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3 years ago

Which of the following lists represents cell structures that are found in both animal and plant cells?

Biology

2 answers:

Lubov Fominskaja [6]3 years ago

6 0

Answer:

three features that are found in almost every cell

plasma membrane , nucleus and cytoplasm.

Animal cells and plant cells have features in common, such as a nucleus, cytoplasm, cell membrane and mitochondria. Plant cells also have a cell wall, and often have chloroplasts and a permanent vacuole.

rosijanka [135]3 years ago

3 0

Answer:hope this might help

plant cells have cell wall,has a large vacuole,cytoplasms is less dense,lysosome is absent.

animal cells don’t have a cell wall , has small or no vacuole,cytoplasm is more dense,lysosome is present.

Explanation:

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bixtya [17]

Answer:

Explanation:

It depends if number is more than 5 or 5 it will change and if it is less than 5 then it will be same

4 0

4 years ago

A _____ is a non-moving object responsible for the indirect transmission of disease.

ivanzaharov [21]

A fomite is a non-moving object responsible for the indirect transmission of disease.

Fomites are inanimate objects involved in the indirect contact transmission of pathogens. These objects include a whole range of items mostly found in indoor environments.

When pathogens such as viruses and bacteria come in contact with these objects through various human and animal activities such as sneezing or coughing, use of toilets etc; these pathogens remain active on these objects and can then cause disease when others come in contact with these objects.

<h3>How do fomites transmit infectious agents?</h3>

Some diseases are more likely to be transmitted by pathogens than others. However, several factors can influence whether bacteria on carriers are successfully transferred to humans.

type of bacteria or virus on the carrier
number of bacteria or viruses leading to infection
room temperature
room humidity
carrier porosity.

Sneezing and coughing can transfer bacteria to surfaces through droplets released by the sneeze or cough itself, or by bacteria from a sneeze or cough getting on the hands and coming into contact with a bacterial carrier.

To learn more about fomites from the given link

brainly.com/question/17184820

#SPJ4

5 0

2 years ago

Menstruation does not occur if the

Dmitrij [34]

Menstruation does not occur if the D) egg is fertilized.
If you are pregnant, you don't menstruate.

8 0

3 years ago

With the mapping of the human genome and the development of karyotypes to predict genetic abnormalities, there is a growing need

Butoxors [25]

Answer: <u><em>Human Genetic Variation</em></u>

7 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