Which of the following statements regarding sarcomeres is not true?
a. sarcomeres are overlapping thin and thick filaments.
b. the sarcomere is a subunit found on the myofibril.
c. sarcomeres extend from one m line to the next m line.
d. the position of the myofilaments in a sarcomere give it a banded appearance.

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

What do transitional fossils best support?

In which energy level are valence electrons located?