Category: Science

Best Fertilizer for Corn

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Experiment
You want to determine which fertilizer makes corn plants grow the tallest, Miracle Grow, Scotts,
or Pennington. You plant rows of corn and treat each row with a different type of fertilizer. You
measure the average height for each row after 10 weeks.
Questions
Name the Independent and Dependent Variables from the experiment above.
Name two good Control Variables you would keep track of in this experiment.
This experiment needs a Control Experiment added to it. Is it a Positive Control or Negative
Control that you need to add? Describe what you would do.
Create a hypothesis for this experiment.

Tutoring and Test Taking

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Experiment
You want to see how much additional tutoring helps Biology students. You choose 10 students
at random from a Biology class and assign them 2 hours of extra tutoring each week. You then
give all students a test and determine the average scores for the tutoring and non-tutoring groups.
Questions
Name the Independent and Dependent Variables from the experiment above.
Name two good Control Variables you would keep track of in this experiment.
This experiment already has a Negative Control Experiment built into it. What was the Negative
Control Experiment?
Create a hypothesis for this experiment.

 

Tutoring and Test Taking

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Experiment
You want to see how much additional tutoring helps Biology students. You choose 10 students
at random from a Biology class and assign them 2 hours of extra tutoring each week. You then
give all students a test and determine the average scores for the tutoring and non-tutoring groups.
Questions
Name the Independent and Dependent Variables from the experiment above.
Name two good Control Variables you would keep track of in this experiment.
This experiment already has a Negative Control Experiment built into it. What was the Negative
Control Experiment?
Create a hypothesis for this experiment.

 

Disinfecting spray kills off more germs

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Experiment
You want to determine which disinfecting spray kills off more germs, Clorox or Lysol. You
spray two counters with juice from raw chicken. Then you spray one counter with Clorox and
one with Lysol. After the solutions dry, you wipe a cotton ball on the Clorox counter and then
wipe it onto a petri dish. You do the same with the Lysol counter and wipe it onto a separate
petri dish. You let the plates grow bacteria for several days, then count which plate has more
colonies of bacteria.
Questions
Name the Independent and Dependent Variables from the experiment above.
Name two good Control Variables you would keep track of in this experiment.
This experiment needs a Positive Control Experiment. (This means at least one more counter
and petri dish.) Describe what you would do to confirm that you can measure your experiment is working as expected.
Create a hypothesis for this experiment. Remember that a good hypothesis doesn’t have to be right, it just has to follow the rules. (Which spray will kill off bacteria best?)

Disinfecting spray kills off more germs

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Experiment
You want to determine which disinfecting spray kills off more germs, Clorox or Lysol. You
spray two counters with juice from raw chicken. Then you spray one counter with Clorox and
one with Lysol. After the solutions dry, you wipe a cotton ball on the Clorox counter and then
wipe it onto a petri dish. You do the same with the Lysol counter and wipe it onto a separate
petri dish. You let the plates grow bacteria for several days, then count which plate has more
colonies of bacteria.
Questions
Name the Independent and Dependent Variables from the experiment above.
Name two good Control Variables you would keep track of in this experiment.
This experiment needs a Positive Control Experiment. (This means at least one more counter
and petri dish.) Describe what you would do to confirm that you can measure your experiment is working as expected.
Create a hypothesis for this experiment. Remember that a good hypothesis doesn’t have to be right, it just has to follow the rules. (Which spray will kill off bacteria best?)

The Nervous And Respiratory Systems

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1. Discuss the direct effects of stress upon the nervous system.
2. Choose a lobe of the brain and describe how it affects/controls an average day in your life.
3. List and describe three different types of nervous receptors. Be sure to explain where each type of receptor can be found in the body.
4. Describe the accessory muscles of the respiratory system and how they affect the volume of the thoracic cavity.

 

 

 

The Impacts Of Physical Activity

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Regular activity and exercise have been proven to positively affect health and well-being, including the improved function of body systems like the nervous system. Research your preferred activity or exercise and make notes of the impacts to the respiratory system, the peripheral nervous system, and the brain if you were to engage in this activity regularly.
In your initial post:
For the initial discussion response, share some specific ways that engaging in a moderate level of activity or exercise will impact your respiratory system (for example: consider possible impacts on lung compliance, respiratory volume, or oxygenation of body tissues). How does this activity affect the nervous system? Are there any benefits to the autonomic nervous system? What do you think is the optimal duration and frequency of this activity in order to improve health outcomes?

 

 

Nervous And Respiratory Systems Drawings

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Draw a flow chart identifying the components of the nervous system. Include these items and specify where the brain, spinal cord, cranial nerves, and spinal nerves fall in the flow chart:
Central nervous system
Peripheral nervous system
Somatic nervous system
Autonomic nervous system
Parasympathetic nervous system
Sympathetic nervous system
Draw an image of the Central Nervous System (CNS) structures and label the major nerve plexuses of the body. Include these labels:
Brachial plexus
Brain
Cervical plexus
Sacral plexus
Spinal cord
Draw a neuron and identify the major structures:
Axon terminal
Cell body
Dendrites
Myelin sheath
Node of Ranvier
Nucleus
Draw a pair of lungs inside the thoracic cavity of a torso and label the anatomy associated with the upper and lower respiratory system.
Alveoli
Bronchioles
Diaphragm
Epiglottis
Larynx
Left lobes
Nasal cavity
Nasal conchae
Nasal vestibule
Oral cavity
Parietal pleura
Pharynx
Primary bronchi
Right lobes
Secondary bronchi
Tertiary bronchi
Trachea
Visceral pleura
Submission Requirement:

Drawings must be completed by hand, traditionally or digitally.
Start the drawing from a blank piece of paper or new file. Do not use an outline, such as a coloring book page.
Artistic ability will not be graded.
The information must be accurate, and organs/structures must relate to each other appropriately.
Labels must be legible and spelled correctly.
A photo, scan, or screenshot of the hand-drawn work must be submitted as a Word document or .pdf.
Drawings that are not completed by hand, traditionally or digitally, will not be accepted and will result in 0 points for the assignment. If an outline, such as a coloring book page, is used, the submission will not be accepted and will result in 0 points for the assignment.

 

 

 

 

Studying the living primates

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Why is it important to consider our own biases when studying the living primates?

a. How might our own cultural values around animals versus humans shape how we interpret primate behaviour and the significance of anatomical differences between various primate groups?

b. What is the importance of a biocultural approach to understanding non-human primate variation?