Crossed extensor reflex is a

Answers

Answer 1

Answer:

The crossed extensor reflex is a type of motor response that occurs to tactile stimulation of a lower limb. This, like other reflexes, is an indication of the proper integration and development of the central nervous system.

Explanation:

Stimulation on one side of the body can produce, in addition to the ipsilateral response. The crossed extensor reflex is a type of motor response, reciprocal innervation is involved: the flexor muscles of the stimulated limb contract at the same time that the extensors of said limb are inhibited. Coupled with flexion of the stimulated limb, the reflex produces an opposite effect in the contralateral limb: the extensor muscles are activated and the flexors are inhibited, this cross-extension reflex increases postural support during withdrawal of the painful stimulus.


Related Questions

How does oxygen enter the urchins system?

Answers

Answer:    

Enters through the gills and tubed feet.

Explanation:

The oxygen obtained by a Purple Sea Urchin is dissolved in water.  Oxygen enters through the gills and tubed feet. When the oxygen level is low in a Purple Sea Urchin, muscles associated with Aristotle's Lantern pump fluid through the body (through the canals).

Any Questions?

Oxygen enters the sea urchin's system through the respiratory system, which is through the water vascular system, as the echinoderms have a significant type of system that helps them take the oxygen from the water.

What is the water vascular system?

The water vascular system is seen in the phylum of the echinodermata, which is essentially a network of canals and tube feet that run throughout the urchin's body, and the tube feet are helpful for the attachment to the surface and for the respiration. When the tube feet are extended, oxygen from the water diffuses across the walls of the tube feet and into the urchin's body, while carbon dioxide is released into the water.

Hence, oxygen enters the sea urchin's system through the respiratory system, which is through the water vascular system, as the echinoderms have a significant type of system that helps them take the oxygen from the water.

Learn more about the water vascular system here.

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can i find dna in a dog or tree

Answers

Answer:

A dog

Explanation:

answer: you can find in both DNA, all living organisms (including plants) use DNA as their genetic material


What does the word photosynthesis mean?
Light + energy
Energy + mass
Light + put together
Energy + sugar

Answers

Answer:

Hey mate.....

Explanation:

This is ur answer.....

--> Light + Put together

Hope it helps!

Brainliest pls......

Follow me! ;)

10.) What hormone is released due to the rising level of estrogen in the bloodstream?​

Answers

Answer:

10.) What hormone is released due to the rising level of estrogen in the bloodstream?

A) When the level of estrogen is sufficiently high, it produces a sudden release of LH, usually around day thirteen of the cycle.

-TheUnknownScientist

Answer:

LH hormone is released due to the rising level of estrogen in the bloodstream.

A patient in the hospital is undergoing testing. The patient's brain is sending electrical signals to motor neurons, but the muscles are not moving in response. What could be a likely cause for this? Explain your answer using complete sentences.

Answers

Answer:

Damage to interneurons.

Explanation:

The main cause of this situation is the damage occurs to the interneurons which is responsible for sending of instructions. The motor neurons can't receive the instruction from the central nervous system which results no movement of muscles. There must be damaged occur to interneurons because these neurons are responsible for sending instructions from central nervous system so if the information can be passed to the motor neurons so no movement occurs in the muscles.

8. In a population of beetles, there is a gene for color with two codominant alleles. The allele R leads to red beetles and the allele B leads to blue beetles. Heterozygous beetles are red and blue spotted. A heterozygous beetle mates with a red beetle. What is are the genotypic and phenotypic frequencies of their offspring? Please show all of your work. (2)

Answers

Answer:

The genotypic frequency = 1:1

The phenotypic frequency = 1:1

Explanation:

Given that:

The allele → R = Red beetles

The allele → B = Blue beetles

Since the gene color shows a codominant allele

The Red Beetle = RR

The blue beetles will be = BB

The heterozygous beetle will be = RB

The punnet square showing the crossing of RB × RR is:

                R                   B

R                RR               RB

R                RR               RB

The result shows that we have two red beetles and two heterozygous beetles.

Hence;

The genotypic frequency = 1:1

The phenotypic frequency = 1:1

Hamsters are long haired if they have the genotype LL or Ll and they are short haired if they have the genotype ll. A long haired hamster is mated with a short haired hamster. Half of the offspring are long haired and half are short haired. This allows us to conclude that the long-haired parent hamster

Answers

Answer:

Has the genotype Ll (heterozygous)

Explanation:

Here are the two punnett squares I did, hope this helps :)

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

Mesozoic, the era contained both large reptiles and small birds/mammals. It's interesting, coming from an evolutionary biology.

Hope this helped!

Answer:

C. Mesozoic Era

Explanation:

It makes sense because Dinosaurs existed during that era and became extinct after that era.

ALGAE --> COPEPODS --> ANCHOVIES --> STRIPED BASS
Which organism in this food chain is most responsible for converting solar energy to chemical energy?

A
anchovies

B
algae

C
copepods

D
striped bass

Answers

Answer:

B

Explanation:

only plants convert solar energy to chemical energy.

What happens when the phosphate bonds of ATP break?
A) Acid is neutralized.
B) Energy is stored.
C) Energy is released.
D) An organism becomes sick.

Answers

Answer:

C ender is released

Explanation:

the energy stored in the phosphate bonds hold the energy, when the bond breaks the energy stored is released

Answer: C

Explanation:

PLZ HELP ASAP will give brainiest
Which statement best explains how humans would benefit from replacing fossil fuels with geothermal energy?

Less cost-effective over time
Lower installation costs than fossil fuel plants
More energy plant locations available
Less pollution than fossil fuel plants

Answers

I would say less pollution than fossil fuel plants - but i’m not sure
its- less pollution than fossil fuel plants

Can someone please help me with this? I can’t figure it out.
Please only answer if you know it.
Thank you in advance.

Also it does not appear that clear.

Answers

Answer:

1. B, C, F

2. Outside air, nose, lungs, bloodstream, cell

3. Delivery truck, raw material, factory, battery, poison

I hope this helps! Have a great night!

QUICK!!!

What does Earth’s revolution around the sun cause?

Earth's phases

Earth's day & night

Earth's year

Moon day & year

Answers

earths year because when earth travels around the sun it is equal to earths full year

The higher the hydrogen ion concentration, the _______ the pH.
please help answer i need to turn this in asap.

Answers

Answer:

here is your answer : )

Explanation:

The answer is lower the pH

hope you like the answer : )

How are sexual reproduction and asexual reproduction different?
Group of answer choices

A. Asexual reproduction only occurs in multicellular organisms, but sexual reproduction only occurs in unicellular organisms

B. Asexual reproduction produces offspring identical to the parents, but sexual reproduction produces offspring with traits from both parents.

C. Sexual reproduction produces offspring identical to the parents, but asexual reproduction produces offspring with traits from both parents.

D. Sexual reproduction only occurs in multicellular organisms, but asexual reproduction only occurs in unicellular organisms.

Answers

Answer:

B

Explanation:

In asexual reproduction, the offspring has identical genes/traits to the one of its parent.

In sexual reproduction, there's a combination of the genes/traits from both parents.

among cattle having horns is a recessive trait cattle without horns which are called polled cattle are common suppose a horned male mates with a polled female their offspring are polled on maturity two cattle on the f1 generation mated their offspring are a mix of polled and horned cattle

Answers

Answer:

Correct

Explanation:

It’s always more likely that the dominant gene will show than the recessive gene.

Mrs. Essy is type "A" and Mr. Essy is type "O." They have three children named Matthew, Mark, and Luke. Mark is type "O," Matthew is type "A," and Luke is type "AB." Based on this information:
A. Mr. Essy musy have the genotype??
B. Mrs.Essy must have the genotype??

Answers

Answer:

A) Mr Essy genotype is OB

B) Mrs Essy genotype is OO

Explanation:

A) Mr Essy genotype is OB

B) Mrs Essy genotype is OO

OO * OB

OO, OO, OB, OB

Which is a product of cellular respiration?

1, Methane

2, Water

3,Oxygen gas

4, Mitochondria ​

Answers

Water is a product of cellular respiration
answer:
water

explanations

What produces gene flow?
ws
O mating between populations
O mutation
O geographical isolation
O speciation

Answers

Answer:

O mutation

Explanation:

please mark this answer as brainliest

What two nations were at the center of the Space Race in the 1950's Australia and Russia .China and United States .United States and Russia .
Russia and China​

Answers

Answer:The Space Race was a 20th-century competition between two Cold War adversaries, the Soviet Union (USSR) and the United States (US), to achieve superior spaceflight capability.

Explanation:

i looked it up

The two nations that were at the center of the Space Race in the 1950s should be considered  Russia and China.

What is Space Race?

The Space Race was the competition held in 20the century that lies between the two Cold War adversaries i.e. soviet union and the united stated for accomplishing the superior spaceflight capability.

Also, it has its origin in the ballistic missile that based on the nuclear arms race.

Learn more about the nation here: https://brainly.com/question/365702?referrer=searchResults

HELPP

Which of the following is a correct statement about the water molecule?


The hydrogen end is more negative than the oxygen end because hydrogen pulls the shared electrons towards its end of the molecule.


The oxygen end is more negative than the hydrogen end because oxygen pulls the shared electrons towards its end of the molecule.


There is no overall chrage on either end of the water molecule.

Answers

Answer:

it should be B

Explanation:

I hope this helps

Which point on the graph represents carrying capacity when full?
A.
B.
C.

Answers

It’s should be: C, from looking at the graph

All members of the Eukarya domain have which of the following characteristics?
Have a nucleus
Are multicellular
Are heterotrophic
Reproduce sexually

Answers

Answer:

A. Have a nucleus.

Explanation:

I hope this helps.

please answer !




will give brainliest

Answers

Answer:

c

Explanation:

Clouds can block light and heat from the Sun, making Earth's temperature cooler

HELP ASAP WILL GIVE BRANLIST!!! How many moles of water are produced when 6.0 moles of hydrogen gas react with 2.5 moles of oxygen gas?

Balanced equation: 2H2 + O2 → 2H2O (5 points)


2.5 moles of water

3.0 moles of water

5.0 moles of water

6.0 moles of water

Answers

Answer:5.0 moles of water

Explanation:

What is the relationship between aquifers and porosity?

Answers

Answer:

The pore space of an aquifer is the spaces or voids between the solid material. The porosity of the aquifer is the volume of void space to the total volume, typically expressed as a percentage.

The sea cools down faster than the land.
A. True
B. False

Answers

Answer:

false the land cools faster

????????????????????????????????????????? What is the answer to number 2 and 3 I’m really confused

Answers

Answer:

2. High

3. Low

Explanation:

4. Sinking air compresses and heats. As air sinks, air pressure at the surface is raised.

3. As air rises, air pressure at the surface is lowered

The movement of the Earth around its own axis is called _____.

A. extension

B. revolution

C. rotation


Choose the correct answer.''

Answers

Answer:

rotation

Explanation:

Earth spins around its axis, just as a top spins around its spindle. This spinning movement is called Earth's rotation. At the same time that the Earth spins on its axis, it also orbits, or revolves around the Sun. This movement is called revolution.

the action of rotating about an axis or centre.
answer: rotation

cion
Fully explain how speciation occurred on the
Galapagos Islands using 3-4 complete
sentences.
PLEASE HELPP!!

Answers

im not very sure but since they have different small islands, the animals travel to different and change according to the weather living conditions and food there
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What caused lamplighters' jobs to disappear? Determine the period of the function y = Negative 2 sine (StartFraction pi Over 2 EndFraction) x.a.2c.-2b.3.14d.4 Sammy's mother asked him to buy some aspirin at the supermarket. There were two differentsizes of aspirin bottles, and Sammy was not sure which one to buy. The bottle with 150 tabletscost $7.50. The bottle with 50 tablets cost $3.00. Sammy used proportions to make his decision.1. The bottle with 150 tablets2. The bottle with 50 tablets 3. Both bottles work out the same At the craft store, Janice bought a bag of green and yellow marbles. She received 14 green marbles and 11 yellow marbles. What percentage of the marbles were green? in a test, a hybrid car drove 4952 yards on 1 cup of gasoline. What is this rate in miles per gallon ? The area of a rectangle is x^2-6x-16. If the width is x+2, what is the length? PLEASE HELP!!!!!!!!!!!! Out of 1500 students at a school 85% made grade check. How many students passed grade check? I need halp PLSSSSS Im confused 9.x, y and z are three different numbers.x + y + z = 100The mean of x, and y is 40.The mean of y and z is 35. Someone please do this, you have to match them. So for example 1 is the letter H. Explain What's make up macromolecules? help me plssss6 - BLANK = 5 AND 1/3 14. Explain why you think Mr. Fisher is so determined to help Erik succeed in football. On test 7, Josue's score dropped back from 98 to 85. What is the percent decrease? (TCO 3) Below is the frequency response of the IIR realization of an analog band-pass filter. What type of filter is this? 620 is invested in an account earning 5.5%interest APR, compounded quarterly. Write a function showing the value of the account after t years HELP ASAP! BRAINLIST IF CORRECTWhat force moved the land masses over great distances?A) GravityB) Heat and pressureC) Cooling and meltingD) Convection currents Which of the following phrases are inequalities? Compltez les phrases avec la bonne forme du verbe au pass compos. Faites votre choix de la liste ci-dessous.Arriver, descendre, faire, lire, monter, partir, sortir, voirAvant de partir pour rendre visite son copain Lyon, Julie, le mnage. Puis, elle pour la gare. la gare, Julie le panneau d'affichage et elle a trouv le bon quai. Le train et Julie dans le train. Une heure et demie plus tard, elle du train Lyon. Elle de la gare et elle son copain.