A boy is pulling a rope with a force of 300N. His friend is pulling on the rope in the opposite direction with a force of 180N. What is the net force acting on the rope?

to function on their own unicellular organisms must do what? A) make tissues B) perform a specialized task C) work with other cells or d) do all jobs for survival

What does having too many or too few electrons mean

Barn owls can eat up to 10 rodents per day. Farmers have constructed 60 "nesting boxesin this valley for the owls to use as their homes, which gives their babies a safe place to hatch. How will this affect the rodent population?

The method in which fossils are dated using isotopes is called: a. relative dating c. radiometric dating b. cladistics d. evolutionary taxonomy

A group of related parts that work together to perform a specific function or formal hole is known as a what

Which has prokaryotic cells A. rose thorn B. beet root C. Lactobacillus D. human kidney

If you wanted to study the diversity of organisms at all levels of biological organization what Would You Study

A female zebra finch reared by a father with a red feather taped to his head will select a mate with a similar ornament over an unornamented male. What are plausible ultimate explanations for this behavior (i. e.

What do birth rate, death rate, immigration, and emigration determine about a population?

He number of chromosomes in each cell goes from diploid to haploid after 1) anaphase 1 2) telophase 1 3) anaphase 2 4) telophase 2