A seventh grade class is studying the solar system. A small group of students wanted to expand their studies to include the formation of black holes. The classroom teacher meets with this group on a daily basis to discuss their progress and offer additional help. This is an example of Tier in the RtI model. a. I b. III c. All tiers d. IV

The correct answer is letter "B": III.

Explanation:

The Response-to-Intervention (RTI) model is an educational approach provided to low-grade students by which teachers attempt to find out what children might be struggling with and based on the issues found teachers take different actions that could help students and their different forms of learning.

The RTI model is divided into three (3) tiers: Tier I (The Whole Class), Tier II (Small Group Interventions), Tier III (Intensive Interventions).

In Tier III, children require intensive intervention because they have gone through the previous two tiers with no results. Intensive intervention requires everyday sessions tailored for students and continuous evaluation to determine if additional help could be necessary.

Thus, the small group of the class that is receiving specialized classes on Solar System everyday, represents educational help at the tier III in the RTI model.

less than one you can't create energy

it is given that trillions of microbes make up to 1% to 3% of the body mass.

let's take average of this percentage: 2%

consider the average mass of the human body as 70 kg.

then, trillions of microbes would have mass  

therefore, 100 trillion micro-organisms would weigh:

this is an approximate value and could change depending on the mass of the human body and percentage of the microbes present in it.

average mass per microorganism =