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Alexus [3.1K]
3 years ago
13

What are the structures of a villi?

Biology
2 answers:
Wittaler [7]3 years ago
6 0
The large number of villi give the internal intestinal wall a velvety appearance. Each villus has a central core composed of one artery and one vein, a strand of muscle, a centrally located lymphatic capillary (lacteal), and connective tissue that adds support to the structures.
daser333 [38]3 years ago
3 0
What the other person said!
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Why don’t magnets affect gamma rays as they pass over it?
daser333 [38]
We may apply Fleming's Left Hand Rule of Electromagnetism to determine how a charged particle behaves in a magnetic field. However, because the gamma rays do not have a charge on them, like alpha particles and beta particles do, they are not deflected. 
Gamma rays are electromagnetic waves and its is a characteristic of electromagnetic waves that they have no charge.
8 0
3 years ago
Primary features of a long bone. Which of the following correctly pairs the structure at C with its primary component?
OlgaM077 [116]

Answer:

periosteum ----> dense irregular connective tissue

Explanation:

  • The periosteum is a dense fibrous membrane that covers the surfaces of bones.

The periosteum consists of two layers-

    1. Outer fibrous layer

    2. Inner cellular layer

  • It is mainly composed of dense irregular connective tissue along with a layer of simple squamous epithelium.
  • The function of periosteum is to cover the surface of all the bones except those surfaces that are covered with cartilage such as joints and tendons and ligaments.
4 0
3 years ago
A 30n force pushes a box to the left, a 40n force pushes a box to the right, the box will
ser-zykov [4K]
The box will move to the right
7 0
3 years ago
*BRAINLIEST*The diagram below shows the branching tree diagram for humans. The text box below it shows the set of derived shared
Inga [223]

Answer:

I would write "terrestrial/lives on land during all life stages" between the frog and pigeon branches.

Explanation:

Jaw evolution has started with fish, so i'd place that before the perch, evolution of four limbs is next and I would plate it between the perch and the frog. Evolution of an egg has ensured that organisms remain terrestrial during all stages of life and don't need to rely on water to lay their eggs. So I would place that between the frog and the pigeon. True mammary glands and true hair, as we know it formed on mammals so i'd place that between the pigeon and the rats (although synapsids evolved similar structures long before birds even existed). And lastly, I would place "walking on two legs" between rats and human branches. Because our ancestors evolved bipedalism relatively late.

8 0
3 years ago
The magnetic Quality of ancient rocks is called _________
Arisa [49]

The magnetic Quality of ancient rocks is called ___<u>C.Paleomagnetism</u>____

4 0
3 years ago
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