Why do some marine scientists specialize in single-celled organisms? a) There are very few species to choose from.

b) Single-celled organisms are the least understood in the ocean.
c)
Many of them are poisonous, so they endanger other creatures.

d) Single-celled organisms form the foundation of life in the ocean.​

Which of the following words best matches this definition: the process in which the best adapted organisms survive and pass on their traits, while those that are not well adapted do not survive to pass on their traits. question 3 options: acquired selection natural selection artificial selection organic selection

What are 3 reasons that natural selection occurs

What is the difference in the cell cycle between healthy cells and cancerous cells?