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e-lub [12.9K]
3 years ago
9

What is a fossil? You're on word

Biology
2 answers:
ioda3 years ago
6 0
Fossils are the remains or impression of the dead animals and plants that lived in the past.
Lyrx [107]3 years ago
6 0

Answer: a realy old rock with bones presed inside

Explanation:

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You perform an experiment in which chromatin is isolated from sea urchin sperm cells and briefly digested with micrococcal nucle
irga5000 [103]

Answer:

a) DNA fragments associated with histone proteins are all multiple in length (i.e., 260 bp, 520 bp, 780 bp, etc), thereby suggesting the presence of a pattern of organization in the chromatin  

b) it suggests that each unit of organization (ie, each nucleosome) consists of 260 bp associated with chromatin proteins

Explanation:

The nucleosome is considered as the basic unit of chromatin. A nucleosome consists of approximately two turns of DNA wrapped around a core of eight histone proteins (i.e., a histone octamer). The histone octamer consists of two copies of each of the histones H2A, H2B, H3, and H4. Moreover, the nucleosomes are connected together by linker DNA sequences which vary between 10 and 100 bp in length.

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2 years ago
Help will give brainiest thanks and points <br> please and thank you
goldenfox [79]

Answer:

all of the above

Explanation:

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Represents the presence of the rhesus protein on blood.
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<span>Positive Rh factor represents the presence of the rhesus protein on the blood cells.</span> <span>Rh factor or Rhesus factor is used to describe the presence of antigen Rh (D) in the blood.  A person who is, for example, AB Positive (AB+) has the A and B antigens and the Rh(D) antigen, whereas someone who is AB Negative (ab-) lacks the Rh(D) antigen. Antibodies to Rh antigens can be involved in hemolytic transfusion reactions and they increase the risk of Hemolytic disease of the fetus and newborn, so it is important for mother and the baby to have the same Rh factor.</span>
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Why do you think pressurized seeds and spores are a beneficial adaptation for these plants and fungi
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<span>The green plant would be able to photosynthesize, but the fungi wouldn’t. The plants would have cellulose in their cell walls, while the fungi would have chitin.</span>
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If you were analyzing a microscopic model of a freshwater ecosystem, what is one autotroph you might encounter? (1 point)
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Answer:

algae

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