Predict relationships among events, objects, and processes.

Question 1

Comparing Magnitude

Answer 1

Human body has many tissues, cells, and organs. Each component of the body is a different size and scale. Ex:The diameter of a human hair is measured in micrometers. Height of a human measured in meters, the weight of an elephant measured in Kilograms. Every measurement requires a unit, and unit identifies the scale of measurement Ex: Kilograms, grams, or miligrams. Its important to understand concept of scale to compare the magnitude or size of objects and processes.

Question 2

Determining Casual Relationships and Sequence I

Answer 2

Are difficult to determine , but data can suggest cause-and-effect relationship between two variables. Scientific studies can suggest causal relationships between variables. Ex: include smoking and emphysema, high blood pressure and vascular disease, alcohol consumption during pregnancy and fetal alcohol syndrome.

Question 3

Determining causal relationships and sequence II

Answer 3

Determining a causal relationship can also involve determining the sequence of events that leads to the consequence. Ex: If your body temperature increases above 37 degrees Celcius (98.6 degrees Farenheit), your nerve signals send a signal to your brain. The brain then sends a signal to your sweat glands and you begin sweating. Also, how the body maintains a proper level of blood glucose. As glucose rises, the pancreas releases insulin. Insulin allows cells in the body to take in glucose. If blood glucose levels are too low, glucagon is released, causing the liver to breakdown glycogen into glucose.