Muscles in animals are often found in pairs, because

a. muscles can only pull.

b. muscles need to be able to both push and pull.

c. muscles can only push.

d. muscles can only produce a force as they relax.

During urine production, what happens if the water content of the blood is too low? A. Membrane channels are produced in the cells of the collecting duct. B. The pituitary gland stops secreting ADH. C.

What pigments made of?

Is the muscular system diffrent from a girl and boy

The northeastern region of Asia receives heavy amounts of precipitation and a wide range of temperatures every year. The average amounts of precipitation and average temperatures do not change very much from year to year.

Jenny measures the outside temperature as 16 degrees celcius, 61 degrees Fahrenheit. she observes precipitation falling from the clouds in a solid form. what type of precipitation is jenny most likely observing. A) hail B) rain C) sleet D) snow

A substance that form hydrogen ions when dissolved in water is called a?

A red and white snapdragon are crossed, and their offspring is pink. This is an example of

Around the Salt Lake, what is the geologic age of the area and what type of geologic unit is found there?

The cell walls of fungi differ from those of plants and protists because the cell walls of fungi O A. are composed of cellulose. O B. are composed of peptidoglycan. C. are composed of chitin. D. contain chlorophyll.

In module 1 you identify which species of lizards were most similar to one another based on