Detailed explanation please!!!!!!

23 When a single manufacturing process yields three products, two of which have a

relatively high sales value compared with the other one, the two higher valued products

and the other one are respectively known as:

A. joint products and by-product

B. joint products and scrap

C. main products and by-products

D. main products and joint product

E. none of the above

The most effective color systems are those that closely match the physical workings of the human eye, since it is ultimately the human eye which experiences the color. The human eye contains a curved array of light-sensing cells shaped like little cones and rods. Colored light is detected by the cone cells. The cone cells come in three varieties: red-detecting, green-detecting, and blue-detecting. They are so named because the red cone cells mostly detect red light, the green cone cells mostly detect green light, and the blue cone cells mostly detect blue light. Note that even though a red cone cell predominantly detects the color red, it can also detect a little bit of some other colors. Therefore, even though humans do not have yellow cone cells, we can still see yellow light when it triggers a red cone cell and a green cone cell. In this way, humans have a built-in color decoding mechanism which enables us to experience millions of colors, although we only have vision cells that predominantly see red, green, and blue.

task;;

1.suppose you are provide with the River habitat ,how would you mark the lotic ecosystem?

2.explain on the nature of the Terrestrial ecosystem laying emphasis on the 4 types of occurrence

3.realte the concept of the Carnivore to the assimilation efficiency?

4.justify the relevance of the always uprightness of the pyramid of energy?

5.justify;Pyramid of number defines the individuals of each species belonging to trophic level in an ecosystem.

6.connect the upright nature to the grassland ecosystem with good explanation

7.elaborate on the Simpson's index in the context of the diversity index?

8.what comes to your mind when you hear of the term Resilience in community ability?

9.how is the formula;P/R =1 true?

10.explain the connection ofedge effect to Ecotone