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liberstina [14]
3 years ago
12

Which nitrogen bases are complementary to each other

Biology
1 answer:
storchak [24]3 years ago
7 0

Answer:

Adenine and guanine are purines, while thymine, cytosine and uracil are pyrimidines.

Hope this helps! Sorry no one answered your question sooner :(

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Classify the following organisms into their respective kindoms 1.yeast 2.penicillium 3.rhizobium 4.mushroom 5.amoeba 6.fish
Fofino [41]

Answer:

1.fungi,   2.fungi     3.monera   4.fungi   5. protista  6. animalia

Explanation:

since, yeast is a fungus , penicilium and mushroom (agaricus) also fall under this catergory due to the <em>presence of mysceliom and hyphae.</em>

rizobium is a <em>bacteria</em> so falls under the kingdom monera

amoeba has <em>locamotory organs</em> hence is a part of the protista kingdom

while , fish is <em>an animal</em> and thus belong to animalia

5 0
3 years ago
The division of human cells consists of a series of events, collectively called ________, or nuclear division, and ________, or
boyakko [2]

Answer:

mitosis; cytokinesis

Explanation:

See https://humanbiology.pressbooks.tru.ca/chapter/4-13-mitosis-and-cytokinesis/

5 0
1 year ago
After chromosomes are formed, during which phase of mitosis do the chromosomes attach to the spindle fibers by their centromeres
lorasvet [3.4K]
4.Metaphase
All of the chromosomes are aligned midway between the spindle poles. A spindle is a dynamic network of microtubules that attaches to and moves chromosomes during nuclear division. Microtubules attach each chromatid to one of the spindle poles, and its sister to the opposite pole.
3 0
3 years ago
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The thymus is the only lymphoid organ that does not ________.
mr_godi [17]
It does not produce hormones
4 0
3 years ago
Dentify the pair of homologous structures
Gennadij [26K]

Answer:

a. maple leaf and oak leaf

Explanation:

Homologous structures are those that have the same evolutionary origin but fulfill very different functions, a good example could be the wing of a bird and the wing of an insect, the wings of birds, are modified front members and the wings of insects are "BRANCHES" modified

In the case of maple and oak leaves they are homologous structures because they have a common ancestor according to their genetic decoding, that is, even if they can look different or behave differently, they are genetically homologous structures.

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3 years ago
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