<span>10% rule (efficiency between trophic levels): limits how long an ecosystem's food chain can be
Predator/prey
cost benefit analysis (i.e. foraging) -- cost is risk of being eaten or
killed along the way, benefit is energy/nourishment obtained: limits
distribution of predator v. prey
Immigration/Emigration with other populations and ecosystems
Island
biogeography: size of land and distance from another
population/ecosystem (mainland): limits population size and variability
on island</span>
        
             
        
        
        
Each organ of the body produces pangenes which travel through the blood to the reproduction organs to be given to offspring. This is of course false as proven by scientists.
 
        
             
        
        
        
Answer:
I think that it is closest to the sun.
Explanation:
it is the second closest planet to the sun.
 
        
                    
             
        
        
        
Answer:
Motion is a change in position measured by distance and time. Speed tells us the rate at which an object moves.
 
        
                    
             
        
        
        
A plant was placed in water containing black dye. After 24 hours the
plant was removed and sections were taken from the root and the
stem. In the root, cambium part will get stained and in the stem, cortex will be stained from dye so the correct option is D. 
<h3>
What is cambium and cortex in plant root and stem?</h3>
Cambium is a layer of continuous dividing cells between xylem and phloem tissues which is responsible for the secondary growth of stems and roots. A cortex is an outer layer of a root or stem in a plant, located below the epidermis but outside of the vascular bundles.
The conduction  (uptake) of water in a plant stem takes place through the xylem. 
For more details, regarding stem and root anatomy, visit:
brainly.com/question/9882176
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