Individuals represented by the right end of the dose/response curve (responding to doses between 30 and 40 ppm) are to the chemical. Group of answer choices

a. very insensitive
b. very sensitive
c. relatively insensitive
d. average sensitivity

Option A, very insensitive

Explanation:

A dose response curve measure the effect of a chemical or its toxicity based on the minimum concentration of a chemical that is sufficient to produce lethal effects and hence determine the safe threshold concentration. The unit of measurement is ppm and chemical toxicity is termed as LC50. The categories of toxicity and sensitivity are as follows  

Below 10 ppm – extremely toxic & extremely sensitive

10 -100 ppm – highly toxic & highly sensitive

100- 1000 ppm – moderately toxic and sensitive

1000 – 10,000 ppm – slightly toxic and sensitive

10,000-100,000 ppm- Practically nontoxic and sensitive

More than 100,000 ppm  - harmless.

Hence, option  A is correct

im not in connections yet but i might can you some questions. what grade are you in?

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.