1. What are examples of muscle endurance activities/exercises? 2. Which sports require the most muscle endurance? 3. How many sit ups did you do for the Fitnessgram test last year? 4. Pick either arm strength, stomach strength, or leg strength. Explain why this group is important to keep strong.

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Explanation:

1.examples are Plank,Body weight squats,Walking lunges,Pushups 2. Weight-Lifting require the most muscle endurance.3. u shud do it urself .4.u shud pick.

Explanation: for the question  Explain why this group is important to keep strong.

Benefits of Muscular Strength and Endurance

Muscular strength and endurance are important for many reasons: Increase your ability to do activities like opening doors, lifting boxes or chopping wood without getting tired. Reduce the risk of injury. Help you keep a healthy body weight.

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 =