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UkoKoshka [18]
4 years ago
11

Which of the following is considered a xanthine?

Biology
1 answer:
telo118 [61]4 years ago
7 0
The answer is C. theophylline. Xanthine is a kind of purine base found in many human body tissues and fluids and in other organisms. Theophylline is a kind of methylated xanthine.
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3 years ago
What problem does the chromosome number of various organisms present to evolutionists?
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Chromosome number varies from one organism to another. or example, humans have 46 chromosomes while bacteria have only one chromosome.

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3 years ago
Cellular respiration reactions are catalyzed by ______.
EleoNora [17]
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6 0
4 years ago
Calculating Ecological Footprints
vova2212 [387]

Answer:

1) per capita paper consumed is determined by dividing total paper consumped by population

A) Africa ; population is 1136 x 106 and total paper consumed is 8 x 106 x 103 (here 106 is for million and 103​​​​​ is kg for one metric ton)

=( 8 x 106 x 103 ) /1136 x 106

= 7. 04 kg

= 15. 52 pounds

B) Asia : by using above strategy we get,

= 96. 25 pounds

C) Europe :

= 273. 70 pounds

D) Latin America :

= 96. 29 pounds

E) North America :

= 474. 63 pounds

F) Oceania :

=226. 10 pounds

G)world :

= 121. 82 pounds.

Explanation:

3 0
3 years ago
How does the function of a neuron determine the structure ?
Alenkinab [10]

Answer:

Explanation:

While neurons have a lot in common with other types of cells, they're structurally and functionally unique. Specialized projections called axons allow neurons to transmit electrical and chemical signals to other cells. Neurons can also receive these signals via rootlike extensions known as dendrites.v

6 0
3 years ago
Read 2 more answers
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