7G ScienceT1W11

Plan of the week Monday/Tuesday

Quiz Folders back Variation—finish PPT –T1W11 4 Nov Variation Exercise—arm span/height Variation:

http://www.bbc.co.uk/bitesize/ks3/science/organisms_behaviour_health/variation_classification/revision/3/

Monday/Tuesday Variations/Vertebrates continued--

WednesdayNatural Selection and Selective Breeding from BBC KS3 BitesizeVariation and classification REVISION from BBC KS3 Bitesize

Habitats—let’s design a new habitat!!! Habitat PPT

Design an ad for a frog to rent out a room in his habitat-iLearn

Classifying Assignment-iLearn

Essential Questions Why are variations in a species inherited?

Learning Objectives Identify classes of vertebrates/invertebrates

Describe and investigate examples of variation within species

The presence of differences between living things of the same species is called variation.

Individuals of the same species can reproduce to make more individuals of the same species.

Some of the features of the different organisms in a species show continuous variation, and some features show discontinuous variation.

Some variations within a species are inherited, and some variation are due to the environment.

Variation in a characteristic that is a result of genetic inheritance from the parents is called inherited variation.

Variation caused by the surroundings is called environmental variation.

Some features vary because of a mixture of inherited causes and environmental causes.

Vocabulary Habitat

Variation

Population

Ecosystem

The arthropod group includes all invertebrates which have a skeleton on the outside of their bodies. The exoskeleton is made of chitin and the legs are jointed. This group is so large that it has been divided again into four sub-groups - insects, crustaceans, spiders and myriapods.

Insects: All insects have three parts to their body - the head, the thorax and the abdomen. The insects have three pairs of legs attached to the thorax. Some insects, such as the dragonfly, have two pairs of wings. Others, such as the housefly, have only one pair of wings. A few insects, such as the flea, have no wings at all.

Crustaceans: The body is made up of many segments. There are antennae on the third segment and jaws (mandibles) on the fourth segment. Most crustaceans have a hard, protective carapace on their backs. Examples of crustaceans are the shrimp, the lobster and the woodlouse.

Myriapods: The myriapod sub-group is represented by millipedes and centipedes. Millipedes are herbivores while centipedes are carnivores. The millipede has two pairs of legs attached to each segment of its body. It does not really have 1,000 legs! In fact millipedes can only have up to 710 legs. The centipede only has one pair of legs per body segment. A centipede may have between 28 and 354

Arachnids have paired, jointed appendages (parts that are attached to the main body), a hardened exoskeleton (exo means "outer"), a segmented (divided into parts) body, and a well-developed head. Their body consists of two main parts: a fused head and thorax, and an abdomen. There are six pairs of appendages on the body: the first pair are clawlike fangs near the mouth used for grasping and cutting; the second pair serve as general-purpose mouth parts that may be modified for special functions; and the last four pairs of appendages are the walking legs.

Most arachnids live on land and breathe by means of book lungs (socalled because their thin membranes are arranged like the pages of a book) or by tracheae (small tubes that distribute air from the outside throughout the body), or both. Most are flesh-eating predators. They feed by piercing the body of their prey and directly consuming its body fluids or by releasing digestive secretions that predigest the food before they eat it.

ReviewOpen Door website

http://www.saburchill.com/chapters/summary01.html#Groups

Classification

Moving on in our Kingdoms

Plant Kingdom includes bryophyta, liverwort, gymnosperms, angiosperms (flowering plants), Pteridophyta (ferns).

The vertebrates include fish, amphibia, Repitilia, Aves (birds), and mammals.

Endangered Species Video Ant Videos 7G 7G Endangered Species

We are going to go between vertebrates/variations

Maui's dolphincritically endangered

4.1 Different speciesThere are 32 species of dolphin

Fishing and pollution have brought some species close to extinction

Bottlenose dolphinnot endangered

Spotted dolphinnot endangered

White-sided dolphinnot endangered

Why are these dolphins different species?

Animals that produce fertile offspring belong to the same speciesSome closely related species can interbreed but the offspring or not fertile

Leopon- Lion and leopard

Grolar- Grizzly and polar bear

Liger

Cama- camel and lima

Jaglion

Ant video7G Zorse

zonkey

zony

4.1 Rats

Humans have made it easier for some species to survive

•Ant Video 7G Rat Attack

Are these animals endangered

http://www.arkive.org/aye-aye/daubentonia-madagascariensis/video-08d.html?movietype=wmMed

Rats will eat anything and have many natural predators

4.1 Rats

Essential Questions Why are variations in a species inherited?

Learning Objectives Identify classes of vertebrates/invertebrates

Describe and investigate examples of variation within species

The presence of differences between living things of the same species is called variation.

Individuals of the same species can reproduce to make more individuals of the same species.

Some of the features of the different organisms in a species show continuous variation, and some features show discontinuous variation.

Some variations within a species are inherited, and some variation are due to the environment.

Variation in a characteristic that is a result of genetic inheritance from the parents is called inherited variation.

Variation caused by the surroundings is called environmental variation.

Some features vary because of a mixture of inherited causes and environmental causes.

Populations—HW due Monday 11 Nov 2013

Read Science text 3 from page 65 to 85 and take notes be ready Monday to:

Explain factors affecting population including human population.

Show how populations can change with time. Suggest the needs of an increasing human population.

Discuss positive and negative influence of humans on the environment.

e.g. the effect on food chains, pollution and ozone depletion.

Understand the problems of obtaining enough fresh air, obtaining enough living and enough clean water, space.

Describe and investigate some effects of human influences on the environment.

Understand that there are problems associated with intensive farming.

Brainpop Vertebrates

http://www.brainpop.com/science/diversityoflife/vertebrates/preview.weml

Variations continued

http://www.bbc.co.uk/bitesize/ks3/science/organisms_behaviour_health/variation_classification/revision/4/