1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lesya [120]
3 years ago
14

What structures in the small intestine are lined with capillaries that absorb nutrients?

Biology
1 answer:
Mandarinka [93]3 years ago
5 0
Answer:
            
            "Absorption is the process in which digested food molecules move from                the wall of samll intestine into blood or lymph"

Explanation:

                     Small intestine is composed of three main regions:

1. Duodenum:

                    It is the first part of samll intestine where acidic chyme from stomach enter and become alkaline due to mixing with bile and pancreatic juice. Chemical digestion of carbohydrate, protein and fats is completed here.

2. Jejunum:

                Jejunum is the site where about 90% of absorption of digested food takes place. It is lined with small hair like projection called villi and micro-villi. these villi are lined with blood vessels  (capillaries as shown in the figure) and lymph. After absorption of small peptides, amino acids, glucose and fructose, they reach to blood capillaries inside villi and micro villi. From here digested food particles are transported to liver and other parts where they are needed. 

3. Ileum:
             
          It is the last and longest part of small intestine about 12 feet long. <span>ileum contains receptors for absorption of vitamin B12 and bile salts.</span>

You might be interested in
Which characteristic is used to divide aquatic biomes into three zones?
RoseWind [281]
The answer is Light exposure 
3 0
3 years ago
What is extracellular matrix ? in simple words pls​
gregori [183]
A three-dimensional network consisting of extracellular macromolecules and minerals, such as collagen, enzymes, glycoproteins and hydroxyapatite that provide structural and biochemical support to surrounding cells.
5 0
3 years ago
A depression in the ground due to a cave collapse or acidic water dissolution of limestone is called a
SpyIntel [72]
This would be called a D. Sinkhole. Sinkholes occur because groundwater washes and deteriorates at limestone under the surface. This leads to underground gaps. Once the pressure becomes high enough, the sinkhole collapse from gravity leaving a dent similar to potholes in the road.
7 0
3 years ago
Consider two very distantly related species, Species A and Species B. These species live in distinct but similar environments an
never [62]

Answer:

convergent evolution

Explanation:

If we have two species that share a similar trait or look alike a lot, but they live in places isolated from each other, and they only have a very distant relation, then it is a case of convergent evolution. This type of evolution occurs with species that are not closely related, but they live in environments where having the same or very similar traits is advantageous. This can often lead to a confusion when looking at the species only on the outside, and it can be very misleading. As an example we can take the sabretoothed predators that existed in the past. Both the smiloden and the thylacosmilus had large saber like teeth, and even their bodies looked very similar, so one would assume that they are closely related, but that was not the case. The smilodon was part of the cat family, while the thylacosmilus was a marsupial, making them very distantly related. They developed same same and some very similar traits because their environment created the evolutionary pressure for those traits to develop as they were advantageous, despite them evolving in totally different places and separately.

8 0
2 years ago
Which process works by applying pressurized water against a semi-permeable membrane that traps salts and other minerals?
Natali5045456 [20]

Answer:

Reverse Osmosis.

Explanation:

This is the mechanisms of water purification for drinking water which is droven by the chenical potential of the solvent .

It involves the use of partiaiy permeable membrane to allow ions , water molecules ,solvent molecules to pass through during purification

A pertial permiable menenrane in this prurifiction process is the membrane that allow only water molecules, ions and restricted other unwanted chemical contaminants from passing through it.

5 0
3 years ago
Other questions:
  • Which substance is an inorganic molecule?<br> A) starch B) DNA C) water D) fat
    11·2 answers
  • PEASE HELP!!!!! the cells in your nose that detect smell are a type of? A. chemoreceptor B. propipceptor C. efferent receptor D.
    14·1 answer
  • One result of x-linkage is a crisscross pattern of inheritance in which sons express recessive genes of their fathers and daught
    15·1 answer
  • Is a T cell a white blood cell
    11·2 answers
  • Please help me asap really need help thank you
    6·1 answer
  • What Are Some Reasons that explain why viruses evolve so fast
    14·1 answer
  • What device converts the various forms of energy into electrical energy?
    11·1 answer
  • An organism's "fitness" (in terms of natural selection and evolution) is determined by:
    5·1 answer
  • Need the answer asap!!
    9·1 answer
  • Which of these 3 systems work together to get the body the oxygen and sugar that it needs to make ATP(energy)?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!