This scientist used a compound microscope to discover tubercle and cholera bacilli.

This is the common type of microscope used in classroom setting.

It is a part of the microscope that connects the eyepiece to the objective lenses.

The objective lens that gives the highest magnification, usually 97X to 100X, and is used wet either with cedar wood oil or synthetic oil.

If treated properly, a microscope could last for how many years?

When moving your microscope, always carry it with one hand.

The objective lens should not touch the specimen.

If the magnification power of the eyepiece is 10x, and the magnification power of HPO is 40x, how much is the total magnification power?

Microscopes should be enclosed in a _________ cover or stored in their case.

_______ are group of cells of the same kind.

The organ system of the body responsible for disposal of metabolic wastes, regulation of osmotic balance of food.

What are the two organ system of a plant?

At cellular level, organisms can be classified into two:

What are those two categories?

What is the correct sequence biological levels of organization from smallest to biggest?

What is the building block of living things?

Who is the first person to see living cells?

The third postulate of the cell theory states that cells arise from what?

These are unicellular organisms that lacks membrane-bounded structures.

These are organisms whose cells have a nucleus and other organelles enclosed by a plasma membrane.

The part of the cell that is considered to be the "powerhouse" where cell respiration occurs.

These are suicide sacs that contain digestive enzymes.

This part of the call is made up of phospholipids and proteins that encloses all the other organelles.

Present in an animal cell, but not present in a plant cell. What is that part?

Present in a plant cell, but not present in an animal cell. What are these parts?

What are the two kinds of reproduction?

This type of asexual reproduction is also called multiple fission.

It refers to the process of union of the sperm cell and the egg cell.

What do you call the process of sexual reproduction among microorganisms?

The release of pollen grains from the anther to find their way to the stigma is the process called ___________?

This is a branch of science concerned with the interrelationship of organisms and their environment.

What are the two components of an ecosystem?

When there is similar ecosystems in the same area, it forms what?

These living organisms serves as the producer in the ecosystem.

All biotic and abiotic components are interrelated.

Comes from the Greek word that means "living together" in a close, long term relationship.

A symbiotic relationship where one organism benefits from the association and the other is harmed.

A symbiotic relationship where both of the organisms benefit from their association.

A symbiotic relationship relationship wherein one organism benefits, and the other one neither harmed nor benefits.

A non-trophic interaction wherein two or more organisms compete for a limited resources.

It is celebrated worldwide every 22nd of March to remind the world of the importance of fresh water.

Ocean water is a water type that covers __% of Earth's water resources.

A phenomenon wherein corals expel the algae that live within their tissues that provides food for them.

It means using the Earth's limited resources wisely so that they don't run out.

We shouldn't maintain the ecological balance of our nature.