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Mrac [35]
3 years ago
12

What happens when the muscles in the stomach wall relax and contract?

Biology
2 answers:
Ksivusya [100]3 years ago
7 0
It’s the 2nd one! where the food is mixed with gastric juice
Norma-Jean [14]3 years ago
5 0

Answer:

the answer is the second option you gave

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The reduced coenzymes generated by the citric acid cycle donate electrons in a series of reactions called the electron transport
natka813 [3]

Answer:

The answer of ist question FADH2,NADH 2nd question O2  3rd question NAD+,FAD,H2O,ATP.

Explanation:

Ist answer

During electron transport chain electrons are donated by reduced coenzymes such as NADH and FADH2.

2nd answer

During electron transport chain oxygen or O2 act as terminal electron acceptor which accepts and then undergo reduction to generate H2O.

3rd answer

The final products of electron transport chain and oxidative phosphorylation are NAD+, FAD,H2O and ATP.

4 0
3 years ago
Which nutritional component would a newborn be unable to digest?
irga5000 [103]
Solid milk and solid food
7 0
3 years ago
rabbits can have curly ears or long ears. a homozygous curly-eared rabbit mated with a homozygous long-eared rabbit. all the bab
charle [14.2K]
Long ears have to be dominant:

If this IS true then these would be your 'parents':

L = long ears
l = curly ears

LL x ll

If you cross the homozygous recessive curly eared rabbit (ll) with homozygous dominant long eared rabbit (LL) you would get 100% Ll - all would look long eared.
3 0
3 years ago
What is the expected percent change in the DNA content of a typical eukaryotic cell as it progresses through the cell cycle from
Anastasy [175]

The question is incomplete. The complete question is:

Question: What is the expected percent change in the DNA content of a typical eukaryotic cell as it progresses through the cell cycle from the start of the G1 phase to the end of the G2 phase

a. -100%

b. -50%

c. +50%

d. +100%

Answer:

d. +100%

Explanation:

S phase comes between G1 and G2 phases of the interphase of a cell cycle. S phase of interphase includes replication of DNA. The process of DNA replication doubles the amount of DNA present in the cell. The newly synthesized DNA is accommodated in the sister chromatids of chromosomes. Therefore, a cell with 2C DNA in the G1 phase would have 4C DNA at the end of the G2 phase. So, there is a +100% increase in the DNA content of a cell as it proceeds from G1 to the end of the G2 phase.

7 0
3 years ago
Which evolutionary mechanism caused the increase in dark-colored Biston betularia moths in England in the 1800s? genetic drift n
SashulF [63]

Answer:

Natural Selection is an evolutionary process that caused the increment of dark-coloured Biston betularia moths in England. It happened due to increase of air pollution in the industries. The bark of the trees became darker because of the deposition of pollutants.

In order to save itself from predators, the species of Biston betularia evolved itself to a dark coloured species so that the predators gets confused between the bark of the tree and the Biston betularia.

3 0
3 years ago
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