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Zina [86]
4 years ago
11

Embryological evidence suggests that the echinoderms are closely related to

Biology
1 answer:
Bezzdna [24]4 years ago
6 0
Echinoderms, like chordates, are deuterostomes and are therefore thought to be the most closely related of the major phyla to the chordates
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Which vitamins are found in the maximum quantity in these foods, and how do they help us?
kenny6666 [7]

Answer:

Carrot

Explanation:

Orange has more Vitamin C, however Carrot has more Vitamin A RAE, Vitamin K, Vitamin B6, and Manganese.

Daily need coverage for Vitamin A RAE from Carrot is 92% higher.

Carrot has 9 times less Vitamin C than Orange. Orange has 53.2mg of Vitamin C, while Carrot has 5.9mg.

Carrot is lower in Sugar.

3 0
2 years ago
Are the elements anions or cation and what's there new name if they're anions
Anon25 [30]

Answer:

Cations are ions that are positively charged. They form when they lose an electron because they would have more protons than electrons. In your problem you have for example potassium (number three).

Iodine is a cation because it lost one electron. The ion symbol then would be:

I ⁺

So this is your clue. If it has a positive or a plus sign on top, that would make it a cation. Another clue would be if it LOST an electron, then it is a cation.

An anion, on the other hand, is negatively charged, because they gain electrons, making the electrons more than the protons. In your problem, you have Iodine as an example (number one).

Iodine gained one electron and the ion symbol would be:

I⁻

So again that is your clue for anions, they have a negative or a minus sign on top of the symbol. If they GAINED an electron, that would make them an anion.

Naming monoatomic anions is easy. They are named with the suffix -ide at the end. (Cations retain their name). For example Sulfur (number two).

Sulfur is an anion that gained two electrons with an ion symbol of:

S²⁻

So from the name <u>Sulfur</u><u> </u>the name will change into "Sulfide" and its name will now be <u>Sulfide ion. </u>

7 0
4 years ago
Gas Exchange and Transport Oxygen and carbon dioxide are exchanged across the walls of alveoli and capillaries. Chemical propert
spin [16.1K]

The function of the respiratory system is to move two gases: oxygen and carbon dioxide. Gas exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them

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3 years ago
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marin [14]

For AOA the answer is false.

7 0
3 years ago
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The backbone is a characteristic of
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Yₒᵤᵣ ₐₙₛWₑᵣ ᵢₛ .:

_____________________________

Back bone (or vertebral column) is the character of all the species included in .:

Sub-phylum VERTEBRATA

_______of______________

Division CRANIATA

_______of____________

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3 years ago
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