1.
What is the best description of a heterotroph?

an organism that must "eat" food for energy
cells that have nuclei
a single-celled organism
2.
What is the biggest difference between plants and animals?

animals are eukaryotic
plants make their own food
animals are multicellular
3.
What is the best description of eukaryotes?

cells with membrane organelles
cannot make their own food from sun
only composed of single cells

passing a magnet thought the

mixture , because iron gets attracted to magnet .

20 drops hope this

in chemistry, adhesion and cohesion are attractive forces that exist between molecules. they hold the molecules together from each other. they are different in that adhesive force exists between molecules of different substance while cohesive force happens between molecules of same substance.

adhesion between water and glass causes water molecules at the edge of water and glass interface to climb up the wall in a narrow glass tube. this is called capillary action. cohesion is what gives glass its shape and causes water to form a droplet.