Answer:
Iron from the sand.
Explanation:
Since some types of ocean life, (plankton, algae, etc.) do sometimes not get enough iron, (nutrient) in their bodies, sand is needed for their survival. Sand has lots of iron for the animals' health, so sand is vital for their health and survival.
Glucose to ATP is the answer.
Answer:
i think is D water pollution, logging and mining
Answer:
Negative feedback results in the inhibition of an enzyme in a biochemical pathway, reducing the activity of earlier enzymes, and stopping the pathway. Positive feedback results in the activation of more enzymes, thus increasing its production of the product.
Spring equinox
Spring equinox is the point (time) at which the sun crosses the plane of the earth’s equator and shines directly at it to make night and day almost the same length. Spring equinox occur during the first time of the year while the second equinox (Autumnal or Fall equinox) occur after it within the year. Spring equinox occur around March 21 in the Northern hemisphere.