The structural level in which the muscle produces the contraction is known as the muscle fiber.
<h3>What is a muscle fiber?</h3>
A muscle fiber is a single muscular cell that is able to contract by using specialized proteins such as filaments of myosin and actin.
This unit (muscle fiber) is able to contract both in vivo and in vitro by establishing suitable environmental conditions (e.g., proper calcium levels).
In conclusion, the structural level in which the muscle contracts is the muscle fiber.
Learn more about muscle fibers here:
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The answer is one of the sandy options i think two but i am not completely sure
Answer:
Prior exposure to smallpox.
Explanation:
The small pox is the infectious disease caused by the different strains of variola virus. The vaccination for the small pox is available to eradicate the disease.
The milkmaids are already and multiple times have the exposure with the small pox. This develops the memory of the small pox virus infection in the immune cells of the individual and they are less likely on the infection exposure with the small pox.
Thus, the answer is prior exposure to smallpox.
Answer:
Observation: Fertiliser produced tall pea plants
Hypothesis: Pea plants grown in the soil with the addition of fertiliser will grow taller than pea plants without fertiliser
Independent variable: Fertiliser
Dependent variable: Growth of plant
Control group: 5 pea plants in the pot without fertiliser
Experimental group: 5 pea plants in the pot with fertiliser added
Qualitative or Quantative data: Qualitative
Explanation:
Observation is using your senses to describe what you see.
A hypothesis is a prediction.
The independent variable is what you change in an experiment.
The dependent variable is what changes as a result of the independent variable. The dependent variable is what is measured in an experiment.
The experimental group is the group of subjects in an experiment which are exposed to the independent variable.
The control group is the group of subjects in an experiment which are not exposed to the independent variable.
Qualitative data is data that can be described but not measured. Quantitative data is data that can be measured.
Kinda looks like a normal rock but with something on the bottom.
