A. is the sun color:yellow
B.is the blue giants color:blue
C. is the white dwarfs color:white
D.is the red giants color:red
E.is the main sequence color: orange
The question is incomplete as it does not have the options which are:
A) eight legs.
B) two pairs of antennae.
C) a sessile lifestyle.
D) an open circulatory system.
E) parapodia.
Answer:
D) an open circulatory system.
Explanation:
In the given question, the characteristics of an organism are given which are:
1. Exoskeleton- outer covering composed of cuticle
2. system of tubes for gas exchange- do not respire but has tubes called trachea from which the air diffuses
3. modified segmentation- segmented bodies
All these characteristics show that the organism belongs to the Arthropods group of animals.
The Arthropods since having trachea for the diffusion of gas, therefore, possess an open circulatory system in which blood does not flow in the vessels but the open cavities in the body.
Thus, Option-D is the correct answer.
The enzyme amylase is the enzyme that matches up to the active site in starch to allow for its break down process. A different enzyme is needed to break down cellulose because amylase would not fit the same way into the cellulose active site in the way that the correct active site would.