What must happen for a solar eclipse to occur?

A) The moon must be full.

B) The moon must pass behind Earth.

C) The moon's orbit must cross the plane of the ecliptic.

D) The moon's orbit must not cross Earth's penumbra.

What is the volume of air that moves into and out of the lungs during a single unforced breath called? Tidal volume (VT) Inspiratory capacity (IC) Vital capacity (VC) Inspiratory reserve volume (IRV)

Describe the process that drives the uptake of oxygen and the release of carbon dioxide from living organisms such as humans, fish, and flatworms.

Which fills more that one column of the periodic table? (A) Noble gases (B) Alkaline earth metals (C) Transition metals (D) Halogens

Why are fungi important decomposers? They produce many spores. They can grow in many different environments. They produce mycelia. They recycle carbon and inorganic minerals by the process of decompos

Which of the following does not describe early mammals

How many different types of gametes can be produced by a plant with genotype aabbccddeeff?

What forms the rungs of the ladder of DNA?

Cuticular scale patterns in human head hairs tend to be very regular. Group of answer choices True False

Does Mitosis ever stop in cells? Explain your answer

Trichodesmium is a nitrogen-fixing cyanobacteria. Why might this cyanobacteria be important to other organisms in nitrogen-poor waters? They convert atmospheric nitrogen (N2) to organic compounds including ammonia (NH3).