Comprehensive Business Planning for Startups

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What is the primary purpose of cookies on this website?

  • To share users' information with third-party providers
  • To track users' personal information
  • To make the site work as expected (correct)
  • To block users' access to certain features

What happens if you block functional cookies?

  • The website will not load at all
  • You will be logged out of your account
  • The website's functionality will be unaffected
  • Some services may not function properly (correct)

What do social media cookies enable you to do?

  • Access premium content
  • Make online purchases
  • Track your browsing history
  • Share content with your friends and networks (correct)

What kind of information do cookies store or retrieve?

<p>Information related to you, your preferences, or your device (B)</p> Signup and view all the answers

Why do the website owners respect users' right to privacy?

<p>Because they respect users' right to privacy (D)</p> Signup and view all the answers

What is the primary function of food energy in the body?

<p>To operate various organs and perform external work (B)</p> Signup and view all the answers

What percentage of energy is used by the skeletal muscle and heart under resting conditions?

<p>25% (C)</p> Signup and view all the answers

What is the concept that the body's energy is subject to?

<p>The law of conservation of energy (B)</p> Signup and view all the answers

What percentage of food energy is lost in feces and urine?

<p>5% (B)</p> Signup and view all the answers

What is the primary function of the liver and spleen in terms of energy usage?

<p>To operate various organs (A)</p> Signup and view all the answers

What is the percentage of energy used by the brain under resting conditions?

<p>19% (D)</p> Signup and view all the answers

What is the assumption made in the application of the first law of thermodynamics in the human body?

<p>No food or drink is taken and no feces or urine is excreted during the interval of time considered (B)</p> Signup and view all the answers

What is the formula for power in physics?

<p>P = Δw/Δt (C)</p> Signup and view all the answers

What does the equation Δu = ΔQ - Δw represent?

<p>The change in stored energy in the body (C)</p> Signup and view all the answers

What happens to the stored energy in the body when it is not doing any work and is at a constant temperature?

<p>It decreases (B)</p> Signup and view all the answers

What is the efficiency of the human body as a machine?

<p>Usually around 20% (C)</p> Signup and view all the answers

What is the unit of energy value of food referred to by nutritionists?

<p>Kilocalorie (C)</p> Signup and view all the answers

What is the maximum work capacity of the human body dependent on?

<p>The rate of oxygen consumption in the working muscles (D)</p> Signup and view all the answers

What is the main characteristic of homeothermic animals such as birds and mammals?

<p>They can control their body temperature despite environmental changes (C)</p> Signup and view all the answers

What is the rate of change of stored energy in the body equal to?

<p>ΔQ/Δt - Δw/Δt (C)</p> Signup and view all the answers

What is the body's basic source of energy?

<p>Food energy (D)</p> Signup and view all the answers

What happens to the body temperature of a deceased person after death?

<p>It decreases at a predictable rate (D)</p> Signup and view all the answers

What can be estimated using the body temperature of a deceased person?

<p>The time of death (C)</p> Signup and view all the answers

What is the normal human body temperature?

<p>37°C (D)</p> Signup and view all the answers

What is the range of variation in body temperature for a single individual?

<p>±0.5°C (C)</p> Signup and view all the answers

What is the name of the part of the brain that controls body temperature?

<p>Hypothalamus (D)</p> Signup and view all the answers

What is the primary mechanism of heat loss after heavy exercise?

<p>Evaporation (A)</p> Signup and view all the answers

What factor does NOT affect body temperature?

<p>Eye color (C)</p> Signup and view all the answers

How does the body receive radiant energy from its surroundings?

<p>Through radiation (D)</p> Signup and view all the answers

According to the equation, what is the value of Kc when the wind speed is 5 m/sec?

<p>11.20 (C)</p> Signup and view all the answers

What is the primary mode of heat loss under normal temperature conditions and in the absence of hard work or exercise?

<p>Radiation and convection (B)</p> Signup and view all the answers

How much heat is carried away when 1 liter of water evaporates from the body?

<p>580 kcal (B)</p> Signup and view all the answers

What percentage of the body's heat loss is due to respiratory heat loss under typical conditions?

<p>14% (C)</p> Signup and view all the answers

What is the amount of heat lost per hour due to perspiration, even if the body does not feel sweaty?

<p>7 kcal/hr (A)</p> Signup and view all the answers

What is the special ability of the body in terms of heat regulation in the hands and feet?

<p>To select the path of returning blood (D)</p> Signup and view all the answers

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