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.
Heart, kidneys, intestines, thymus, gonads, and adipose tissue.
<span>During the final days of her life, Celeste will likely be in more much pain, and it will be more difficult to control. She will likely not be able to move around on her own, or even speak. She will have difficulty swallowing, and may not be able to eat. Celeste will need help with basically all of her self-care, and activities of daily living.</span>
Weight of the object will increase
Answer:
The correct option is D. Crossing over and independent assortment are the causes of genetic variation.
Explanation:
In the process of meiosis, crossing over is a phenomenon through which exchange of genetic segments takes place among the homologous chromosomes.
The process of independent assortment describes how different genes assort differently during meiosis.
Both the process of crossing over and independent assortment are the basis of the genetic variations seen in the world.
