Muscles that help elevate the ribs during quiet respiration are called:
A. scalenes
B. pectoralis major
C. sternocleidomastoid
D. intercostal muscles

Which events are likely to be catastrophic to an ecosystem? select the three correct answers.a-hurricane.b-steady population growth.c-seasonal flooding.d-introducing of an aggressive invasive species.e-tsunami.

Which of these outcomes is a negative impact of postindustrial societies on the environment? a. nomadic ways b. overpopulation c. overgrazing d. resource renewal

How do bacteria protect their genetic material and cytoplasm during harsh conditions