What best describes why carbon is a useful building block. Carbon has 2 electrons in its outer shell and can form strong ionic bonds to build
solid structures
Carbon has 4 electrons in its outer shell and can form covalent bonds to build a
variety of structures
Carbon has 8 electrons in its outer shell and is a very stable atom

The first three phases of the cell cycle are collectively known as (1 point) play audio cellular respiration. telophase. mitosis. interphase.

Research cheetahs on the internet what has contributed to this animal becoming "endangered" or "threatened." what animal you have chosen? -cheetah how long has the animal been endangered or threatened? what has contributed to this animal’s endangered or threatened status? why is it important to save this animal from extinction? after researching and gathering facts, write a 350-word letter from the point of view of an animal rights' activist. be sure to include at least five facts that you learned from your research.

How does the nervous system affect the excretory system?