What are four groups of organic compounds found in living things

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.