All organisms need energy to function. which cell organelle provides this energy? a) nucleus b) chloroplast c) vesicle d) ribosomes

This is a coral reef ecosystem. many biotic and abiotic factors affect the health of this ecosystem. which set correctly pairs a biotic factor and an abiotic factor?

How does this experiment explain why it is often milder in areas such as coastal maryland while areas such as kansas or iowa have more extremes in temperature

Which blood cell spend most of their time in the lymphatic system?