WSU Biology 106 E Study guides, Class notes & Summaries

WSU Biology 106 Exam Questions AND CORRECT DETAILED ANSWERS Which of the follow statements concerning the is NOT correct? a) in the most-recent 550 million years Earth has experienced five mass-extinction events b) approximately 250 million years ago all of the continents were coalesced in a single, giant, super continent c) the first living organisms were Prokaryotes d) oxygen started accumulating in Earth's atmosphere with the invasion of land by plants approximately 400 million yea...

WSU Biology 106 Exam 1 Questions And Aswers Three basic plant organs - ANSWER- roots, stems, leaves roots - ANSWER- Absorbs water and minerals from the ground. Anchors plant in ground. Stems - ANSWER- Carry substances between roots and leaves; provide support for plant; holds leaves up to sunlight leaves - ANSWER- The main photosynthetic organs of vascular plants. Nodes - ANSWER- the points at which leaves are attached internodes - ANSWER- the stem segments between nodes axillary bud -...

WSU Biology 106 Exam 3 Questions Marking Scheme Spongocoel - ANSWER- the large central cavity of sponges. water enters the spongocoel through tiny pores called ostia and it exits through the large opening called the osculum. spongocoel is lined with choanocytes which help to create a current in the water. Spicule - ANSWER- structural elements found in most sponges. They provide structural support and deter predators. Large ones are called megascleres while microscopic ones are calle...