Ralph is looking at a blood vessel under a microscope as part of his study about the cardiovascular system. He notices that the vessel contains blood and has valves. What is the blood vessel that he is observing?a. capillary
b. vein
c. lymph
d. artery

Answers

Answer 1
Answer:

The right answer is vein (it contains blood and has valves).

The infra-cardiac veins of small and medium caliber possess this system of fight against gravity. The valves consist of a dense connective tissue, surmounted by endothelial cells, corresponding to a fold of the intima. They allow blood circulation in the sense organ / heart but prevent venous reflux.

Answer 2
Answer:

Answer: b. vein

Vein is a blood vessel that exhibit thin muscular walls and it brings the deoxygenated blood  from all the cells, tissues and organs back to the heart. In the veins the valves are present which prevent the backward flow of blood. Lumen of the vein is wide.

According to the above information vein is the correct option.


Related Questions

Which of the following is not a function of smooth muscle tissue? forcing blood from the heart into the major arteries forcing urine out of the urinary tract moving food materials along the digestive tract elevating hairs on the arm altering the diameter of the respiratory passageways
A student is examining leaf cells. Which organelle is most likely to be missing from the cells?
What type of macromolecule is DNA?a. Carbohydrate b. Lipid c. Nucleic acid d. Protein
Which is NOT a property of magnetic field lines?a. They form complete loops from pole to pole. b. They can be directly observed. c. They never cross. d. They spread out as they get farther from the magnet.
Which is not an example of matter and energy cycling through living things? A. Trees growing B. Plants absorbing carbon dioxide? C. Salmon eating shrimp. D. A drop of water falling through the sky?

Roses and lilies are _____.

Answers

Bryophytes they both are Bryophytes

Final answer:

Roses and lilies are types of angiosperms, with lilies being superior flowers due to the placement of their ovaries above other flower parts. Roses have been symbolically associated with beauty and romance.

Explanation:

Roses and lilies are types of angiosperms. Specifically, lilies are considered superior flowers because they have their ovary positioned above the other flower parts. This does not necessarily mean in terms of superiority or inferiority in value, but rather in the positioning of the flower's parts. An example of this can be seen in a lily. On another note, roses are known for their visually appealing nature and symbolic representation of beauty and romance. Art installations, such as the one mentioned by Gallaccio, have used a copious amount of roses to make a striking statement, even as these roses decayed over time.

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The presence of an epiphyseal plate indicates that _______ the bone is broken. the bone is dead. the bone is increasing in diameter. the bone is lengthening. the bone is no longer lengthening.

Answers

The presence of an epiphyseal plate indicates that epiphesyeal the bone is broken the bone is dead. the bone is increasing in diameter the bone is lengthening the bone is no longer lengthening.

What is epiphesyeal plate?

In children and adolescents, new bone growth occurs in the growth plates. They are made of cartilage, a flexible, rubbery material (the nose, for instance, is made of cartilage).

The majority of growth plates are found close to long bones' ends. Bones that are longer than they are wide are known as long bones.

They increase the bone's length and breadth. The growth plates become solid bone as children age. A closed growth plate is one that has entirely solidified into bone. The bones stop growing when a growth plate closes.

Therefore, The presence of an epiphyseal plate indicates that epiphesyeal the bone is broken the bone is dead. the bone is increasing in diameter the bone is lengthening the bone is no longer lengthening.

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Final answer:

An epiphyseal plate signifies that the bone is lengthening. When the plate progresses to an epiphyseal line, it indicates that the bone has finished lengthening.

Explanation:

The presence of an epiphyseal plate indicates that the bone is lengthening. The epiphyseal plate is responsible for the longitudinal growth of long bones. Chondrocytes on the epiphyseal side of the epiphyseal plate divide, where one cell remains undifferentiated near the epiphysis, and one cell moves towards the diaphysis. The cells that are pushed from the epiphysis, mature and are destroyed by calcification. This process replaces cartilage with bone on the diaphyseal side of the plate, leading to bone lengthening.

In contrast, the absence or closure of the epiphyseal plate indicates that the bone has stopped growing in length. As a bone matures, the epiphyseal plate progresses to an epiphyseal line, which are the remnants of the epiphyseal plates in a mature bone.

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Does mitosis more closely resemble meiosis 1 or meiosis 11? Explain your answer.

Answers

The answer would be meiosis 2 because in this separation of sister chromatids occur which is similar if not identical to mitosis.

2. Identify the tectonic feature created at location B (south america)

Answers

Answer:

Andes mountains

Explanation:

Question 9The process by which the positive and negative ions of a crystalline solid separate in water is called ____.

A)dissociation

B)ionization

C)saturation

D)solution

Answers

Answer:

The process is A) dissociation.

Explanation:

In this process, the crystalline ions can be separated as well as split into smaller particles like radicals, ions, or atoms, generally in a reversible way.  

As an example, if an atom is dissolved in the water, a chemical bond that shares electron pairs among the atoms between a single hydrogen atom and electronegative atom is fragmented through heterolysis fission giving off a positive ion and a negative ion.

A) Dissociation

Im a tutor for for English, Science, and math snd i remember one of my friends had this on there study guide so yea...

What characteristic do all algae share?

Answers

They are autotrophs.
they are autotrophs because they make their own food like protists do via photosynthesis.(Was this helpful?)