Which prokaryotic organism shows up as old as the oldest fossils

A. Archaea

B. Echinoderms

C. Algae

D. Cyanobacteria

3. Student sees the "new kid" sitting alone at lunch and decides to sit and eat with them. Behaviorism Psychoanalysis Humanism Neurobiological

Which statement is true of an endangered species? It is threatened with becoming extinct in the near future. It is currently extinct. It could become endangered soon. It is any species preyed upon by another.

A cell has 38 chromosomes. After mitosis and cell division, one daughter cell has 39 chromosomes and the other has 37. What might have caused these abnormal chromosome numbers? What effects do you suppose this might have on cell function? Why?

What is the sex pf a person with two x chromosomes

Summarize the biodiversity crisis.

An example of recycling is A. using a paper cup instead of a mug B. turning off the lights when leaving a room C. using plastic from a soda bottle to make a certain type of clothing D. using two paper towels rather than five to clean up a spill

How movements of tectonic plates change Earth's surface?

After several generations survive in the altered environment, what will the average body size of yellow tangs in this population be?

How does climate change affect energy in the atmosphere A. Increased ice causes less energy to be reflected B. Increased ice causes MORE energy to be reflected C. Decreased ice causes more energy to be reflected D.

Which describes the behavior of members of a herd leaving an area to find food