Complete Guide with Verified Solutions |
Grade A+
Characteristics of Life -✓✓1. Be made of materials organized in a hierarchical pattern.
2. Use energy and raw materials to survive
3. Sense and respond to changing environments and maintain internal stability, or
homeostasis.
4. Grow, develop, and reproduce.
5. Be part of a population that evolves.
The Cell -✓✓the smallest unit that displays all characteristics of life
Matter -✓✓Any substance that has mass and takes up space. All matter can be
classified as biotic or abiotic.
Biotic -✓✓Living or having lived
Abiotic -✓✓nonliving and never have been alive
Atom -✓✓Basic unit of matter
Molecule -✓✓a chemical structure consisting of at least two atoms held together by a
chemical bond
Macromolecules -✓✓Technically polymers, made by combining smaller units called
monomers. (Example -Deoxyrbonucleic Acid [DNA])
Two main types of cells -✓✓Prokaryotic and Eukaryotic
Prokaryote -✓✓Small and simple, do not have clearly defined compartments inside of
them
Eukaryotes -✓✓organisms made up of one or more cells that have a nucleus and
membrane-bound organelles
Organelles -✓✓compartments inside of the cell that contain specific groups of
macromolecules and carry out specific cellular functions.
microorganism -✓✓single-celled life forms
Tissues -✓✓A group of similar cells that perform the same function.
, Organs -✓✓A collection of tissues that work together to carry out a common general
function.
organ system -✓✓the higher level of organization that consists of functionally related
organs
Organism -✓✓individual living entity that survive and reproduce as a unit
Population -✓✓all the individuals of a species living in a specific area
Community -✓✓All the different populations that live together in an area
Ecosystem -✓✓Consists of all the living things in a particular area together with the
abiotic parts of that environment.
Biosphere -✓✓the of all ecosystems on Earth. Includes all habitable zones on the
planet, including land, soil, rocks the Earth's crust, water and ice, and the atmosphere.
Organization of Biosphere -✓✓Molecule, Cell, Organism, Population, Community,
Ecosystem
Homeostasis -✓✓the ability to maintain a stable internal environment
Nutrient -✓✓Any matter an organism needs but cannot make for itself
Waste -✓✓Matter that is not used by an organism tat is excreted
Energy -✓✓the capacity to do work or to make a change in the location, temperature, or
structure of matter.
Evolution -✓✓Scientific theory that explains how and why life changes over time.
natural selection -✓✓A process in which individuals that have certain inherited traits
tend to survive and reproduce at higher rates than other individuals because of those
traits.
sceintific inquiry -✓✓an approach to asking and answering questions
Protons -✓✓Positively charged particles
Neutrons -✓✓the particles of the nucleus that have a neutral charge
electron -✓✓A subatomic particle that has a negative charge