Which of the above mammals are the most closely related to each other?
a.
the dolphin and the whale
b.
the manatee and the sea lion
c.
the dolphin and the manatee
d.
the manatee and the whale

What is one function of the embedded proteins

Which of the following is not a possible effectof increasimg carbon dioxide levels in the atmosphere ?

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.