Biology Quiz 8

Terminator seeds, also called suicide seeds, contain genetically engineered properties to prevent multiplication. It is a seed that is genetically modified so that any crops grown from it do not produce fertile seeds. Because the crops produce sterile seeds, farmers need to buy a new batch of seeds every year rather than using the traditional farming method of saving, reusing and sharing seeds.

Coriander is an annual herb. Its Fresh leaves and dried seeds are most commonly used as food.

Oral contraceptives (birth control pills) are used to prevent pregnancy. Estrogen and progesterone are two female sex hormones. Combinations of estrogen and progesterone work by preventing ovulation (the release of eggs from the ovaries).

The human skeleton of an adult consists of around 206 bones. There are typically around 270 bones in human infants, which fuse to become 206 to 213 bones in the human adult.

Locked jaw disorder is the other name of the disease Tetanus. It is a serious bacterial infection which affects the muscles and the nervous system throughout the body. This infection often affects the muscles of the neck and jaw, but eventually spreads to the rest of the body.

The average heartbeat rate per minute in a normal person is 72. A normal resting heart rate for adults ranges from 60 to 100 beats per minute. Generally, a lower heart rate at rest implies more efficient heart function and better cardiovascular fitness.

Saliva contains a special enzyme called amylase that helps digest the starches in food. Amylase breaks down starches (complex carbohydrates) into sugars, which the body can more easily absorb. Saliva also contains an enzyme called lingual lipase, which breaks down fats.

A typical heart has four chambers (two upper and two lower). The upper chambers, the right and left atria, receive incoming blood. The lower chambers, the more muscular right and left ventricles, pump blood out of the heart. The heart valves are gates at the chamber openings.

Compared with other types of grains, whole grains are better sources of fiber and other important nutrients, such as vitamin B, iron, folate, selenium, potassium and magnesium.

An enzyme-linked immunosorbent assay, also called ELISA or EIA, is a test that detects and measures antibodies in your blood.