Explanation

• Animal cells do not have chloroplasts, as they are not capable of photosynthesis.
• Animal cells also do not have a cell wall, unlike plant cells and some other organisms.

The components of an animal cell:

• Cell Membrane
• Cytoplasm
• Small Vacuole
• Nucleus
• Chromosomes

Explanation

• Cat and Dog is a secondary consumer.
• Because it eats primary consumers (herbivores).
• Like mice, birds, and rabbits.

Explanation

• An element is a substance that consists of only one type of atom and cannot be further split up into simpler substances by chemical reactions.
• Examples: hydrogen (H), carbon (C), oxygen (O), and iron (Fe).

Explanation

Unsaturated Solution: A solution that can dissolve more solute at a given temperature.

Saturated Solution: A solution that contains the maximum amount of solute that can dissolve at a specific temperature.

Explanation

Explanation

The stratospheric ozone layer is Earth's “sunscreen”  protecting living things from too much ultraviolet radiation from the sun.

Oxygen layer in the atmosphere

Ozone protects us from the harmful ultraviolet radiation of the sun.

Ozone formula: O3

The ozone layer lies approximately 15-40 kilometers (10-25 miles) above the Earth's surface, in the stratosphere.

The ozone layer is depleting: Air pollution

Explanation

• Oxygen is a byproduct of photosynthesis.
• It not a factor that affects the process.

Explanation

The National Aeronautics and Space Administration is an independent agency of the U.S. federal government

NASA is responsible for the civil space program, aeronautics research, and space research.

NASA stands for National Aeronautics and Space Administration

NASA Headquarters: Washington

NASA Founder: Dwight D. Eisenhower

NASA Founded: July 29, 1958

Explanation

• A plane mirror produces a virtual image, meaning it's not a real image that can be projected onto a screen.
• The image is also upright, meaning it's not inverted or flipped.

Explanation