30 !
what is the function of the tissues indicated by the arrow?

a. protection of the inner lining of the bladder
b. contraction of the bladder
c. structural support of the bladder
d. nerve impulse conductor for bladder

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis