Answer:
element
Explanation:
we know that helium is a pure substance although helium atoms are sometimes mixed with their isotopes it is still the same element. since there is no other element combined with helium this makes it an element.
Well that's a not easy task. <span>The specialized forecasters analyze near-real-time ground- and space-based observations to assess the current state of the solar environment which includes the areas from the Sun to the Earth and points in between. Space weather forecasters also analyze the pattern of solar activity. </span>
Red blood cells carry a specific type of protein, called hemoglobin, which is able to bind oxygen and release it in other tissues. A nerve cell doesn't have this protein because it doesn't need to bind oxygen. Instead, the nerve cell uses other proteins that help it transmit signals to other cells.
That is copied from “gene expression” article
But all in all, the cells have different structures and different jobs. This means that they are produced for that one job and cannot be made to do another job that they aren’t specifically made for. As well the dna make up will produce these cells specifically and in different cells than the other.
Hopefully this helps some. Have a nice day!
Answer: handpicking method
2. Difference in size.
Explanation: The method in which substances in a mixture can be separated by just picking them with the help of hand from the mixture is known as handpicking method.
It is one of the methods which can be carried out for mixture of dry substances.
As the size of cereal bits and marshmallows is significantly different, he can handpick the larger chunks of marshmallows and separate them from the smaller sized cereal bits.
