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romanna [79]
2 years ago
11

1. The framework of a human body that provides structure and allowing movement.

Biology
2 answers:
VikaD [51]2 years ago
7 0
The answer is A. skeletal system
Ivanshal [37]2 years ago
7 0

Answer:

a skeletal system

hope it helps :-) :-)

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After examining the fossil record, scientists have determined that scorpions today are much smaller than their extinct ancestors
BabaBlast [244]

Answer: C. scorpions have changed as a result of natural selection

Explanation:

The text tells us that scorpions today are now smaller than they were in the past. This means that the scorpions have changed since then i.e. they have evolved.

The primary reason for evolution is natural selection which refers to a situation whereby only the organisms that are better adapted in their species survive.

The conclusion that can be drawn from this research therefore is that we have smaller scorpions today because they stood a better chance of survival than the larger ones and so survived whilst the larger ones died out.

6 0
2 years ago
Lipids are important to living things for all of the following reasons, EXCEPT that they are
maxonik [38]
<span>hello there hester , i would say needed to form cell membranes</span>
5 0
3 years ago
Are genes sections of carbohydrates that are used for dna
Bumek [7]

Answer:

No

Explanation:

Carbohydrates are a source of energy for the body to use. DNA is your genetic code, it can't be altered unless through sexually reproduction. Genes are your physical attributes that are gained through the combination of your parents DNA

7 0
3 years ago
When chromosomes do not separate you end up with a
dusya [7]

Answer:

The phenomenon of unequal separation in meiosis is called nondisjunction. If nondisjunction causes a missing chromosome in a haploid gamete, the diploid zygote it forms with another gamete will contain only one copy of that chromosome from the other parent, a condition known as monosomy. I think sorry if wrong ;)

7 0
3 years ago
Check your understanding. Which items did you
s2008m [1.1K]

RNA nucleotides form complimentary base pairs with DNA bases.  Hydrogen and sugar-phosphate bonds form and the mRNA is synthesized.

Explanation:

The process of mRNA formed by DNA is called transcription. The genes coding for the protein is present on DNA as a nitrogenous base or nucleotides.

Transcription takes place inside the nucleus with the assistance of major enzyme RNA polymerase. In transcription 5'to3' single strand of RNA is synthesized which is complementary to the 3'to5' strand of DNA. The sequence of DNA has promoter sites which will be recognized and DNA will unzip to form transcription bubble. Several transcription factors and enzyme will be required to synthesize mRNA.

This mRNA after some modification would become primary transcript and pass on to the cytoplasm where protein synthesis will take place.

8 0
3 years ago
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