Primary succession occurs<span> in essentially lifeless areas—regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. Secondary </span>succession occurs<span> in areas where a community that previously existed </span>
Answer:
Nonliving characteristics include the fact that they are not cells, have no cytoplasm or cellular organelles, and carry out no metabolism on their own and therefore must replicate using the host cell's metabolic machinery.
Explanation:
Viruses lack membranes. Hence, they do not show characteristics of life until they enter a living cell. On entering the living cell they use the cell machinery to multiply.
Answer:
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Answer: The enzymes are important to the digestive system because they help in BREAKING DOWN of food substances that contains fat, carbohydrates and proteins.
Explanation:
In the process of digestion, several substances are secreted into the duodenum which is the first part of the small intestine. The pancreas, through the pancreatic duct, secretes pancreatic juice. This juice contains several digestive enzymes which include:
--> Amylopsin- This helps in the breaking down of starch( CARBOHYDRATES) to maltose.
--> trypsin: this is a protease that helps in the breaking down of PROTEIN into polypeptide.
--> Lipase: This helps in the breaking down of FAT to carboxylic acids and glycerol.
All the above enzymes of the pancreatic juice require an alkaline medium to work in. This is provided by the bile which is secreted in the fall bladder.
Answer: minus 459.67 degrees Fahrenheit (-459.67°F)
Explanation:
Conversion from Kelvin to Fahrenheit can be achieved using the following formula:
let ( K = temperature in Kelvin ) and ( F = temperature in Fahrenheit )
F = ( K x 9/5 ) - 459.67
In this example:
F = ( 0 x 9/5 ) - 459.67
F = -459.67
