After eating, what specific part of the nervous system controls the digestion of the

Biology

1 answer:

gulaghasi [49]3 years ago

6 0

Answer:

Once you begin swallowing, the process becomes automatic. Your brain signals the muscles of the esophagus and peristalsis begins. Lower esophageal sphincter. When food reaches the end of your esophagus, a ringlike muscle—called the lower esophageal sphincter —relaxes and lets food pass into your stomach.

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Which observation about the Rocky Mountains and the Appalachian Mountains would support the claim that exposure of weathering an

Ostrovityanka [42]

Answer:

B: The shorter and more rounded the Appalachian Mountains are more than four times older than the taller and more jagged Rocky Mountains

Explanation:

The Appalachian mountains form a system of mountains in eastern North America and are older than rocky mountains as they were formed 480 million years ago and are similar to those of the alps. They form a barrier to the east to the west.

They extend to southeast Canada and form zones of 300 miles wide. They form the mountain ranges surrounding hills and the dissected plateaus forming at an elevation of 6,684 meters from the sea level. <u>Whereas the rocky mountains are younger and have an elevation of 4,401 meters.</u>

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3 years ago

Choose the correct statements 1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same f

Mamont248 [21]

Answer: The correct statements are 1 and 2:

1.Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.

2.Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

Explanation:

Pollination is the transfer of pollen grains from an anthers to a receptive stigma. In most species of flowering plants, external agents bring about pollination. Also, flowers have evolved special structures and mechanisms to ensure successful pollination.

There are two types of pollination

--> Self pollination: This takes place when mature pollen grains from the anther of a flower fall on the stigma of the same flower or that of another flower on the same plant. This type of pollination brings the male gametes and egg cells of the same plant together. The resultant offspring show very little genetic variation.

--> Cross pollination: This occurs when mature pollen grains of a flower are transferred to the stigma of a flower of another plant of the same or closely related species. This brings the male gametes and egg cells of two different parent plants together. Therefore, there is greater genetic variation among the offspring.

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3 years ago

A scientist observes that a certain trait is determined by a single gene.

tangare [24]

Answer:

Codominance

Explanation:

Codominance occurs when both alleles participation in the expression of the genotype of an offspring, such as a flower with patches of different colours, each coming from a different allele.

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3 years ago

As organisms grow do our cells increase in size or do they increase the numbers

Inessa05 [86]

They always increase in numbers

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3 years ago

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Scientists working in the fields of both genetics and archaeology have made discoveries that help us understand the origin of ma

Damm [24]

I think the answer in this is c because it shows how the scientist worked in feilds

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3 years ago