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wlad13 [49]
3 years ago
15

How much mass does a fetus gain from 0 to 8 weeks of development?

Biology
2 answers:
KengaRu [80]3 years ago
7 0

Answer:

The answer is that the fetus does not gain mass from week zero until the eighth week. The fetus begins to gain mass from the tenth week, with an approximate weight of 5 grams and an approximate size of 3.4 centimeters.

Explanation:

Ultrasound scans are used to report the size and approximate weight of the baby. The size of the fetus increases in a linear way, more or less similar size every week, the weight does so exponentially, that is, it increases in weight during the first months and gains most in the last third of pregnancy.

SpyIntel [72]3 years ago
3 0
Like an ounce or two
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madreJ [45]

Answer:

B.Active transport, because energy is being used to move molecules against the concentration gradient

Explanation:

Substances move in and out of living cells through various transport means. Some substances move passively (without energy) while others move actively (with energy). Active transport of substances involves the movement of molecules against the concentration gradient.

Active transport moves against concentration gradient in the sense that the movement occurs from a region which is less concentrated to one which is more concentrated, hence, energy input in form of ATP is required for such transport to occur. This is the case of the cellular transport in the diagram. Therefore, it is an ACTIVE TRANSPORT because energy input (ATP) is required.

Note, Osmosis and facilitated diffusion are types of passive transport that requires no energy to occur.

7 0
3 years ago
Which three statements about electromagnetic radiation are true?
TEA [102]
Light is a form of EM radiation.
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Hope this helps!
6 0
3 years ago
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They formed from a cloud of dust and gas.

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A nebula is where the formation of stars takes place, so the Nebula Theory would pertain to the planets forming in the same way.

4 0
3 years ago
How do the two alleles of the cftr gene in a lung cell differ?
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A missense mutation causes premature chain (protein) termination. A missense mutation causes premature chain (protein) terminati
timurjin [86]

Answer: The statement is false

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3 years ago
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