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Ghella [55]
2 years ago
14

The shape of the external ear is maintained by ________. Select one: a. hyaline cartilage b. adipose tissue c. fibrocartilage d.

elastic cartilage
Biology
1 answer:
d1i1m1o1n [39]2 years ago
4 0

Answer:

D) elastic cartilage

Explanation:

Cartilage is a connective tissue which is fibrous in composition which provides its physical properties like the softness, elasticity and strength.

There are three types of cartilages- the elastic, hyaline and the fibrocartilage. Among these three the cartilage which forms the external ear is the elastic cartilage. The elastic cartilage is composed of the elastin protein, type II collagen and the elastic fibres. The presence of the elastin proteins and fibres allows the ear to be an elastic organ.

Thus, Option-D is the correct answer.

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What do you call the reproduction in plants where the male and female parts of the flowers of the plants are involved?
MatroZZZ [7]

Answer:

your answer would be d. sexual

5 0
3 years ago
Crossing over occurs during which phase of meiosis
grandymaker [24]

prophase

Further genetic variation comes from crossing over, which may occur during prophase I of meiosis. In prophase I of meiosis, the replicated homologous pair of chromosomes comes together in the process called synapsis, and sections of the chromosomes are exchanged.

Hope it helps!

4 0
3 years ago
Which of the following enzymes are involved in coupled reactions in glycolysis? (Select all that apply.) Phosphoglycerate kinase
Len [333]

Answer:

Hexokinase, Phosphofructokinase, Phosphoglycerate kinase and Pyruvate kinase

Explanation:

Coupled reactions are reactions that require energy by one process and is supplied by another; where the energy is transferred from one side of the reaction to the other.

In glycolysis, four (4) reactions undergo coupled reactions

1. Reaction one: which is the phosphorylation of glucose to glucose-6-phosphate coupled to the hydrolysis of ATP to ADP and Pi catalyzed by hexokinase.

2. Reaction three: The phosphorylation of fructose-6-phosphate to fructose-1-6-bisphosphate and the hydrolysis of ATP, catalyzed by phosphofructokinase

3. Reaction seven: Phosphoglycerate kinase catalyzes the conversion of Bisphoglycerate to 3-phoshoglycerate and the production of ATP from ADP

4. Reaction ten: Pyruvate kinase catalyzes the conversion of enol phosphate to the enolic form of pyruvate with the synthesis of ATP.

8 0
3 years ago
Just because one hypothesis may help to explain a phenomenon does not mean it is the only hypothesis that could explain it. Imag
HACTEHA [7]

Answer:

There would be a difference between the results.

Explanation:

Because the question is not complete, I will provide a brief explanation. There would be a difference in the results. This is because of the different measurement method. One method is based on the theoretical formulation. The other, is based on the actual work. This makes the outcome to be different.

5 0
3 years ago
All of these are true about surface runoff EXCEPT: *
Triss [41]

Answer:

D

Explanation:

Using the eliminating method, all the others are true of surface runoff, so they are not correct answers. So, that means D must be correct.

7 0
3 years ago
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