False, we kept quite a few of the things from the Space Race. If you doubt this you can pull up an article on google right now. Takes 2 secs.
1. C
2. B
3. C
4. C
5. B
6. D
7. C
8. C
9. B
10. D
Myofibrils are the building blocks or contractile unit of each muscle fiber. The tiniest functional unit of skeletal muscle, the sarcomere, is found in the myofibrils and is made up of protein filaments: actin (thin) and myosin (thick).
Answer:
The correct answer is - 1) independent 2) X.
Explanation:
independent variable is the variable or the factor that is altered or made constant or controlled to see or test the effect on the dependent variable in an experiment. Time is used in the experimental protocols in such a manner that it is considered as the independent variable.
In a graph, time is always plotted in the X-axis as independent variables are normally plotted horizontally in a graph.
Thus, the correct answer is option - 1) independent 2) x.
