A seed begins the germination process when it gets the , temperature, and oxygen that it needs. As the seed absorbs water, the tiny seedling inside of the seed begins to grow and expand, against the seed coat. The seedling must exert enough to break through the seed coat and through the soil. There must also be enough for the shoot to move against the force of . is the force that attracts all objects with to each other. occurs when a plant turns toward or away from the pull of gravity. Because of geotropism, plant grow toward the pull of gravity as they push deeper into the soil. The plant grow away from the pull of gravity as they break through the soil and the stem grows into the air. Through the forces resulting from pressure and geotropism, plants are able to do a lot of . Plant roots can break apart rock and concrete as they grow the pull of gravity. A seed can break apart rock-hard soil as it expands due to turgor pressure and the of the seedling emerging from the seed coat.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.

not too sure but maybe in the hot springs.

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms