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aleksklad [387]
2 years ago
6

Both osmosis and diffusion require energy and are considered active transport.

Biology
2 answers:
My name is Ann [436]2 years ago
3 0
First one is true so yes
Tanzania [10]2 years ago
3 0
First 1 true
Second 1 true .
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For fertilization to occur in humans, only one sperm is needed to weaken the barrier that surrounds the egg.
photoshop1234 [79]

Answer:

False

Explanation:

Approximately 200 out of 200 million sperms ejaculated during intercourse reach the general vicinity of the egg.  They sperms must undergo capacitation during which dilute inhibitory factors fluids of the female reproductive tract weaken the membrane of the sperm head so that head of the sperm can be broken easily when it came in contact with the egg.

The first sperm to reach an egg isn’t the one to fertilize it because the egg is surrounded by a gelatinous membrane called the zona pellucida. Outside this layer, a layer of small granulosa cells also present.

Therefore, it requires numerous sperm to clear a path through these barriers before one of them can penetrate the egg and fertilize it.

8 0
3 years ago
_____ are lipids that store energy and are typically composed of multiple building blocks containing three fatty acids attached
marta [7]

Answer:

Fats are lipids that store energy and are typically composed of multiple building blocks containing three fatty acids attached to a glycerol molecule.

Explanation:

Fats, because they are a group of natural molecules that includes fats, waxes, sterols, and fat soluble vitamins.  

5 0
2 years ago
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Suppose that RNA polymerase was transcribing a eukaryotic gene with several introns all contained within the coding region. In w
Elenna [48]

Answer: synthesize a pre-rRNA 45S (35S in yeast), which matures and will form the major RNA sections of the ribosome. RNA polymerase II synthesizes precursors of mRNAs and most snRNA and microRNAs. RNA polymerase III synthesizes tRNAs, rRNA 5S and other small RNAs found in the nucleus and cytosol.

Explanation:

3 0
3 years ago
Which of the inner transition metals is critical to the nuclear power industry.
Rom4ik [11]

Answer:

<u>Uranium</u> is the  inner transition metals is critical to the nuclear power industry.

Explanation:

Uranium is a common transition metal found in rocks and is used for nuclear fission reactions. In a nuclear fission reaction, a neutron atom is hit on a uranium atom. As a result, the uranium atoms breaks down releasing huge amounts of energy. Also, more neutrons are released by the breakdown and hence the this neutron hits other uranium atoms and the cycle continues. The most active radioisotope of uranium being used in nuclear fission reactions is U-235.

8 0
3 years ago
Identify which kingdoms within Eukarya are known as decomposers, and which are capable of photosynthesis
Serggg [28]

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1.Fungi           2.plantae

Explanation:

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