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Schach [20]
3 years ago
9

After the esophagus which comes next in the alimentary canal

Biology
2 answers:
daser333 [38]3 years ago
6 0

The Stomach does. Apex

(Mark me brainliest please)

mina [271]3 years ago
4 0
The food bolus will then get digested in the stomach.

Specifically, only protein is chemically digested into short polypeptides under the enzyme pepsin. The gastric juice that contains pepsin is produced by the gastric glands. The stomach is very acidic. It has a pH value of around 2. This is because it has to make sure that only pepsin is functional and so as because hydrochloric acid is present. 

Polypeptides are not yet the final form of protein, amino acids are. But the process of breaking down polypeptides into amino acid is yet to be done at this stage, so as the other digestion of e.g. carbohydrates or fat. They'll mostly be done in the duodenum, which is the next stage after the stomach. 
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Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp m
kodGreya [7K]

Answer:

A mutation in Ras protein which will cause hyperactivity will eventually lead to cancer.

Explanation:

Ras protein was first discovered in Rous sarcoma virus (RSV) and it is a proto-oncogene product. In normal conditions, it plays an important role in cellular signalling but in case of gain of function/hyperactivity it gets converted into cellular oncogene. In several types of cancers a point mutation has been reported in Ras protein.

Just like G protein, it is also a GTPase switch protein but unlike G protein which is trimeric, it is monomeric. In the plasma membrane, it is attached with the help of lipids like prenyl or palmitoyl groups. During signal transduction pathway when it gets activated, it downstream activates MAPK pathway and causes gene expression but when it gets hyperactivated it causes over expression of genes leading to cancer.

4 0
3 years ago
Put these statements in correct order to understand how hearing works. - Ions enter hair cells - Stapes moves - auditory cortex
OLEGan [10]

Answer: From the question,the correct order of how hearing works is listed below:

--> sound wave is generated from hitting a key on a piano,

--> Incus moves,

--> Stapes moves,

--> Sound wave enters inner ear,

--> Fluid in the cochlea moves,

--> Fluid wave moves across Organ of corti based on frequency,

--> Ions enter hair cells,

--> hair cells bend,

--> auditory nerve transmits the signal to the auditory cortex,

--> auditory cortex recognizes the sounds.

Explanation:

In mammal, two ears are present on each side of the head. It is know as the organ for hearing and balance. The ear is divided into three regions:

--> OUTER EAR: This consists of pinna, ear canal, and eardrum( tympanic membrane)

--> MIDDLE EAR: This consists of the ear ossicles ( malleus, incus and stapes).

--> INNER EAR: This consists of Cochlea (organ of hearing) and semicircular canals (for balance).

To explain further on how we hear sounds, the vibrations of sounds produced from an external source move from the outer ear to the middle and then to the inner ear where the cochlea, the organ for hearing is located.

As sound wave is generated from hitting a key on a piano, the pinna collects the sound waves and directs them into the ear canal. Sound waves impinge on the tympanic membrane and makes it vibrate. This causes the malleus, incus and stapes (in this order) to move to-and -fro at the middle ear region.

In the inner ear region, sound wave enters inner ear as stapes pushes the oval window in-and-out. The vibrating oval window causes the fluid in the cochlea( perilymph) to move to-and -fro. Fluid wave moves across Organ of corti based on frequency. The pressure waves in the perilymph push the membrane separating the upper canal and the cochlear duct to-and-fro allowing ions to enter the hair cells. As a result, the hairs of the sensory cells between these two membranes bend causing nerve impulses to be sent to the brain through the cochlear part of the auditory nerve. Auditory nerve transmits the signal to the auditory cortex which recognizes the sounds.

8 0
2 years ago
The evolutionary theory that suggests that a species can suddenly and rapidly evolve into a new species is ?
Mekhanik [1.2K]

<span>Punctuated Equilibrium/ Equilibria proposes that once species appear in the fossil record, the population  will be in the state of little or absent morphologic change. This is called a state of stasis. The theory further proposes that the population is confined to infrequent and geographical rapid events when significant evolutionary change happens.  The parent species will the split into two distinct species. This process if called cladogenesis.</span>

6 0
3 years ago
Which of the following is typically associated with a large amount of organic material in a water supply? Lower turbidity Higher
frez [133]
Higher phosphates is typically associated with a large amount of organic material in a water supply. A large amount of organic material implies rapid growth, so higher phosphates is the only feasible choice. 
6 0
3 years ago
You have to go to the bathroom because you ate too much before the run.
Makovka662 [10]

Answer:

The digestive system

Explanation:

Because the food gets dissolve in the digestive system. After it finished dissolving, the body must elimenate it by using the bathroom.

8 0
2 years ago
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