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djyliett [7]
3 years ago
15

What is reflex action?

Biology
2 answers:
forsale [732]3 years ago
6 0
Reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.
mash [69]3 years ago
4 0
Reflex action is the response to a stimulus. The spinal cord along with the brain stem is responsible for the reflex movement.
For example : when you touch a hot object you immediately remove your hand from it
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An increase in food and a decrease in predators would most likely
Yuliya22 [10]
Say the food is squirrels and the predator is hawks, the result of there being a surplus of squirrels would cause an overpopulation of squirrels.
5 0
3 years ago
Read 2 more answers
christine had her first menstruation last month on the second month she sufferred servere menstrual pain to whom should she talk
svet-max [94.6K]
Uhh her parents I guess? not really a doctor you should talk to because that’s just growing up for women.. all of them get their periods, it’s not abnormal
7 0
3 years ago
A sample of DNA is collected from an organism. It is analyzed and determined that 20% of the DNA is made up of the base adenine.
AnnyKZ [126]

Answer:

The correct answer is -

Thymine: 20%

Guanine: 30%

Cytosine: 30%

Explanation:

According to Chargaff's rule which states that the purine residues are equal to the pyrimidines residue in DNA sample which means A+G = T+C where A is adenine, G is guanine, C is cytosine and T is thymine. It is also known that A is always equal to T and C is equal to G.

So, A+G+T+C = 100

20+20+G+C

100-40 = G+C

60= G+C

as we know G is equal to C similarly A is equal to T

Thus, G = C= 30%

    A= T= 20%

7 0
3 years ago
Scientists classify clams as consumers. Which observation about clams provides the strongest evidence for this classification?
Andre45 [30]

Answer:

They eat plants so since they don't make their own food they are a consumer

Explanation:

clams eat algae and algae is a producer it means that primary consumer

5 0
3 years ago
Which of the following has not sped up the erosion of wetlands in coastal Louisiana?
BlackZzzverrR [31]

Answer: B. the increase in acidity of the rainwater in the southeastern United States

Explanation:

The dredging of thousands of canals throughout the wetlands for easier navigation has sped up the erosion of Louisiana wetlands so option A is false.

The loss of barrier islands on the coast of Louisiana as a result of rising sea levels has also sped up the erosion of the wetlands as they are now more exposed to open water so option C is wrong as well.

The 2010 Deepwater Horizon disaster spilled so much oil that adversely affected the wetlands leading to their erosion so option D is wrong as well.

Option B is therefore right.

3 0
3 years ago
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