The porphyrin ring of chlorophyll contains the element ___ and the role of the ring is to

Based on water temperatures, currents, and the potential kelp forest locations, identify one location where upwelling is most likely to take place. Explain your reasoning

Why do we only have fossils of a fraction of the things that have existed on Earth?

Dendrites are A. the conduction zone of a nerve cell. B. the input zone of a nerve cell. C. a type of glial cell. D. small interneurons.

How is a mixture different than a compound

A DNA model exploration

When an accurate experiment is repeated by another scientist, the results A) should be similar to those obtained originally. B) will be identical every time the experiment is repeated. C) should be completely different for a different scientist.

1. Which of the following forms all matter?

True or false Sedimentary rock can be formed from changes in igneous rock, but igneous rock cannot be formed from changes in sedimentary rock.

When a protein is denatured, why does it lose its functionality?

This is a rotating machine that converts the kinetic energy of the wind into mechanical energy. If the mechanical energy is used directly by machinery, such as a grinding stone, the machine is usually called a windmill.