Which organism appeared on Earth first?

Differentiate between: 2) Root system and Shoot system

The human population is predicted to continue increasing as the rate of climate change also increases. What technology doesn't address the concerns raised by these trends?

Why do some red blood cells undergo programmed death? They are healthy. The body must balance the blood cell count. Their concentration is too low. There is too much oxygen in the blood.

Why were Victorian hat makers prone to mercury posioning

What type of volcano is mount st. helens

Do you think viruses are living organisms? Explain your answers. Anyone that answers I will mark as brilliant

By dividing twice, the original parent diploid cell is able to produce 4 haploid gametes. true or false

What happens to the products of respiration

If a pollutant that kills bacteria enters the pond what will be a possible impact on other organisms in the food web

If you could breed all dogs together what would it look like?