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AlekseyPX
3 years ago
13

Which of the following is an example of a negative feedback altering homeostatic control? A) a person's heart rate drops as she

runs B) a person shivering as temperatures rise on a hot summer day C) the production of oxytocin (a hormone) increases as oxytocin levels rise in the body D) the concentration of salt in urine increases after eating a large bag of salty chips
Biology
1 answer:
galben [10]3 years ago
6 0

Answer:

Option D, the concentration of salt in urine increases after eating a large bag of salty chips

Explanation:

A negative feedback  reduces the activity causing any uncertain output that disturbs the homeostatic control. For example - if temperature of the body rises , signals are send via negative feedback loop to bring it down to normal body temperature.

Like wise when the concentration of salt in urine rises, we feel thirsty. Thus water is taken to cope up with the increased salt content in body after eating chips.

Here,  the activity (i.e eating of salty chips) disturbing homeostatic control is reduced by increasing the salt content in urine that makes the person thirsty.

Hence, option D is correct

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What is the important result of mitosis?
sukhopar [10]

Answer:

The importance of mitosis lies in its condition of cellular reproduction par excellence, characteristic of the vast majority of life forms that currently populate the Earth.

Explanation:

Mitosis is the cellular process by which two identical nuclei are produced in preparation for cell division. In general, mitosis is immediately followed by the equitable distribution of the cell nucleus as well as the rest of the cellular content in two daughter cells.

We all start being a cell. That is quite difficult to imagine, but it is true. And now there are about a hundred billion cells in each of our bodies, and each one has to carry the complete set of DNA instructions. That means that when cells divide, all that has to be copied by some process. And that is mitosis, where each chromosome has to be converted into a pair, and then they have to separate properly so that each of the daughter cells receives a complete set.

7 0
4 years ago
On which bone does Sella Turcica occurs?
katen-ka-za [31]

Answer:

Sella Turcica occurs on the sphenoid bone.

Explanation:

Sella Turcica is the saddle shaped bone of the skull and acts as cephlaometric landmark. The inner aspect of sella turcica consists of hypophysis or pituitary gland.

Sella Turcica is present in the sphenoid bone of the skull just behind the tuberculum sellae and chiasmatic groove. The shrink pituitary gland is indicated by the empty Sella Turcica.

4 0
3 years ago
What are the green pigments in the plant??
Strike441 [17]

Answer: Chloroplast

Explanation: Pigments give the chloroplast and the plant its color.

7 0
3 years ago
Classify the following organisms into their respective kingdoms (i) Yeast (ii) Penicillium (iii) Rhizobium (iv) Mushroom (v) Amo
lions [1.4K]

Answer:

(i) Yeast- Kingdom Fungi

(ii) Penicillium- Kingdom Fungi

(iii) Rhizobium- Kingdom Eubacteria

(iv) Mushroom- Kingdom Fungi

(v) Amoeba- Kingdom Protista

(vi) fish- Kingdom Animalia

Explanation:

Living organisms were classified into a large group called KINGDOM, which represent the largest and most generic grouping consisting of organisms that share a few similarities. The kingdoms that living organisms were classified into are as follows: Plantae, Animalia, Fungi, Protista, Eubacteria, Archaebacteria, etc.

Based on the question, the mentioned organisms are classified into the following kingdoms:

(I) Yeast: Yeast is a unicellular microbe classified under the Kingdom Fungi due to possession of chitin in its cell wall and other similar features with members of kingdom Fungi.

ii) Penicillium- Penicillium is a genus classified under the Kingdom Fungi.

(iii) Rhizobium- Rhizobium is a genus of prokaryotic organism (lack membrane-bound nucleus and organnelles) classified under the Kingdom Eubacteria.

(iv) Mushroom- Mushrooms are saprophytic (heterotrophic) species of organisms classified under the Kingdom Fungi.

(v) Amoeba- Amoeba is a genus of unicellular eukaryotes classified under the Kingdom Protista.

(vi) fish- Fishes are organisms classified under the Kingdom Animalia

3 0
3 years ago
How is the flow of matter and energy through an ecosystem connected to the carbon and nitrogen cycles?
Assoli18 [71]

Answer:

when organisms use organic matter for cellular respiration all that matter goes back into carbon dioxide, water, and minerals, while ALL the energy leaves the ecosystem as heat.

Explanation:

3 0
3 years ago
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