Answer:
Describe how the students would use the apparatus to show that there were microorganisms present in the air in the laboratory. Remember to think carefully about experimental design and how to make the results reliable.
Title: using apparatus to know the presence of microorganisms
aims and objectives: description of presence of microorganisms in the air
materials and method: petri dish, agar, distilled water, hand gloves, nose mask, pipette e.t.c
methodology: pipette is used to measure the amount of water in a petri dish and placed outside where hands can not be touched for 24 hours, after then the water is taken to the lab and agar is added for bacteria growth, after 24 hours, if the microbial growth is seen on the cultured plate, then it shows that the air is contaminated with microorganism which mixes with water when exposed to air
precaution: i ensured personal protective equipment are worn throughout the experiment.
conclusion: it is ascertained that air is contaminated with microorganism as a result of the above performed experiment
Explanation:
Answer:
Smaller muscle groups with a similar functional ability might include the antagonist major which acts as synergist in producing the same action as the agonist.
example : the biceps and triceps muscles of arm, work together as agonist and antagonist respectively.
The biceps helps to lift up or flexes the forearm and the triceps helps to extend it.
Explanation:
many muscles work together to make an action happen.
the muscle who is involved in an action principally, is known as prime mover or Agonist muscle.
Antagonist muscle does the opposite action of the agonist muscle.
antagonist also helps in-
- maintaining the body posture or position.
- controls the rapid movements.
like, to move a bone , the muscles attached to it work together to make a movement happen. like- to lift up a arm, agonist or prime mover muscles helps to lift up or flex the arm and the antagonist or synergist muscle helps to extend it.
Answer:
85x2=170
Explanation:
the number of individuals must be multiplied by 2 since there are 2alleles for every individuals
