Options for the question have not been given. They are as follows:
blood vessel length
blood viscosity
blood vessel diameter
blood colloid osmotic pressure
Answer:
blood colloid osmotic pressure
Explanation:
- Peripheral resistance is the resistance to blood flow by blood vessels.
- It is directly proportional to blood vessel length as more the distance to travel, more will be the resistance.
- It is also directly proportional to blood viscosity as more energy is required to push viscous material.
- It is indirectly proportional to blood vessel diameter. More the diameter of the vessel, easier it is for the blood to pass.
- However, it does not depend on blood colloid osmotic pressure. Colloid osmotic pressure is created by the protein components of blood and they do not have any direct impact on blood flow.
The answer is hydrogen bonds
Answer:
converting energy from sunlight into chemical energy in glucose products
Explanation:
Each male and female sex cell has 46 chromosomes in it. The number of chromosomes are reduced to half(23), so that when the sex cells combine, they also add up to 46(23+23). If the chromosomes did not reduce to half, the number of chromosomes would be off balance and the gamete would not survive.
Answer:
Although the question is incomplete, missing options are
- In 1997, they reduced their water consumption.
- In 1996, they planted more trees to curb water pollution.
- In 1994, they used only bottled water for drinking purpose.
- In 1995, they complained about foul odor and taste in water.
Correct option: <em><u>In 1996, they planted more trees to curb water pollution.
</u></em>
Explanation:
Among given options, a clear trend of nitrate level can be seen. <u>Initially, the nitrate level increased in water in first two years (1994 and 1995) and then it decreased significantly</u>.
From the conditions given in the question, the most probable answer is B the plantation effect (<u>phytoremediation</u>). During phytoremediation, <u>plants take up nutrients including nitrate</u> from the water via roots. This nitrogen is then used for the growth and development of plant body mass (e.g. amino acids). As more plants were growing in later years, higher reduction of nitrate was seen. Resultantly, in 1997, the concentration of nitrate was dropped to 7.3 mg/L.
The other options are not correct due to following reasons.
A. There is no information on water consumption in the question
C. There is no information on people's behavior on drinking water lifestyle.
D. Nitrate in the water cannot be smelled or tasted.
