What is one defining feature of a prokaryotic cell?

cytoplasm surrounds organelles

organelles are not membrane-bound

membrane-bound organelles

have a cell wall outside plasma membrane

A couple has just learned that their daughter has hemophilia. What are the genotypes of the parents

Name the three types of scientific investigations.

A complex of interconnected food chains in an ecosystem is called a/an a. ecosystem. b. food web. c. ecological pyramid. d. trophic stack.

Assume there are 1000 units of energy in the producer level of the energy pyramid. How many units of energy are available at each of the three consumer levels? Show your calculations.

Why are nonvascular plants so small

Which book is considered the catalyst of the modern environmental movement?

By which process are CO2 and H2O converted to carbohydrates?

T/F Metamorphic rocks are formed by a combination of heat, pressure, or hot fluids acting on an igneous, sedimentary or other metamorphic rock.

Which organism in the above pyramid has the least available energy

Minerales mas abundantes del suelo