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Kryger [21]
2 years ago
14

Oswald Avery helped build our understanding of genetics by showing that:

Biology
1 answer:
ivanzaharov [21]2 years ago
3 0
B is the correct answer
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Sickled red blood cells are believed to block blood that is trying to exit the corpus​ spongiosum, which for men​ causes:
Xelga [282]

Answer:

Answer is B. Priapism.

Explanation:

Corpus spongiosum are the three cylinders encased in the bucks fascia. They run through the glass and shaft of the penis, and during erection, they contain almost 85-90% of theology volume.

Priapism can be described as persistent erection of the penis, which is caused by excessive blood flow to the penis or when blood is trapped inside the penis blood chambers I. e, corpus spongiosum.

Priapism can be of two types, they are

1. High- flow Priapism : this is caused when the artery supplying blood to the penis is damaged, thereby, causing it to be oversupplied with oxygenated blood. This type is not painful and can be treated by adopting cold therapy, the use of ice packs.

2. Low-flow Priapism : This occurs when old blood is trapped inside the penis blood chambers. This type is very painful and require urgent medical attention.

Note that, the second type of priapism,low-flow priapism, is caused in the case of a sickled-cell person, because the shape of the blood cell can easily trap blood in the penis.

5 0
3 years ago
Some inbred strains of the weedy plant Arabidopsis thaliana flower early in the growing season, but other strains flower at late
RoseWind [281]

Answer:

a. Let us consider that L is responsible for late and l is responsible for early. From the mentioned data, it can be concluded that allele L or late is dominant over early. By crossing plants 1 and 4 we get the expected ratio of 3: 1, which shows that it follows Mendel's law of dominant.  

b. The genotype of all the four plants are:  

1st plant = Ll

2nd plant = ll

3rd plant = LL

4th plant = Ll

c. If the plant 1 is self-fertilized then the expected progeny will be 3 (late): 1 (early).  

In case if the 2nd plant is self-fertilized, the expected progeny will be only early.  

In case if the 3rd plant is self-fertilized, the expected progeny will be only late.  

In case if the 4th plant is self-fertilized, the expected progeny will be 3 (late): 1 (early).  

3 0
3 years ago
Does the enzyme make the reaction occur faster
Scrat [10]

Answer:

Enzymes are biological catalysts. Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy.

5 0
3 years ago
Read 2 more answers
2. Ms. L's respiratory function was evaluated by quantifying different lung volumes and capaci-
Sphinxa [80]

Based on respiratory function tests, the correct options are:

  • spirometer.
  • vital capacity
  • residual volume.

<h3>What is a respiratory function tests?</h3>

A respiratory function test is a test done to evaluate the ability of the lungs to take in air and remove carbon dioxide

The machine used for this test is called a spirometer.

Therefore;

  • Ms. L's respiratory function was evaluate using a machine called a spirometer.
  • The amount of air that can be expelled by maximum ex-halation after maximum inhalation is termed the vital capacity
  • An increase in the amount of air remaining in her lungs after a normal expiration is called the residual volume.

Learn more about respiratory function test at: brainly.com/question/18117969

#SPJ1

3 0
2 years ago
Which of the following is NOT true about the cohesion-tension model of water transport?Select one:a. Water must completely fill
aksik [14]

Answer:

d. Water is transported in the phloem.

Explanation:

Xylem is the vascular tissue responsible for the movement of water and dissolved minerals from roots to various plant parts. Phloem is another vascular tissue that serves mainly in the translocation of sugars. The cohesion-tension model of water transport explains that the upward movement of water from roots to the aerial plant parts is drive by transpiration pull. Transpiration of water from leaves results in a large negative pressure in xylem elements. Cohesion and adhesion properties of water maintain the water column in xylem elements.

5 0
3 years ago
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