How can you describe the environment in which an organism lives?

The stratosphere is what layer and why is it called the global sunscreen

The production of Answer enzymes is influenced by changes in the environment (availability of substrate etc)

A sentence for the word alive

Give three reasons why fossil records are incomplete

Which of the following sentences shows a periodic pattern? A. there are two ducks in one pond B. there is meat next to the cheese in the refrigerator C. a boy waits five minutes to talk to his father D.

What does the respiratory system do? a. moves blood around the body b. defends against invaders c. sends hormones to the body d. brings oxygen into the body?

Coals, oils and gas are examples of

Abstaining from alcohol can reverse some abnormalities in the brain in patients with alcohol dementia. a. True b. False

20 pc #2. Explain the difference between the terms "genotype" and "phenotype". Your answer

Over many hundreds of years, a stream bed slowly dries up. If the water supply suddenly reappears in the stream bed, which of these is likely to happen?