Life Science Week 1

Life Science Week 1

Biology

• knowledge of life

What is taxonomy?

• A taxon is a group with similar traits

Multiple Choice

How many types of living things have scientists identified

• 2 million

• 20 million

• 200 million

• 2 trillion

What is Pangea?

• The idea presented by Alfred Wegener that there was once a super continent

• The theory of the continental drift

• This is no longer a theory.

• The continental drift was caused by magnetic forces pushing the continents apart

Multiple Choice

Pangea is the Idea that

• The earths land does not drift apart

• the earths land was once a super continent

• the earths land is still a super continent

• earths land was once covers bywater

Important traits

• The structure of an organisms cells

• How creatures get their food

• How creatures reproduce

Eukaryotes vs prokaryotes

• Eukaryotes have well defined nucleus surrounded by a membrane

• Prokaryotes have just one cell example bacteria and archaea

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The Plant Kingdom

You have to make your own food with the use of sunlight.

Plants produce a substance called chlorophyll

Two types of plants:

1. Vascular plants: have tubes inside to move water and other fluid from the roots to the leaves. Most of out food comes from these.

2. Non- vascular plants never flower. Only grow when it is wet ex moss algue.

Multiple Choice

Members of the plant kingdom can

• make their own food

• have many cells

• move around independently

• absorb nutrients from an attached surface

The Animal Kindom

• Human , fish bugs birds snakes and snails

• vertebrates are animals with a backbone

• invertebrates are animals without a backbone

The Fungi Kingdom

• Fungi absorb nutrients form the surface it is attached to.

• You can find fungi on food that was left in the frig for to long

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• Chromista found in watery habitats and have mostly only one cell

• Protozoa water loving are unicellular

• Bacterica one cell with a cluster of gentic material

• Archaea one one cell, need a mircoscope to see it

• Viruses have no cells and can cause diseases by infecting a host.