In order to compare and contrast different organisms, scientists use a classification system that sorts organisms into categories. the broadest category used for sorting is called a kingdom. the least broad category is called a species. approximately how many different species of flowering plants have been identified by scientists thus far?

(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 soil would most likely be found in the arctic? andisols gelisols histosols spodosols

Explain how mendel kept his pea plant from self pollination