<span>You can bolt it to wall studs.</span>
<span>An element is a pure substance that cannot be broken down into anything simpler by physical or chemical means.</span>
Claim: Whales evolved from land mammals to water mammals.
Evidence: The first whales evolved over 50 million years. One of the first whales, such as Pakicetus, were land animals with long skulls and carnivorous teeth, much like many adaptable land mammals back then and today.
Mitosis, since it involves the process of splitting into two daughter cells.
