Free GED SCIENCE Exam Braindumps
GED Section 3: Science Questions 126–130 (page: 27)

Which conclusion is best supported by the graph?
Exhibit:

Exhibit

The diagram of the upper arm shows the human biceps and triceps muscles, with the biceps labeled "A" and the triceps "B".

Based on the diagram, which movement would cause muscle A (biceps) to contract fully?

Atoms in gases are in constant motion and in constant collision with each other. When atoms of A and B collide, they react to form a product P.


What is the effect of increasing pressure on the gases?

Animal populations are regulated by a variety of natural factors. Five of these factors are:
competition--A struggle among rival organisms results when available resources (for example, food or shelter) are limited.
predation--Many animals pursue and eat other animals as prey. disease--In overcrowded populations, the buildup of waste products contributes to the easy spread of disease.
stress--In some populations, overcrowding can lead to hormonal disorders, which can cause abnormal behavior, thereby limiting the population. natural disaster--The occurrence of storms, floods, and earthquakes can significantly affect a population's size.
During the Middle Ages, the human population of Western Europe was severely reduced by a combination of unsanitary conditions and the abundance of flea- infested rats that spread the plague.
Based on the information provided, which of the following factors was responsible for the population reduction?

Bubbles that form when the cap of a soft-drink bottle is removed are evidence of which of the following?