Which of the following descriptions related to hormonally active agents (HAAs) is correct? a. HAAs are...

Which of the following descriptions related to hormonally active agents (HAAs) is correct?

	a.	HAAs are forms of pollution in environmental systems that mostly come from humans' excretion of hormones into the water
	b.	HAAs definitely lead to cancer from the mutations that occur from exposure
	c.	HAAs primary hazard is biomagnification within food webs
	d.	HAAs interact with an organism and the mechanisms for regulating growth and development by disrupting normal growth functions.

Blood borne pathogens found in contaminated blood are an example of a ___________hazard.

a.
physical

b.
chemical

c.
radiological

d.
biological
If a specific animal species has a population of 4 million and the population is reduced to only 2000, this is an example of a likely overall reduction in the ____________diversity.

a.
genetic

b.
species

c.
habitat

d.
population

Expert Solution

1. Hormonally active agents (HAAs) are

(d) interact with an organism and the mechanisms for regulating growth and development by disrupting normal growth functions.

HAAs act as endocrine disruptors and block the endocrine functions of growth and metabolism and cause development disorders sometime leading to cancers. They disrupt the mechanism of estrogen compounds where a ligand binds to the receptor and resulting in ligand receptor complex altering RNA transcription and protein synthesis.

2. Blood borne pathogens found in contaminated blood are an example of a BIOLOGICAL hazard.

The three most common bloodborne pathogens (BBPs) are

human immunodeficiency virus (HIV),
hepatitis B virus (HBV), and
hepatitis C virus (HCV).

These blood pathogens are transferred through fluid contaminants such as blood, semen, serological fluids, etc., It is usually transmitted through accidental puntures using needle, blood transfusions, etc.,

3.If a specific animal species has a population of 4 million and the population is reduced to only 2000, this is an example of a likely overall reduction in the _GENETIC diversity

Genetic diversity helps the population to adapt to various environmental changes. It is useful for conservational biology. Loss of genetic diversity leads to reduction in reproductive fitness

gladiator answered 1 year ago

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