"Passive transport<span> is a movement of biochemicals and other atomic or molecular substances across cell membranes without need of energy input. </span>
There are four different types of passive transport: diffusion<span>, facilitated </span>diffusion,filtration<span> and </span>osmosis." - Google
<span>Cattle and sheep are exposed to lead and zinc when these poisons are in the grass/soil.
Cattle and sheep graze on the grass, and thus they intake these minerals, such as lead and zinc when they come in contact with grass or earth they may eat along with grass. Thus they are exposed to them via eating.
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Answer:
Please see below
Explanation:
The physiology of the brain is closely related to how we think and feel. The limbic system in the brain, for example, is the center of all our emotions. Understanding how this part of the brain functions will greatly help in understanding the psychology of the human being. There are certain hormones that have an affect on our moods and behavior so it is important to gain knowledge of physiology and genetics in order to grasp the science behind emotional responses, memory etc.
Answer:
The correct answer is the endocrine system.
Explanation:
The sympathetic division of the autonomic nervous system and the endocrine system are the two prime systems that take part in the stress response.
At the time of acute or chronic stress, the endocrine system first makes the hypothalamus to discharge CRH or corticotropin-releasing hormone into the bloodstream. The release of CRH further makes the anterior pituitary to discharge ACTH or adrenocorticotropic hormone into the blood. This further stimulates the adrenal cortex to discharge cortisol, that is, one of the glucocorticoid hormone into the bloodstream.
The cortisol finally makes the organs and tissues present within the body to effectively cope up with the initial stress stimulus.
