Gen Bio Unit 1 Stem 11

These are the basic building blocks of all living things.

• Atoms
• Molecules
• Tissues
• Cells

The human body is composed of _______ of cells.

• trillions
• thousands
• millions
• billions

Cells cannot make copies of themselves.

• True

• False

It is an ability for an organism to keep a constant internal state.

• Homeostasis
• Homostasis

• Homestasis

• Homoestasis

Which of these are general functions of the cell? (MULTIPLE ANSWERS)

• Regulation of the Internal Environment

• Acquisition and Utilization of Energy

• Responsiveness to their environment

• Protection and Support

• Gives you super powers

They impart protection against pathogens and other foreign bodies that may enter the general circulation.

• Immune cells

• Digestive Cells

• Circulatory Cells

• Nervous Cells

It means more pigment is released in an area to impart protection to the underlying cells especially UV radiation that can damage DNA.

• Hairy Skin

• Dry Skin

• Sweaty Skin

• Tanned Skin

They are believed to have created a simple compound microscope using a tube with lenses at each end.

• Galileo Galilei

• Isaac Newton

• Zacharias Janssen

• Hans Janssen

• Nikola Tesla

He observed cork cells under a microscope.

Hans and Zacharias Janssen are....

• American

• Dutch

• Canadian

• Filipino