Science that studies life

Its graphed in the Y axis, in an investigation report.

During this mitotic phase the centromeres splits apart and the chromatid pairs from each chromosome separate from each other

The only macromolecule that gives 9 cal/gram and have as main function to store energy.

The circulatory system transports blood to deliver important substances such as oxygen and nutrients to cells, and to remove wastes such as carbon dioxide.

Type of cells with a simple internal structure, that lack organelles surrounded by membranes, and therefore, lack a true nucleus.

Its graphed in the X axis, in an investigation report.

A structure located on top of each testis. In here the sperm will complete their maturation.

The action of enzymes in breaking down large molecules into small molecules that then can be absorbed by cells.

Heart, blood, and blood vessels.

A thin, flexible boundary between a cell and its environment, composed of a phospholipid bilayer, that helps control what enters and leaves the cell. It is mainly responsible of maintaining homeostasis by means of its selective permeability.

Is a constant condition for all the trials in an experiment.

The phase of menstrual cycle characterized by the shedding of blood, tissue fluid, mucus and epithelial cells from the endometrium.

3. Organ in which chemical digestion is completed and most of the nutrients are absorbed by fingerlike structures called villi.

The human heart is made of cardiac muscle, composed of two upper chambers called atria, and two lower chambers called ventricles.

Atom
Molecule
Organelle
Cell
Tissue
Organ
Organ System
Organism

The gold fish in one tank are fed normally once a day. The gold fish in a second tank are fed twice a day, and in a third tank are fed four times a day during a six week study. The fishes’ weight is recorded daily.
A= The weight of fish.

Masculine gland that contributes an alkaline solution to the fluid to neutralize acidic conditions sperm might encounter in the urethra and the female reproductive tract.

4. Has two main functions: produce enzymes that digest carbohydrates, proteins and fats, and it also produce hormones.

Arteries transport blood away from the heart (usually oxygenated blood, except the pulmonary arteries). Veins transport blood towards the heart (usually deoxygenated blood, except the pulmonary veins). Capillaries are where gas and substance exchange occu

Female frogs lay hundreds of eggs in standing water

The gold fish in one tank of are fed the normal amount of food once a day. The gold fish in a second tank are fed twice a day, and the fish in a third tank are fed four times a day during a six week study. The fishes’ weight is recorded daily.
A= The firs

If a woman starts the flow phase of her menstrual cycle on May 10th when will she expect her ovulation day to happen

Foods such as breads, legumes, rice, pasta and starchy vegetables provide vitamins, minerals and fiber known as

Arteries have a thick layer of smooth muscle, they are strong and elastic. Veins have a thinner layer of smooth muscle, and they have valves. Capillaries are microscopic, made of one single layer of endothelial cells.