1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tema [17]
3 years ago
13

Explain how Ab diversity is generated

Biology
2 answers:
inysia [295]3 years ago
7 0

Explanation:

After repeated stimulation by antigen, B cells can make antibodies that bind their antigen with much higher affinity a process called affinity maturation. ... Thus, antigen stimulation greatly increases the antibody arsenal. Antibodies are proteins, and proteins are encoded by genes.

ser-zykov [4K]3 years ago
4 0

Answer:

antigen stimulation greatly increases the antibody arsenal. Antibodies are proteins, and proteins are encoded by genes.

Explanation:

repeated stimulation by antigen, B cells can make antibodies that bind their antigen with much higher affinity—a process called affinity maturation.

You might be interested in
11. What are the potential impacts of climate change on Central America? increase rates of skin cancer on indigenous people inte
timofeeve [1]
Intensify drought and hurricanes in the region (these usually cause climate change) hope this helps and i hope I’m right please let me know lol
7 0
4 years ago
when both water and salts are present is a solution and the cell needs water which process enables the cell to obtain the water
photoshop1234 [79]
The correct option is OSMOSIS THROUGH A SEMI PERMEABLE MEMBRANE.
Osmosis is defined as the process by which molecules of a solvent [water] are transported through a semi permeable membrane from the region of a lower solute concentration to that of higher solute concentration. The membrane is said to be semi permeable because it allows the water molecules to pass through but does not allow the salt molecules to pass.<span />
3 0
3 years ago
Read 2 more answers
Match the function or location to the correct connective tissue. Allows the growth of long bones Intervertebral discs, pubic sym
pychu [463]

Answer:

<h3>Allows the growth of long bones</h3>

Hyaline cartilage

Hyaline cartilage allows growth of long bones by endochondral ossification, which involves <u>replacement of the initial hyaline cartilage models to bony tissue</u>. This <em>model</em> is <em><u>glass-like</u></em> and formed from the <u>combination of chondroitin sulfate and type II collagen</u>. Aside from bone growth, it's also seen in joints, anterior ends of ribs, upper respiratory tract like larynx, trachea, and bronchi.

<h3>Intervertebral disks, pubic symphysis</h3>

Fibrocartilage

Fibrocartilage is composed of<u> Type 1 and 2 collagen</u>, which contributes to the toughness of this tissue. It is present in these sites due to the dynamic nature of these body parts. This cartilage is able to w<u>ithstand a certain amount of shear and compressive forces</u>. Along with the hyaline cartilage, it also <u>promotes bone formation.</u>

<h3>External ear, epiglottis, and auditory tubes </h3>

Elastic cartilage

Elastic cartilage, or yellow cartilage contains a number of elastic fiber and collagen. Elastin is the primary protein in this tissue, which contributes to the <u>elasticity and flexibility</u> of the above body parts.  If observed under the microscope, its structure is same to hyaline but has numerous yellow elastic fibers present, which appear as a dark streak.

<h3>Outer portion of all bones</h3>

Compact bone

Compact bone or cortical bone, is the substance used to form the solid outside structure of the bones.

<h3>Inside skull bones, vertebrae, and sternum</h3>

Spongy bone

Cancellous bone, spongy bone, or trabecular bone is mostly found in the long bones, <u>covered by compact bone</u>. The bone is sponge-like in structure because it <u>houses the blood vessels inside the bones.</u>

<h3>Transports oxygen, carbon dioxide, and other substances</h3>

Blood

Blood is a connective tissue composed of red blood cells (erythrocytes), white blood cells (leukocytes), and platelets. It also connects bodily systems by t<u>ransporting nutrients, hormones, and chemical messengers, etc.</u>

<h3>Produces new blood cells and stores lipids</h3>

Bone marrow

Bone marrow is found <u>within the spongy bone</u> which houses the young blood cells until they are ready for use by the body or also called hematopoiesis.

<h3>Capable of strength with stretching and recoil in several directions</h3>

Dense irregular elastic connective tissue

For dense irregular elastic connective tissue, the elastic fibers are arranged randomly. This makes the organ <u>stretchable and</u> <u>flexible in all directions and able to return to its original shape</u>. An example of this is the dermis.

<h3>Tensile strength capable of withstanding stretch in all directions</h3>

Dense irregular collagenous connective tissue

Its fibers are also arranged in random but  with fibrous tissue. It is also <u>flexible and tougher</u> compared to dense irregular elastic connective tissue. It is usually found in <u>fibrous capsule of joints and muscle fascia.</u>

<h3>Vocal folds and ligaments between vertebrae</h3>

Dense regular elastic connective tissue

For dense regular elastic connective tissue, the elastic fibers are <u>arranged in parallel</u>. It enhances the present tensile strength to a specific direction wherein the fiber is oriented.

<h3>Tendons and ligaments</h3>

Dense regular collagenous connective tissue

For dense regular collagenous connective tissue, the collagen fibers are also arranged in parallel. Tensile strength and resistance is enhanced to a specific direction wherein the fiber is oriented. The role of these tissues is to <u>transfer forces to the bone to avoid injury.</u>

<h3>Provides superstructure for lymphatic tissues</h3>

Reticular tissue

Reticular tissue is found <u>mostly with numerous amounts of cells</u>. They are composed of <em>Type 3 collagen fibrils</em> and is <em>net-like</em> in appearance, also called <em>"reticulum" </em>due to the fiber arrangement (<em>reticulin</em>). They act as a <u>scaffold of the organ/s they cover.</u>

<h3>Energy storage</h3>

Adipose tissue

Adipose tissue is composed of fat cells or adipocytes. It also functions to <u>insulate and cushion</u> the body from hard surfaces.

<h3>Epithelial basement membrane sits on this</h3>

Loose connective tissue

Loose connective tissue or<u> areolar connective tissue</u>, contains a <u>lot of cells, ground matter, and spaces in between it</u>, coining the "loose" in its name. Fibroblasts, collagen fibers, and matrix, etc., are found in almost every part of the body. This helps in <u>keeping the organs in place and some slight tough protection. </u>

<h3>Precursor to adult connective tissues</h3>

Mesenchymal tissue

Mesenchymal tissue <u>forms the body’s connective tissues</u>, from bones, cartilage, to the organ systems. It is found <u>abundant in the development of fetal tissues.</u>

<h3>Umbilical cord of the newborn</h3>

Mucous connective tissue

Mucous connective tissue is also found <u>during development of the embryo</u>. Due to <u>mucoproteins</u>, it resembles a mucus-like substance, as in <u>Wharton's jelly found in the umbilical cord</u> and <u>vitreous in the eyeball.</u>

5 0
3 years ago
A researcher has developed two stains for use with seed plants. One stains sporophyte tissue and products blue; the other stains
bearhunter [10]

Answer: The pollen grains will have red interiors and blue exteriors.

Explanation: The pollen grains will have red interiors and blue exteriors should occur.

5 0
4 years ago
What is Science? I hate science so much aghhh
Basile [38]

the intellectual and practical activity encompassing the systematic study of the structure and behavior of the physical and natural world through observation and experiment.


5 0
4 years ago
Other questions:
  • If a patient has br with brp, when should the patient be allowed out of bed?
    6·1 answer
  • The function of glycogen phosphorylase is: question options:
    7·1 answer
  • Porque los alimentos tienen que ser dirigidos antes de entrar a las celulas?
    6·2 answers
  • Which of the following behaviors is not an inherited behavior?
    6·2 answers
  • PLZ HELP ASAP
    11·2 answers
  • I will give brainliest pls help !!Drag each tile to the correct box.
    12·1 answer
  • NEED HELP ASAP
    6·1 answer
  • Tubes which deliver glucose to the plants are:
    15·1 answer
  • Examine the flow chart above depicting the job of a gene known as p53. It plays an important role during the G2 checkpoint of ce
    10·1 answer
  • How do fungi adapt and remain alive??​
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!