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Aliun [14]
3 years ago
9

Humans have what type of circulatory system

Biology
2 answers:
Goryan [66]3 years ago
4 0
The cardiovascular system I think. Hope this helps
IgorLugansk [536]3 years ago
4 0

Answer:

I'm pretty sure the answer is: Double Loop

Explanation: If this is correct pls consider brainliest!

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A young child runs a fever of 40 °c for 24 hours. explain what effect this may have on his digestion
Lunna [17]

Since the temperature is above 37 degrees, the child’s digestive system will begin to slow down as the enzyme begins to denature because both the internal temperature and the external body heat influence digestive processes. The effect upon the system of the temperature of food and drink is also a matter of significant consideration.

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Cell differentiation in multicellular organisms allows cells to?
Finger [1]
Is the process where a cell changes from one cell type to another..
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4 years ago
Which of the following investigators was (were) responsible for the following discovery? In DNA from any species, the amount of
Zarrin [17]

Answer :Erwin Chargaff   a Biochemist

Explanation:

He formulated the base paring of double helix of DNA. He reasoned that since the percentage of four  DNA  bases are of this proportions in human;

                                  Adenine=30.9% and Thymine =29.4%;

                                  Guanine=19.9% and Cytosine =19.8%

Then,  the amount of adenine will always be equal to thymine,

And the amount of Guanine equals to cytosine based on this percentages of distribution.  

(Adenine and Guanine are large, molecule of Purines, while thymine and Cytosine are Pyrimidine)  

 

He concluded (although scientist believed, he did not explicitly stated this) that this should be the base paring patterns in DNA molecule. This is the first Chargaff Rule.

His second rule is that the DNA composition, in the relative amount of the four bases Adenine, Thymine, Cytosine and Guanine varies in proportion from one organisms to another. And this is the basis of molecular diversity.

6 0
3 years ago
The stomach is held in place by a variety of _______.
cupoosta [38]
I guess the stomach is held in place by a variety of Muscle cells, Epithelial cells, and connecting tissues; so the answer is: all of the above.
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3 years ago
What are the process of the digestive system​
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