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3 years ago

2. Nitrogen, as it is found in the ATMOSPHERE, can be used by plants and

Biology

1 answer:

irina1246 [14]3 years ago

8 0

Answer:

false

Explanation:

Although the majority of the air we breathe is N2, most of the nitrogen in the atmosphere is unavailable for use by organisms. This is because the strong triple bond between the N atoms in N2 molecules makes it relatively unreactive. However organisms need reactive nitrogen to be able to incorporate it into cells.

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If the nucleotides 5'-GAT-3' are paired with the nucleotides 3'-CUA-5', the pairing must be __________.

arlik [135]

Answer:

The correct answer is A.) during transcription

Explanation:

The pairing during DNA replication and transcription is a little bit different. During replication, A pairs with T, T with A, C with G, and G with C. In transcription T is replaced by U so when there is nucleotide adenine is present in the DNA sequence than uracil will be added against it as complementary nucleotide in mRNA during transcription.

So here 5'-GAT-3' nucleotide sequence is present in DNA and after transcription the nucleotide sequence will be 5'-CUA-5' because U is added against A during transcription. Therefore the correct answer is A.

3 0

3 years ago

Drag each tile to the correct location.

Ivahew [28]

Answer:

Mitosis and meiosis are similar at the level of writing, and possess a very close mechanism; however, they do not achieve the same result!

Mitosis corresponds to a single "asexual" cell division of somatic cells (almost all cells in the body), and clones two daughter cells from a mother cell, which will be identical, and inherit exactly the same heritage genetic, indeed these two daughter cells will each have an identical karyotype (same chromosomes) and an identical genotype (same alleles) to that of the mother cell.

Meiosis corresponds to two successive "sexual" cell divisions affecting only germ cells; starting from a diploid cell (chromosomes present in pairs), meiosis leads to the formation of four gametes (haploid sexual cells, spermatozoa or oocytes) (a single copy of the chromosomes). Then, during fertilization, two gametes (each from meiosis, in the male and female) come together to form a zygote, in which diploidy will be restored.

The right answers are:

create two identical cells ==> mitosis

create four non-identical cells ==> meiosis

create haploid cells ==> meiosis

creates diploid cells ==> mitosis

occurs in all cels other tha gametes ==> mitosis

occurs in all cells related to sexual reproduction ==> meiosis

Read more on Brainly.com - brainly.com/question/10606970#readmore

Explanation:

5 0

3 years ago

Aquatic ecosystems support more primary producers proportional to their area than terrestrial ecosystems. true or false

Andru [333]

The answer is FALSE.

8 0

3 years ago

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Through which of the following materials do sound waves travel the fastest?

nata0808 [166]

The correct answer is Metal.

Sound waves are vibrations which need medium to propagate. Higher the density of medium, the sound travels fastest. Sound travels fastest in solid than liquid and gas. Therefore, in this question sound will travel faster in metal because metal has higher density than air and water and it will not travel in vacuum as sound needs medium to travel.

7 0

2 years ago

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As a cow grazes on grass how much of the grass is energy is transferred to the cow

pantera1 [17]

Answer:10 % I'm pretty sure

Explanation:

3 0

3 years ago

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