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Biology
Belinda Hendricks
Which is true about autotrophs?
a. They are primary producers
b. They make their own food.
c. They are the base of the food chain.
d. All of the choices are true.
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Biology
Alanna Parker
In the therapeutic use of heparin, the blood clotting time is usually maintained at what rate of the normal clotting rate?
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Biology
Kadence Fletcher
The plasma membrane not only provides a protective boundary for the cell but also determines which substances enter or exit the cell. We call this characteristic:
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Biology
Micah Fields
The water molecule h2o is polar because it contains two polar single bonds and
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Biology
Ellis Ferrell
What is the purpose of ATP molecules in plant and animal cells?
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Biology
Wallace
Which one of the following is a major difference between the circulatory systems of earthworms and fish?
a. Fish have a single central heart; earthworms have several hearts.
b. Earthworms have a single central heart; fish have several hearts.
c. Fish have five pairs of auxiliary hearts; earthworms have one pair of auxiliary hearts.
d. Earthworms have five pairs of auxiliary hearts; fish have one pair of auxiliary hearts.
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Biology
Elsie Valenzuela
List each step of the scientific method along with a brief description of what happens during the step. Then briefly explain why scientist use the scientific method
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Biology
Alejandro Strong
A chromosomal mutation in which a segment is missing is called a deletion. True or false?
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Biology
Blackjack
The ___ is the main organ of the circulatory system.
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Biology
Kristina Harrington
What are the two main environmental conditions that can affect the ability of an enzyme to function
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Biology
Kelly Gilmore
Write a paragraph describing DNA structure
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Biology
Savion Fry
How many codons are contained in the mrna that is produced by the normal dna in model 1
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Biology
Goon
Arrange the events involved in nuclear fusion in the correct order.
1. The colliding nuclei fuse to form larger helium atoms having two protons and two neutrons.
2. Bare nuclei collide with each other due to massive amounts of heat.
3. The pressure of hydrogen gas increases, and the gas reaches extreme temperatures.
4. Hydrogen atoms shed their electrons.
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Biology
Tobias Johns
In any dihybrid cross where both parents are heterozygous for both traits, what is the phenotypic ratio of the offspring? A) 1:1:1:1
B) 6:3:2:1
C) 9:3:3:1
D) 12:4:3:1
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Biology
Sleeping Beauty
What feature of a disease classifies it as a prion disease?
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