Both Aristotle and Linnaeus classified all living things as plants or animals. Today, scientists use a classification system that involves three domains, six kingdoms, and millions of species. Write 5 sentences explaining why this has changed so much ? HELP ME PLEASE!! Thanks In advance

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

If the rna molecule in a human has the nucleotide sequence of guu, this would the amino acid valine would be needed to make the protein. how would this cha process was occurring in a mushroom?

What process creates gametes? a. fertilization b. mitosis c. meiosis