CIENCIAS

which planet is named after the Greek god who personified the sky?

• earth

• mars

• pluton

• Uranus

An animal that eats only meat is called an)

• (A) omnivore.

• (B) herbivore.

• (C) carnivore.

• (D) voracious.

The chemical process in which electrons are removed from a molecule is called

• (A) respiration.

• (B) recreation.

• (C) oxidation.

• (D) metabolism.

The intestines are part of the

• (A) circulatory system.

• (B) nervous system.

• (C) respiratory system.

• (D) digestive system.

Joints that hold bones firmly together are called

• (A) hinge joints.

• (B) ball and socket joints.

• (C) fixed joints.

• (D) pivot joints.

Of the levels listed, the top or broadest level of the classification system for living organisms is called the

• (A) class.

• (B) phylum.

• (C) kingdom.

• (D) genus.

What is a single unit of quanta called?

• (A) quantum

• (B) quantumonium

• (C) quantus

• (D) quanfactorial

Light waves travel at a rate of about

• (A) 186,000 miles per hour.

• (B) 186,000 miles per minute.

• (C) 18,600 miles per hour.

• (D) 186,000 miles per second.

10. Which planet is the brightest object in the sky, aside from the sun and moon?

• (A) Saturn

• (B) Pluto

• (C) Venus

• (D) Mercury

The human heart includes

• (A) 2 chambers.

• (B) 4 chambers.

• (C) 3 chambers.

• (D) 5 chambers.