Which River Valley civilization studied Geometry and Astronomy?
Group of answer choices

Biologists recognize five levels of cell organization. the lowest and simplest is the cellular level. organisms here are either unicellular organisms, like protozoa, or colonial organisms. colonial organisms are composed of single-celled individuals that stay together to sustain the life of the whole colony. next on the scale of complexity is the level occupied by tissue. a tissue is a group of similar cells which perform a similar activity. tissues that are organized around a common function together make up an organ, the third level of complexity. the fourth level of organization is the system, formed by a group of organs which together perform a specific bodily process. the fifth and highest level is the organism level, in which body systems work together in a structure capable of independent life. main idea:

Which of the following best demonstrate a strong conflict? a. catherine enjoyed painting, and was able to practice her art every tuesday. b. leanne loved camping, but it was a lot of work. she had to start gathering her supplies weeks before the big trip. c. kate wanted to be a fitness instructor. she worked hard to become a certified aerobics teacher. d. russell knew that if he did not get a good grade on his test, then he would fail the class and not be allowed to graduate.

If you wanted to figure out a topic and some details about that topic you would want to use a ?