What are the 4 primary functions of the respiratory system?

1) exTchange of gas between atmosphere and blood

2) Homeostatic regulation of body pH

3) protection from inhaled pathogens and irritating substances

4) vocalization

Which sets of characteristics are likely to be found in a dichotomous key to identify these insects? Check all that apply.

What are the different types of molecules are important to life

Where is cyanide stored in a cell? 1) endoplasmic reticulum 2) mitochondria 3) vacuoles 4) nucleus

Which tissue type is responsible for the formation of goosebumps?

Ahmed and Gavin are playing both chess and checkers. The probability of Ahmed winning the chess game is 45%. The probability of Ahmed winning the checkers game is 0.36.

What did the shift from hunting and gathering to gardening lead to?

In the human body, oxygen is absorbed by the lungs and nutrients are absorbed by the small intestine. In a single-celled organism, this absorption directly involves the 1. nucleus 2. chloroplasts 3. cell membrane 4. chromosomes

The big chunks of earth's crust (plates) slowly moved around. This is called?

N your own words, describe an interaction between the hydrosphere and the geosphere

what are three functions that are directly controlled by the cell membrane