When the body becomes dehydrated, a chemical signal is sent that causes nephrons in the kidneys to absorb more water and excrete more salts. this is an example of a

Which food could be transported in a galvanized metal container?

Explain what is meant by a river’s load, and describe how the load is carried.

Which of the following is the smallest unit that would contain a complete copy of the entire human genome? a) one human somatic cell b) one human chromosome c) all of the dna of one human d) one human gene