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balu736 [363]
2 years ago
6

How can you distinguish between the blastocyst and the gastrula stage

Biology
1 answer:
Usimov [2.4K]2 years ago
4 0

Answer:

Blastocyst is an early embryonic stage in mammals otherwise it is a blastula which is followed by development of gastrula. Blastocyst is a hollow ball like structure that develops by repeated cell division from zygote . It is superficially covered by a layer of cells collectively termed trophoblast.

Explanation:

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Oxidising agents *
NNADVOKAT [17]

Answer:

Option A. are mostly non-metals.

Explanation:

Oxidising agents are mostly non-metals because non metals gains electron from the metal during chemical bond and we know that oxidising agent is electron accepter not donar. For example, Sodium is a metal react with chlorine which is a non-metal so the sodium losses electron and this electron is gain by chlorine atom forming sodium chloride. In this example chlorine is a non-metal which gains electron.

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3 years ago
Is someone having 2 different colored eyes (1 brown, 1 green for example) considered a mutation?
____ [38]
Yes, having two colored eyes is considered a mutation
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2 years ago
Gasoline and diesel are examples of __________.
Wewaii [24]
The answer is B, fossil fules
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2 years ago
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Two true-breeding pea plants are crossed. One parent is round, terminal, violet, constricted, while the other expresses the cont
Alexandra [31]

The question is incomplete as it lacks te end part of the question. However, the missing part is as follows:

In the F2 generation, all possible combinations of these traits were expressed in ratios consistent with Mendelian inheritance. Identify the four dominant traits, and enter them in ALPHABETICAL order in the blanks provided. [x],[y],[z],[a].

Answer:

The correct answer is :

x)axial

y)full

z)round

a)violet

Explanation:

True breeding organisms are organisms that carry two same alleles of a particular trait or character either dominant or recessive. In this given case the two breeding plants have four distinct traits, round, terminal, violet, constricted in one parent and wrinkled, axial, white, full in other.

In f1 there would be only dominant alleles for these characters will be expressed, that is already given in the question-

round, axial, violet, and full

The alphabetical arrangement of the dominant alleles are-

x)axial

y)full

z)round

a)violet

3 0
2 years ago
Diffusion is the movement of molecules from and area of __________.
Nady [450]
A is the correct answer
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3 years ago
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