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Anika [276]
3 years ago
11

Which topic do biologists ask questions about and study using scientific process

Biology
2 answers:
quester [9]3 years ago
8 0

Answer B.) organism and health

Explanation: for apex is organism and health

denis23 [38]3 years ago
3 0
<span>b.) organism and health</span>
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Chicken liver is placed into lemon juice for 10 minutes. What type of evidence of a chemical reaction would be expected to occur
sladkih [1.3K]

Answer:

When hydrogen peroxide is added to a chicken liver sample exposed to lemon juice the chemical reaction will be slower and appear some bubbles within the first minute (option B).

Explanation:

The liver contains an enzyme called catalase, whose function is the degradation of hydrogen peroxide (H₂O₂), an intense reaction that produces gas and heat. <u>The activity of this enzyme must occur at an appropriate pH, so changes in pH can affect the activity of catalase</u>.

  • Under normal conditions, when a liver sample is exposed to H₂O₂, bubbles and foam appear in the sample as a result of the catalase reaction.
  • When the chicken liver sample is subjected to the acidic lemon juice, the reaction will occur, but more slowly.

This is because the activity of the catalase enzyme, present in the liver, continues to occur —although it decreases— and will form few bubbles over a longer period of time.

The other options are not correct because:

<em>     A. At a lower pH, the reaction will not form many bubbles. </em>

<em>     C. Even if the reaction is minor, and produces very few enzymes, it will always occur. </em>

<em>     D. Although the catalase/H2O2 reaction produces heat, it is impossible for the liver to catch fire and cause evacuation from the school, even less so with a reaction whose speed has been slowed down.</em>

3 0
2 years ago
an ocean wave has a wavelength of 8 meters and wave period of 4 seconds. what is the wave speed? A. 2 m/s B. 4 m/s C. 12m/s D. 3
MrRissso [65]
The answer is A) 2 m/s because to calculate the speed, you do distance divided by time. This means that 8/4 = 2. 
7 0
3 years ago
An organism that has two different alleles for the same genetic trait.
faust18 [17]

Answer:

heterozygous

Explanation:

I'm taking Biology (11th grade)

This is what I found in my textbook

"An organism in which the two copies of the gene are identical — that is, have the same allele — is called homozygous for that gene"

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Where in the lymph node is a dendritic cell most likely associated with a b or t lymphocyte? where in the lymph node is a dendri
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<span>Cortex</span>

<span>Lymph node can be described as kidney shaped organ of the lymphatic system and of adaptive immune system that can be found throughout the body. The major site of lymph nodes is B and T lymphocytes and other white blood cells.  However, lymph node associates with follicular dendritic cell in the B cell follicle and fibroblastic reticular cell in the T cells cortex.</span>

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3 years ago
A student drew the following flowchart to show the movement of nutrients.
Agata [3.3K]

Answer:

D. nitrogen

Explanation:

7 0
3 years ago
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