A complex organism A. doesn't have any tissues,

B. doesn't have any organs.

C. doesn't have any organ systems.

D. is made of many organ systems working together.

because the light is a great source of energy for the plants to survive. (i hope this )

the farther away the object is from the central star (the sun) it's gravitainal pull on the object is weaker when it is farther

explanation:

answer: although many types of viruses can cause a common cold, rhinoviruses are the most common culprit. a cold virus enters your body through your mouth, eyes or nose. the virus can spread through droplets in the air when someone who is sick coughs, sneezes or talks. theres your answer

explanation:

ecological efficiency: % of usable energy transferred as

biomass from one trophic level to the next typical is 10% efficient (90% of

energy is lost),is diagramed as the pyramid of energy flow. then osprey eagle

are tertiary consumer and the shrimp are primary consumer, so to balance

mass of shrimp (1/0.1) / 0.1 = 100 kg