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Xelga [282]
3 years ago
13

In one of your research experiments, you varied the amount of light exposure of rats to determine whether the rats would press a

lever more with more light exposure. The dependent variable in this experiment was the __________.
Biology
1 answer:
Anika [276]3 years ago
5 0

Answer:

intensity with which the rats pressed the lever

Explanation:

In research, there are two main variables which are <u>dependent</u> or <u>independent</u>.

Independent variables are controlled or manipulated by the experimenter and the independent variable in this experiment is the amount of light exposure.

The response or outcome, which is then measured is the dependent variable. In this experiment, the dependent variable is the intensity with which the rats pressed the lever with varying exposure to light.

In summary, the independent variable has a causal effect on the dependent variable so in this experiment the amount of light exposure has a casual effect on whether the rats would press a lever more.

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In the diagram of the human digestive system, what organ is labelled 5?
il63 [147K]

Answer:

The large intestine

Explanation:

The large intestine is a long, tube-like organ connected to both the small intestine and the anus. In an anatomy drawing, it looks almost as if it is wrapped around the small intestine.

As we can see in the drawing, the organ labelled with 5 is wrapped around another organ which is smaller and looks longer. This smaller organ is the <em>small intestine</em>. Since we know that the large intestine <em>wraps around</em> the small intestine, we can infer that the organ is the large intestine.

Hopefully that was helpful! :)

8 0
2 years ago
Why is the sequence of amino acids important to protein function?
Dmitrij [34]
B or d.... hope this helps:)
3 0
3 years ago
Represents the presence of the<br> rhesus protein on blood.
Roman55 [17]

AlohaS4

Answer & Explanation:

( Rh Factor ) represents the presence of the Rhesus protein in the blood.

( Rh+ ) blood contains the rhesus protein.

( Rh- ) blood does not contain the rhesus protein.

( Type O ) blood is the universal donor.

( Type AB ) blood is the universal recipient.

( Rh+ ) blood can receive Rh+ or Rh- blood.

( Rh- ) blood can receive Rh- blood.

Hope you found this helpful! <3

<em>~Aloha</em>

<em />

<em>Btw: This contains the full Edge question. So, if you're using Edge, just click "done" for each part of the question and answer it. :)</em>

6 0
3 years ago
If you were making a product of artificial "Grow-Lites" for plants, what color light should
UNO [17]

Answer:

<u>-blue and red light</u>

Explanation:

Plants produce sugars or carbohydrates during the process of photosynthesis. They absorb light energy from the electromagnetic spectrum with pigments within the thylakoid membrane, like chlorophyll a, chlorophyll b.

Chlorophylls are made of ringed molecules chlorine, a hydrogenated form of porphyrin with a magnesium ion bonded to four atoms of nitrogen. Chlorophyll a shows the most absorption of red light  (642 nm) and blue light (372 nm); while chlorophyll b shows the most absorption at 626 nm and 392 nm.  

Different types of chlorophyll sidechains change the molecules' absorption ranges; A's methyl group is bound at carbon 7,  B's aldehyde (CHO) ring is bound at carbon 7.  Both absorb light from orange-red and violet-blue wavelengths. As such, the best light wavelengths for photosynthesis are within the blue and red wavelengths (425–450 nm) and (600–700 nm).

8 0
3 years ago
Which area of the brain is linked to emotions such as fear.
faust18 [17]

limbic system

Explanation:

center of emotional processing is the amygdala

6 0
2 years ago
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