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lara31 [8.8K]
3 years ago
5

When does the embryo form ?

Biology
2 answers:
ryzh [129]3 years ago
6 0

Answer:

During the first two weeks (the pre-embryonic period) the embryo moves through the uterine tube to the uterus where it will implant. The differentiation that establishes the organ systems takes place between 3 and 8 weeks in the first 8 weeks following fertilization (the embryonic period).

Explanation:

JulijaS [17]3 years ago
3 0

Answer:

First, the zygote becomes a solid ball of cells. Then it becomes a hollow ball of cells called a blastocyst. Inside the uterus, the blastocyst implants in the wall of the uterus, where it develops into an embryo attached to a placenta and surrounded by fluid-filled membranes.

Explanation:

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Earth's climate systems are driven by the electromagnetic radiation from the sun, as wells as its reflection, absorption, storag
ivann1987 [24]

Answer:

(A) True

Explanation:

The sun is producting the electromagnetic radiation which is the primary energy source on Earth and the driver of the entire climate system.

In general the sun is the source of energy that drives all life on Earth. This energy governs the weather, ocean currents and the hydrological cycles.

Without the continuous influx of sunlight and heat, life on Earth would cease to exist. The sun sets off the hydrological cycle, causing it to constantly evaporate into the atmosphere, from which it falls back to Earth.

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3 years ago
How are plant cells different from animal cells?
Aleksandr [31]

Answer:

Answers are as follows

A

C

D

Explanation:

8 0
3 years ago
In order for sharks to maintain a concentration balance with it’s environment, a
Ksivusya [100]

Answer:

B. retain its urine in it’s blood stream

Explanation:

Sharks are cartilaginous fishes that lives in the ocean. Oceans are always salty, hence organisms need to maintain a salt-water balance between their internal and external environment because of osmosis. Sharks are able to maintain this by ensuring that the amount of solutes in their internal environment is as much as that in their external environment.

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4 0
2 years ago
As pressure _____, volume of an object tends to ______
AlekseyPX

Answer:

As pressure increases, volume of an object tends to decrease.

Explanation:

6 0
3 years ago
1) Glycogen phosphorylase catalyzes the removal of glucose from glycogen. The ∆G°’ for this reaction is 3.1 kJ/mole 1. Calculate
Andru [333]

Answer:

1. G° = -RT ln (G1P/P)

3.1 = 8.314 × 310 × ln (G1P/P)

3.1 / 2577.34 = ln (G1P/P)

0.0012 = ln (G1P/P)

0.0012 = (log G1P/P)/log 2.71828

0.4342 × 0.0012 = log G1P/P

0.00052 = log G1P/P

G1P/P = 10^0.00052 = 1.0012

P/G1P = 1/1.0012 = 0.9988

2. The cleavage of glycogen phosphorolytically is beneficial for the cell to conduct the process as the discharged glucose is phosphorylated. A general hydrolytic cleavage would give rise to only a glucose, which has to be phosphorylated again with the help of ATP.  

Another merit of phosphorylated glucose is that it comprises the negative charge and cannot diffuse out of the muscle cell. Thus, the reaction will not be at equilibrium under the physiological conditions and always encourages the generation of the products. The formation of products will amend the change in free energy in such a manner that the reaction will always carry in the forward direction.  

3. Greater the ratio of [Pi]/[glucose-1-phosphate], higher will be the relative rate of glycogen phosphorylase in comparison to the phosphoglucomutase as the transformation of Glu-1-P becomes slow because of lesser accessibility of substrate.  

4 0
3 years ago
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