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1 What is the difference between Dicots And Monocots???
2 Diff Between Aerobic and anaerobic respiration
3 Why arteries have thick walls. Explain
4 Explain Human excretory System
Answers
Answer:
1) dicots are typically consisting of two cotyledons in embryonic stage and tend to have tap roots while monocots are indivisible into two and have one cotyledon during embryonic stage with fibrous roots.
2) aerobic takes place in the presence of ample of oxygen. anaerobic takes place in lack of oxygen.
3) arteries have thicker walls to withstand the pressure of blood. they have high blood pressure and the thick walls help them.
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Answere Number 1
Difference Between Dicots And Monocots
⚫Monocots have a single cotyledon in their seeds whereas dicots show 2 cotyledons in their seeds.
⚫Monocots have only one seed leaf inside the seed coat whereas Dicots have two seed leaves inside the seed coat.
⚫Monocots show fibrous root system whereas dicots show tap root system.
⚫Monocot leaves have parallel venation whereas dicot leaves have reticulate venation.
⚫Monocots have a single cotyledon in their seeds whereas dicots show 2 cotyledons in their seeds.
⚫The flowers of monocots are trimerous which means they have three or multiple of three petals. The flowers of dicots are pentamerous which means they possess five or multiple of five petals.
Answere Number 2
Difference Between Aerobic And Anaerobic Respiration
⚫Aerobic respiration occurs when oxygen is present, whereas anaerobic respiration occurs when oxygen is not present.
⚫Aerobic respiration converts glucose to carbon dioxide and water, whereas anaerobic respiration converts glucose to lactic acid .
⚫Reactions for anaerobic mainly occur in the cytosol, whereas aerobic reactions occur in the mitochondria.
⚫Both aerobic as well as anaerobic respirations, are a type of cellular respiration process. Glycolysis is used in both modes, for the production of ATP. Hence, in both modes, glucose is metabolized for production of energy, and other by products.
Answere Number 3
Why arteries have thick walls. Explain
Arteries have thick walled because it transfer blood from the heart to other parts under high pressure.veins have thin wall because they transfer blood from different parts of the body back to heart. This is because blood does not flow in pulses and so the vein walls cannot help pump the blood on.
Answere Number 4
Explain Human Excitatory System
Every living organism generates waste in its body and has a mechanism to expel it. In humans, waste generation and disposal are taken care of by the human excretory system. The human excretory system comprises of the following structures:
2 Kidneys
2 Ureters
1 Urinary bladder
1 Urethra