Which one of the following disease is caused by a protozoa? a. Kala-azar
b. Sleeping sickness
c. Rabies
d. both a and b

Brainliest ! which would require more force to move or slow down between a bowling ball and a soccer ball? explain why?

Some substances but not other can cross the (blank) membrane of a cell

Been sitting here trying to take this test and don't know this answer! place the events of a feedback mechanism associated with body temperature in the correct order. ·nerve cells send message from skin to the brain ·body returned to normal temperature around 98.6 degrees f ·temperatures regulation center in the brain sends out signals ·body temperature exceeds 98.6 degrees f ·sweat glands throughout the body activate to cool off skin surface it is a 1 through 5 question in biology!