Answer the following question given this paragraph: The age-sex structure of a population is the number of individuals of each sex and age in the population. Age-sex structure influences population growth. It is represented by a population pyramid. The number of survivors at each age is plotted on a survivorship curve. Q: What helps represent age-sex structure of the population? Choices: - habitat chart - density graph - biome model - population pyramid A:
population pyramid

Answer the following question given this paragraph: Prokaryotic cells are extremely small and have a variety of shapes. Most have flagella and a cell wall. They have several other cell structures as well. Their DNA exists as large and small loops. Some prokaryotes form biofilms, which are colonies of cells stuck to a surface. Q: What are colonies of cells stuck to a surface called? Choices: - membranes - cellular coating - membranes - biofilms A:
biofilms

Answer the following question given this paragraph: Q: The medieval catapult has a heavy ballast on one end and what on the other end? Choices: - fragment - pivot - propellant - projectile A:
projectile