Answer:
Though swamps and marshes generally used in interchangeable manner, there is a difference between them.
Explanation:
Swamps are basically a type of wetland which is dominated by woody plats and other tress, where as in marshes wetland we can generally found herbaceous type of plants.
Swamps vegetation most of the time depends on the fluctuation of water level. but in case of marshes, these are found at the border of lakes or ponds.
Answer:
It is impossible for intact food to pass through the cell membranes since its molecules are too large. Animals can use nutrients and organic molecules when the food is broken down into smaller particles.
Explanation:
Answer:
Exocytosis is the only form of food/waste expulsion that I know of. I am not sure if those things can simply "pass through" a membrane
Answer:
The correct answer would be B) The salt in the body creates a hypertonic solution around cells, which causes water to diffuse out of cells and make them crenate.
Seawater contains a very high amount of salt as compared to what our body can process.
The excess salt creates the hypertonic solution that is, it has a high concentration of salt (solute) as compared to the inside of the cell.
Consequently, water moves out of the cell by osmosis which will result in the shrinkage of the cells.
Removal of water from the cells will worsen the situation by increasing the dehydration in the body.
It is why that seawater is not advisable to drink.
Answer:
Elements that are gases, or are brittle solids, and are poor conductors at room temperature are nonmetals
Explanation:
Elements that are usually gases or solids and are poor conductors at room temperature.
Metals not an option, because they aren't gasses. Most metals have a characteristic lustre and are good conductors of heat and electricity, at room temperature.
Metalloids are unique because they have properties of both metals and non-metals. But, most metalloids are poor conductors of heat and electricity. Metalloids aren't an option either.
Every element has isotopes. They can be gasses, solids,.. Can be good or bad conductors. Isotopes isn't an option either.
Solid nonmetals are not malleable or ductile, but brittle or powdery. Nonmetals are poor conductors of heat and electricity, because electrons are not free to move.
Elements that are gases, or are brittle solids, and are poor conductors at room temperature are nonmetals
