Grade 7 Review Questions from Mock Exam | Baamboozle - Baamboozle

English 20 Public

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What is the level of organization in living things from MOST complex to simplest?

Organ system -> Organ -> Tissue -> Cell

Name two cell structures that are found in PLANT cells but NOT in animal cells?

Cell wall, chloroplast

Which microorganisms released oxygen on Earth billions of years ago?

Cyanobacteria

What do you call the union or joining of egg and sperm cells?

fertilization

What is the auditory range for humans? Give the range of acoustic sounds in Hertz.

20 to 20,000 Hertz

Sound travels as what type of wave?

Longitudinal

In which medium do sound waves travel fastest, and why?

Solid because particles in solid are more packed together.

TRUE or FALSE. According to cell theory, living things arise spontaneously from non-living things.

FALSE

What color appears when an object REFLECTS all visible light?

White

What color appears when an object ABSORBS all visible light?

black

Which electromagnetic wave can kill cancer cells?

gamma

What does LOW FREQUENCY indicate about the sound?

low pitch

What do you call a microorganism with round shape and in chains?

Steptococci

The microorganism the causes typhoid fever is an example of a _________.

bacteria

TRUE or FALSE. Bacteria have nucleus.

FALSE. Bacteria are prokaryotic cells. They have no nucleus.

Which cell structure is involved in building protein?

Ribosome