Which occurs as part of gas exchange?

oxygen is exhaled

carbon dioxide is inhaled

carbon dioxide diffuses from the trachea to blood in capillaries

oxygen diffuses from alveolar sacs to blood in capillaries

On a person's hand, there can be 300,000-500,000 genetically distinct bacteria at one time. Wendy regularly puts hand sanitizer on because she is nervous about getting sick.

Describe the process involved in inflammation. Be sure to: describe the process that eliminates the pathogen describe what will happen if the pathogen is not destroyed list the 5 cardinal signs of inflammation

the idea about the universe that keeps expanding outward, then collapsing inward and recycling over and over

If the mum is heterozygous and the dad is heterozygous what are the genotype possibilities

How is the scientific theory of evolution supported by the comparison of the skulls and skeletons of modern humans and extinct hominids?

What is another name for a tropical savanna?

What is a substance in plant sources that cannot be digested that is 5 letters

What would most likely cause the future acceleration of the expansion of the universe? O radiation from the Sun O the existence of background radiation O the continued existence of dark energy O light shifts identified by the Doppler effect

What came about in the devonian period

When will a recessive trait be seen in an organism