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Ganezh [65]
3 years ago
9

What is the significance of chitin in arthropods?

Biology
1 answer:
spin [16.1K]3 years ago
6 0
Chitin is a structural carbohydrate that forms their exoskeleton.
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During embryonic development, the vertebral column is replaced by the notochord.
Reptile [31]

Hello! The answer is false.

It is actually the opposite. The notochord is a primitive axial skeleton, and in humans, it disappears. It eventually becomes part of the vertebral column, which is the backbone that we have today.

Hope this helps!

3 0
3 years ago
Sunlight is a form of energy called
Gnom [1K]

Answer:

electromagnetic energy

Explanation:

sunlight is a radiation, from the electromagnetic spectrum we have visible light and ultraviolet radiation whose source is the light

5 0
2 years ago
The cells of plants and animals are similar, except for a few different structures. Which structures are only found in plant cel
Leviafan [203]

Answer:

large central vacuole

cell wall

Explanation:

Let me clear some things up for you. There are two types of cells - Prokaryotes and Eukaryotes. The principle difference between these types of cells are the structure of their genome. In case of prokaryotes, the genomic matter do not have a defined structure, it just kind of floats around in the protoplasm. But in the eukaryotes, the genome is more structured, have all kinds of proteins associated with them, and is surrounded by a two layered sack called the nuclear membrane. Both plant and animal cells have these feature of structured nucleus, therefore, they are both eukaryotes.

Now for the difference between plant and animal cells. the features you mentioned are unique about plant cells, but do not rule them out from being eukaryotes, as the 'true' structure of the nucleus is still there. Cell walls are necessary for the plant cells because plants do not posses an endoskeleton like most of the animals do. The cell wall makes the whole plant rigid so they don't fall apart or appear like a blob. Chloroplast is where photosynthesis happens, so it should most definitely be in a plant cell. Animals don't do photosynthesis so they don't have chloroplasts. Vacuoles are also present in animal cells, but they are much smaller, greater in number, and are known as lysosomes. Functionally they are virtually the same.

7 0
1 year ago
Read 2 more answers
How does biodiversity contribute to the sustainability of an ecosystem?
Westkost [7]
It’s a simple thing really, the more options or “diversity” it’s more likely that it will be more sustainable and things will find a way to survive. Think about it like a video game level, the more tries you have the more likely you are for success
3 0
3 years ago
Some types of gene are more highly conserved than others since their pathways or phenomena are fundamental to the growth and pro
Dmitriy789 [7]

Answer: Sugar metabolism , DNA replication  and lipid synthesis.

Explanation:

The pathways or the phenomenon is very fundamental that takes place in all the living organisms.

These processes are fundamental to life and is vital for the growth and development of the organism. The cell proliferation and growth is also very essential in case of bacteria.

hence, these processes are highly conserved from one species to another species.

4 0
3 years ago
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