Which of the following is not part of the cell theory?

a. every living thing is composed of cells.
b. cells come from preexisting cells.
c. cells are the basic unit and structure of all living things.
d. every cells have a nucleus that contains genetic material.

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Which of the following statements is most likely correct about a rock belonging to the jurassic age and a rock belonging to the cambrian age? options: 1) they have identical fossils of organisms that have evolved over time. 2) both have animal fossils preserved in them due to weathering and erosion. 3) they contain different fossils because life on earth has changed through time. 4) the fossils in them were formed on the surface of earth due to exposure to sunlight.

Which feature of a human community is similar to a niche in a biological community