Two states of matter present in the water cycle are described below. state 1: takes the shape of the part of the container which it occupies. state 2: has a fixed shape. which of these statements is correct about the two states of matter?
a. state 1 is solid and state 2 is gas.
b. state 1 is liquid and state 2 is solid.
c. state 1 is solid and state 2 is plasma.
d. state 1 is liquid and state 2 is plasma.

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.

What type of appendages do sponges cnidarians roundworms annelids mollusks arthropods echinoderms and vertebrate have? jointed, not jointed, absent  

Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.