Bio testweek 1 - chp 1,4,5,10

Question 1

What is a biosphere

Answer 1

All enviornments on earth that support life

Question 2

What is an ecosystem

Answer 2

• All living organisms living in a particular area
• All nonliving physical components with which organism interacts with

Question 3

What is a community

Answer 3

The entire array of organisms inhabiting a particular ecosystem

Question 4

What is a population

Answer 4

All individuals of a species living in a specific area

Question 5

What is an organism

Answer 5

an individual living thing

Question 6

What is an organ system

Answer 6

Organs that work together to perform a function

Question 7

What is an organ

Answer 7

A part of an organism that has a vital function

Question 8

What is a tissue

Answer 8

It consists of similar cells

Question 9

What is a cell

Answer 9

Its the smallest unit that can live on its own, separated from its enviornment, made up of organelles
A cell can also take in and use energy
It is the basic unit of life and the lowet=st level structure that can perform all activities for life

Question 10

What is an organelle

Answer 10

A membrane-bound structure that performs a function in a cell

Question 11

What is a molecule

Answer 11

A cluster of atoms

Question 12

What are emergent properties

Answer 12

• properties that become apparent
• result from various interacting components within a system but are properties that do not belong to the individual components themselves
• they emerge as a result of interactions among components in lower levels

Question 13

What are decomposers, producers and consumers

Answer 13

decomposers - act as recyclers and change complex metter (wastes and dead organisms ) into mineral nutrients that plants can use
consumers - eat plants and animals, they take up o2 from air and turn it into co2
producers - provide food for the enviornment and animals

Question 14

What are the 2 major processes of ecosystems

Answer 14

1. Recycling of chemical nutrients
2. flow of energy

Question 15

What is the recycling of chemical nutrients

Answer 15

It is when H2O, O2 and CO2 flow from air to the soil to plants to decomposers

Question 16

What is the flow of energy

Answer 16

Ecosystemsn gain and lose energy constantly.
1. Energy goes to the ecosystemsn when producers absor light energy form the sun.
2. The producers convert it into glucose and heat
3. The consumers consume this energy and give CO2 in return so the producers can use it

Question 17

There’s 2 basic cell types, what are they

Answer 17

1. Prokaryotic cell (prokaryotes)
2. Eukaryotic cell (eukaryotes)

Question 18

What are the differences between the 2 basic cell types

Answer 18

Prokaryotes - simpler and smaller, main cell of bacteria
Eukaryotes - main cell of the forms of life (plants animals funghi) subdivided by internal membranes into different functional compartments and contains membrane inclosed organelles

Question 19

What is DNA

Answer 19

• It is the units of inheritance that pass info from parents to offspring
• They are made up of a double helix and 4 chemical building blocks also known as bases

Question 20

What are the properties all organisms have in common

Answer 20

1. order
2. Regulation
3. Growth & development
4. Energy processing
5. Response to enviorment
6. Reproduction
7. Evolution Adaption

Question 21

What is the difference between the vertical and horizant scope in bio

Answer 21

• Vertical: covers the molecule –> biosphere (biological organisation)
• Horizontal: diversity of organisms now and over lifes long history

Question 22

What is Taxonomy

Answer 22

The branch of biology that names and classifies species and arranges them into a hierarchy of broader groups

Question 23

What are the 3 domains in life

Answer 23

Bacteria, Archea and Eukarya

Question 24

What do you know about the domain of bacteria

Answer 24

• consists of prokaryotes
• these prokaryotes are the most diverse and widespread

Question 25

What do you know about the domain of archae

Answer 25

• coinsist of prokaryotes
• live in earth’s extreme enviorments

Question 26

What do you know about the domain of eukarya

Answer 26

• consists of eukaryotes
• 4 kingdoms: Protists, plantae, fungi and animalia

Question 27

What do you know about the 4 kingdomes of eukarya

Answer 27

Animalia - includes animals who obtain food by ingestion, are mrotile and are made up of cells that lack rigid walls
Protists - Single-celled organisms that make food by photosynthesis and live in moist habitats (ex. Algae)
Plantae - Consists of plants who produce food by photosynthesis, have rigid walls made of glucose and are a multicellar eukaryote
Fungi - includes molds, yeast and muchrooms who mostly decompose

Question 28

What are Charles Darwin main points

Answer 28

1. the ideo of evolution
2. natural selection

Question 29

What is the idea of evolution

Answer 29

Its main idea talks about the unity and the diversity of life

Question 30

WHat is natural selection

Answer 30

it’s the process through which populations of living organisms adapt and change
- Unequal reproduction succes
- enviorment slects for individuals with advantageous traits