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tia_tia [17]
3 years ago
10

(50 points) Which structures produce a fluid to protect the body in the first line of defense? Select four options.

Biology
2 answers:
Rzqust [24]3 years ago
5 0

Answer: The correct answer is skin,eyes, mouth, stomach.

Dmitrij [34]3 years ago
4 0

Answer:

b,c,d,e

Explanation:

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What are genotypes and phenotypes and how do they help to determine the traits of an offspring?
shtirl [24]

Answer:

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4 0
2 years ago
Hormones released by the endocrine system travel in the blood until they find their specific target cell. Group of answer choice
IgorLugansk [536]

Answer:

True

Explanation:

Hormones are released directly into the blood stream.Each hormone synthesized  is specific  to a particular receptor on the target cell. Therefore  the hormone  are activated to produce their effect when they bind with  the cells through the complimentary receptors on the cells.

3 0
3 years ago
Acetylcholine stimulates cells in the pancreas to secrete enzymes that aid in digestion of sugars. It does so by activating GPCR
Vesnalui [34]

Answer:

An elevation of cytosolic Ca2+ concentration, which leads to the activation of protein kinase C (PKC).

Explanation:

Pancreatic enzymes are stored in acinar cells inside zymogen granules and released when necessary. The pancreas secretes a wide range of enzymes, which includes proteases, carbohydrases (pancreatic amylase and, in some cases, chitinase) and pancreatic lipase.

Acetylcholine is a molecule that is produced in neurons and is necessary so that it can transmit the nerve impulse both at the level of the central and peripheral nervous system. It is one of the most important neurotransmitters, being the main neurotransmitter of the so-called cholinergic system.

Acetylcholine, which is released from parasympathetic nerve terminals, stimulates the secretion of insulin, glucagon, somatostatin and pancreatic polypeptide.

Phospholipase C  is a phosphodiesterase in charge for hydrolysis of a glycerophosphate bond , Phospholipase C is the target enzyme for some GPCRs.

Protein kinase C, is a family of protein kinase enzymes that are involved in controlling the function of other proteins through the phosphorylation of hydroxyl groups of serine and threonine amino acid residues on these proteins, or a member of this family.

3 0
4 years ago
What would happen if pasteurization wasnt invented?
77julia77 [94]

Answer:If pasteurization temperature or time is not achieved, a flow diversion valve is utilized to divert under-processed product back to the raw product tank. If the product is adequately processed, it is cooled in a heat exchanger, then filled.

Explanation:

7 0
3 years ago
How could a scientist use the scientific method to learn more about the Cretaceous era?
Alina [70]

First, it is necessary that this scientist decide on what point of the Cretaceous period he wants to study. Among several points he may want to study the evolution of microorganisms of that time, the life of a dinosaur species, or the evolution of dinosaurs, the flora that was established during this period, among others. This is the phase of the scientific method called Observation.

After that, he must enter the phase called "Elaboration of hypotheses" where he will raise questions about the point he decided to study. "How many flower species existed in that period?", "How many of these flowers can we observe today?" among others.

After that, he will enter the phase called "Experimentation", where he will establish a type of experiment and all the experimental factors and variables that will allow the hypotheses to be answered.

After the experiment he will collect the data that will be analyzed and that will give results that will answer the hypotheses previously established. This is the phase called "Analysis of the results".

At that moment, he will be able to reach the last phase of the scientific method, the phase called "conclusion", where he will show the conclusions that the experiment allowed to be established.

5 0
3 years ago
Read 2 more answers
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