The phylum with endoderm, mesoderm, and ectoderm is

a. Cnidaria.

b. Porifera.

c. Platyhelminthes.

d. all of the above.

Which of these is a characteristic of warm air? A. It transfers energy through radiation. B. Its molecules are far apart. C. It sinks due to convection. D. It cools the land below it.

Intercostal nerves are also known as cervical nerves. extend through the sacrum. are found in the c6-t4 area of the vertebral column. do not enter into a plexus and directly connect to the structures they supply. do not exist in humans.

In which organism does respiration not take place in the mitochondria

Arrange the events of meiosis I of an animal cell in the correct order. Microtubules pull apart the homologous pairs toward opposite poles. Cytoplasm pinches inward near the cell furrow DNA condenses into chromosomes.

Is there a credible scientific theory that opposes evolution?

Describe two negative effects that water pollution can have on the environment. Explain one way water pollution can be reduced.

Some properties of diamond are different from those of graphite because diamond

Lipase is an enzyme (a type of protein) that breaks down fats. Which of the following statements about lipase are true? Select all that apply. Which of the following statements about lipase are true? Select all that apply.

Sammi was born 3 days ago and has lost 3 percent of her body weight. should her parents be concerned?

Ice wedging occurs because a given amount of ice has a volume (greater than, less than, the same as) an equal amount of water