Mangroves are trees that grow on the coasts of many tropical countries. Mangroves grow in mud.
The mud is low in oxygen and nutrients.
Mangroves absorb water from sea water (salt water).
Most plants cannot absorb water from sea water.
Mangroves have high levels of salts in their roots.
Suggest why.

Which table best shows the impacts resulting from human activity? impact of human activities human activity impact forest area cleared to construct an airport increase in oxygen level vegetation cleared to construct an oil mine increase in pollution impact of human activities human activity impact forest area cleared to construct an airport increase in sound pollution vegetation cleared to construct a power plant contamination of water impact of human activities human activity impact beehives cleared from urban areas increase in vegetation dams constructed on a river increase in fish population impact of human activities human activity impact beehives cleared from urban areas increase in bird population dams constructed on a river better quality of water

What are the fixed alleles in the human species? o a. the alleles that are on the most chromosomes b. the alleles that change most often 000 c. the alleles that no one has d. the alleles that everyone has

What’s the student’s scientific question