What is the name given to any object or change in the environment that affects the external or internal state of an organism?

9. Do you know of any activity which may be polluting this water source? What is the major source of fresh water in the city/town/village where you live? 10. How is Soil formed? What is Soil Erosion?

How many parent cells take part in budding?

Explain the importance of ATP at cellular level

A birds newly grown feathers are called?

Tamara's muscle weakness and fatigue becomes progressively worse over the course of the day. This is a hallmark sign of myasthenia gravis, an autoimmune disorder that affects the ability of a motor neuron to communicate with a muscle fiber.

Which statement does NOT correctly describe our sun? A. Our sun is an average sized star B. Our sun is a very old star C. Our sun has an average brightness D. Our sun is yellow-white

One scientist discovered a new theory on the evolution of stars. Why is it necessary for scientists all over the world to agree with the theory before it can be accepted?

Which u. s. states are most likely to oppose strict permit requirements under the Clean Air Act

In a text area below compare and contrast a cell membrane and a cell wall

Which is an advantage of sexual reproduction? a. two parents are required. b. only one parent is required. c. it leads to genetically diverse offspring. d. it leads to genetically identical offspring.