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Otrada [13]
3 years ago
9

What is the gastrointestinal system? What does it do?

Biology
1 answer:
umka2103 [35]3 years ago
7 0

Answer:Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine. As food passes through the GI tract, it mixes with digestive juices, causing large molecules of food to break down into smaller molecules.

Explanation:

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A 2-week-old infant who presents with poor feeding, fatigue, dyspnea, and a murmur is diagnosed with a patent ductus arteriosus
IRISSAK [1]

The answer is left to right shunt

Ductus arteriosus is a vessel that connect the pulmonary artery with the aorta. Normally, ductus arteriosus will be closed to prevent backflow. Patent ductus arteriosus happens when it doesn't closed.

Since aorta pressure is higher than pulmonary, left to right shunt will be happens. The blood that flow to the lungs will be increased while blood flow to the systemic decreased.

5 0
3 years ago
What do restriction endonucleases do? what do restriction endonucleases do? they cut dna at specific sites, known as recognition
Nookie1986 [14]
Restriction endonucleases cut DNA at specific sites, known as recognition sites, to produces DNA fragments useful for cloning. Restriction enzymes or restriction endonucleases are DNA cutting enzymes found in bacteria. Each restriction enzyme recognizes one or a few restriction sites. When it finds its target sequence, it makes a double stranded cut in the DNA molecule. 
4 0
3 years ago
Which statement best explains the relationship between producer and consumers in terms of energy?
Tasya [4]

Answer:

C

Explanation:

Consumers can't convert glucose, they don't take in carbon dioxide, and they can't produce Glucose, therefore it has to be C

4 0
3 years ago
Why cycus are called conifer? give its 3major characteristics features​
Licemer1 [7]

Answer:

Cycads /ˈsaɪkædz/ are seed plants that typically have a stout and woody (ligneous) trunk with a crown of large, hard, stiff, evergreen and (usually) pinnate leaves. The species are dioecious, therefore the individual plants of a species are either male or female. Cycads vary in size from having trunks only a few centimeters to several meters tall. They typically grow very slowly[3] and live very long, with some specimens known to be as much as 1,000 years old.[citation needed] Because of their superficial resemblance, they are sometimes mistaken for palms or ferns, but they are not closely related to either group.

Cycads are gymnosperms (naked seeded), meaning their unfertilized seeds are open to the air to be directly fertilized by pollination, as contrasted with angiosperms, which have enclosed seeds with more complex fertilization arrangements. Cycads have very specialized pollinators, usually a specific species of beetle. Both male and female cycads bear cones (strobili), somewhat similar to conifer cones.

Cycads have been reported to fix nitrogen in association with various cyanobacteria living in the roots (the "coralloid" roots).[4] These photosynthetic bacteria produce a neurotoxin called BMAA that is found in the seeds of cycads. This neurotoxin may enter a human food chain as the cycad seeds may be eaten directly as a source of flour by humans or by wild or feral animals such as bats, and humans may eat these animals. It is hypothesized that this is a source of some neurological diseases in humans.[5][6]

Cycads all over the world are in decline, with four species on the brink of extinction and seven species having fewer than 100 plants left in the wild.[7] The plant has a very long fossil history, with evidence that they existed in greater abundance and in greater diversity before the Jurassic and late Triassic mass extinction events.

Explanation:

~Dr.Smiley~

(Jane)

8 0
2 years ago
Chymotrypsin is used for:__________
8_murik_8 [283]

Chymotrypsin is used for polypeptide cleavage on the C side of Trp, Tyr or Phe.

<h3>What is Chymotrypsin?</h3>

Other proteins' aromatic C-terminal amino acids are hydrolyzed by it using an active serine residue. The protease enzyme chymotrypsin cleaves peptide chains at the C-terminal phenylalanine (F), tryptophan (W), and tyrosine (Y) residues.

Since the 1960s, chymotrypsin has been used in clinical settings as an oral proteolytic enzyme preparation. In comparison to a few other enzyme preparations currently on the market, it offers better inflammatory symptom relief and supports a quicker recovery from acute tissue injury.

The inactive monomeric protein chymotrypsinogen, which is produced and secreted by mammalian pancreas, is broken down into chymotrypsin by cleavage of several peptide bonds. As a result, three different polypeptide chains that make up the active enzyme were created.

To learn more about  Chymotrypsin visit:

brainly.com/question/13638833

#SPJ4

5 0
2 years ago
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