Explain two reasons why having an oxygen-rich atmosphere is important for pife on Earth?

Many-celled organisms that make their own food are called: fungi bacteria plants animals

Asexual Reproduction?

What is a characteristic type of plant for each of the six land biomes

Which type of water is more dense, warm fresh water or cold salty water? explain why?

Which type of traits vary quantitatively due to the interaction of multiple genes? polygenic codominant incomplete dominant dominantIf a red cow (homozygous dominant) is crossed with a white cow (homozygous dominant), what alleles will the offspring

Which of the following is a negative effect of algal blooms on the environment?

The idea that natural selection promotes an increase in positive mutations matches ___'s theory. a-Lamarck b-Darwin

A cross section of a tree bunk shows 20 dark colored rings and 20 light colored rings what is the likely age of this tree

What side of the body is your appendix on?

Which principle was used to gather evidence that led to the big bang theory? A. Doppler shift B. radiocarbon dating C. first law of thermodynamics D. law of gravity