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notka56 [123]
3 years ago
7

With a suitable diagram explain reflex action and reflex arc

Biology
1 answer:
iren [92.7K]3 years ago
7 0

Answer:

Reflex action is the sudden uncontrolled reaction towards a certain stimuli eg response to hot iron

Reflex arc is the path taken by reflex action to a certain stimuli

Diagram depends to

Receptor(eg skin), receptor nerve(sensory neurone),centre reflex arc(spinal cord most of reflex action) they met relay neurone, motor neurone and ends at reflexor (eg muscle)

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Which of the following organisms has a closed circulatory system?
hram777 [196]

Answer:

The correct answer is E. Vertebrates have a closed circulatory system.

Explanation:

The main mission of the circulatory system is to deliver oxygen and nutrients to all body cells.

In the closed circulatory system, blood travels inside a network of blood vessels, without leaving them. The material transported by the blood reaches the tissues through diffusion. It is characteristic of all vertebrates, including humans.

3 0
3 years ago
A protein has been used by comparative molecular biologist to show the evolutionary path of how organisms did what things in reg
Anit [1.1K]

Answer:

Cytochrome C; it provides evidences that there is similarities in the respiratory pathways for producing ATPs by  all living organisms especially mammals.

Explanation:

Cytochrome c is located in the intermembranes of mitochondria, and it functions in the transfer of  of one electron in electron transport chain,(ETC) needed for  generation of proton motive force;  for generation of energy in the synthesis of ATPs by ATPase synthase  during chemiosmosis. Its allows oxdation-reduction by the switching of its iron ii to iron iii. during electron transports.However its iron atoms does not undergo oxidation with  oxygen. This feature makes it stable and  an ideal carrier of electrons.

Its amino acid sequences is very similar in all living organisms especially  between mammals(e.g man and chimpanzees)with little variation in few amino acid residues due to mutation.This similarity in its amino acids sequences in all  living  organism together with small molecular size makes it ideal  molecular evidence  for studying comparative molecular evidence of  evolution.

This is because it can be used  to trace  the pathways of respiration to synthesize energy, and therefore to conclude that  most  organisms share common ancestry, since a very similar protein sequence in  a structure(Cytochrome c) participated in unique ETC mechanisms  in all, needed for energy synthesis .

5 0
3 years ago
MASTERY CONNECT MITOSIS
puteri [66]
First one is the answer
8 0
3 years ago
Rich has been a therapist for over fifteen years and most of that time he has used an assessment tool that uses random pictures
Crank

Rich is looking to determine anxiety and depression in individuals, so he utilized the Rorschach Inkblot Test for assessment.

<h3>What is Rorschach Inkblot Test?</h3>

Rorschach Inkblot Test may be defined as a type of test that utilizes some sort of images in inkblots in which some of them are black or gray and demonstrate the pattern of thought disorders like anxiety, depression, etc. in the case of schizophrenia.

This test is also utilized to estimate the personality of an individual, emotional disorders, and level of intelligence.

Therefore, it is well described above.

To learn more about Rorschach Inkblot Test, refer to the link:

brainly.com/question/4614242

#SPJ2

5 0
2 years ago
Read 2 more answers
What organs develop in the embryo during the 1st month of pregnancy?
balu736 [363]

Answer:

thus buds that eventually grow into arms and legs are formed in 1st month of pregnancy

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