Which of the following best summarizes the passage? Volcanic rocks and mountains are found in Santa Cruz.

Chert has a heavy concentration of silicon and oxygen.

Sand is tiny bits of worn-out rock made mostly of oxygen and silicon.

A few common elements make up most of the planet's many compounds.

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Resperation is a way to release carbon back into the atmosphere

Match the following terms and definitions. 1. species that are adapted to live in equilibrium at carrying capacity population density 2. population growth that reaches equilibrium and carrying capacity population 3. death rate mortality 4. birth rate k-selected 5. a group of interacting individuals of the same species within the same geographic area natality 6. the number of organisms living in a particular area logistic growth

Which structure in the cardiovascular system connect arteries to veins?