Which of these describes a quantitative observation?

A. an observation of the phenomenon itself

B. an observation of the relative size of something

C. an observation of an effect the phenomenon has

D. an observation that has a number associated with it

Green seed color is recessive in pea plants. During fertilization, a pea plant receives one recessive gene for seed color from a sperm cell. The plant produces green seeds. The gene from the egg cell must have been: -recessive -dominant -cannot tell

Which test is used to determine whether the substance being tested is likely to cause cancer in human?

Temperate continental climate

Which of the following statements is FALSE a. Increased growth hormone in adults causes acromegaly. b. Hyperthyroidism can be treated with Synthroid. c. "Stacking" is using two or more anabolic steroids drugs at the same time. d.

Describe the flow of energy in a food chain (Tree➡Caterpillar➡Bird) ?

Identify two different sex linked traits in humans.

Most of semen volume is composed of sperm. True or False

Otrophic bacteria, where are the enzymes located that can carry on carbon fixation (reduction of carbon dioxide to carbohydrate) ?

The Roman aqueducts were an important advance in public: hygiene housing medical treatment education of disease

A substance that is easily mixed with water?