What are the correct terms given for the spiral grooves that are either cut or impressed upon the bore of a barrel of a gun?
les )
marks and cuts
lands and grooves
calibers and shots
extractors and ejectors HURRY !!!

Pls quickly! which of the following is true about the behavior of an organism? a. the behavior of an organism is influenced by both its heredity and it’s environment. b. the behavior of an organism is influenced only by the treats it inherits from its parents. c. the behavior of an organism is influenced only by the environment in which it lives in. d. the behavior of an organism is not influenced by either it’s heredity or its environment.

Select the correct answer from each drop-down menu proteins are

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above