Answer:
C
Explanation:
Second law states that conversion of energy is not 100percent efficient, some are lost as heat energy
The nucleus houses the cell's DNA and directs the synthesis of proteins and ribosomes. Mitochondria are responsible for ATP production; the endoplasmic reticulum modifies proteins and synthesizes lipids; and the golgi apparatus is where the sorting of lipids and proteins takes place.
Answer:
d. Expressivity refers to the range of expression of a given phenotype.
e. Penetrance refers to the percentage of individuals that expresses the mutant phenotype.
Explanation:
Penetrance is the probability of a gene being expressed. Sometimes, phenotype is not observed even when the dominant allele is present. It is a result of various genetic and environmental factors coming together.This phenomenon is called as incomplete or reduced penetrance. For example: polydactyly trait is produced by a dominant allele but its penetrance is low in general population hence few people show this trait.
Expressivity is the variation in phenotypic expression when an allele is penetrant. Same genetic combination for a trait can have different expressivity in the same population. This phenomenon is also a result of genetic and environmental factors acting together. For example: people who do end up showing polydactyly trait may show it to different degrees. Some might have one extra finger, some might have two. Some might have a stub, some might have a full grown finger.
Answer:
When a cell breaks down glucose to produce ATP, lots off hydrogen ions are produced and the <u>cells get rid of these ions by </u><u>converting them into water </u><u>upon reaction with oxygen molecules. </u>
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Explanation:
The living cell gets rid of the hydrogen ions by <u>combining them with oxygen to form water</u>. The equation of breakdown of glucose is:
Glucose + Oxygen --------> Carbon Dioxide + Water
ATP is produced here and the <u>hydrogen ions combine with oxygen to form water molecules. </u>
Answer:
Micro: A small scale ecosystem such as a pond, puddle, tree trunk, under a rock etc. Messo: A medium scale ecosystem such as a forest or a large lake.
Explanation: