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igor_vitrenko [27]
3 years ago
15

How long does it take for food to digest?

Biology
1 answer:
Whitepunk [10]3 years ago
7 0
24 to 72 hours for healthy people

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Explain how modern classification is different from linnaeus methods, and why scientists changed it
SCORPION-xisa [38]

The answer is that the criteria of classification change with the improved understanding of organisms around us. During the time of Aristotle, not much was known about the living organisms. So, he classified them as he observed. Plants were classified into herbs, shrubs and trees; very much like what’s taught to a second grade student. Animals as Enaima and Anaima based on the presence or absence of RBCs. After him, Carolus Linnaeus tried his hand over classification. He came up with the 2 kingdom classification: Plants and Animals. He considered only a set of morphological and physiological criteria to decide the kingdom to which an organism belongs. It includes presence of cell wall, mode of nutrition, contractile vacuole, locomotion and others. Based on these criteria, he included widely differing organisms into a single kingdom, for example, fungi, bacteria, algae, and higher plants were included into plant kingdom just because they have cell wall as a common aspect. Then came, Ernst Haeckel, who came with a third kingdom of Protista to include unicellular organisms. Copeland gave a 4 kingdom classification segregating unicellular organisms into 2 separate kingdoms based on their nuclear structure. R.H. Whittaker came next introducing the most accepted 5 kingdom classification system. You should understand one thing that man’s knowledge of classifying organisms improved with the improving technologies available to him, which he exploited to very effective extent. Carl Woese gave the 6 kingdom classification and 3 domain system based on the 16S rRNA sequence.

Our understanding of organisms around us is improving day by day and the system of classification will also change further in pace with the improvement in technology.

I hope this helps! :D]

~ Kana ^^

8 0
3 years ago
How is a protein's shape related to its function?​
Leokris [45]

Answer:

"A protein's specific shape determines its function. If the three-dimensional structure of the protein is altered because of a change in the structure of the amino acids, the protein becomes denatured and does not perform its function as expected."

Explanation:

Just finished my research, I hope the answer above can help you

8 0
3 years ago
Do you think it is okay to change the DNA of any species? Why or why not?
olchik [2.2K]

Answer:

ummmm not any species. maybe experimenting with plants or something. but you shouldn't interfere with animal life.

Explanation: they could die or get seriously ill from it

5 0
3 years ago
Three students made different statements about cells and the human body.
Sveta_85 [38]
I would say Diandra, because she provides the most in depth description!
4 0
3 years ago
What is the key relation between DNA and protein? Specify in a single sentence.​
zhenek [66]

DNA is made of proteins.

4 0
3 years ago
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