Parts of some plants and animals grow according to the Fibonacci sequence of numbers, developed by an Italian mathematician, in which each number is the sum of the previous two numbers. The shell of the chambered nautilus, the seeds in a sunflower, and pineapples all exhibit a structure called the "Fibonacci spiral". Which crosscutting concept of biology do these phenomena BEST represent

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

What happens during the experiment stage of the scientific method

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c. carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit