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3 years ago

Why humans need organs, like the liver and pancreas, but amoebas do not.

Biology

1 answer:

frez [133]3 years ago

6 0

Answer:

They have no use for it, just like they dont have any type of respiratory organs like lungs.

Explanation:

In the case of nutrition and digestion they obtain food by capturing their prey with their pseudopodia. The food is internalized through a type of endocytosis known as phagocytosis. Nutrients are obtained as the enzymes digest the food inside the vacuole and when they are finished the food vacuole dissolves.

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In this activity, you will determine whether each statement relates to DNA or to RNA. Based on your knowledge of DNA and RNA str

erma4kov [3.2K]

Answer:

it is double-stranded in cells and most DNA viruses - DNA

the nitrogen-containing bases are adenine (A), cytosine (C), guanine (G), and thymine (T) - DNA

it functions by determining the heredity of trait - DNA

the pentose sugar is deoxyribose - DNA

it is double-stranded in cells and most DNA viruses - DNA

Explanation:

-it is double-stranded in cells and most DNA viruses

-the nitrogen-containing bases are adenine (A), cytosine (C), guanine (G), and thymine (T)

-it functions by determining the heredity of trait

-the pentose sugar is deoxyribose

The DNA (deoxyribonucleic acid) is a double stranded molecule that has been found to be responsible for heredity of traits. It is characterized by 3 main components:

A phosphate group
A deoxyribose sugar
Purine and or pyrimidine bases

The purine bases include Adenine and Guanine while the pyrimidine bases include Thymine and Cytosine.

The DNA differs from RNA in that the RNA (ribonucleic acid) is single stranded, contains ribose sugar and instead of Thymine base, it contains Uracil.

4 0

3 years ago

why adenine(A) and thymine(T) are in roughly equal amounts? and why cytosine(C) and guanine(G) are in roughly equal amounts.

d1i1m1o1n [39]

Answer:

A-T and C-G are complements so when there is an A in the nucleotide its complementary nucleotide will be a T, vice versa. This is the same with C-G as well.

5 0

3 years ago

A metamorphic rock interacts with the layers of Earth and melts because of extreme heat and pressure. Which of these is most lik

GaryK [48]

Answer:

When granite is subjected to intense heat and pressure, it changes into a metamorphic rock called gneiss. Slate is another common metamorphic rock that forms from shale. Limestone, a sedimentary rock, will change into the metamorphic rock marble if the right conditions are met.

4 0

2 years ago

Which formula represents an organic molecule? CuSO₄ H₂O H₂O C₁₁H₂O₁₁ AgNO₃

Kitty [74]

Answer:

$C_{11} H_{2} O_{11}$

Explanation:

This is Xylose-glucose which is an Organic sugar - first isolated from wood ( xylose in greek, which it is named after ), and is a monosaccharide free within the aldehyde group. This is a reducing sugar.

You may know that oxygen, carbon, and hydrogen and base organic elements found in pretty much all organic substances.

5 0

3 years ago

Meiosis differs from mitosis in that _____ only occurs in meiosis.'

Masja [62]

two divisions I reeeeeeeeeeeaaaaaaaaaalllllllllyyyyyyyy hopes this helps

7 0

4 years ago