The correct answer is: sea stars
All animals listed above are invertebrates. One of the characteristic of invertebrates are that they are protostomes with the exception of Echinodermata (sea stars). The difference between protostomes and deuterostomes is in their embryonic development (orgin of mouth and anus).
In protostomes the mouth forms first: the oral end of the animal develops from the first developmental opening. On the other hand in deuterostomes the first opening (the blastopore) becomes the anus, and the oral end of the develops from the second opening.
Humans are also deuterostomes.
These <span>large leaves of ferns that show multiple venation are called fronds.</span>
The warmth and redness of the surrounding area of the cut is due to the immune system.
Blood carries white blood cells, which attacks pathogens (Cause of infection)
The surface become red and warm as that is a conjugating area of blood.
Answer:
The correct answer would be number 2
Explanation:
Each double bond in carbon dioxide represents two pairs of electrons which are shared between the carbon and oxygen atoms.
<h3>What is an Electron?</h3>
This refers to a subatomic particle which has a negative charge and is involved in chemical reactions.
Each double bond in carbon dioxide represents two pairs of electrons which are shared between the carbon and oxygen atoms so as to enable them achieve an octet configuration.
Read more about Electron here brainly.com/question/860094
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