Someone please answer i’ll give you brainliest.

Answer:

A

Explanation: I got it correct on a quiz I did that had this question

Move your hand away. Therefore, option (C) is correct.

A reflex arc is a neural pathway that mediates a reflex action. It is a rapid and automatic response to a specific stimulus that does not require conscious thought or decision-making from the brain. When a sensory receptor in the body, such as the skin or muscles, is stimulated, a nerve impulse is transmitted to the spinal cord, where it is processed by an interneuron.

The interneuron then sends a signal through a motor neuron to the effector, such as a muscle, causing a rapid and involuntary response, such as pulling your hand away from a hot stove. This entire process occurs without conscious control from the brain, allowing for quick and protective responses to potentially harmful stimuli.

Learn more about reflex arc, here:

https://brainly.com/question/29727145

#SPJ3

Answer:

photosynthesis did not occur.. because if photosynthesis had occured oxygen would be produced..but the tubes turned green proving there was more carbondioxide than oxygen Which proves photosynthesis didn't take place.

hope my ans helps

be sure to follow me

stay safe

have a good day

As the test tube turned green, it means that photosynthesis did not occur in the test tubes.

Bromothymol blue (BMB) is a dye that turns yellow when exposed to acid. When carbon dioxide is added to a solution, it produces carbonic acid, which lowers the pH.

When the pH is greater than 7.6, BMB is blue, green when the pH is between 6-7.6, and yellow when the pH is less than 6.

Carbon dioxide dissipates in water to produce a weak acid. As a result, an acid-base indicator like bromothymol blue (BTB) can be used to detect the presence of CO2.

The person basically use bromothymol blue as an indicator to determine how much CO2 remains in test tubes containing light-exposed plants.

Thus, as there were some drawbacks in the experiment, the test tube B and D got green color, which means the level of carbon dioxide were more. This implies, photosynthesis did not occur.

For more details regarding photosynthesis, visit:

https://brainly.com/question/1388366

#SPJ2

Answer:

yes thats right, its the sun

Answer:

When a meteoroid, comet, or asteroid enters Earth's atmosphere, aerodynamic heating of that object produces a streak of light, both from the glowing object and the trail of glowing particles that it leaves in its wake.

Hope that helps, and sorry if it's wrong!

Explanation:

Answer:

The hypothesis that eukaryotic cells evolved from a symbiotic association of prokaryotes—endosymbiosis—is particularly well supported by studies of mitochondria and chloroplasts, which are thought to have evolved from bacteria living in large cells.

Answer:

A

Explanation:

The primary would decrease due to no trees

Answer: Yet when a certain amount of UV rays penetrates the skin, it helps the human body use vitamin D to absorb the calcium necessary for strong bones. This delicate balancing act explains why the peoples that migrated to colder geographic zones with less sunlight developed lighter skin color.

Answer:

When a certain Strongbow amount of UV rays penetrate the skin, it helps the human body use vitamin D to absorb the calcium is necessary for strong bones. This Balancing Act explains why the people that migrated to colder Geographic zones with less sunlight develop lighter skin color.

Hope this helped!

Answer:

75%

b

r

a

i

n

l

i

e

s

t

plzzzz ;)

Explanation:

Question:

Use the following dichotomous key to identify an irregular blue flower with five petals and a fruit that is a ripened flower ovary or follicle.

Dichotomous Key of Ranunculaceae

#1.

a. Fruit is a group of alkenes.............................. go to step 2

b. Fruit is a group of follicles..............................go to step 4

#2.

a. Petals are not present.....................................go to step 3

b. Petals are present............................................Ranunculus

#3.

a. The flower has 4 sepals.................................. Clematis

b. The flower has 5 sepals................................... Anemone

#4.

a. The flowers are regular..................................... Aquilegia

b. The flowers are irregular................................... Delphinium

The flower is a: A. Anemone B. Clematis C. Delphinium D. Ranunculus

Answer:

The species belongs to Delphinium genera.

Explanation:

A dichotomous key is relatively simple to interpret. All you need to do is to:

- carefully observe your organism,

- know some technical terms or have a biological dictionary, and

- follow the descriptions.

The dichotomous key is going to lead you to the answer.

In the example, we have a plant species with irregular blue flowers and five petals. The fruits are a ripened flower ovary or follicles.

So, let us begin, step by step. For each number, we are going to have two options (a and b). By knowing our organism, we need to decide which one is correct and follow indications.

#1.

a. Fruit is a group of alkenes.............................. go to step 2.

b. Fruit is a group of follicles..............................go to step 4.

We know that our fruit is a follicle. Option a is not correct (it is not a group of alkenes). Option b is the correct one. Knowing this, we must go to step four. ***Note: In the hypothetical case that the fruits were a group of alkenes, and option a was correct, we should go to step two, as indicated***.

#4.

a. The flowers are regular..................................... Aquilegia

b. The flowers are irregular................................... Delphinium  

We know that our flower is an irregular one. So the correct option is b. This option leads us to Delphinium genera. Our species belongs to this taxonomic group. ***Note: In the hypothetical case that the fruit was actually a regular flower, and option a was correct, our species would belong to Aquilegia genera***

Answer:

Explanation:

The Bloodhound dog breed was bred in the middle ages for an excellent sense of smell to be used for hunting.

Answer:

d

Explanation:

The ebony forest went extinct. As the human population grew, it was not possible to maintain the forest, even when it was managed. That is option C

Forest is one of the renewable resources that needs to be conserved.

This is because the importance of forest to humans, wildlife and the soil can not be over emphasized.

Their benefits include:

When there is increase in human population, the chances of a conserved forest like ebonyi forest to survive is diminished.

This is so because, with the increased population there will be:

Therefore, the government may be forced to clear the forest to attend to the needs of the growing population. This can cause the ebonyi forest to go extinct.

Learn more here:

https://brainly.com/question/12275190

Answer:

cells come from pre-existing cells

Answer:

c.

Explanation:

That be your answer mate.

Answer:

the correct answer is c

Explanation:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.

The statement 'predators evolve heavy jaws to crunch the bones of herbivores, and herbivores evolve thick fur for warmth' is NOT an example of coevolution.

In conclusion, the statement 'predators evolve heavy jaws to crunch the bones of herbivores, and herbivores evolve thick fur for warmth' is NOT an example of coevolution.

Learn more in:

https://brainly.com/question/1489642

Answer:

14 Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.

15 The halogen group of elements is the most reactive of the nonmetals. It is also the most reactive group of all chemical elements. Fluorine is the most reactive element in this group. Halogens are highly reactive because they are all electronegative.

16 Group 8A — The Noble or Inert Gases. Group 8A (or VIIIA) of the periodic table are the noble gases or inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), and radon (Rn). The name comes from the fact that these elements are virtually unreactive towards other elements or compounds.

17 Group 1: Alkali Metals

Group 1 elements are called alkali metals because of their ability to displace H2(g) from water and create a basic solution. Alkali metals are also known to react violently and explosively with water.

Answer:

2

Explanation:

Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants.

Answer:

35% - adenine

35% - thymine

Then you have cytosine which is paired with guanine and they will both have a percent of 15.

15% - guanine

15% - cytosine

Explanation:

Answer: 90% of people marry there 7th grade love. since u have read this, u will be told good news tonight. if u don't pass this on eight comments your worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of your life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love you.

Explanation: btw its B the least massive star

Answer:

Photosynthesis is when energy, carbon dioxide and water react to produce glucose and oxygen. It is an endothermic reaction (takes in more energy than it gives off).

glucose  +  oxygen  + (energy)  →  carbon dioxide  +  water

C 6 H 12 O 6  +  6 O 2  →  6 CO 2  +  6 H 2 O

Respiration is the process of producing energy from glucose. It uses glucose and oxygen to give water, carbon dioxide and energy (thus making it exothermic).

carbon dioxide   +  water  +  energy  →  glucose  +  oxygen  

6 CO 2  +  6 H 2 O  →  C 6 H 12 O 6  +  6 O 2

As you can see from the equations, they are essentially the reverse of each other.

Another difference is how they are used. Respiration occurs in the mitochondria of all living cells, whereas only plants photosynthesize.

In plants, they make their own glucose using the sun's energy, then respire to allow them to use the glucose for the energy they can use. The glucose can also be stored and used in many other ways other than in respiration.

Answer:

The question A. is "period"

The question Below known as B. is "Group"

Explanation:

"You must not fear, for the answers are actually quite near."

(like in the paper)

Answer:

‘Henry,’ The Hexapus

‘Octogoat,’ The Eight-Legged Goat

Faith,’ The Two-Legged Dog

We,’ The Two-Headed Albino Rat Snake

Hope this helps!!

Please mark as brainiest!!

Answer:

a. domain

Explanation:

I am assuming that you are looking for the largest system, in that case it is domain.

From this list, it goes

Domain>kingdom>phylum>taxonomy

hope this helps :3

Answer:

Carbon in the air

Explanation:

Answer:

D

Explanation:

The function of the Turbine in a power plant using fossil fuels is to spin the generator using steam.

Turbines are mechanical devices that are used to extract energy from fuel or air. These are the fans that run by the water or air and generate electricity. They are large fans and that move very fast.

Thus, the correct option is D.

Learn more about turbines

https://brainly.com/question/928271

#SPJ2

Answer:

C: Converting radiant energy into chemical energy.

Explanation:

Only plants (producers) in a typical ecostystem can convert radiant energy into chemical energy.

Answer:

Converting Radiant energy into Chemical energy.

Explanation:

There are two main purposes for plants. 1. Providing oxygen 2. serving as producers. As we know, plants take in the sunlight from the sun and make glucose with it. This glucose in its form is chemical energy that benefits both the plants, or the consumers that eat them, or some parts of the plant. It does not talk about oxygen or atmosphere except for nitrogen, which they actually get from the ground. Therefore, Converting Radiant energy into Chemical energy would be the right answer.

Answer:

Explanation:

b I’m pretty sure

Answer:

The answer is D.

Explanation:

The Genus is capitalized whereas the species is not.