Why do arteries need to be thick, muscular, and elastic?

Answers

Answer 1
Answer:

blood flows at a high pressure, so if the arteries are thin and less muscular, the arteries can explode due to the pressure. so it needs thick and muscular properties so that it can withstand the increasing pressure of the flow of blood.

im not sure why it needs to be elastic. Hope it helped :)

Answer 2
Answer:

high pressure blood basically



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Is a tiny, hair-like fiber that aids in movement.

Answers

there could be multiple answers to this due to where the hair like fibre is. if it is on a bacteria to aid movement it is called a flagella. if it is attached to a cell, for example in the throat or oviduct, it is called a cilia 

Answer:

The correct answer is Cilia

Explanation:

Which part of the kidney acts as a funnel to pass the urine that is produced in several nephrons to the ureters? A. Medulla

B.
Cortex

C. Renal pelvis

D.
Renal vein

Answers

c. renal pelvis is the answer
I do think that the answer is C

Nitrogen fixation makes nitrogen gas useful to crops.

true or false

Answers

Answer:

True

Explanation:

The nitrogen fixation is a process that involves conversion of atmospheric nitrogen to nitrates in the soil. This process is mainly performed by nitrogen-fixing bacteria present in the soil.

The nitrogen fixation is important for plants and animals. The nitrogen present in the atmosphere cannot be used directly by animals and plants. The nitrogen is main constituent of chlorophyll that is required for the process of photosynthesis and for amino acids that synthesize proteins. Thus, Nitrogen fixation makes nitrogen gas useful to crops.

It is actually True!

Which of the following are specialized cells?blood cells
muscle cells
bone cells
all of the above

Answers

The answer is all of the above.

Cells are all similar, but still, they differ in size, shape, function. All of this depends on their role in the body. A blood cell, muscle cell, bone cell, for example, are similar enough on some basic level. Still, each of these cells is specialized to work in the special way the body needs to. They are all specialized for different functions.

When a muscle cell demands energy to contract, what happens to ATP?

Answers

The atp is shuttled to the mitochondria because the mitochondria can use the stored energy and make it into used energy

Different breed of sheep of India?

Answers

In India, there are several different breeds of sheep that are native to the country. Some of the major breeds include:

1) Nali: The Nali breed of sheep is found in the states of Rajasthan, Haryana, and Punjab. They are known for their high-quality wool and adaptability to the arid regions of North India.

2) Deccani: The Deccani breed is native to the Deccan plateau in Maharashtra, Telangana, and Andhra Pradesh. They are well adapted to the hot and dry climatic conditions of the region and are primarily raised for meat production.

3) Mandya: The Mandya breed is found in the state of Karnataka. They are medium-sized sheep known for their high milk yield and are primarily reared for dairy purposes.

4) Magra: The Magra breed is predominantly found in the arid regions of Rajasthan. They have a sturdy build, adapted to the harsh desert climate, and are primarily raised for meat and wool production.

5) Gaddi: The Gaddi breed is native to the hilly regions of Himachal Pradesh and Jammu and Kashmir. They are well adapted to the cold and rugged terrains of the Himalayas and are primarily reared for wool production.

These are just a few examples of the different sheep breeds found in India. Each breed has its own unique characteristics and is suited to specific climatic conditions and purposes, such as wool, meat, or dairy production.