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ANEK [815]
3 years ago
8

Type the correct answer in the box. Spell all words correctly.

Biology
1 answer:
SSSSS [86.1K]3 years ago
7 0

Answer:

You need to use the scientific method and <u>knowledge of the environment and earth systems</u> in order to work as an environmental scientist.

Explanation:

An environmental scientist works based on the fact that it has the knowledge of the environment and he is aware of the interaction between the environment and other components associated with it.

An environmental scientist study about the effect of environment on plants and animals as well as earth systems to protect, understand and develop research methods.

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Derived from a 6 membered ring. Contains Cytosine, Thymine, and Uracil.
dybincka [34]

Answer:

b. Nucleotides  

Explanation:

Nucleic acids are examples of structures formed from nucleotides. And in relation to the composition of DNA, we have the formation of the largest cellular macromolecule, all formed by nucleotides.

The nucleotide is a group formed by the association of 3 molecules - a nitrogen base, a phosphate group and a pentose glycide. Thus, we may have variations within these ligands, such as: in DNA we have the presence of pentose deoxyribose, while in RNA we have the presence of pentose ribose.

The nucleotides have differences in relation to its nitrogen base, which can be purine or pyrimidine. Purine bases vary in Adenine and Guanine, while pyrimidine bases are classified in Thymine, Uracil and Cytosine. Purine and pyrimidine bases are complementary and each have specific binders. Thus, we have that the purine base Adenina, binds with the pyrimidine bases Timina and Uracila, while the base Guanina binds exclusively to Cytosine and vice versa.

5 0
3 years ago
An organism that reproduces sexually has a diploid number of 30. How many
Strike441 [17]

Answer:

Gamete of organism has a haploid number of chromosomes.

2n = 30

n = 15

A diploid cell containing 30 chromosomes will result in 15 chromosomes in each of the 4 daughter cells after meiosis occurs.

After first nuclear and cellular division (Meiosis I), each daughter cell will only have 15 chromosomes as homologous chromosomes are broken apart at Anaphase I of meiosis I. Chromosomal number is halved. After the second nuclear and cellular division (Meiosis II), each daughter cell will also have 15 chromosomes. This time, instead of the chromosomal number being halved, their chromosomal contents are halved. Sister chromatids are separated at Anaphase II of Meiosis II, resulting in daughter chromosomes each.

Hope it helped!(:

Explanation:

4 0
2 years ago
If your conclusion does not agree with (disproves) your hypothesis:
natta225 [31]
If your findings disproves your hypothesis then your hypothesis is probably wrong.
3 0
3 years ago
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Which statement about matter is true?
Novosadov [1.4K]
C. Matter is anything that is made of atoms and has mass.
6 0
3 years ago
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Many fish species release thousands of eggs during reproduction. Which factor helps keep these fish populations from becoming to
Sophie [7]

two factors that determine range are,  in constant flux as abiotic and biotic factors change overtime Abiotic factors - temperature, rainfall, the presence of geographical structures like mountains and oceans, and large scale ongoing and historical process such as continental drift Biotic factors - past and current presence of other species that provide habitat, food, or competition Ranges are dynamic 

4 0
3 years ago
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