What abiotic factor would most likely signal a population of birds that it is time to migrate from north to south? decrease in sunlight
O change in precipitation
O increase in food source
o change in wind direction

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

Discuss the functions of epithelial connective nerviud and muscular tissues