A Germ cell aka sex cell mutation can cause down syndrome when theres an extra chromosome d is a mutation caused by inserting or deletion of a nucliotide
1. is c
2. is d
Answer:
Herd immunity
Explanation:
Herd immunity refers to the resistance of a group of people against infection and the spread of a pathogen. It occurs when a high proportion of the members of that group are resistant against a particular pathogenic infection. When an earlier exposure or vaccination of a large proportion of individuals of a population does not allow the pathogen to spread among and infect the otherwise susceptible members of the population, the population is said to have acquired the herd immunity.
In the given example, vaccination of a large percentage of a population protected the susceptible individuals against a particular microbe. This represents an example of herd immunity.
The correct answer is bpa in bottles affects particular glands.
An endocrine disruptor is a chemical which at certain doses can disrupt the normal endocrine function of the organism. The effects of an endocrine disruptor can be quite severe, from birth deficits and cancerous tumours to developmental disorders.
One of the most commonly detected chemicals in the human body is bisphenol A (BPA), a material used in the production of plastics. It is considered an exoestrogen, meaning that it possesses hormone- and estrogen-like properties. These properties affect specific glands of the human body causing reproductive and neurological problems, obesity, diabetes and some types of cancer.
Feedback from estrogen is a mechanism that the human body uses to control the FSH release from the gonads. This is not considered an endocrine disruptor since it is a natural mechanism. In addition, iodine is a chemical element essential for the synthesis of thyroid hormones. Any lack of it is not considered an endocrine disruptor. Finally, calcitonin is a hormone produced in humans by specific cells of the thyroid gland and it is not considered an endocrine disruptor.
Answer:
carbon dioxide, water and solar energy
Explanation:
I'm learning this in my school In science class Hope this helps!
