Chapter 1 : Exploring Life (part 3)

Question 1

Exchange of matter

Answer 1

Recycling of chemical nutrients from the atmosphere and soil through producers, consumers, and decomposers back to the environment

Question 2

Exchange of energy

Answer 2

One - way flowof energy through an ecosystem, entering as sunlight, converted to chemical energy by producers, passed on to consumers, and exiting as heat

Question 3

Autotrophs

Answer 3

An organism that makes its own food and is able to sustain itself without eating other organisms

Question 4

Producers

Answer 4

An organism that makes organic food molecules form CO2, H2O, and other inorganic, raw materials

Question 5

Heterotroph

Answer 5

An organism that cannot make its own organic food molecules and must obtain them by consuming other organisms or their products

Question 6

Consumer

Answer 6

An organism that obtains it’s food by eating plants or by eating animals that have eaten plants

Question 7

Decomposer

Answer 7

Organisms that secrete enzymes to digest nutrients form organic materials and convert them to inorganic forms

Question 8

Genes

Answer 8

Discrete units of inheritance that transmits information from parents to offspring
Grouped into DNA molecules called chromosomes

Question 9

Taxonomy

Answer 9

Science that names species and classifies them into a system of broader groups

Question 10

3 domains to Taxonomy

Answer 10

Domain Bacteria
Domain Archaea
Domain Eukarya

Question 11

Domain Bacteria

Answer 11

The most diverse and widespread grouping of prokaryotes

Question 12

Domain Archaea

Answer 12

Prokaryotes that often live in Earth’s extreme environments such as salt lakes and boiling hot springs. they thrive in temperature and pH extremes

Question 13

Domain Eukarya

Answer 13

Have eukaryotic cells and includes single celled protists and multicellular fungi, animals, and plants

Question 14

Protista

Answer 14

Eukaryotic cells that live in moist or aquatic environments