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Lunna [17]
4 years ago
15

Why is it so hard to define viruses as living or non-living?

Biology
2 answers:
mixer [17]4 years ago
8 0
Virus are living beings but it is hard to decide whether they are living or not because of several reasons. 1- they show the characteristics of living being when only it live in a cell. 2- they never breathe 3- they are minute 4- they have a simple body structure 5- they reproduce some say they are in the border between living and non living
UNO [17]4 years ago
3 0
Viruses are not always classified as living cells because they cannot live independently. They rely on a host to provide all resources to live, without a host they are in a dormant, near dead like state. Therefore it has to define a virus as dead or alive as it may or may not have a host.
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Explain how both the digestive system and the urinary system work to conserve water in the human body.
Ghella [55]
Everything that we eat and drink contains some percentage of water. So, to start, you have to know that the human body has receptors which estimate if we have enough water in our blood and cells in general. From these receptors, the information travels through the neurons to the part of the brain that is responsible for activation of different responses. 

The digestive system is important because in its lower parts, liquids are absorbed and inserted in the bloodstream. Then through the bloodstream, they travel to all parts of the body and are absorbed by cells as needed. When blood passes through the body, it gets to the kidneys where water and electrolytes are filtered, reabsorbed if needed and excreted through the urine. 

Now, if the brain has a signal that the body has a lack of liquids, it activates hormones which influence the bloodstream in both the digestive and the urinary system. In this case, the digestive system will absorb more liquids from food because the hormones will make the blood vessels in the digestive area larger, and on the other hand, we will produce less urine because the kidneys will get an assignment from the brain to filter liquids, but to reabsorb them again as much as possible. 
3 0
3 years ago
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How many genes to dihybrids compare?<br><br> 1<br> 4<br> 3<br> 2
Gre4nikov [31]

Answer:

1

Explanation:

Therefore, a dihybrid organism is one that is heterozygous at two different genetic loci. In 1865, Gregor Mendel performed dihybrid crosses on pea plants and discovered a fundamental law of genetics called the Law of Independent Assortment.

4 0
3 years ago
Transcribe the following DNA sequence (use a different color for the mRNA strand, and remember that RNA has uracil instead of th
Fed [463]

Answer:

C U A G C U A U G G U A A G C C G C G U A U G A A G C

Explanation:

this is the complementary strand in mRNA.

A=U

G=C

C=G

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this is the answer key to any mRNA strand.

Hope this helps! :)

8 0
3 years ago
in a herd of 80 dairy cows, 16 have clack-and -white coats, and 64 have solid black coats. What is the frequency of cows with bl
solniwko [45]

20% Is the answer APEX

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3 years ago
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What are organelles and why are they important? (Please do not take answers from the Internet)​
kow [346]

Answer:

(Have a nice day)

¶Emma Jess¶

Explanation:

The small structures present within the cell to performed different functions are known as organelles.

U CAN HAVE MORE INFO FROM ATTACHMENT.. THATS MY TEXT BOOK

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2 years ago
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