Which group of animals was the first to adapt to life on land by developing large lungs, eggs with a waterproof shell, and scaly, waterproof skin?

a. amphibians

b. birds

c. reptiles

d. worms

One kind of plant has only blue flowers and white flowers. According to a genetic model, the offsprings of a certain cross have a 75% chance to be blueflowering, and a 25% chance to be white-flowering, independently of one another.

Which characteristics best supports its information from sedimentary processes

According to both Gail Sheehy and Daniel Levinson, most people in their twenties are A. undergoing a period of identity crisis. B. focused on furthering their careers. C. in a bridging stage from adolescence to adulthood. D.

The outermost tissue layer of a cnidarian is the a. ectoderm. c. endoderm. b. mesoglea.

Seasonal variations in ocean temperatures can impact the populations of living organisms. If phytoplankton populations grow more quickly in cooler water, how would herbivorous fish be affected by the cooler seasons?

In order to prevent the possibility of venous stasis, a nurse is teaching a surgical client how to perform leg exercises.

Which of the following is not a correct equation for centripetal force? A. Fc=mac B. F=m v2/t C. F=m v/r

Which of the following is the path of a nerve impulse through a neuron?

9 Which is the basic functional unit of life? organism organ tissue cell

What is a good lab introduction? (Title, purpose, question, hypothesis, variables)