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balu736 [363]
3 years ago
6

How can you distinguish between the blastocyst and the gastrula stage

Biology
1 answer:
Usimov [2.4K]3 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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The clear, transparent layer of cells that covers the front part of the eye is called
larisa [96]

Answer:

4 Cornea

Explanation:

The cornea is the white cell covered your eyes

3 0
3 years ago
Match the following terms and definitions. 1. an organism that can make its own food commensalism 2. a symbiotic relationship be
Dmitriy789 [7]

Terms matched with the right definitions.  

1. An organism that can make its own food – Autotroph

2. A symbiotic relationship between two organisms in which one species benefits and no effect is apparent to the other species – Commensalism.  

3. A cell that has a membrane-bound nucleus and/or organelles as its major characteristic -Eukaryote.  

4. The study of organisms that are too small to be seen with the naked eye - Microbiology.  

5.  A disease-causing organism - A germ pathogen.  

6. A one- or few-celled organism with chromosomes; may have characteristics of both animals and plants – Protist.


An autotroph is an organism that produces its own food from simple substances available in its environment. Autotrophs usually use inorganic chemical reactions or light energy in producing their food and are usually the producers in a food chain. Examples of autotrophs are plants and algae.


Commensalism is a type of relationship between organisms of two species where one organism benefits from the relationship and the other organism is not affected by it (neither benefits nor harmed).



5 0
4 years ago
What is the difference between a sound intensity, volume pitch and frequency
Fynjy0 [20]
Sound intensity is the intensity/volume of sound. Frequency is how high or low the sound is.
4 0
3 years ago
Read 2 more answers
Describe how a new mRNA transcript is processed before it leaves the nucleus.
Schach [20]

Answer:

removal of introns, addition of 5' cap and 3' tail to mRNA.

Explanation:

The mRNA is processed before it leaves nucleus. The introns are removed and exons are remain in mRNA. This process is called splicing. The 5' end is attached with a cap and 3' is attached with a polyadenylated tail. Thus mRNA is processed with these process before it leaves the nucleus.

3 0
3 years ago
What is an example of a chemical reaction that would take place in a living organism?
guapka [62]
There are many reactions, like Oxidation and Reduction
8 0
3 years ago
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