Particles or molecules that are too big to fit through regular pores in the cell membrane, or have to big an electric charge, against the current of passive transport ( lower to higher ).
Answer:
Summary. Stars exist in a range of colors: red, orange, yellow, green, white and blue with red being the coolest and blue being the hottest. A star's color indicates it's temperature, composition and relative distance from earth.Explanation:
Answer:
50000
Explanation:
number of paramecium in 1 gallon of water = 50
number of paramecium in 1000 gallons of water =
1000× 50 = 50000
Answer:
B
the tendency of the body to maintain inner balance despite changes in external conditions
