Chemistry, 27.03.2020 18:24, Maaarii

I need it asp. Why do we look similar to our parents but not identical?

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Children usually look a little like their father, and a little like their mother, but they will not be identical to either of their parents. This is because they get half of their DNA and inherited features from each parent.

Also because each person has its own uniqueness

answered: Vivi4558

we get some gene from our mom and some from our dad

Explanation:

We don't look identical to our parents since we don't get all feature from only one of our parent but get some from our mom and some from our dad. So for example you eyes might look like your dads but nose might look more like your mom's nose. And the same goes for each of your parent since they have adapted their features from their parents and so on.

answered: Guest

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.

answered: Guest

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.

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