What process created the oxygen in the atmosphere of the early earth

A pea plant that is heterozygous for inflated pea pods is crossed with another plant that makes constricted pea pods. what are the F1 genotypic and phenotypic ratios? what is the probability that the offspring produce inflated pods?

True or false a testcross is used to determine an individual's phenotype

These cells are part of the domains Archaea and Bacteria.

Why did Aristotle reject the universal idea of the good and what does he mean by the concept free will?

What has large internodes

How are ecosystems named? by the climate it is associated with by the plants that inhabit the ecosystem by the surrounding city that is close by by the surrounding country that is close by

What term is used to describe an animal that eats herbivores? A. primary consumer B. primary producer C. secondary consumer D. secondary producer

Basic unit of structure and function in the nervous system is called

Marie's pulse, breathing rate, and mental alertness have suddenly increased. it is likely that marie is experiencing the:

What do bears do to survive the winter? hibernate migrate eat less food i would say a. is correct sharpen their claws