Answer:
1. The descendants are Blue whales, and Humans
2. Back bone Lungs , radius and ulna (front limb bones), structures for producing milk
Explanation: It points to the descendants of common ancestors to blue whales and humans, If not please tell me more clearly what you meant by descendants.
They are ineffective against viral infections because viruses can not be treated with antibiotics.
The volume of the unknown solution obtained from the given standard curve is 2.57%
The linear equation produced by the standard curve is :

- y = absorbance ;
- x = concentration in percent (v/v)
Unknown Solution with absorbance value of 0.35 ;
Input the value of y into the equation.

Collect like terms


Divide both sides by 0.136



Hence, percentage by volume of the unknown solution will be 2.57%
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Answer:
The two navy officers shown at left are identical twins. ... Identical twins look so similar because identical twins have the same genetic makeup, meaning, the same DNA (same nitrogenous bases). This is because by they are fertilised by the same egg, making them identical.
Explanation:
This is copied so be careful
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