
Cells - The Building Blocks of Life | Ask A Biologist
How Many Cells Are in the Human Body? All living beings are made up of cells. Some of them are made up of only one cell and others have many cells. The average adult human body has …
Are viruses alive? - Ask A Biologist
2020年3月7日 · For example, they bind to receptors on cells, inject their genetic material into the cell, and can evolve over time (within an organism). Living cells and organisms also usually …
Classifying Living Things | Ask A Biologist
2010年5月22日 · From the time of Aristotle, scientists have been arranging living things in order to study and understand them. The science of classifying living things is called taxonomy.In a …
What is the oldest living thing on Earth? - Ask A Biologist
2017年5月17日 · An individual is hard to define because some organisms make up clonal colonies. In clonal colonies, all individuals are part of or come from the same ancestral …
Biodiversity | What is it and why is it so important to life on Earth ...
Biodiversity covers the incredibly rich variety of life on Earth, from bacteria to plants, animals to humans, and is vital to the way our ecosystems function.
Cell Division - Mitosis and Meiosis | Ask A Biologist
When cells divide, they make new cells. A single cell divides to make two cells and these two cells then divide to make four cells, and so on. We call this process "cell division" and "cell …
What is a Biologist? | Ask A Biologist
2015年2月10日 · A biologist is a scientist who studies living organisms. Studying life can mean many different things and be very complex. Biology research can focus on how an organism …
Timeline of the evolution of life on Earth | New Scientist
2009年7月14日 · The story of evolution spans over 3 billion years and shows how microscopic single-celled organisms transformed Earth and gave rise to complex organisms like animals
Is life the result of the laws of entropy? - New Scientist
2022年6月11日 · Today, the idea that genes are governed by a code that programs the structures and mechanisms of cells and determines the fate of living organisms seems so familiar, that it …
Bacteria Overview | Ask A Biologist
2014年7月3日 · Whales, redwood trees, horses, and people are large organisms. Microscopic organisms include protozoa, bacteria, and fungus. You might be wondering about viruses. …