Answer:
pathogens
Explanation:
pathogens may occur in various way e.g spread from a person to person by directly body contact
Answer: Option B) have mitochondria and chloroplasts.
Plant cells have mitochondria and chloroplasts.
Explanation:
Unlike animal cells, plants cells possess mitochondria and chloroplasts. Mitochondria serves as site for respiration giving off oxygen as by-product while chloroplasts are site of photosynthesis, where sugar molecules are formed from simple inorganic molecules like atmospheric carbon dioxide, water and sunlight trapped by chlorophyll.
Answer: Option B
The enzyme has changed shape because of high temperature.
Explanation:
Enzymes are biological catalysts in living organisms that speed up the rate of chemical reactions.
High temperature changes the shape of enzymes.
Increase or high temperature lead to decrease in enzymes activities. This is due to enzyme protein been denatures by high temperature which is the breaking of molecular bonds within the enzyme protein. When the enzymes bonds are broken, the shape of the enzymes changes and they no longer act as catalysts.