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stealth61 [152]
3 years ago
13

What transports oxygen to cells in an arthropod?

Biology
2 answers:
AfilCa [17]3 years ago
6 0

The respiratory system is separate from the circulatory system. It is a complex network of tubes that delivers oxygen-containing air to every cell of the body.

Answer: tracheal tubes

noname [10]3 years ago
6 0
The respiratory system of insects (and many other arthropods) is separate from the circulatory system. It is a complex network of tubes (called a tracheal system) that delivers oxygen-containing air to every cell of the body.
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Lab: Exercise and Homeostasis Lab Report
Contact [7]

Answer:

The question that was trying to be answered in this lab was “How does exercise affect a person’s heart rate, breathing rate, and perspiration level?” Based on this question, the hypothesis that was formed was “If effects of exercise and exercise are related, then exercising will increase heart rate, breathing rate, and perspiration level”.

Background Information: THIS SHOULD BE PART OF YOUR INTRODUCTION

Before starting the lab report, the important background information that was collected was very helpful while performing the lab. For example, homeostasis is defined according to Dictionary.com as “the ability of the body to maintain relatively stable internal conditions”. Homeostasis in the body is maintained through three vital organs, as mentioned before, the kidneys, liver, and brain. These regulate the temperature, iron content in our blood, retention, and production of energy and overall blood composition. This was helpful because the whole lab report was based on homeostasis and the effect that it had on exercise. Another piece of information that proved to be very important explained the different types of changes that occur during exercise to help the body adjust to maintain equilibrium. These types of changes are perspiration and blood level.

When researching the typed of mechanisms that are used to maintain a constant body temperature, the information that was found was that “our bodies have nerve cells called thermo receptors that measure temperature of our internal body and external environment” (Godbole). When these nerve cells are stimulated by changes inside our bodies and in the world outside, they send their information to the brain, where it is mostly the job of the medulla oblongata to make changes to keep our internal body temperature constant.  

Exercise helps keep you fit and healthy by strengthening your muscles and making your heart beat faster. Your muscles, lungs, and heart all work together to move your body and make sure you are getting enough oxygen. This results in an increase in your breathing rate, or rate of ventilation. Your breathing rate is increased due to the fact that “your muscles are working harder then when they are at rest. This means that they need oxygen, along with sugars to complete cellular respiration.” (Why Does Your…) Your heart rate increases so that it can move the oxygen to the target cell in the muscles you are using quicker.

Materials and Methods:

Materials:

People to exercise

A clock or stop watch

Procedure:

Choose one volunteer to complete jumping jacks at a pace that can be maintained for eight minutes. Make sure the volunteer is inactive for a few minutes before the experiment begins.

Measure the heart rate by taking his or her pulse; you can do this one of two ways:

Radial Pulse

Carotid Pulse

Multiply the number of beats in 15 seconds by 4 to calculate the beats per minute. Record the data in the table below the 0 minutes box.

Measure the person’s perspiration level from 0 to 5: (0 = none; 5 = droplets dripping down the face). Note this observation in the table.

Have the volunteer do jumping jacks for 2 minutes. After 2 minutes, measure the heart rate, breathing rate, and perspiration level (refer to steps 2 through 5), and record the data. Measure the pulse, breathing and perspiration levels as quickly as you can so that the volunteer can resume exercise. Do not have volunteer wait while you do the calculations and enter the data.

Repeat step 6 three more times (remember, 2 minutes each at a time, totaling 8 minutes) and record your data at each point.

After the final recording of the dependent variables, wait one minute with the volunteer at reset.

Then measure all of the variables again. Record this data under the “9 Time (Min.) Box”.  

Data and Observations:

Table 1: Effect of Exercise

Total Time

(Minutes)

Heart Rate

(Beats per Minute)

Breathing Rate

(Breaths per Minute)

Perspiration Level

(Scale of 0 to 5)

0 – Prior to Exercise

84

36

0

2 Minutes

128

52

0

6 Minutes

96

36

1

8 Minutes

120

40

2

9 Minutes

144

44

2

Table 1: shows the heart rate, breathing rate and perspiration level of exercisers over nine minutes

Table 2: Effects of Exercise: Class Averages

Variables Measured

Group

1

Group

2

Group

3

Group

4

Group

5

Averages:

Heart

Rate

Start:

68

104

104

98

84

73

Finish:

38

152

120

120

144

115

Breathing Rate

Start:

Explanation:

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2 years ago
What do Astronauts need to take on the moon so that plants could grow in a lunar plant growth chamber
Dmitry_Shevchenko [17]

Explanation:

What is the name of this website or the book?

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3 years ago
Sleeping is an effect of __________, but agitation may cause a person to wake up.
Alekssandra [29.7K]
The answer to this question is C. Depressants
8 0
3 years ago
Read 2 more answers
collagen is a protein found in connective tissue in animals and lysozyme is a protein that breaks down bacterial cell walls. Aft
Stells [14]
<h2>The Protein Structure</h2>

Explanation:

  • Protein structure is the three dimensional game plan of particles in an amino corrosive chain atom.
  • Proteins are polymers explicitly polypeptides framed from groupings of amino acids, the monomers of the polymer.By show, a chain under 30 amino acids is regularly distinguished as a peptide, rather than of a protein.  
  • All proteins have primary, auxiliary and tertiary structures yet quaternary structures possibly emerge when a protein is comprised of at least two polypeptide chains.
  • The collapsing of proteins is additionally determined and fortified by the arrangement of numerous bonds between various pieces of the chain.
  • Connective tissues for the most part have barely any cells and extensive extracellular filaments including collagen and elastin.
  • Collagen is the absolute most  abundant protein in the creature body and establishes roughly 25–35% of the entire body content.
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3 years ago
Paul, sean, and mike have each consumed four beers in the last two hours. paul weighs 220 pounds, sean weighs 165 pounds, and mi
Goshia [24]
Sean, who weighs the least of the three, will have the highest blood alcohol concentration (BAC).

The less a person weighs, the more they will be affected by a given amount of alcohol. People of the same weight, even the same gender, individuals with a lower percentage of body fat will have lower blood alcohol concentration than those with a higher percentage of body fat.

Hope this helps! :)
3 0
3 years ago
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