In vertebrates, all neural tissue
a. is induced to become neural tissue by the underlying mesoderm
b. is induced to become neural tissue by the ectoderm
c. is induced to become neural tissue by the neural crest
d. all of the above
e. none of the above

During endocytosis, cells expel what they don't need take in what they need shrink due to loss of water

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.

Aquaternary consumer species would be expected to have a smaller population than a secondary consumer species. select the best answer from the choices provided t f