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Cloud [144]
2 years ago
10

Today, biologists classify organisms primarily by their

Biology
1 answer:
astraxan [27]2 years ago
6 0

Answer:

It's DNA.

Explanation:

<em>DNA</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>most</em><em> </em><em>recent</em><em> </em><em>utility</em><em> </em><em>to</em><em> </em><em>determine</em><em> </em><em>the</em><em> </em><em>origin</em><em> </em><em>of</em><em> </em><em>an</em><em> </em><em>organism</em><em> </em><em>and</em><em> </em><em>it's</em><em> </em><em>powers</em><em> </em><em>compared</em><em> </em><em>to</em><em> </em><em>it't</em><em> </em><em>weaknesses</em><em>.</em>

<em>Nowadays</em><em>,</em><em> </em><em>it</em><em> </em><em>is</em><em> </em><em>the</em><em> </em><em>primary</em><em> </em><em>tool</em><em>:</em>

<em>Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids. </em>

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Are you inferring when you interpret what you have observed?
-Dominant- [34]

I don’t think so because when you are observing you refer to facts but when you infer you have to hypothesize what the outcome will be

3 0
3 years ago
Cell drinking; cell eating. Both are modeled here and are examples of A) osmosis. B) diffusion. C) endocytosis. Eliminate D) fac
N76 [4]

Answer;

-Endocytosis

Explanation;

-Endocytosis includes; phagocytosis, pinocytosis, and receptor mediated: Endocytosis brings substances into the cell, plasma membrane surrounds the substances to be taken in, encloses them in a membrane-bound sac (vesicle) and brings them into the cell

-Phagocytosis: endocytosis of large solid particles (“cell eating”)

-Pinocytosis: endocytosis of extracellular fluid that contains dissolved solutes (“cell drinking”)

-Receptor-mediated: highly selective, ligands bind to specific receptor proteins on the plasma membrane and are then taken into the cell

-Exocytosis: the reverse of endocytosis: substances are removed from the cell; vesicles fuse with plasma membrane and release their contents into the extracellular fluid; important in nerve cells to release neurotransmitter and secretory cells to release cell products (ex. digestive enzymes, protein hormones).

5 0
3 years ago
Which of the following statements is a correct explanation for the observation that all offspring exhibit a phenotype for a part
bearhunter [10]

Answer:

D) Neither of the parental genes is dominate over the other.

Explanation:

<em>Since the trait on the offspring is a mixture from both parent, it means that neither of the alleles from both parents is completely dominant over the other. Instead, each of the alleles contributes equally to the trait of the offspring.</em>

This effectively explains the fact that each trait exhibited by offspring is a blend of the traits from the two parents.

The correct option is D.

8 0
3 years ago
Which of the following is an example of a role programmed cell death plays in maintaining homeostasis?
allsm [11]
4. promoting tissue growth in body cells
8 0
3 years ago
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The diagram shows a normal red blood cell and a shrunken red blood cell, both of which are in salt water.
bixtya [17]

Answer: Water moved from inside the red blood cell into the salt water.

This is because of the osmotic difference between the salt solution and the red blood cell. This means that there is difference in the solute (salt) concentration inside the red blood cell and the salt solution.

Explanation: The salt concentration in the solution is higher than the salt concentration inside the red blood cell, that is, the red blood cell has more water concentration that the salt solution, therefore there will be movement of water from the inside of the red blood cell into the salt solution thereby causing the red blood cell to reduce in size. The movement of water from the red blood cell into the salt solution is to create a balance between the water concentration in the two environments, hence the movement of water from an area of high water concentration to an area of low solvent concentration across the selectively permeable membrane of the red blood cell.

5 0
3 years ago
Read 2 more answers
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