Biology » Page 206

Biology

Dillan Winters

An example of an epigenetic change is

Select one:

a. a gram-negative organism releasing lipopolysaccharide from its cell wall upon lysis.

b. a microbe secreting hyaluronidase to break down host hyaluronic acid.

c. Clostridium tetani secreting the exotoxin tetanospasmin.

d. a microbe that can induce changes in host DNA, resulting in suppression of defenses or weakening of individual cells.

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Biology

Tony

What is produced by any parent cell that undergoes mitosis?

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Biology

Sam Orozco

Which term is used to describe the variety of inheritable traits in a species? Ecosystem diversity Genetic diversity Natural selection species diversity

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Biology

Peter Sullivan

Which of the following was probably the least important factor in bringing about the cambrian explosion?

a. the emergence of predator-prey relationships

b. an increase in the concentration of atmospheric oxygen

c. the movement of animals onto land

d. the origin of Hox genes

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Biology

Mallory Bentley

What is an allele?

A. A group of proteins

B. A type of virus

C. A group of chromosomes

D. A form of a gene

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Biology

Alonso Kidd

Cellular respiration in the presence of oxygen is called

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Biology

Ace Foley

What are functions of protein

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Biology

Shaniya Mckenzie

How many consist of human body bones

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Biology

Ryder

Who invented vaccination?

Issac Newton

Robert Hooke

Edward Jenner

Charles Darwin

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Biology

Guest

What is the the difference between dna and rna

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Biology

Zuniga

Volcanic eruptions changes in earths orbit meteorite impact and even the combustion of fossil fuels ALL contribute directly or indirectly to climate change by

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Biology

Karter Rasmussen

A drowned river valley is a (n) ?

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Biology

Guest

What gas is changed by some bacteria into a form that plants can use?

A. carbon dioxide

B. nitrogen

C. oxygen

D. water vapor

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Biology

Kassandra Long

What molecules are the main electron carriers of the Krebs cycle?

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Biology

Guest

Draw a diagram of Nitrogen cycle

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