HW # 113- Chapter 10 Cornell Notes- due NEXT Friday 6/ 7 Warm up

HW # 113- Chapter 10 Cornell Notes- due NEXT Friday 6/7

Warm up

Take out your grasshopper lab. Read it over one more time. Write 3 sentences about what you read on your warm up page.

Week 35, Day One

Warm up Response 1) x

Homework Response/Check• Did you return your ZOO PERMISSION SLIP?

Goals for Today

• Scientific Drawings- Grasshopper

Grasshopper Dissection

Life Science

Arthropods

Arthropods make up the largest phylum of animals in theanimal kingdom. Arthropod means “jointed foot”. Allarthropods have jointed appendages. Arthropods alsohave segmented bodies and an external covering called an exoskeleton.

Insects

Insects are one type of arthropod. Insects have threebody regions: a head, a thorax, and an abdomen.

All insects also have six legs, one or two pairs of wings,one pair of antennae, and a pair of compound eyes.

Six Legs

Antennae

CompoundEyes

Parts Of The Head

Use the diagram below to identify the parts of the headon your grasshopper.

The grasshopper has 5 eyes, two compound eyes andthree simple eyes. The antenna are sensory organs located on the head.

Mouth Parts

Use the diagram below to identify the mouth parts on your grasshopper. As you identify each part, try and remove it with your tweezers.

The labrum is used to hold food. The mandibles are teethused to chew food. The maxilla are used to chew and taste food. The labium is used to hold food while it isbeing chewed. Now use the diagram below to locate theexternal structures on your grasshopper.

A grasshopper’s eardrum, or tympanum, is located belowthe second pair of wings on each side of the thorax.Locate the tympanum on your grasshopper using thepicture below. The tympanum is used for hearing.

tympanum

Like all insects, grasshoppers have six legs. The front pairare used for walking, climbing, and holding food. The middle legs are also used for walking and climbing. Thehind legs are used for jumping.

Grasshoppers breath through tiny holes in their abdomencalled spiracles. Try and find these tiny holes along eachside of the abdomen.

close up of

one spiracle

A female grasshopper has a longer abdomen than a malethat ends with a four pointed tip called an ovipositor.The ovipositor is used to lay eggs. Look and the end ofyour grasshopper’s abdomen and determine if it is amale or a female.