True or False: Algae are classified as protists, and can have both unicellular and multicellular forms.

Expound on the process of mitosis in a tissue culture for normal cells.

Ecosystem number one contains many different species. Ecosystem number two contains only a few species. Which ecosystem will recover faster in the event of a natural disaster?

Which of the following accurately describes immunity? A) active immunity can develop from vaccinations. B) passive immunity lasts a long time.

Why do the concetrations of CO2 and CO differ from place to place?

In one of her expeditions, a marine biologist finds a new and seemingly adult organism that has a distinct head but an unsegmented body. Under which phylum should she classify this organism? arthropod mollusk echinoderm

What are the basic units of protein macromolecule

Of the following natural processes, which have affected global climate change? A. movement and position of continents B. air temperature C. ocean currents D. land forms E. evaporative rocks

Can a tree produce enough oxygen to keep a person alive? Explain. Biology. At the least a paragraph.

How are viruses different from cells? (Select all that apply.) Viruses cannot respond to their environment. Viruses contain nucleic acids. Viruses do not carry out cellular functions. Viruses have the ability to reproduce.

Which term describes the fusion of cytoplasm from two individuals?