Answer:
a. are probably built by different genes.
Explanation:
Although sharks and dolphins are aquatic animals belonging to the vertebrate group, sharks are fish while dolphins are mammals. Sharks belong to the class Chondrichthyes which are fish that have a cartilaginous skeleton. On the other hand, dolphins are mammals (class Mammalia) which are animals mainly characterized by the presence of mammary glands. In consequence, both species are not closely phylogenetically linked, thereby those genes involved in the development of the integumentary system (skin) in both species are expected to be different.
D. All of the above
acid rain damages all of those options
Collagen Fiber. this is the strongest and most common connective fiber; it has tensile strength; its appearance is long, straight, and unbranched; examples: tendons and ligaments. reticular fiber.
Answer: BODY LANGUAGE. Body Language cont’d from The Language of Wolves. In a wolf pack, order is regularly reinforced by displays of dominance and submission through a complex mix of vocal and physical communications. n a wolf pack, order is regularly reinforced by displays of dominance and submission through a complex mix of vocal and physical communications. Wolves employ a variety of non-vocal forms of communication to express and maintain their status,In a wolf pack, order is regularly reinforced by displays of dominance and submission through a complex mix of vocal and physical communications. Wolves employ a variety of non-vocal forms of communication to express and maintain their status,
Explanation: