QUESTION 13 In a reflex arc, a muscle or gland is considered to be the:
A. receptor
B. integrating center
C. sensor
D. motor neuron
E. effector
F. nociceptor

What is the difference between how ionic and covalent bonds form

Aflame cell is at the end of each tubule of the nephridium malpighian tubules kidneys none of the above

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.