Answer: true
The cause of a disease is also called etiology. The cause must happen before the disease develop. Without the cause, the disease shouldn't appear too.
This makes the research to determine a cause of disease have to take the examination in multiple times. A research that takes one time data like cross-sectional won't show causation.
Answer:
Universe
Explanation:
This should go to physics category
The big bang theory is derived from the observed universe, and the microwave background signal that arrived to earth...
Decomposers would be found on the lowest level.
The correct answer is C
the photoreceptor is represented by the rods and cones, the receptor neurone is the bipolar neurone in the retina, in the brain the multipolar neuron in the retina synapses with a neuron in the geniculate nucleus that sends impulses through the third cranial nerve
The answer is C.<span>saguaro cactus and sagebrush both needing water in the desert.
they are competing for water D is parasitism A is </span><span>a commensal relationship</span><span> and B is mutualism </span>