L 1.4.2 Test (CST): Living Things 4
5
What does stage 4 show?
O A. A spore divides and grows into a pollen grain using mitosis.
O B. A young female cone with fertilized eggs matures into a seed
cone.
O C. Young male cones produce spores using meiosis.
D. A seed that contains an embryo plant grows into a young pine
tree.

Four types of motile cells in human body?

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.

Nephrons, the functional unit of kidneys, are responsible for formation of urine. the sentences describe situations that are the result of problems in the urine formation process. for the nephron shown below, match each situation to the step in the urine formation process where the problem lies.