Where is oxygen content in a river or stream likely to be highest?

a.

the source

b.

the mouth

c.

the middle portion

d.

none of the above

What is an ecosystem service that performs the same function as a pesticide?

Where does most of the energy that drives metabolism and most of the cells activities come from (also called a cells "energy currency") ?

How many vacuoles does a plant cell have?

Galaxy that moving away from eart are

In theory the enzymes should work in colder conditions but at a lower rate, why?

Water accounts for 60-90% of the mass of every cell, and it dissolves many substances that are used or produced in cellular chemical reactions. although it does not dissolve all substances, water is sometimes called the universal solvent.

11. Does water have a high or low surface tension? 12. What does all the water on earth make up? 13. What is salinity? 14. Does fresh water have a high or low salinity? 15. What is a river basin? What river basin is Clinton, NC located in? 16.

Spanish influenza is thought to be caused by

Write a sentence with the word distortion including the word map

Plant leaf is an organ that traps light energy to make food. in what way is an animal stomach similar to a plant leaf.