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Biology

Evie Green

The chart shows the percentage of different elements in the human body. Which element is the most prevalent in the human body?

(A) nitrogen

(B) hydrogen

(C) carbon

(D) oxygen

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Biology

Madalynn Rowe

According to the endosymbiosis theory, scientists believe that early eukaryotes formed from prokaryotes. Why do scientists believe that prokaryotes existed earlier than eukaryotes? All prokaryotes are aquatic in nature. All prokaryotes perform photosynthesis. Prokaryotes have organelles, while eukaryotes do not. Certain eukaryote cell structures resemble prokaryotes. NextReset

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Biology

Aiyana Wise

Why would damage to the nervous tissue in the spinal cord lead to paralysis? Damage results in the loss of signals to muscles to produce movement. Damage results in the inability of the body to differentiate between voluntary and involuntary movement. Damage results in the inability of the body to produce connective tissue to support movement. Damage results in the decreased production of actin and myosin for contraction.

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Biology

Giuliana

Complementary base pairing in DNA means that DNA is easy to copy. How does this work?

A. DNA isn't very easy to copy, but there's no need to do that, so it doesn't matter.

B. The base pairs that make up the center of the DNA molecule will only match with identical copies of themselves A:A, C:C, etc.

C. The base pairs that make up the center of the DNA molecule will only match up A with T or C with G.

D. It doesn't work very well, so many mistakes are made when DNA gets copied as cells divide.

E. The base pairs that make up the center of the DNA molecule match other DNA molecules perfectly.

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Biology

Janetta

Explain why the tip of the onion root is an ideal place to find actively dividing cells in large proportions.

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Biology

Tyree Anthony

Infants born to mothers who experienced an unusual amount of stress during pregnancy tend to have

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Biology

Guest

If you fart in a freezer does it get in the food

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Biology

Jaslene Mason

Australia has invest in capital goods by giving employees a chance to learn new skills true or false

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Biology

Nikhil

A small mass of tissue that is made up of Purkinje fibers, ganglion cells, and nerve fibers, that is embedded in the musculature of the right atrium, and that originates the impulses stimulating the heartbeat called as?

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Biology

Guest

Why is it possible to get the flu during the flu season when you have already been vaccinated for influenza?

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Biology

Lloyd

What is the major function of meiosis? To produce ...

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Biology

Noelle Bradshaw

Skeletal structures are common between two animals of different species

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Biology

Eric Villegas

What were characteristics of the Roman empire at its height there are more than 1 answer

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Biology

Guest

What would happen to photosynthesis if the plant was deprived of Co2?

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Biology

Aydan Oliver

Some prokaryotes are able to survive unfavorable conditions by forming?

A. flagella

B. capsids

C. cocci

D. endospores

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