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Jenna
BiologyBiology
During which phase mitosis do the nuclear membrane nucleolus and dissolve
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Stud
BiologyBiology
Dr. Graham exposes rats to a vanilla scent prior to receiving a food pellet in the left corner of their cage, but provides no food after exposure to a lemon scent. After several trials, upon smelling a vanilla scent, the rats wait at the far left corner of the cage regardless of whether a food pellet is present. However, they do not wait in the far left corner when exposed to the lemon scent. What is the unconditioned stimulus in the experiment?
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Angelique Todd
BiologyBiology
Using a punnet square, cross a heterozygous grey mouse with a white mouse. (Grey is the dominant allele and white is recessive.)

A) what percent of the offspring have grey fur?

B) What percent of offspring have white fur?
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Alana Beltran
BiologyBiology
Put the steps of muscle contraction in order from first (1) to last (5).

The sarcomere shortens.

Calcium ions are released by a nerve cell.

The sarcomere is relaxed.

Actin and myosin overlap completely.

Actin and myosin are activated.
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Bridget Hoffman
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Explain how muscles are affected by space travel
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Akira
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The house fly, Musca domestica, has a haploid chromosome number of 6. How many chromatids should be present in a diploid, somatic, metaphase cell?
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Lena Joyce
BiologyBiology
True or false: A substance will float in water if it has a mass greater than its volume
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Angelina
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What does dna look like to the naked eye
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Saige Gilbert
BiologyBiology
Question 20

Loops of bacterial DNA that scientists use to make recombined DNA are called plasmids.

True

False
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Kayla Padilla
BiologyBiology
Farming in north america in the next 50 years will likely result in a. shorter growing seasons. b. less predictability in the weather. c. generally more precipitation. d. generally less precipitation.
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Georgia Sheppard
BiologyBiology
Molecules that are eaten but not absorbed by the animal leave the animal's body in and are
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Patience Tran
BiologyBiology
Which of the following structures are found in gymnosperms but not in angiosperms? A. Pollen B. Seeds C. Cones D. Flowers
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Julien Alvarez
BiologyBiology
The nurse is beginning the physical exam of a male client's genitals. The nurse is sitting on a stool in front of the client. In which position would be best to place the client?
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Foxy Lady
BiologyBiology
Which of the following occurs during the second trimester of pregnancy?
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Marina Macdonald
BiologyBiology
A water shed is:

The materials that are transported and carried by a river.

the area of land that is drained by a river system.

a body of rock or sediment that stores groundwater and allows it to flow.

a network of streams and rivers that drain an area of its runoff.
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