Please help please help please help please help please help please help please help please help please help please help please help please help please help please help

Answer:

Betelgeuse

b.Polaris

c. Aldebran

d.Sirius

e. The Sun

Explanation:

arent sure

In comparison with the surface temperature and luminosity of massive stars in the main sequence, the smaller stars in the main sequence are: cooler and less luminous.

A star is a giant astronomical or celestial object that contains a luminous sphere of plasma and bounded together by its own gravitational force.

Generally, a star typically comprises two (2) main hot gases and these are:  

I. Hydrogen (H).

II. Helium (He).

Main sequence refer to stars that can fuse hydrogen atoms in its core, to form helium atoms.

Some examples of a main sequence include the following;  

The luminosity of a star can be defined as the total amount of light radiated by the star per second. Also, it is measured in Watts (W).

In conclusion, smaller stars in the main sequence are cooler and less luminous than massive stars in the main sequence.

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Answer:

if recipe calls 5g of sugar it's a lot that the sugar u have so, the answer is no

Answer:

no

Explanation:

because 0.007<5g

by converting the units

Answer:

determination is the process in which embryonic stem cells commit to one specialized function. differentiation is the process in which cells develop their specialized shapes and functions. determination has to happen for differentiation to occur.

Answer:

the answer is as follow Determination implies a stable change . Differentiation follows determination.  determination has to happen for differentiation to occur.

Explanation:

Answer: Hydrogen bond or a covalent bond.

Explanation:

Answer:

Excess nutrients are a problem because they cause nutrient pollution in bodies of water. This pollution can feed dangerous algae and can kill things that make oxygen.

Answer:

Mucous membrane, membrane lining body cavities and canals that lead to the outside, chiefly the respiratory, digestive, and urogenital tracts. Mucous membranes line many tracts and structures of the body, including the mouth, nose, eyelids, trachea (windpipe) and lungs, stomach and intestines, and the ureters, urethra, and urinary bladder.

Answer:

Hope it helps...

Explanation:

Animals help us to save our environment. Some micro organisms such as bacteria help us clean the environment; others help plants by converting free nitrogen from air and feeding the roots. Some insects and earthworms help in agriculture by increasing fertility of the soil and also by increasing organic quality of soil.

Answer:

When a predator goes extinct, all of its prey is released from that predation pressure, and they may have big impacts on ecosystems. If there are too many deer, for example, they can really change the ecosystem because they can destroy forests, and they also carry diseases.

Answer:

c.) force is the ability to change motion and transfer matter

Explanation: just took the quiz so this answer is reliable!

Answer:

ammonia i think my guess

Explanation:

Answer:

ammonia

Explanation:

Answer:

prophase-during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears

Metaphase-during which the chromosomes become attached to the spindle fibers.

Anaphase-which the chromosomes move away from one another to opposite poles of the spindle.

Telophase-in which the chromatids or chromosomes move to opposite ends of the cell and two Identical  nuclei are formed.

Explanation:

mass, volume, density

Answer:

Answer D is the correct option among 4

Answer:

Mitochondria Function

Explanation

Cellular respiration is the process of making ATP using the chemical energy found in glucose and other nutrients. In mitochondria, this process uses oxygen and produces carbon dioxide as a waste product.

Answer:

Eutrophication, the gradual increase in the concentration of phosphorus, nitrogen, and other plant nutrients in an aging aquatic ecosystem such as a lake. The productivity or fertility of such an ecosystem naturally increases as the amount of organic material that can be broken down into nutrients increases.

Answer:

Answer:

Krebs cycle

Explanation:

Electron transport chain

AD+ and NADH: NAD+ is an electron carrier that accepts a pair of high-energy electrons to become NADH. The NADH carries the high-energy electrons to the electron transport chain where they are used to build high-powered ATP molecules.

Hope it helps!

Answer:

Mass extincions have occured several times on Earth.

Explanation:

Answer:

C.     Mass extincions have occured several times on Earth.

Explanation:

took the test :)

i dont kno if its wrong or right

but enzymes work by lowering the activation energy of chemical reactions

Explanation:

Answer:

A, and D

Explanation:

its the answer I believe

Answer:

Nitrogen, Calcium

Explanation:

im pretty sure.

Answer:

S phase

Explanation:

Answer:

B) The number of neutrons always equals the number of protons.

Explanation:

Answer:

B) The number of neutrons always equals the number of protons.

Explanation:

emilythompson35464

hope this helps srry if it doesn't tho

Answer:

ANSWER C: Predator Prey

Answer:

fajamarutation process

Explanation:

Answer:

It's true that anabolic steroids used by some bodybuilders and athletes contain testosterone or chemicals that act like testosterone. The difference is that doses used in testosterone replacement only achieve physiologic (natural) levels of hormone in the blood.

Explanation:

does this help :)

Difference

The sympathetic nervous system prepares the body for the “fight or flight” response during any potential danger. On the other hand, the parasympathetic nervous system inhibits the body from overworking and restores the body to a calm and composed state.

Examples of parasympathetic responses

An easy acronym to remember how and where the PSNS works is SLUDD. This stands for:

Salivation: As part of its rest-and-digest function, the PSNS stimulates production of saliva, which contains enzymes to help your food digest.

Lacrimation: Lacrimation is a fancy word for making tears. Tears keep your eyes lubricated, preserving their delicate tissues.

Urination: The PSNS contracts the bladder, which squeezes it so urine can come out.

Digestion: The PSNS stimulates the release of saliva to promote digestion. It also enacts peristalsis, or the movement of the stomach and intestines, to digest food as well as release bile for the body to digest fats.

Defecation: The PSNS constricts the sphincters in the intestine and moves digested food material down the digestive tract so a person can have a bowel movement.

Examples of the Sympathetic Nervous System Response

The classic case of SNS response is a physical danger, especially with a potential predator, and the preparation of the body for either fight-or-flight. The overall system is designed to enhance voluntary muscle activity while shutting down all non-essential functions.

Arterioles and veins in most vascular beds constrict, reducing blood flow to the skin and digestive organs. Sphincters in the digestive organs also constrict, to control the flow of food from one organ to the next. However, coronary blood vessels, pulmonary circulation and parts of the respiratory tree respond with dilation, to enhance cardiac output. The heart beats with greater contractile force and at a higher frequency as well. Vasoconstriction in many parts of the body also increases blood pressure.

Similarity

Both are the part of ANS. Both originate from the spinal cord. Both have huge influence on physiological process of the body such as respiration, circulation, digestion, urination and reproduction.

The SYMPATHETIC nervous system drives fight-or-flight responses, whereas the PARASYMPATHETIC nervous system drives “rest and digest” responses.

The autonomic nervous system (ANS) comprises the sympathetic system and parasympathetic system.

The sympathetic nervous stimulates 'fight or flight' responses, whereas the parasympathetic system activates 'rest and digest' responses.

The sympathetic nervous system is involved in body reactions such as the acceleration of the heart, constriction of the blood vessels, etc.

The sympathetic nervous system is involved in body reactions such as lowering the heart rate, lowering the flow of blood to skeletal muscles, etc.

Some examples that activate the parasympathetic system include:

Some examples that activate the sympathetic system include:

In conclusion, the SYMPATHETIC nervous system drives fight-or-flight responses, whereas the PARASYMPATHETIC nervous system drives “rest and digest” responses.

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Answer:

it was a shotgun

Explanation:

i took the test

Answer:

Plants Adapting

Explanation:

Plants adapt to their environment from necessity. Plants may also adapt by growing lower and closer to the ground to shield themselves from wind and cold. Desert environments may have some of the following adaptations, these help the plant to conserve food, energy and water and still be able to reproduce effectively.

I can not fully answer your question because I do not know these conditions, did your teacher give a list?

Answer:

B

Explanation:

Took the quiz

Answer:

B

Explanation:

I took the quiz as well.