MRS GREN
Microscopes
Adaptations
Cells
Food chains/webs
100

What does the M in MRS GREN stand for?

Movement

100

What is the part of a microscope that you look down?

Eye piece

100

Name ONE example of a physical adaptation

Spines, legs, arms, hair, teeth, mouth, etc.

100

What are cells?

The building blocks of life

100

Where does all energy come from in a food chain?

The sun

200

What do the two Rs in MRS GREN stand for?

Respiration and reproduction?

200

What is the name of the lens that can be swapped for higher magnification?

The Objective Lens

200

Name two examples of a behavioural adaptation

Fighting, nocturnal, hunting, dancing, etc.

200

What is the purpose of a cell membrane?

Letting water and nutrients in to the cell and waste out of the cell

200

What do the arrows represent in a food chain?

The flow of energy
300

What process do plants do to obtain food (Nutrition)?

Photosynthesis

300

What is the magnification of an eyepiece lens?

10x

300

How many legs do insects have?

6

300

What organelle is known as

"The powerhouse of the cell"

Mitochondria

300

In the food chain:

Grass ----> rabbit ----> fox ----> bear

What animal is the primary consumer?

The rabbit.
400

What is an example of sensitivity in plants?

Moving to light, growing roots into the ground etc.

400

If I am using the 40x lens and the 10x eyepiece lens. What is my TOTAL magnification?

400x

400

What is the difference between a behavioural and structural (physical) adaptation?

Structural = physical feature

Behavioural = the way an animal acts or behaves

400

What is the role of a large vacuole in plant cells?

Structure, support and water storage.
400

What is the role of a decomposer in an ecosystem?

Breaking down dead and organic matter. Recycling nutrients back into the ecosystem.

500

Under MRS GREN, what is a microbe that is NOT a living thing?

Viruses

500
How should we always carry a microscope when moving it?

Holding the arm and base.

500

If a peacock has a very large tail it can't fly as well and is more likely to get eaten. Why does it grow the tail?

Because if the peacock can survive with something that makes life challenging, it must be a very strong and healthy animal (very attractive for the ladies). 

500

What is an organelle/feature of fungi cells, but NOT animal cells?

Cell wall.

500

What are 3 things can throw an ecosystem out of balance?

Pollution, climate change, habitat loss, introduced species.