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Oksi-84 [34.3K]
3 years ago
13

The best classification system is that which most closely

Biology
1 answer:
Nataly_w [17]3 years ago
6 0

Answer:

c.reflects evolutionary history.

Explanation:

The best classification system in biology is that that reflects evolutionary history, this is because more developed animals evolved from ancestors, this means that little modifications on the DNA happened over the course of million of years that created the animals that we know today, so this little differences would be relfected on a classification system.

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Protists are very diverse, and many different classification schemes have been used to define relationships between the protists
andrey2020 [161]

Answer:

D. heterotrophic by ingestion, pseudopods

Explanation:

Protists are generally classified  as all eukaryotic organisms that are not plants, animals or fungi. Example is amoeba, paramecium etc.They may be unicellular or multi cellular in nature.Most exist in colonies.

Their mode of nutrition can be photosynthetic or hetrotrophic. Hetrotrophic  protists   can be divided into  phagotrophs and osmotrops/saprotrophs. The phagotrophs  makes use of the cell body to engulf the food materials as  in amoeba ,carry out extracellular digestion before swallowing it.

Osmotrops absorbed dissolved food from surrounding liquid environments directly. (Some photosynthetic protists can also be heterotrophic.

Amoeboid movement is the mode of locomotion of protists and some  other eukaryotes. It involved the protrusion of cytoplasm, which exert pressure on the cell membrane to form pseudopodia and  the posterioly  evolved  <u>Uropods. </u>

<u />

<u>  </u>

<u>Sol-gel theory has been proposed to expalin this movements, The ectopalsm of amoeba is gelly-like , while the endiplams is less viscpus   and said to be sol. The interchange of the cytoplasmic fluis between the endo-and ecto plasm gives the SOL-GEL propulsion of the protopalms for the amoebic moveemnts .</u>

<u />

<u>The false feet(psuedopodium) drags the amoeba  along in the direction of the flow of the cytoplasm.</u>

Therefore option D is  the right option

4 0
3 years ago
When a person is dehydrated, his or her iv fluids?
Lapatulllka [165]

When an individual is dehydrated, his or her intravenous fluids should be isotonic, because either a hypertonic or hypotonic IV would both cause damage to the individual’s red blood cells. Isotonic solutions are used: to increase the EXTRACELLULAR fluid volume because of blood loss, surgery, dehydration, fluid loss that has been loss extracellularly.

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3 years ago
You can be infected with a virus and not even know it.<br> a. True<br> b. False
Alex Ar [27]
You can be infected with a virus & not even know it & that is true
3 0
3 years ago
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4. A small population of chimpanzees lives in a habitat that undergoes no changes for a long period.
guajiro [1.7K]

Genetic drift is the dramatic almost sped up process of natural selection due to the untouched habitat the species I lives in. Genetic drift is characterized by the changing in alleles, whether more or less, natural selection could care less as long as they're creating diverse populations.

7 0
3 years ago
How many elements in nature are there and what are they
bija089 [108]

Well there's Water, Earth, Fire, and Air. Not quite sure how this would be a school question. But here it is.

8 0
3 years ago
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