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2 years ago

Which feature do all adult echinoderms have?

Biology

2 answers:

mina [271]2 years ago

7 0

so what is the answer?

Lana71 [14]2 years ago

5 0

The phylum Echinodermata , which contains about 6000 species, gets its name from the Greek, literally meaning "spiny skin." Many echinoderms actually do have "spiny" skin, but others do not. This phylum exists exclusively in the sea, and cannot be found on land or in fresh water. All echinoderms have one thing in common: radial symmetry. This means that the creatures have appendages (or body construction) which point outward from the center of the body like the spokes on a bicycle wheel. Furthermore, these appendages usually occur in multiples of five, although there are a few exceptions. There are several well known members of this group, like sea stars and sea urchins. The radial symmetry is obvious in these creatures.

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xenn [34]

Answer:

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Explanation:

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Sucrose is an example of which macromolecule?

Katyanochek1 [597]

Answer:

carbohydrates

Explanation:

Sucrose is a sugar, and sugars are a type of carbohydrate.

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2 years ago

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Are viruses living organisms

viva [34]

Answer:

No. Viruses are not living organisms.

Explanation:

Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things.

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2 years ago

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A simplified model of protein synthesis is shown here: How might this model be revised to show a more accurate depiction of prot

Nady [450]

Answer:

The correct options are:

Prior to process 1, DNA should copy itself to allow the cell to divide.

Between processes 1 and 2, the mRNA must be modified before leaving the nucleus.

Explanation:

For eukaryotes, the mRNA is made in the nucleus from the DNA. This process in known as transcription. The process of making proteins from the mRNA takes place in the ribososmes of the cytoplasm. This process is known as translation. The mRNA has to be modified before it is transported for translation. Otherwise, the mRNA will be degraded by the enzymes of the nucleus.

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2 years ago

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BlackZzzverrR [31]

Answer:

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3 years ago

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