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Angelina_Jolie [31]
3 years ago
9

During which time frames was there the greatest rate of change in atmospheric C02 concentration

Biology
1 answer:
bija089 [108]3 years ago
4 0

Answer:

7000 PPM

Explanation:

7000 PPM i'm pretty sure

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Which of the following describes the embryonic period? the period during which the zygote moves down to the uterus and begins to
muminat

Answer:

Option (2).

Explanation:

Zygote is formed by the fusion of the male and female gamete during the process of sexual reproduction. The zygote undergoes further development inside the female womb.

The embryonic period starts from the third week after the conception. The important organs and structure development occur during the embryonic period. The formation of three germ layers occur in this period.

Thus, the correct answer is option (2)

6 0
3 years ago
Which property of water molecules explains the other properties listed below
ivolga24 [154]

Explanation:

A. Adhesion

plzzzz mark me brainliest if it helps you then

8 0
2 years ago
Researchers noted that when a lysine residue on a histone is acetylated, its side chain becomes neutral in charge. Combined with
lesantik [10]

Answer:

The correct answer is A) Histone deacetylation generally decreases gene expression.

Explanation:

Histones are the proteins that are responsible for the condensation of chromatin, which is directly linked to the capacity that a gene has to be expressed. The more condensed a gene is, the less expressible it becomes.

In order to regulate the gene expression, histones can suffer from many modifications that can change their conformation and the expressiveness of specific genes.

<u>Histone acetylation is linked with an increase of gene expression; while deacetylation and methylation decrease gene expression.</u>

3 0
3 years ago
You have a rectangular block of wood measuring 4 cm long, by 3 cm wide, by 3 cm high. What is the volume of this block of wood i
soldi70 [24.7K]

Answer:

36 cm

Explanation:

4x3= 12

then,

12x3= 36 cm

4 0
2 years ago
Why is it important that a scientist be both very logical and very creativity
just olya [345]
It is important to be logical so that you do not end with an impossible conclusion/solution/answer, but you must be creative so that you can think of different ways to try things to get the result you need/ a new result.


Hope this helps!
8 0
3 years ago
Read 2 more answers
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