he coral reef ecosystem is full of interactions among organisms. Large fish called barracuda feed on smaller fish called parrot fish. The parrot fish feed on algae. Which of these living things would be responsible for releasing oxygen from the process of photosynthesis?

Why is it important to reduce the number of chromosomes in half when forming gametes for sexual reproduction?

Select the correct answer from each drop-down menu the images show fossils of a modern bird and two extinct organisms (a tyrannosaurus rex and an archaeopteryx). based on the structure of the three organisms, it can be concluded that the archaeopteryx and bird have wings, while dinosaurs have limhe se it can be concluded that

Choose the best definition of allele. a. one of several possible versions of a gene, which each produce a different phenotype b. an organism that's purebred for a given trait c. the process of fertilizing a plant with pollen from another plant d. a set of genes that are located on the same chromosome and so are tightly linked