What are grana composed of

How have humans affected the environment?

What are 3 ways in which non-living parts of the ecosystem can be damaged?

Why do biologists say that living things are organized?

The school book fair has 72 non-fiction books and 328 fiction books for sale. What percent of the book fair is non-fiction books.

An object was measured by a worker as 27.0cm long, however, the manufacturer specifications list the length of the object at 27.7cm. What is the percent error in the workers measurement?

Homeostasis is maintained in the body through negative feedback mechanisms. true or false

In animals such as hydra and corals, new individuals arise as buds on the body of an existing animal. this is budding, a form of

What is the purpose of the carbon cycle?

Which best describes the nucleus of an atom? a. it is where the electrons and protons are located. b. it is the negatively charged part of the atomC. it is the part f the atom with the greatest massD.

Oil-rich countries in the Middle East cover about 4% of Earth's total land area but possess about 48% of the world's known oil reserves.