Some coral polyps within a coral reef obtain energy by
consuming plankton and small fish. Others rely on a
relationship with tiny algae. These algae live within
coral polyps. They use sunlight to make sugar for
energy. That energy is transferred to the coral polyp
Coral polyps are

Building glycogen from glucose molecules is an example of what

(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.

Which of the follow describes a disadvantage secondary sources have compared to primary sources?