what is reflex action?

Answers

Answer 1
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
Answer 2
reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.

Related Questions

Short hair (S) is dominant to long hair (s) in cats. What would be the genotype(s) of a cat with long hair

A SS or Ss
B ss
C Ss
D SS

Answers

Answer:

A,C,D

Explanation:

Pretty much just A

1. Which affects the shape of a molecule?
A the number of subatomic particles in a nucleus
B the number of electrons in the molecule
C the types of subatomic particles in the molecule
D the composition of atoms in the molecule

Answers

Answer:

D

Explanation:

Being compacted shapes the molecule

(D) the composition of atoms in the molecule

Drinking non-potable water does not carry significant health risks. Please select the best answer from the choices provided T F

Answers

Answer:

false

Explanation:

Drinking non-potable water does not carry significant health risks. The given statement is false.

What is drinking non-potable water?

Non-potable water is the water which is not treated to drinking water standards and it is not meant for the human consumption. Non-potable water, such as the raw or untreated water from the reservoirs. Non-potable water is used for the irrigation and other purposes, in addition to recycled water which is used for highly-treated wastewater.

Microbiologically, the contaminated drinking water can transmit diseases such as the diarrhea, cholera, dysentery, typhoid and polio and it is estimated to cause over 485000 diarrheal deaths each year.

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what is a body plan (bio)

Answers

a body plan is a group of structural and developmental characteristics that can be used to identify a group of animals, such as a phylum.all of the members of a particular group share the same body plan at some point during their development—in the embryonic, larval, or adult stage.

mark as brainliest pls

Answer:

body plan. a set of morphological and developmental traits. Animal Overview. -mulitcellular eukaryotes. -heterotrophs that ingest their food.

Explanation:

A body plan, Bauplan, or ground plan is a set of morphological features common to many members of a phylum of animals. The vertebrate body plan is one of many: invertebrates consist of many phyla.

HOPE IT HELPS : D

i am generally found both inside and outside of the nucleus {in eukaryotic cells} is it DNA O RNA ?

Answers

Answer: RNA

Explanation:

Nearly all the RNA found in a typical eukaryotic cell is rRNA. Transfer-messenger RNA (tmRNA) is found in many bacteria and plastids.

What is generally found both inside and outside of the nucleus of a eukaryotic cell is ; RNA

RNA is formed in eukaryotic cells when DNA contained in the nucleus of the cell is transcribed/synthesized. The transcribed RNA is then moved out of the nucleus into the cytoplasm.

The RNA contained in the cytoplasm is later transcribed into protein in the cytoplasm of the cells . therefore RNA is contained both inside and outside the nucleus of a eukaryotic cell.

Hence we can conclude that what is generally found inside and outside the nucleus of a eukaryotic cell is RNA

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A plant tissue made of tubular cells stacked to form structures called tubes.

A. xylem
B. cambium
C. phloem

Answers

Answer:

C

Explanation:

Xylem are stronger and thicker tubes than the Phloem, and the Xylem are meant to bring nutrients and water from the roots too the leaves!

Phloem are much smaller, and much more brittle than the Xylem, and they also have a different job. These are meant to take the glucose made from photosynthesis and move it to the rest of the plant. These are made up of tubular cells, creating a vascular system.


Definition: In ecosystems, this is the breakdown of organic matter to its basic chemical components.

Answers

Answer:

Decomposition :)

Explanation:

Answer:

It is decomposition

Explanation:

The human population has experienced unchecked growth for the past 200 years. What does unchecked mean?
A.slow
B.At a steady rate
C.unrestrained
D.dangerous
Quick it is timed

Answers

Answer:

D

Explanation:

im pretty sure

Answer:

the answer is B

Explanation:

I took the test

what is mitochondria a place of in chloroplast once being free orginisms

Answers

Answer:

Power house of the cell

Answer:

powerhouse of the cell

Explanation:

What is a DNA probe?

Answers

Answer:

In molecular biology, a hybridization probe is a fragment of DNA or RNA of variable length which can be radioactively or fluorescently labeled. It can then be used in DNA or RNA samples to detect the presence of nucleotide substances that are complementary to the sequence in the probe.DNA probes are stretches of single-stranded DNA used to detect the presence of complementary nucleic acid sequences (target sequences) by hybridization. DNA probes are usually labelled, for example with radioisotopes, epitopes, biotin or fluorophores to enable their detection.

spanish

En biología molecular, una sonda de hibridación es un fragmento de ADN o ARN de longitud variable que puede marcarse de forma radiactiva o fluorescente. Luego puede usarse en muestras de ADN o ARN para detectar la presencia de sustancias nucleotídicas que son complementarias a la secuencia en la sonda. Las sondas de ADN son tramos de ADN monocatenario utilizados para detectar la presencia de secuencias complementarias de ácido nucleico (secuencias diana) por hibridación Las sondas de ADN generalmente están marcadas, por ejemplo, con radioisótopos, epítopos, biotina o fluoróforos para permitir su detección.

Explanation:

Answer:

Explanation:

DNA probes are stretches of single-stranded DNA used to detect the presence of complementary nucleic acid sequences (target sequences) by hybridization. DNA probes are usually labelled, for example with radioisotopes, epitopes, biotin or fluorophores to enable their detection.

Search around your house. Name two examples of
objects that show mechanical energy.

Answers

Answers:

Riding a bicycle and sharping a pencil

Explanation:

which characteristics of Galapagos finches helped the grants show the results of natural selection
A. color of their feathers
B. the length and shape of their wing
C. The size and shape of their beak
D. the curve of their claws​

Answers

C is the answer. The people (wife and husband) studied and realized that their beak was unique

What do you do when you have abdominal pains?

Answers

Answer:

Use ginger, drink tea, chew peppermint gum, or simply use a heating pad.

What are some ways that the nitrogen cycle overlaps with or influences the oxygen and carbon cycles?


Are any of these interactions between the cycles positive?

Answers

Answer:

Nitrification happens when soil organisms change over ammonium into nitrate. Much of the cover between the carbon cycle and the nitrogen cycle happens within the soil, in forms conducted by soil organisms. Organisms break down supplements, construct modern compounds for their possess development, and die.

second question not sure sorry

match each part of a cell to its structural features.

1.lager size in plant cells----->
2.salt and water base----->
3.grainy appearance----->
4.permeable and flexible---->

a.cytoplasm
b.cell membrane
c.rough endoplasmic reticulum
d.vacuole

Answers

Answer:

1)vacuole covers most part in a plant cell

2)cytoplasm is a salty and water base

3)rough endoplasmic reticulum has a grainy appearance

4)The cell membrane is flexible and semi-permeable

Answer:

)vacuole covers most part in a plant cell

2)cytoplasm is a salty and water base

3)rough endoplasmic reticulum has a grainy appearance

4)The cell membrane is flexible and semi-permeable

Explanation:

Can seaweed help curb global warming?

Answers

Answer:

no.......................................

Answer:

yessss

Explanation:

hahhahhaha

zoom in to see

What most directly causes hypertension?

Answers

Answer:

hypertension is caused by stress and salt intake

The most common causes of hypertension include smoking, obesity or being overweight, diabetes, having a sedentary lifestyle, lack of physical activity, high salt or alcohol intake levels, insufficient consumption of calcium, potassium or magnesium, a deficiency in vitamin D, stress, aging, chronic kidney disease

Sheila weighs 60 kg and is riding a bike. Her momentum on the bike is 340 kg • m/s. The bike hits a rock, which stops it completely and throws Sheila forward onto the pavement. If there is no net force on the system, what is Sheila’s velocity immediately after she is thrown from the bike?

Answers

Answer:

5.7 m/s     

Explanation:

The computation of Sheila 's velocity right after she gets thrown out of the bike is shown below:

1) The Physical principle: conservation of momentum.

If there is no net external force operating on a system, so the system's total momentum is conserved

The momentum, p, is a vector magnitude that is determined as the product of the mass by the velocity:

P = mv.

2) Taking into account therefore that there is no net force on the device, Sheila and the momentum of the bike are the identical pre and post collision.

Based on this, the calculation is as follows

Momentum before the collision:

       [tex]P_1 = (mass\ of\ Sheila + mass\ of\ the\ bike) \times velocity[/tex]

       [tex]P_1 = (60kg + m) \times v_1[/tex]

= 340 kg m/s

Now Momentum after the collision:

      [tex]P_2 = mass\ of\ sheila \times velocity\ of\ Sheila + mass\ of\ the\ bike \times velocity\ of\ the\ bike[/tex]

[tex]P_2 = 60kg \times v_2 + m \times 0 = 60kg \times v_2[/tex]

[tex]P_1 = P_2[/tex]

[tex]= (60kg + m) \times v_1[/tex]

[tex]= 60kg \times v_2[/tex]

[tex]= 340 kg .\ m/s[/tex]

[tex]= 60kg \times v_2[/tex]

[tex]v_2 = \frac{340\ kg .\ m/s }{60\ kg}[/tex]

= 5.7 m/s     

The velocity of Sheila immediately after she is thrown from the bike is 5.67 m/s.

The given parameters;

mass of Sheila, m = 60 kgmomentum of Sheila, P = 340 kg.m/s

The velocity of Sheila immediately after she is thrown from the bike is calculated as follows;

P = mv

where;

v is the velocity Sheila

[tex]v = \frac{P}{m} \\\\v = \frac{340}{60} \\\\v = 5.67 \ m/s[/tex]

Thus, the velocity of Sheila immediately after she is thrown from the bike is 5.67 m/s.

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When a rock falls from outer space all the way to the ground, it is called a ______.

Answers

Answer:Meteoriet

Explanation:When its in space it is called a meteor but when it enters out atmosphere and hits the ground it turns into a meteorite

A plant growing in a pot is more likely to be affected by a shortage (lack) of minerals than a plant growing in a garden.
Give the reason for this.

Answers

Because the plant in the garden is receiving minerals form the spheres of earth and the plant in the pot is not

Which products are made from nonrenewable resources? Check all that apply.
a. a soft-drink can
b. lipstick
c. a cotton T-shirt
d. motor oil
e. a wooden table

Answers

Answer:

The answer is A, B, and D

Explanation:

Products that are made from non-renewable resources are a can of soda, lipstick and motor oil.

What are renewable and non-renewable resources?

Renewable natural resources are those that are renewed in a short period of time compared to the human lifetime. Some examples of renewable resources are:

watersoilorganic matterbiofuelsand wind.

Non-renewables are those that are not renewed in a short period of time compared to the human lifespan.

Whit this information, we can conclude that products that are made from non-renewable resources are a can of soda, lipstick and motor oil.

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1. having to many fish in a pond can limit the amount of food and space available .
2. The cheetah population depends on the gazelle population for food .

Answers

Answer: true

Explanation:

the more fish there r the less food to go around

which statement describes s waves

Answers

Answer:

They move side to side

They arrive after P waves

They travel through solids

Explanation:

Answer:

They move side to side

Explanation:

S waves (secondary)

-arrives after P waves

- vibrate from side to side and up and down

-shake structures violently

-travel only through solids

An act of fertilization in which genetic information is transferred between cells is called _____.

Answers

Answer: Conjugation

Explanation:An act of fertilization in which genetic information is transferred between cells is called conjugation

Identify whether the changes to biodiversity are natural or due to human intervention.
A mass extinction occurs after
several volcanic eruptions.
A species of wasp is outcompeted
by several other species and
goes extinct.
A population of grubs decreases
as the population of moles, a
predator of grubs, increases.
A species of wildflower goes
extinct after land is cleared
for agriculture.
Three populations of migratory fish
decline after the construction of
a hydroelectric dam.
The number of offspring produced
by a population of frogs decreases
after pesticides enter their pond.
Natural
Human Intervention

Answers

The first three answers are natural changes, while the last three are because of human intervention.

Which two types of clouds extend vertically through the troposphere?

Answers

cumulus
, and

cumulonimbus clouds

That would be my best guess, hope you get everything you needed :)

why is nectar important for insects?

Answers

Answer:

Nectar is important for insects because.. Nectar is an ecologically important item, the sugar source for honey. It is also useful in agriculture and horticulture because the adult stages of some predatory insects feed on nectar. For example, the social wasp species Apoica flavissima relies on nectar as a primary food source. In turn, these wasps then hunt agricultural pest insects as food for their young.

If a lunar eclipse occurs tonight, the next lunar eclipse would occur?

Answers

Answer:

in 10 years

Explanation: im pretty sure

Answer:

every 2.5 years

Explanation:

the cycle of changes which occurs in female reproductive system for a month is called​

Answers

ovulation

Explanation: ovulation is the release of eggs(ova) from the ovaries is the  cycle of change which occurs in female reproductive system for a month.

An organism may be multicellular or unicellular.
True
False

Answers

true organisms can be both
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