Starfish Dissection

Outside Observations:

- red/pink

- white dots

- sort of "smushy"

Inside Observations:

- yellow/orange mush

- pink on the inside

- stomach is visible

 Bottom of Starfish (mouth in the center)

 Leg of Starfish

Inside of leg of Starfish with gonads visible

Inside the bottom of the Starfish

Frog Dissection

 webbed feet

 inside organs

 view of inside organs

 close up

 opened mouth

 view of teeth

 eyelid

 first layer of skin revealing abdomen

underside

top side

GRASSHOPPER DISSECTION

Questions that Mrs. Phillips asked:

TARSUS (where scalpel is pointing):

FEMUR (where scalpel is pointing):

TIBIA (where scalpel is pointing):

ABDOMEN:

HEAD:

INTERIOR VIEW:

Golden Tortoise Beetle

Interesting Fact:

The magnificent golden tortoise beetle is commonly found in eastern North America and measures five to seven millimeters in length. The beetle has an extraordinary golden hue but it can change its color as well—transforming its outer covering so it becomes transparent. This color change reveals the rest of the beetle underneath, which is black with red spots, like a ladybug. Once these beetles are collected and removed from their natural habitats, they quickly lose their color, turning mud brown. This is because they lose their liquid layer, which is formed by dew on the leaves they live on. This liquid layer gives the illusion of a golden color. Like a chameleon, it can change the golden hue to different colours to match its environment.

How It's Survived:

The camouflage trick that is has adapted, to change colour, has helped it hide and causes it's success in its environment.

How It Is Helpful to Environment:

It isn't! It's a pest; it feeds off of farmer's sweet potatoes and seeds. It kills potatoes!

Cnidaria

Feeding:

•  feed in several ways
• predation on corals, absorbing dissolved organic chemicals, filtering food particles out of water, getting nutrients from algae with their cells
• depend mostly on absorbing dissolved nutrients uses tentacles to capture food
• tentacles have rows of cilia whose beating creates currents that flow towards the mouth

Respiration:

• there are no respiratory organs and cells layers absorb oxygen and expel carbon dioxide into the water

Circulation: 

• they lack a circulatory system because they do not need one

Excretion:

• canal like cavity in they bodies for ingestion, digestion
• gas is eliminated by diffusion
• solid waste is dissolved 

Response/ Movement:

• muscle surrounding cavity relaxes and contracts, causing it to move back and forth
• as water moves in one direction, it moves in opposite way

Reproduction:

• sexual and asexual
• assexually with diffusion
• sexually with the ova and sperm being released from the gonads and gastroderms

Flower Dissection

PART ONE

 Labelling:

Ovary cut in half:

- looks like a tube like structure running up it

Pollen close up:

-look like little pumpkin seeds with a line running up the middle

PART TWO

-pollination is sexual reproduction in plants. It is how the pollen is transferred to the female egg.

-pollen, anther, stigma, ovule

-self fertilization occurs when the pollen from an anther fertilizes the eggs on the same flower

-cross-fertilization occurs when the pollen is transferred to the stigma of an entirely different plant

-this plant in an angiosperm because only angiosperms can bear fruits or flowers

Monocot or Dicot

I did the opposite of what I had in post #1 so I could compare them.
So for example, if I had a dicot leaf in my first post, I'll post a monocot leaf in this one.

Dicot Root

(does not have the "T" that the monocot root has)

Monocot Stem

(the little "skulls" are scattered throughout, whereas in the monocot stem it was along the edges)

Dicot Leaf

(vascular bundle seems smaller and the circles along the edge are smaller)