2. Sound waves going under a door

is an example of sound wave

O diffusion

O diffraction

1. When cities in the Northern Hemisphere are having their coldest temperatures, what is happening in the Southern Hemisphere? 2. The two cities near the equator have nearly the same temperature all year. Is that true for other places? 3.

What did trees evolve from

Which is the chemical equation for cellular respiration, and which statement describes the reaction? carbon dioxide + water ® glucose + oxygen + water Energy is required in the form of light.

Explain why transboundary environmental threats like pollution are a problem for both parties, even if one community is principally responsible for the pollution.

Where are antibodies produced?

Onion cell and elodea cell

Two albino individuals marry and start a family. their first child has normal pigmentation. does this indicate infidelity and why/why not?

Which of these structures is/are NOT properly matched with one of its/their functions? a. pharyngeal tonsil: trap and destroy pathogens entering the nasopharynx in air b. paranasal sinuses: house olfactory receptors c.

Whats a hitchhiking arachnid?

What would mostly likely happen to a unicellular organism if it was exposed to a hypotonic solution for an extended period of time