The heart is the structure that pumps blood to the rest of the body. It’s composed of and surrounded by four kinds of tissues—co
nnective, muscle, epithelial and nervous tissues. How do you think the four tissue types support the function of the heart? How do the different tissue types support the idea that systems of specialized cells are critical for body functions?
Connective tissue holds the heart in place as the body moves. Muscle tissues and nervous tissues work together to pump the heart, enabling it to push blood through the circulatory system. Epithelial tissue protects the heart when the body moves so that other structures don’t damage it. The different types of tissues are made of different types of cells, and each tissue performs different functions for the body. These facts support the statement that systems of specialized cells are important for all body functions.
<span>Humans—and other large multicellular animals—are made up of four basic tissue types: epithelial tissue, connective tissue, muscle tissue, and nervous tissue. </span>Epithelial tissue<span> consists of tightly packed sheets of cells that cover surfaces—including the outside of the body—and line body cavities. For instance, the outer layer of your skin is an epithelial tissue, and so is the lining of your small intestine.</span> Epithelial cells are polarized, meaning that they have a top and a bottom side. The apical<span>, top, side of an epithelial cell faces the inside of a cavity or the outside of a structure and is usually exposed to fluid or air. The </span>basal<span>, bottom, side faces the underlying cells. For instance, the apical sides of intestinal cells have finger-like structures that increase surface area for absorbing nutrients. </span> Connective tissue consists of cells suspended in an extracellular matrix. In most cases, the matrix is made up of protein fibers like collagen and fibrin in a solid, liquid, or jellylike ground substance. Connective tissue supports and, as the name suggests, connects other tissues.
Muscle tissue<span> is essential for keeping the body upright, allowing it to move, and even pumping blood and pushing food through the digestive tract.</span>
Nervous tissue<span> is involved in sensing stimuli—external or internal cues—and processing and transmitting information. It consists of two main types of cells: neurons, or nerve cells, and glia. </span> All of these tissues are essential in keeping the body running, including the cardiovascular system in which the heart is involved. All of these tissues play a key role in maintaining the function of the heart, whether it be indirectly, or directly, each of these will keep your heart sustained, but without them you wont live long lol. Hope this helped.
Fertilizer contains different types of phosphates and nitrates. When they are used to fertilize large fields, it can be beneficial in the matter of food production. But when it rains those nitrates, phosphates, etc can run off into a river,lake,stream and cause eutrophication .
Eutrophication causes an abundance of plant growth such as algae blooms. Algae blooms can suffocate fish and can have an impact on human health.
Have a good grade, do lots of extracurricular activities, do things that stand out (not bad things, good things), perfect your SAT or ACT (or really close to it)
