Biology 120 Notes (Part 1) Starting Biology

Systematics

is a term describing the study of evolutionary relationships between organisms.

atom

A(n) is the smallest part of an element that displays the property of the element.

Taxonomy

is a term that describes the branch of biology that identifies, names, and classifies organisms.

All living things have:

order/organization, reproduction, growth and development, evolution /adaption, response to stimuli, energy processing, and homeostasis /regulation.

Matter

is a term describing anything that has mass and occupies space.

Biology

describes the scientific study of life.

element

A(n) is a substance that is composed of a type of atom.

weight of organisms

Six elements make up 99 % of the body .

All living things have characteristics such as

order/organization, reproduction, growth and development, evolution/adaption, response to stimuli, energy processing, and homeostasis/regulation

All living things belong to one of the following domains

bacteria, archaea, or eukarya

Eukaryotic cells

_ have a true nucleus (membrane-bound), have cells with membrane-bound organelles, are usually multi-cellular, and are usually visible to the naked eye.

Prokaryotic cells

__ do not have a true nucleus, lack membrane-bound organelles, are always single-celled, and are always microscopic.

All living things belong in these domains:

bacteria, archaea, or eukarya.

Domain Archaea

They are prokaryotic cells from various shapes, live in extreme environments, absorbs food, and have unique chemical characteristics.

Domain Bacteria

They are prokaryotic cells of various shapes, can adapt to any environment, absorbs food, and have unique chemical characteristics.

Domain Eukarya

They are eukaryotic cells that have a true nucleus, have complex inner and outer structures, and have the largest body mass and size out of the other domains.

The most common elements are

carbon, hydrogen, nitrogen, oxygen, phosphorous, and sulfur.

atom

An is the smallest part of an element that displays the property of the element. It contains subatomic particles.

Atomic mass

is located at the top left of an atomic symbol.

Atomic number

is located at the bottom left of the atomic symbol.