Quiz , scientific study of life Flashcards
1
Q
what is an atom?
A
the smallest chemical unit of a type of pure substance
2
Q
what is a molecule?
A
a group of joined atoms
3
Q
what is an organelle?
A
a membrane-bounded structure
4
Q
what is a cell?
A
the fundamental unit of life
5
Q
what is a tissue?
A
a collection of specialized cells
6
Q
what is an organ?
A
a structure consisting of tissues organized to interact and carry
7
Q
what is an organ system?
A
organs that are connected physically and function together
8
Q
what is an oragnism?
A
a single living individual
9
Q
what is a population?
A
a group of same species of organism
10
Q
what is a community?
A
all populations that occupy the same region
11
Q
what is an ecosystem?
A
the living and nonliving components of an area
12
Q
what is a biosphere?
A
the global ecosystem; where life is possible
