A land mammal slowly evolves over time to live in the ocean. What kind of traits might it evolve based on its already existing features? a hard shell, claws, and long legs

Gills, scales, and large eyes

feathers, a long neck, and a fast running speed.

Fins, a blowhole, and the ability to hold its breath for long periods of time

Please answer asap! It's worth 90 points!

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

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius

Cladistics is a way of classifying organisms by examining the characteristics of their ancestors and descendants and depicting the relationships in a cladogram. which of the following best describes a challenge in classifying organisms this way? a. there are millions of species on earth, and a cladogram is not a practical means for classifying all of them. b. it is impossible to tell which organisms are most closely related to each other using a cladogram. c. cladograms are detail-oriented and do not provide a useful understanding of evolutionary relationships. d. there is a limited number of ways to organize the information, so most cladograms end up looking very similar.