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Nataly_w [17]
3 years ago
7

The term "evolution" is best described as A) a process of change in a population through time B) a process by which organisms be

come extinct C) the reproductive isolation of members of certain species D) the replacement of one community by another​
Biology
1 answer:
Mnenie [13.5K]3 years ago
6 0

Answer: A) a process of change in a population through time

Explanation:

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URGENT PLEASE ANSWER
Sidana [21]
1. Jesi's body is experiencing a reaction to an external stimulus.

<span>2. The parasympathetic nervous system brings the system back to normal after the sympathetic nervous systems signals to release adrenaline.

3. </span><span>As blood pressure greatly decreases, blood flow decreases, and blood pressure drops more.</span>
3 0
3 years ago
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 good vector to genetically alter respiratory cells might be _______.
AnnyKZ [126]
A good vector to genetically altered respiratory cells might be A VIRUS THAT HAS BEEN GENETICALLY ALTERED TO CARRY NORMAL HUMAN DNA.
Gene therapy is a medical method of treatment which uses genes to prevent or treat diseases. The method is used to correct the defects in genes which is causing a disease. In order to insert a normal gene to replace the defective one, a vector, which will carry the gene is needed. The vector that is usually used in this case is a virus, which has been doctored to carry a normal human DNA.
7 0
4 years ago
Which statement best explains what happens during an earthquake?
weeeeeb [17]

Answer:

D

is the answer.

plzz give me brainliest

8 0
3 years ago
How are chromosomes analyzed within a karyotype
Brrunno [24]
The number and appearance of chromosomes in a cell is called a karyotype. A karyotype can only be seen and studied with a microscope. ... Karyotype analysis can reveal abnormalities, such as missing chromosomes, extra chromosomes, deletions, duplications, and translocations.

Link:https://study.com/academy/lesson/karyotype-definition-disorders-analysis.html

Note: This information has been taken out of a website.
4 0
3 years ago
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