<span>5.Exosphere: 700 to 10,000 km (440 to 6,200 miles)
4.Thermosphere: 80 to 700 km (50 to 440 miles)
3.Mesosphere: 50 to 80 km (31 to 50 miles)
2.Stratosphere: 12 to 50 km (7 to 31 miles)
<span>1.Troposphere: 0 to 12 km (0 to 7 miles)
These are all highest to lowest
</span></span>
The Natural Selections do act on the population of living things,more on a specific trait. The best statement among the options then would be a. the trait is being pass on to the next generation through genetics.Hope this would be of help.
<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.
Answer:B: they lower the activation energy of reactions
Explanation: just took the test
Answer:
Photosynthesis occurs in the membrane of the thylakoid membrane within a chloroplast.