Answer:
Antibiotic resistance can evolved in bacterial population in the following ways:
Explanation:
- In response to constant exposure to antibiotics some members of a bacterial population develop some beneficial mutations in some essential genes that gives them survival advantage in terms of food and space over the sensitive bacterial strains and hence they are capable of out-competing the sensitive bacteria.
- This happens due to the process of Natural Selection.
- These genes are called antibiotic resistance genes and bacteria usually carry them on plasmids in form of cassettes where genes resistant to multiple drugs are incorporated. These plasmids are called the MDR or Multi-Drug Resistance Plasmids.
- These resistant plasmids can be easily transferred among bacterial populations by conjugation, transformation or transduction or direct plasmid transfer.
- The resistant genes encode for proteins that render the drug ineffective by promoting their efflux from the cells, preventing their entry into the cell, chemically modifying them such that they become non-functional or altering the target site of the drug.
The sun gives direct energy and sunlight to the producer. The producer will grow until it reaches adulthood. A consumer will come eat from that said producer and receive its energy.
That organism is called a carrier
If a person does not consume the minimum daily requirement of carbohydrates then the body will use stored glycogen and the person will look unhealthy and become weak after some time.
<h3><u>
Importance of carbohydrates</u>
: </h3>
- Like other nutrients, carbohydrates are also very essential for various functions of the body.
- Carbohydrates such as glucose are required for instant energy and day-to-day activities.
- If there is no or less amount of carbohydrate in the body then our body will start converting the glycogen that is stored in the liver into glucose.
- After some time, the person will start to appear unhealthy, thin and weak if there is no minimum daily requirement of carbohydrates is met.
To know more about carbohydrates, refer:
brainly.com/question/19874109?utm_source=android&utm_medium=share&utm_campaign=question
#SPJ2
Answer:
Activities such as running and jumping require the quadriceps to generate large knee extension forces. The force generated from these muscles pulls strongly on the tibial tuberosity via the patellar tendon.
Explanation: hope this helps
