What is the most complex in biology?

The highest level of organization for living things is the biosphere; it encompasses all other levels. The biological levels of organization of living things arranged from the simplest to most complex are: organelle, cells, tissues, organs, organ systems, organisms, populations, communities, ecosystem, and biosphere.

What are some mysteries in biology?

This article lists notable unsolved problems in biology….Evolution and origins of life

• Origin of life.
• Evolution of sex.
• Development and evolution of brain.
• Origin of Eukaryotes (Symbiogenesis).
• Last Universal Common Ancestor.

What is the smallest living unit?

cell
The cell is the smallest structural and functional unit of living organisms, which can exist on its own. Therefore, it is sometimes called the building block of life. Some organisms, such as bacteria or yeast, are unicellular—consisting only of a single cell—while others, for instance, mammalians, are multicellular.

Are cells alike?

Cells are very diverse, but are the foundation of all living things. Take a look at different types of cells and learn how they have similar needs. Cell are alike, but different!

What is a problem in biology?

1. A question proposed for solution; a matter stated for examination or proof; hence, a matter difficult of solution or settlement; a doubtful case; a question involving doubt. 2.

Is a virus considered alive?

Most biologists say no. Viruses are not made out of cells, they can’t keep themselves in a stable state, they don’t grow, and they can’t make their own energy. Even though they definitely replicate and adapt to their environment, viruses are more like androids than real living organisms.

Who discovered cell?

Robert Hooke
Initially discovered by Robert Hooke in 1665, the cell has a rich and interesting history that has ultimately given way to many of today’s scientific advancements.

What is bioinformatics 9th class?

: the collection, classification, storage, and analysis of biochemical and biological information using computers especially as applied to molecular genetics and genomics.

Why are experiments necessary in biology?

Experiment can provide hints toward the structure or mathematical form of a theory and it can provide evidence for the existence of the entities involved in our theories. Finally, it may also have a life of its own, independent of theory. Scientists may investigate a phenomenon just because it looks interesting.