Principles of Life

Question 1

What is the Hierarchy of Life
(atoms→ biosphere;)

Answer 1

atom,(molecule, macromolecule, organelle, cell, tissue, organ, organ system,) organisms, population, community, ecosystem, biome, and biosphere.

Question 2

Characteristics of Life:

G.R.A.C.E

Answer 2

G - growth and developement
R - reproduction
A - adaptation and responce
C - made of cells
E - energy

Question 3

growth

Answer 3

an increase in size

Question 4

developement

Answer 4

change or appearance of a new feature

Question 5

reproduce

Answer 5

produce new organisms and pass on their genetic traits

Question 6

adapt

Answer 6

over long periods of time, groups of organisms do this in response to their environment, which is known as evolution

Question 7

respond

Answer 7

to their surroundings to get back to their “normal state” - known as homeostasis

Question 8

cells

Answer 8

• living things have to be made of these basic units
• smallest living unit in an organism

Question 9

prokarytic cells

Answer 9

cells that don’t contain a nucleus nor membrace bound organelles (ex. mitocondria)

Question 10

eukaryotic cells

Answer 10

THEY HAVE A NUCLEUS

organisms obtain and use materials (food and energy) to grow, develop, and reproduce. The chemical reactions that enable living things to get energy are called metabolism.