Into to Biology

Question 1

List the Characteristics of life

Answer 1

1. Order
2. Responsiveness
3. Evolutionary adaptation (regulation & Homeostasis)
4. Thermoregulation
5. Reproduction
6. Energy Process
7. Growth & Development

Question 2

What is growth? and how does it differ from development?

Answer 2

Increase in Cell # and Size

Question 3

What is homeostasis?

Answer 3

Ability to adapt to our surroundings

Question 4

How does the body maintain homeostasis?

Answer 4

Through Thermoregulation 98.6F & Osmoregulation (kidneys help us retain or release water/salt)

Question 5

Examples of adaptation?

Answer 5

Morphological(seahorse), Behavioral(squirrels, Physiological (Bear)

Question 6

5 unifying things in biology

Answer 6

1. Organization
2. Information
3. Energy & Matter
4. Interactions
5. Evolution

Question 7

list the levels of biological life

Answer 7

Atom-
Molecule- 
Organelles
Cells
Tissues
Organ & Organ Systems
Organisms
Population
Communities
Ecosystem
Biosphere

Question 8

Contrast Prokaryotic and Eukaryotic cells. Give examples

Answer 8

PRO- No Nucleus or Membrane bound organelles (Bacteria & Archaea)

EUK- Nucleus & Membrane (Fungi, protists, plants, animals)

Question 9

what is the heritable info in a cell?

Answer 9

DNA

Question 10

what is the unit of inheritance that encodes info for building molecules within cells?

Answer 10

Genes

Question 11

what is a gamete?

What is a zygote?

Answer 11

Gamete- Sperm & Egg- each carrying its own dna info

Zygote- Combined dna (forming a fetus)

Question 12

how does energy usually exit an ecosystem

Answer 12

Enters as light leaves as HEAT

Question 13

contrast producer vs. consumer

Answer 13

PRODUCER- convert sunlight to a chemical energy (SUGARS)

CONSUMER- utilizes the chemical energy (sugars) from the organisms they eat (Herbivores; Carnivores; Decomposition)

Question 14

what is feedback regulation? What are the two types of feedback?

Answer 14

THE OUTPUT (OR PRUDUCT)

Negative feedback- reduces the initial stimulus (Blood sugar regulation)

Positive- an end product, speeds up the process (Blood clotting)

Question 15

what is evolution?

Answer 15

Genetic Changes over time at the population level.

Question 16

what is taxonomy?

List the taxonomy hierarchy in order (Broad to specific)

Answer 16

Names, Describes classifies Organisms.

BROAD
Domain Dear King Philip Came Out For
Kingdom Great Sex
Phylum
Class
Order
Family
Genus——— Scientific names
Species—- Scientific names
Specific

Question 17

what are the three domains? Examples of organisms found within…

Answer 17

BACTERIA- Most diverse & widespread prokaryotes.
(E-coli, Strepococcus, salmonella)

Archaea- Prokaryotes in EXTREME environments (Thermophils)

Eukarea

Question 18

what were the two main points in darwin’s “On The Origin of Species?”

Answer 18

Species showed evidence of descent with modification from common ancestors.

Proposed natural selection as the mechanism behind descent with modification.

(Adaptations were involved.

Question 19

List the four basic steps of the scientific process?

Answer 19

Observe- make an observation
Question- ask a question or identify a problem
Hypothesis- 
Prediction- 
Test
Results