The number of blank an atom has determines what an element it is. a. electrons b. neutrons c. protons d. charges ?

Look at the picture below . what does this picture represent ?

You have 2 plants of the same type and same size, same amount of leaves. one of them is put inside the house and the other one is put in the balcony. you water them saturday, one plant with 200 ml and the other with 400 ml of water. which one of your plants need less water? explain.

Which of the following organisms are capable of self-fertilization? a. plants b. tigers c. humans