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Flura [38]
3 years ago
11

I NEED HELP QUICK

Biology
2 answers:
g100num [7]3 years ago
4 0

Answer:

hydrogen

Explanation:

Naya [18.7K]3 years ago
4 0

Answer:

Figure 4: Double-stranded DNA consists of two polynucleotide chains whose nitrogenous bases are connected by hydrogen bonds.

Explanation:

I hope this helps! :D

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Natural systems (respiring animals, decomposition, fires, the ocean) contribute approximately 700 giga-tons of Carbon (GtC) to t
mina [271]

Answer:

Around 25-30 gigatons.

Explanation:

Although natural processes do produce much more carbon dioxide than humans, its a delicate balance and all of that carbon dioxide is absorbed back. However, when humans arrived, they disrupted that balance, and even with the relatively small amount it is creating big problems.

7 0
3 years ago
Is dna synthesis apart of creating rna
Kruka [31]
Yes, DNA synthesis is a part of creating DNA.
6 0
3 years ago
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Which discovery supported the endosymbiotic theory?
alexdok [17]

The right answer is A.) DNA in mitochondria .

Eukaryotic cells, with their many intracellular organelles, have long been considered progeny of prokaryotes that would have become more complex as a result of genetic mutations. But from the 1960s, biologist Lynn Margulis proposed an alternative explanation that was first received coldly by the scientific community. His endosymbiotic theory, proposed in a more formal way in a 1981 book, proposes that eukaryotic cells as we know them today would be the result of a series of symbiotic associations with different prokaryotes.

Mitochondria and chloroplasts also have their own DNA that is not trapped in a nucleus, which is also the case with prokaryotes. However, the proteins encoded by this DNA do not cover all mitochondrial proteins. The prokaryote is thought to have lost some genes to the nucleus of the cell, a process known as "endosymbiotic gene transfer". For this reason, mitochondria and chloroplasts are now host-dependent for the synthesis of most of their components.

3 0
3 years ago
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Criminal profiling has some differences to
Tanya [424]

Answer:

Knowledge gain through observation and experimentation.

Explanation:

Science is the systematic study of the structure and behaviour of the physical and natural world through observation and experiment. That knowledge which can be gain through observation and experimentations is considered as scientific knowledge and those knowledge which can be attain through other sources not observation and experiments is known as non-scientific knowledge so we can say that observation and experiments provide scientific knowledge.

8 0
3 years ago
Fermentation and/or anaerobic respiration occurs place in this part of the cell. _____________
Law Incorporation [45]

Answer:

Cytoplasm

Explanation:

Anaerobic respiration occurs in the cytoplasm. Fermentation enzymes are not restricted to specific organelles or cell structures. In contrast, aerobic respiration depends on mitochondria in eukaryotes and plasma membrane in prokaryotes.

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3 years ago
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