In a tropical rain forest, the layer found by the leafy tops of tall trees is called the what and the layer of shorter trees and vines is called the what?

Cleo has a vegetable garden and wants to increase the amount of nitrogen soil. how can she most likely do this?

What is a combining form

What is the organ system responsible for taking oxygen from the outside air and supplying it to the blood into the body?

Which can occur in a physical change?

To determine her blood pressure , samantha divides up her day into three parts: morning, afternoon, and evening. she then measures her blood pressure at 2 randomly selected times during each part of the day. what type of sampling is used

Identify the benefits to native species of joining similar habitats with corridors.

4. what is the p-wave shadow zone and what causes it

Speciation generally requires - Select all that apply A) isolation of populations B) genetics of divergence C) geographic isolation

Which example best represents balanced forces? an elevator stopped on the third floor a basketball shot into a hoop a sled sliding down a snowy hill a tow truck pulling a car out of a ditch

What is the dynamic between a lion and a zebra?