Lab Practical- Bio

Which of the following are the premises for Charles

Darwin’s theory of evolution?

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* There is inheritable **variation** in all species


* There is a tendency for **overpopulation** in all species
* There is a competition for the necessities of life and only the **fit survive** to reproduce

==(V.O.S.F)==

How do inheritable variations become established in a population?

* mutations change gene sequence
* Crossing over between homologous or partner chromosomes
* The union of one egg and one sperm

What type of selection pressure displays a graph that moves towards one of the extremes, while the other extremes become extinct ( first) Selection pressure on packet

Direction Selection

Which selection pressure eliminates individuals in both extremes and favors those near the norm, or middle?

Stabilizing Selection

What type of selection pressure eliminates the norm and is usually the result of some catastrophically geological

event ?

Disruptive Selection

Allopatric Speciation

New Species develop in different geographical areas after

the population has been physically separated

Sympatric Speciation

Driven by development of characteristics that give

species the ability to feed on different food sources

What language is the scientific name of all organism

written in?

Latin

Carolus Linnaeus

Created the modern Taxonomy system

John Ray

Determined that nature naturally grouped organisms into species

The Genus name is..

Capitalized

The Species name is..

Lowercase

When writing the scientific name of an organism, the name is either italicized or underlined because Latin is a foreign language.

True False

True

The science that deals with the classification of animals

Taxonomy

**Denmark's, K**ing,**P**lays, **C**hess, **O**r, **F**ights,**G**reen, **S**nakes

Domain

Kingdom

Phylum

Class

Order

Family

Genus

Species

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What domains do taxonomist classify prokaryotes

Bacteria, Archaea

Methanogens

Environments with no oxygen

Thermophiles

Hot environments

Halophiles

High salt environments

what domain do algae belong in

Eukarya

All Algae are green

False

What color of algae would spirogyra be classified as?

Green

What color of algae would diatoms be classified as?

Brown

Algea are classified based on color as well as structural characteristics

False

Algae are terrestrial organisms and need specialized vascular tissue for the conduction of water and food

False

What Bacteria shape is shown below?

Coccus/Coci

What bacteria shape is shown below?

Bacilli/Bacillus

What bacteria shape is shown below?

Spirillum

grashopper anatomy

A-antenna

B-eyes

C-Femur

D-Tibia

E-Wings

F-Oviposter

G-Abdomen

H-Thorax

J-Legs

K-Head

Female and Male Grasshopper

A- female

B-Male