about nephrons. A. Podocytes are the branching epithelial cells that line the tubules of the nephron. B. Filtration slits are the pores that give fenestrated capillaries their name. C.