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Alexxandr [17]
3 years ago
9

which of the following digestive functions can occur in the mouth? a. secretion of bile b. absorption of water c. enzymatic acti

on on carbohydrates d. enzymatic action on protein
Biology
1 answer:
Brums [2.3K]3 years ago
3 0
Ans : C - enzymatic action on carbohydrates ( enzyme amylase catalyses carbohydrate to maltose here in the mouth )
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Elenna [48]
It is never safe to pour waste chemicals anywhere but a place where they can be properly and expertly disposed. While there may be a lot of water to dilute the solution, there is no telling what chemical compounds or substances are in the drain/sewage system, and if in an unfortunate event, the waste chemicals and preexisting ones do not mix well, then you may have a very dangerous situation.
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Why do resistant bacteria multiply faster after a patient has taken antibiotics compared to a healthy person who has not taken a
Alenkasestr [34]

Answer:

When patient takes in antibiotics the resistance bacteria gets a competitive survival advantage over the normal sensitive bacteria and hence grows faster.

Explanation:

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  • When a healthy person ( having no prior exposure to the antibiotic) is infected by bacteria ( both sensitive and resistant varieties):
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  2. This mutual competition restricts either of the sensitive or resistant bacterial strain to grow profusely.
  • When a person (having prior antibiotic exposure), gets infected by bacteria ( both sensitive and resistant varieties) and is exposed to the same antibiotic:
  1. The sensitive variety, due to its sensitivity towards the drug, gets killed.
  2. The resistant variety, due to its MDR genes, bypasses the lethal effect of the drug and survives.
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4 0
3 years ago
A carrier of a genetic disorder who does NOT show symptoms but who CAN pass on a disease to his or her offspring would have whic
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C. The trait is recessive as the carrier doesn’t show the symptoms and has to be heterozygous to pass the trait.
5 0
2 years ago
Please help im having trouble with biology
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Okay, to start off, the basic difference between prokaryotic cells and eukaryotic cells is prokaryotic cells are cells without a nucleus, and eukaryotic cells are cells that contain a nucleus.

So based off that information alone, you can answer #1. Cell A does not have a nucleus (big circle shape), while Cell B does. Therefore, Cell A is the prokaryotic cell.

As for #2, prokaryotic cells and eukaryotic cells DO have similarities despite their differences. For instance, they both have some of the same organelles, like the plasma membrane, ribosomes, cytoplasm, and DNA.

Finally for #3, two differences are that #1, prokaryotic cells have nucleoids while eukaryotic cells have a nucleus, and #2, prokaryotes have circular DNA while eukaryotes have linear DNA. 

Your best bet is finding a visual aid in a textbook or online to help you, so you can better identify organelles and eukaryotic/prokaryotic cells. Also, there are some cheesy videos out there on YouTube which I was forced to sit through in Bio class last year such as the Amoeba Sister's youtube channel which could help. Hope this helped!

https://www.youtube.com/watch?v=ruBAHiij4EA
https://www.youtube.com/watch?v=8IlzKri08kk


7 0
3 years ago
Which of the following statements is true?
kogti [31]

The correct answer is option D, that is since genetic drift is random, it does not always favor the better or healthier organisms.  

A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.  


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