A part of the periodic table is shown. A portion of the first two columns of the periodic table is shown. Column one from top to bottom reads three lithium, 11 sodium, and 19 potassium. Column two reads four beryllium, 12 magnesium, and 20 calcium. Which of the following elements is less reactive than the others? Beryllium (Be) Calcium (Ca) Lithium (Li) Magnesium (Mg)

Plants are used for so many things. in your house alone, you can probably look around you and see where plants have been used. for this project, you will identify various uses of plants in your home. directions make a list of objects, products, and any other items around your house where plants were involved in the production of the item. you should have a list of at least twenty items. then respond to the following questions: note: your list of objects and the answers following should be at least 200 words in length. what if plants no longer existed on earth? how would your life be different?

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

Are gametes exactly the same? explain why or why not?