Answer:
True
Explanation:
Everything is made of atoms.
Answer: Hope this helps you!
We still don't know how much the universe extends/how big it is.
Even after many world changing discoveries about the universe, it is still unclear if the universe extends forever or not. There is no proof whether the universe ever ends, or if it is infinite. Ever since the time of the ancient Greeks, and even in the current days it is still unknown. Aristotle, a Greek astronomer developed the basic principles of the universe, and he was pretty much almost right. Even though he did this, it was only 384-322 BC, and back then along with developing the basic idea of the universe, he also inferred that the universe was infinite. Moving on to other astronomers like Aristarchus, Giovanni Cassini, Jean Richer, Heinrich Wilhelm Olbers, they all discovered something new in the field of astronomy, however, none of them, even if they inferred if space was infinite or not, nobody ever found out whether the universe had an end. Nobody was ever able to solidly support their claims whether the universe was never ending or not.
Answer:
Circulatory system remove waste from the cell and provide clean blood to the cell.
Explanation:
During cellular respiration, lungs inhale oxygen which stored in the alveoli. The red blood cells contains hemoglobin that carries deoxygenated blood containing carbondioxide from the cell in the veins to the heart and unload this carbondioxide gas in the alveoli of the lungs and load oxygenated blood having oxygen from the alveoli through capillaries in order to provide oxygen to the cells that is necessary for the survival of humans. Platelets are the type of cells that helps in blood clotting whereas white blood cells provides immunity against pathogens.
Answer: For flowering plants, fertilization occurs through a process known as double fertilization. Unlike most plants, double fertilization enables the new seed to grow into a new plant and have a food source to begin growing. Double fertilization occurs within the female part of a plant, the pistol.
explanation: When pollen is formed by the anther, or male part of a plant, it will blow in the wind or attach to an organism that carries it to the top of the pistol, known as the stigma. Once the pollen attaches to the stigma, the pollen germinates and forms a pollen tube that extends into the ovary. Once formed, two sperm cells will be released and fertilize both the egg and the two polar nuclei of the plant to form the zygote and endosperm, respectfully.
No because they need water which comes from rain. Phototropism is the growth of an organism which responds to a light stimulus.