Answer: D. Insects
Fossils that are preserved in the Burgess Shale are mostly the remains of soft-bodied organisms.
So the answer is D because insects don’t really have bones like the rest of the other options. They have exoskeletons which protects their organs and gives them support for moving around.
Answer:
You would need 85.5 g
Explanation:
Molarity=Moles of soluteVolume of solution (in litres)0.25 M=n1 Ln = 0.25 molSo, we need 0.25 mol of sucrose to make 0.25 M solution.Molar mass of sucrose (C12H22O11)=342 g/mol Mass of 0.25 mol sucrose is0.25mol×342gmol=85.5 g
Explanation:
Hope This Helps
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~Zero~
<h2>
Answer:</h2>
Hydroxide ions.
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Explanation:</h2>
- When base reacts with water they form hydroxide ion.
- For example, NH₃ + H₂O ----------> NH₄⁺ + OH⁻
(Ammonia) (Water) (Ammonium) (Hydroxide ion).
- In case of strong and week base, generally weak bases partially reacts with water to produce hydroxide ions. Whereas strong base completely reacts with water to produce hydroxide ions And the reaction between a strong acid and a strong base produces salt and water and reaction is called neutralization reaction as both acid and base get neutralized.
Result: On reaction of base with water gives hydroxide ion.
Gas to solid ( a ) is correct i think