Which of these is a basic need of all organisms, choose only one

- Soil

- Oxygen

- Food

- Sunlight

How are the density and temperature of air related?

What direction does wind travel in the Northern Hemisphere?

When does the cell have to use active transport? a. when the cell has low energy b. when the cell is in a highly concentrated solution c. to move molecules across the membrane quickly d. to move molecules across the membrane against a gradient

A segment of dna shows bases in this bases in this order AGT CAC GCA complete the corresponding Dna strand; TCA GTG

Mitosis is most similar to: a. metaphase 1 b. meiosis 2 c. meiosis 1 d. all of meiosis

The seeds in a pine tree are borne in the: stigma ovulate cone microsporangiate cone microsporangium

What causes remodeling, or pruning, during middle childhood? how is this process different in each individual child?

What is the outermost structure that surrounds and supports plant and fungal cells?]

The sun is A. luminous; it gives off its own light. B. illuminated; it gives off its own light. C. luminous; it reflects light.

An increase in a herbivore populations in an ecosystem will soon lead to