Which way should the arrow point in a food chain or web? -
from the consumer to the producer

from the tertiary consumer to the producer

from the secondary consumer to the tertiary consumer

from the tertiary consumer to the secondary consumer

What are four key elements of the study of economics?

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

Which box will not accelerate? 4 newtons 4 newtons 4 newtons 25 kg 4 newtons 15 newtons 10 kg 30 newtons 40 newtons 50 kg 30 newtons 30 newtons