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Gre4nikov [31]
3 years ago
11

What structures do both Eukaryotic and Prokaryotic cells share?

Biology
1 answer:
sineoko [7]3 years ago
6 0

Both prokaryotic and eukaryotic cells have structures in common. All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. The plasma membrane, or cell membrane, is the phospholipid layer that surrounds the cell and protects it from the outside environment.

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An X-linked gene produces spots on some platyfish. All platyfish have an autosomal repressor that inhibits the expression of the
Svetach [21]

Answer:

The correct answer is - The Dobzhansky-Muller Model.

Explanation:

The Dobzhansky- muller model is a model that explains about how the natural selection influences speciation or reproductive isolation in a specific process when hybridization takes place between 2 species of an organism.

The offspring that produce through this process is an incompatibility with other species of origin. In the given question, spotted platyfish that arise due to the X linked gene exhibits the Dobzhansky-muller model.

Thus, the correct answer is - The Dobzhansky-Muller Model.

8 0
4 years ago
Pepsinogen is an:A) inactive precursor to the enzyme pepsin that digests proteins in the stomach. B) active enzyme that is relea
sasho [114]

Answer:

A. INACTIVE PRECURSOR OF THE ENZYME PEPSIN THAT DIGESTS PROTEINS IN THE STOMACH.

Explanation:

Pepsinogen is the inactive precursor of pepsin produced by the chief cells of the stomach lining. The stomach walls are lined by majorly two types of cells; the chief and the parietal cells. Chief cells secretes pepisinogen and parietal cells secrete hydrochloric acid in the stomach lining. The chief cells upon the signals of increased protein substance in the stomach produces pepsinogen which upon it release, it is activated to the active enzyme Pepsin by the hydrochloric acid from the parietal cell. Hydrochloric acid provides the acidic environment needed for the action of pepsin in the stomach. The pepsin begins the digestion of proteins into small amino acids in the stomach,

6 0
4 years ago
How does exercise affect a person's body and homeostasis?
nexus9112 [7]

Answer:

In explanation.

Explanation:

-Exercise effects on the person's body and homeostasis.

Exercise stimulates the sympathetic nervous system and will induce an integrated response from the body; This response works to maintain an appropriate level of homeostasis for the increased demand in physical, metabolic, respiratory, and cardiovascular efforts.

-The Effect of Exercise on Homeostasis

1. Increased Oxygen Consumption.

2. Increased Oxygen Delivery.

3. Increased Body Temperature.

4. Increased Release of Carbon Dioxide.

5. And more.

-More information in this link (if you are looking for homeostasis effects): https://www.livestrong.com/article/369714-how-does-the-body-maintain-homeostasis-in-response-to-exercise/

-More information in this link: https://www.ncbi.nlm.nih.gov/books/NBK482280/

7 0
3 years ago
Why is cartilage a good tissue of choice for the respiratory structures of the larynx, trachea, and bronchi?
Brrunno [24]

Answer:

Cartilage is a type of connective tissue formed of two types of cells, chondrocytes and chondroblasts, and an abundant, highly specialized and vascular extracellular matrix. It is a good tissue of choice because it has the function of supporting soft tissue (tracheal rings, for example), lining the joint surfaces of bones, and promoting the formation and growth of long bones.

Hyaline cartilage is the most common cartilage in the human body. It has a cool translucent bluish-white color and is responsible for the formation of the temporary skeleton in fetal development until this skeleton is replaced by bone tissue. Found mainly supporting the nasal passages, the trachea, and the bronchi, at the ventral end of the ribs and covering the articular surfaces of the long bones.

6 0
3 years ago
What type of body shape and tail shape do the triggerfish and hawkfish have? select one:
Dima020 [189]
Triggerfish and hawks fish. They have depressed body shape and their tail is diphycercal. Their tail shape gives them manoeuvrability and their body shape allows them to fit into small places on the reefs which makes them good for adaptations.
Shark fish; they have fusiform body shape and heterocercal tail shape and their good adaptation help them to be top predators and need speed to hunt down their animal.
Stingray; they have depressed body shape and diphycercal tail shape. Their good adaptation helps them to timid fish who feed and hide along the bottom.
3 0
4 years ago
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