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k0ka [10]
3 years ago
6

PLEASE HELPP!

Biology
1 answer:
NISA [10]3 years ago
8 0
Answer is D.

Waste products from metabolism are carried by the circulation to the kidneys, which filter them out if the blood to be excreted in urine.
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The following table shows the symptoms in four patients. Each patient suffers from a different disease.
Harrizon [31]

Answer:

A

Explanation:

  • Tuberculosis is a bacterial infection caused by <em>Mycobacterium tuberculosis</em>.
  • It is spread via air when affected people cough, sneeze, spit or speak.
  • It mostly affects the lungs, thus, damaging the respiratory system. Affected people have difficulty breathing, produce bloody mucus and have a chronic cough.
  • Antibiotic treatment is used for treating it but many people have developed resistance to the antibiotic treatment, giving rise to a new condition called Multi Drug Resistant Tuberculosis (MDR-TB).
3 0
3 years ago
Read 2 more answers
A phenotypic ratio for a dihybrid cross is predicted to be 9:3:3:1. The experimental values are:
Maslowich
Two traits that we are examining are the color (purple/white) and the smoothness. 
In our sample, we have 135 individuals ( 75 +28+24+8= 135).

Since we know that expected ratio of a dihybrid cross, is <span>9:3:3:1 we can calculate what is the expected values of each phenotype is.

So, for the white wrinkled phenotype, we expect that there will be one-sixteenth of the whole sample ( there are 16 parts of the whole sample 9+3+3+1=16).
So, we multiply the whole sample- 135 with one-sixteenth (or </span>0.0625) and get 8,4375.
When you calculate the values for all phenotypes you get results shown in the attached excel table.
When you have your expected and experimental values you compare them with a chi-square test. (The test determines if the difference between the expected and experimental results is statistically significant).


4 0
3 years ago
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In an ecosystem, there are many factors that affect how many organisms can survive there. Which of the following is one of those
Kruka [31]

I think C) availability of water is your best answer because alot of organisms count on water as a major resource because they need it to survive so a lack or a gain in the amount of water will majorly effect an ecosystem.

5 0
3 years ago
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While conducting experiments with E. coli, Meselson and Stahl established that during DNA replication, each of the two strands t
alekssr [168]

Answer: d

Expanation:

8 0
3 years ago
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Can spiders really sense danger
spayn [35]

No, not really because if nothing is near them they cant sense any type of danger. But if something is close they may be afraid but don't sense danger. It basically a spiderman myth.

Hope I helped!


- LILBLAKEYOUT

6 0
3 years ago
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