Answer:
mitochodrion.
Explanation:
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Answer:
minutes
Explanation:
For a First order reaction, the rate constant is determined by
Where
k= rate constant
t= time required for a reaction
a= initial concentration
x= amount of reactant decomposed in time t
a-x= amount of reactant left after time t
Let the initial concentration be 
Then
Substituting the given values in above equation, we get -
Also,
minutes
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Answer: Neck size
Explanation:
The independent variable can be defined as the factor that can be controlled and it is variable.
The dependent variable depends on the independent variable. The independent variable is changed in order to get the result of the experiment.
here, the variation in the size of neck is independent variable and the rate of survival is dependent variable.
The independent variable is neck size.
Answer:
D. muscularis externa
Explanation:
The gastrointestinal tract or digestive tract consist of four main layers:
• Mucosa- consists of the epithelium together with glandular tissue and the lamina propria (connective tissue)
• Submuscosa- consists of fibrous connective tissue with larger blood vessels, lymphatics, nerves..
• Muscularis externa-smooth muscle layer that consists of three layers, responsible for movement (propulsion) and physical break down of the food
• Serosa-consists of connective tissue continuous with the peritoneum.
