Akey difference between green algae and land-based plants is that a. land-based plants don't have vascular tissue and must absorb nutrients directly from the environment. b. green algae don't have chloroplasts and absorb their food rather that perform photosynthesis. c. green algae don't have vascular tissue and must absorb nutrients directly from the environment. d. land-based plants breath in carbon dioxide while green algae consume oxygen.

The correct answer is option C.

Explanation:

Green algae lack the vascular tissues, that is they do not have phloem or xylem for transporting water and nutrients throughout their bodies. They have a thalloid that means they do not have a body divided into root stem and leaves. The thalloid body helps in absorbing nutrients from surroundings.

The land-based plants have xylem and phloem (vascular tissues) to transport water, nutrients, and minerals throughout the body.

Thus, the correct answer is option C.

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.