pls help pls pls pls​

Answer:

All organic compounds contain CARBON AND HYDROGEN. carbon atoms have FOUR valance electrons so it can bond with TWO other atoms.

(I am also not sure that it 100% two but that is what I think.)

Answer:

Carbon and Hydrogen

Explanation:

carbon atoms has four valence electrons meaning that it can bond with two others

Answer:

NaCl

Explanation:

ionic bond is the bond results from the electro static force of attraction between oppositely charged ions in other words its the linkage formed by the transfer of one or more electron from one atom to another atom

Na gives it electron to chlroine so Na becomes positively charged and Cl becomes negatively charged and they attract each other to form ionic bond

Na is positive Cl is negative

Answer:

your hypotheses is what you predict the results of the test are gonna be based on evidence

Explanation:

Answer:

S phase

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:

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 :)

Answer:

subartic/b

Explanation:

I took the test! If Im right please mark brainliest!

Answer:

Yes the answer is b.

Explanation:

I took the unit test to

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.

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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mass, volume, density

Answer:

Mass extincions have occured several times on Earth.

Explanation:

Answer:

C.     Mass extincions have occured several times on Earth.

Explanation:

took the test :)

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:

1no. is the answer I think

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:

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:

Answer:

they change over time based on newly gathered information, such as molecular information about a species. Organisms are now classified in a more specific manner which has ended up introducing so many new species of organisms.

Explanation:

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:

A, and D

Explanation:

its the answer I believe

Answer:

Nitrogen, Calcium

Explanation:

im pretty sure.

Answer:

a

Explanation:

it allows you to go up but not to hard

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:

it was a shotgun

Explanation:

i took the test

Answer: Hydrogen bond or a covalent bond.

Explanation:

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:

fajamarutation process

Explanation:

Answer:

ANSWER C: Predator Prey

Answer:

Answer:

B

Explanation:

Took the quiz

Answer:

B

Explanation:

I took the quiz as well.

Answer:

its the pancreas

Explanation: