Answer:
a
Explanation:
Gnetophya
Nutrients from fertilizers, such as nitrogen and phosphorus, can be harmful to aquatic ecosystems primarily because they promote excessive growth of algae and aquatic plants. Hence option b "The increase in algae population reduces oxygen in the water" is correct.
This excessive growth is known as eutrophication. The process unfolds as follows:
Nutrient Input: Fertilizers with nitrogen and phosphorus are often utilized in residential and agricultural settings. These nutrients may be introduced into surrounding water bodies by runoff from these locations.
Algal Blooms: Nutrients function as fertilisers for algae and aquatic plants, causing algal blooms. Algal blooms are therefore created as a result of the fast growth in the population of algae. These blooms can completely cover the water's surface, turning it green or murky.
Oxygen Depletion: The process of decomposition consumes oxygen when the algae and aquatic plants die and degrade. An higher need for oxygen results from the large amount of organic material from the deceased organisms. As a result, the amount of dissolved oxygen in the water may decrease.
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B) Salt in the bloodstream causes fluids in the blood to leave and go to surrounding cells, due to osmosis.
C) People that take in too much salt will drink more water to balance out the salt, which raises blood pressure.
D) Extra salt solidifies in the bloodstream and blocks the blood vessels, causing them to narrow, and blood pressure to go up.
The right answer is A) Salt in the bloodstream causes fluids to enter the blood from surrounding cells, due to osmosis.
The circulatory system of the body is a highly flexible vascular system, which has the ability to open and distend new capillaries and veins in order to cope with an increase in fluid volume.
The term "Higher blood pressure" implies that an excess of salt leads to the retention of additional fluid within the arterial circulatory system, which would cause an increase in blood volume and add pressure to the walls. arteries.
High blood pressure is developed when someone takes excess of salt as salt in the bloodstream causes fluids to enter the blood from surroundings due to osmosis.
Further Explanation:
Osmosis is the process of movement of concentrations through a semi permeable membrane from lower concentration to higher concentration. When salt enters the blood stream, water draws out of all the cells through osmosis.
Diffusion is the process of movement of concentrations from an area of high concentration to low concentration. Diffusion is important process for living things as the gaseous and liquid substances move in and out of the cell.
Intake of high amount of salt is toxic to humans as it can cause risk of high blood pressure, stroke, heart attack, etc. Excess of intake of salt can cause a disease to bones known as osteoporosis.
High amount of salt intake draws water out of cell through osmosis due to which blood volume swells, adds pressure to blood vessels. Due to this, cell shrinks and DNA or proteins are damaged.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Cells and osmosis
Keywords:
Blood pressure, blood stream, osmosis, concentration, semi permeable membrane, diffusion, cells, stroke, heart attack, osteoporosis, DNA, proteins.
B 20%
C 25%
D 50%
Answer:
Acquired traits are due to changes in the life style, injury, loss of body parts, disuse of some body parts. These are the traits which occur in the somatic cells. Changes in the somatic cells are not passed on to the offspring belonging to next generation. Hence acquired traits cannot be passed on to next generation.
Explanation: