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3 years ago

Antibiotics have been used to treat bacterial infections since the 1940s. In

Biology

1 answer:

mamaluj [8]3 years ago

4 0

The first answer because it’s natural selection when the weak die off the the strong get stronger also the strong produces more which stops antibiotics form working which is why we have antibiotics consistently changing

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g Type I diabetes is caused by destruction of the beta cells of the pancreas, the cells that produce insulin. In most cases, the

vodka [1.7K]

Answer:

it is a failure of tolerance (self-tolerance) and specificity (recognition)

Explanation:

Type 1 diabetes is a chronic disease caused by the selective destruction of β cells that are involved in the production of insulin in the pancreas. Type 1 diabetes can be classified into two types: Type 1A diabetes (the immune form of the disease) and Type 1B diabetes (the non-immune form of the disease). Type 1A diabetes is considered an autoimmune disorder where immune responses against pathogens suffer a failure of tolerance to antigens in the β-cells of the pancreatic islets. Thus, Type 1A diabetes is characterized by the process of recognition of β-cell antigens (autoantigens) by the immune system. This disease is often caused by genetic factors associated with mutations in the human leukocyte antigen (HLA) class II region located on chromosome 6.

4 0

3 years ago

What produces egg and sperms cells during the life cycle of a plant

tatyana61 [14]

Gametophyte

The cells from the male and female that combine to form a zygote are called gametes. The main job of the gametophyte is gamete production. Gametes are haploid reproductive cells. Gametes are produced in the sex organs on the haploid gametophyte by mitosis or cellular division without reduction of chromosomes sets. There are two sex organs; archegonium<span> which is found in the female sex organ producing egg cell and </span>antheridium<span> which is found in the male sex organ producing sperm cells.</span>

7 0

3 years ago

Water obtained from natural resources does not show neutral pH. What is the reason behind this?

evablogger [386]

The water from natural resources contain minerals that change the ph of water.

6 0

3 years ago

Read 2 more answers

What are the two types of biological interactions?

kaheart [24]

Answer: They can be either of the same species (intraspecific interactions), or of different species (interspecific interactions). These effects may be short-term, like pollination and predation, or long-term; both often strongly influence the evolution of the species involved. A long-term interaction is called a symbiosis.

Explanation:

6 0

3 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