What two groups of organisms include all prokaryotes on earth

Jeff, 48 years old, presents to the clinic complaining of fleeting chest pain, fatigue, palpitations, lightheadedness, and shortness of breath. the pain comes and goes and is not associated with activity or exertion.

What is the educated guess of the answer to a question called

What are the three main stages of the water cycle?

Which of these is NOT a direct factor that controls biotic potential? a. The resources available for each individual b. Genetic mutations c. The age at which reproduction generally begins d. Reproductive rate e. Predators and pathogens

The number of chromosomes in each cell goes from diploid to haploid after

Is bread biotic or abiotic? Yeast is alive?

The central nervous system includes

The impact of genes on observable traits can vary in different environments. thus, genes are said to be:

How does the age of seafloor sediments change with increasing distance from the ocean ridge?

12. The bubbling that you observed indicated the production of what gas as a result of the enzymatic reaction?