Answer:
True
Explanation:
Bloodflowisaffectedbybothbloodpressureandvesselresistance.
Blood flow is indeed affected by both blood pressure and vessel resistance. While blood pressure is the force exerted by blood on the vessel walls, vessel resistance is the opposition to flow that blood encounters in vessels. Both factors significantly impact blood flow.
The statement 'Blood flow is affected by both blood pressure and vessel resistance' is true. Blood pressure is the force exerted by the blood against the walls of the blood vessels. The higher your blood pressure, the harder your heart has to work to pump blood. On the other hand, vessel resistance refers to the opposition to flow that the blood encounters in vessels away from the heart. Factors that impact vessel resistance include vessel diameter and blood viscosity. Thus, both blood pressure and vessel resistance play critical roles in affecting blood flow.
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Answer: Wind power creates Noise pollution.
Wind power is a renewable resource as it is easily replenished within due course of time. It is used to generate electricity. For this, it uses large turbines which consist of mechanical device called the propeller. This device rotates with high speed in order to push against air. This creates sound waves which cause considerable effects in the nearby population. Sound waves may cause headache, psychological problems, nausea and other harmful effects.
In this way, wind power creates noise pollution.
Answer:
The _VirA_ protein is embedded in the membrane of Agrobacterium and senses the presence of acetosyringone from the wounded plant cell.
Explanation:
VirA is a protein histidine kinase which detects certain phenolic compounds and sugars. Wounded plants areas are typically contains these compounds. This site is a potential infection site for Agrobacterium tumefaciens as a result VirA is used by Agrobacterium tumefaciens to locate it and cause damage.
mechanical weathering
chemical weathering
biological Weathering
The root of a huge tree causes cracks in a rocky surface.
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Part of a cliff breaks and falls due to waves.
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Acid rain reacts with calcite present in limestone,
Answer:
The root of a huge tree causes cracks in a rocky surface.---> biological Weathering.
Part of a cliff breaks and falls due to waves.----> mechanical weathering
Acid rain reacts with calcite present in limestone---> chemical weathering
Explanation:
The root of a huge tree causes cracks in a rocky surface is the example of biological Weathering because in this weathering living organism is involved. Part of a cliff breaks and falls due to waves of water is the example of mechanical weathering because water enters the small pores of rocks and formed cracks when expands. Acid rain reacts with calcite present in limestone is a chemical weathering because acid present in rain water is responsible for the degradation and breakdown of rocks.
Here's the matching of the scenarios with the types of weathering:
1. The root of a huge tree causes cracks in a rocky surface - Biological Weathering
2. Part of a cliff breaks and falls due to waves - Mechanical Weathering
3. Acid rain reacts with calcite present in limestone - Chemical Weathering
Biological Weathering: In this scenario, the root of a huge tree causes cracks in a rocky surface. Biological weathering refers to the breakdown of rocks caused by the activities of living organisms. The roots of the tree can exert pressure on the rocky surface as they grow, causing cracks and eventually breaking apart the rock.
Mechanical Weathering: Part of a cliff breaks and falls due to waves. Mechanical weathering involves the physical breakdown of rocks into smaller fragments without changing their chemical composition. In this case, the force of the waves pounding against the cliff causes pieces of the rock to break off and fall.
Chemical Weathering: Acid rain reacts with calcite present in limestone. Chemical weathering involves the breakdown of rocks through chemical reactions. Acid rain, which is rainwater with a low pH due to the presence of acidic compounds, reacts with the calcite (a mineral in limestone) and causes it to dissolve, leading to the erosion and weakening of the limestone.
Each type of weathering plays a role in shaping the Earth's surface over time, and they often work together to break down rocks and minerals into smaller particles.
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The amount of guanine in a organism always equals the amount of cytosine.
The Deoxyribonucleic acid (DNA) molecule is made up of four building blocks called nucleotides: adenine (A), thymine (T), guanine (G), and cytosine (C).
The guanine, also called guanosine, is defined as one of the nucleobases found in the nucleic acid of DNA and ribonucleic acids (RNA).
Cytosine plays an essential role in forming base pairs by bonding with guanine and forming the genetic code found in both DNA and RNA.
Therefore,the quantity ofguanine bases are the same with cytosine bases on the opposite strand.
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