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2 years ago

What controls the development of cells and tissues in multicellular organisms

Biology

1 answer:

V125BC [204]2 years ago

3 0

Answer:

Development is largely under the control of genes. Mature cell types of the body, like neurons and liver cells, express different sets of genes, which give them their unique properties and functions.

Explanation:

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Dna is a specialized carbohydrate contained within cells. t f

Wittaler [7]

True Dna is a specialized carbohydrate contained within cells.

8 0

3 years ago

True or false <br> The study of landforms is known as biodiversity.

Sphinxa [80]

Answer:

false

Explanation:

landform was not related ti biology it is geography

6 0

2 years ago

Read 2 more answers

Which diagnostic test is used for the direct visualization of ligaments, menisci, and articular surfaces of joints?

Sati [7]

Arthroscopy is done for direct visualization of the ligaments, menisci, and articular surfaces of the joints. Thus, option A is correct.

<h3>What is the role of ligament?</h3>

Ligaments are type of connective tissue which help to connect bones, joints and organs. It provide support internal parts of the body.

It is made of a band of connective tissue, collagenous fibre and spindle-shaped fibrocytes which is an elastic fibers.

Ligaments holds bones together, stabilize it, provide strength to joints etc.

By the use of Arthroscopy doctors can diagnose and treat the joint’s structural problems like any dysfunction. Hence, Option A is correct.

Learn more about ligament, here:

brainly.com/question/12977543

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Your question was incomplete. So the probable question was

Which diagnostic test is used for the direct visualization of ligaments, menisci, and articular surfaces of joints?

A. Arthroscopy

B. Muscle biopsy

C. Ultrasonography

D. Electromyography

3 0

1 year ago

The excessive concentrations of circulating parathyroid hormone appeared to be caused by a tumor of the parathyroid gland or ___

Reika [66]

Answer:

parathyroidoma

Explanation:

The condition where the parathyroid hormone is produces excessively is termed as Hyperparathyroidism. This condition arises when the balance between the calcium and phosphorus gets disturbed. The calcium and phosphorus balance is affected in following two cases –

a) When the parathyroid gland is not working properly due to its own problem usually termed as hyperparathyroidism or more specifically primary hyperparathyroidism

b) When the parathyroid gland is not working properly due to any other disease in the body affecting the functioning of parathyroid. It is termed as secondary hyperparathyroidism

4 0

3 years ago

Bone formation begins when ____________ secrete the initial semisolid organic form of bone matrix called ____________ .

butalik [34]

Answer:

a. osteoblasts

b. osteoid

Explanation:

Osteoblasts are the fundamental cell of bone tissue. They are the cells that synthesize the bone matrix called osteoid from which it is made from the skeleton of bone fish, to the skeleton of humans. Since the bone skeleton is an evolutionary paraphiletic characteristic (it is present in several taxonomic groups that have evolved from the same ancestor).

Osteoblasts are responsible for the development and growth of bones during the juvenile stage of individuals and are also responsible for maintaining adult bone and regenerating bone when it breaks.

Osteogenesis is the process of differentiation of osteoblasts. The cells from which osteoblasts differ are called osteoprogenitors. The differentiation of osteoprogenitor cells, which come from the mesoderm, periosteum or bone marrow, is induced by growth factors called bone morphogenetic proteins (BMPs), capable of inducing the growth of bone, cartilage or connective tissue. When an osteoprogenitor cell receives a BMP signal, it quickly begins to express the genes to generate collagen, osteonectin and alkaline phosphatase, among other compounds necessary for bone growth. When the bone grows, it ends up wrapping some of the osteoblasts and they lose their ability to replicate, at that time they are dedicated to bone maintenance and not to their synthesis and are called osteocytes.

6 0

2 years ago