Oxygen has six electrons in its outer shell. As a result, oxygen can form up to how many bonds with other elements

What causes a plant to wilt? the cells die. the cells lose turgor pressure. the cells run out of sugar. the cells lose salt?

During vomiting the food moves in the opposite side. Why?

Why is homeostasis essential for living things?

Which of the following is NOT a reason that scientists classify organisms? A to organize organisms B to easily identify organisms C to determine the age of organisms D to ensure the use of a common language

The energy pyramid shows the flow of energy through a temperate forest ecosystem. Which trophic level has approximately 100 times more energy than the apex consumer level? A. Apex Consumers B. Tertiary Consumers C. Secondary Consumers D.

Which of the following about Dalton's theory of matter is true? A Atoms of the same element have the same mass. B Compounds formed from two elements will not always have the same proportions. C Atoms cannot be divided into smaller parts.

What would cause a particular polygenic trait, like tall stature in humans, to become more frequent in a population over time?

How do trees that produce seedless oranges are grown

Immunoglobulins are produced by which leukocyte? A. Monocytes B. B lymphocytes C. T lymphocytes D. Plasma cells

In the ecological pyramid, organism A represents a