Which of the following is a true statement regarding phytoplankton?

they are most commonly found near deep-sea thermal vents
they are responsible for 80% of all global warming
they are the only cause of green ocean water
they are the primary photosynthetic plants in the ocean

Answers

Answer 1

Answer:

(D) I think

Explanation:


Related Questions

ou have isolated a previously unstudied protein, identified its complete structure in detail, and determined that it catalyzes the breakdown of a large substrate. You notice it has two binding sites. One of these is large, apparently the bonding site for the large substrate; the other is small, possibly a binding site for a regulatory molecule. What do these findings tell you about the mechanism of this protein

Answers

Answer:

These findings tell us that possibly this protein has an enzymatic function, that is, it is an enzyme.

Its function can be catalytic as well as analytical.

The substrate binding site should be the largest, while the other regulatory site is the smallest.

Explanation:

This happens since hormones regulate their enzymatic activity through inhibitory sites.

They have another smaller binding site, where when an inhibitory molecule binds, it deforms the morphology of the protein causing it to no longer bind to its substrate at the binding site, therefore they inhibit the chemical reaction that is happening within the enzyme. both catalytic and analytical.

In the early days of the solar system, many planetesimals orbited the Sun. The theory has it that one large planetesimal the size of Mars struck a glancing blow to the molten Earth. How did this event contribute to the formation of the Moon?

Answers

Answer:

This event led to the breaking away of a part of earth and the part was held on by earth’s gravity and this part became the moon.

Explanation:

The formation of moon was after the formation of the earth. In the initial years of the formation of earth it was affected by several asteroid hits and comets. Small planets referred to as planetesimals  also kept continuously affecting the earth. Before 4.5 billion years ago a planetesimal which was about the size of Mars hit earth.

This hit led to the breaking away of a part of earth. The part which was sent to space by the hit was caught by the gravity of the earth and the part started orbiting around the earth. The similarity of the rocks in moon to that of earth is attributed to the fact that moon was actually formed from earth.

The moon and earth keeps influencing each other. The moon’s effect reduced the speed of earth’s rotation and the moon keeps moving away from the earth due to the influence of earth.

Answer:Molten rock broke off from Earth following the impact. The rock coalesced (gathered) into a ball, which formed the Moon.

Explanation: Edmentum

what is substances in scientific methods​

Answers

Answer:

A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., without breaking chemical bonds.

Fertilizer grade is the relative _________ in a bag of fertilizer.

Proportion

Percentage

Grade

Ratio​

Answers

Answer:

proportionhejenrn4nrrh4htj

The phenotype frequency in a populatin changews after each generation which would most likely be cause this

Answers

The answer is: Competition between organisms.

What is an anticodon?*
O the bond that holds nucleotides together
O the protein that translates RNA to amino acids
O the abbreviation for amino acids
O three bases on tRNA that attaches to a codon

Answers

Answer:

An anticodon is a trinucleotide sequence complementary to that of a corresponding codon in a messenger RNA (mRNA) sequence. An anticodon is found at one end of a transfer RNA (tRNA) molecule.

Explanation:

NPK fertilizer are added in the soil to fulfill the need of ________​

Answers

Answer:

............. the need of _Nitrogen, phosphorus and potassium_

Explanation:

Each of these fundamental nutrients plays a key role in plant nutrition. ... It's also needed to help plants grow and develop normally. Phosphorus in commercial fertilizers comes from phosphate rock.

When a cell is deprived of oxygen, its lysosomes tend to burst and release their contents into the cell. As a result of this, that cell will Group of answer choices undergo cell division. recycle damaged organelles. produce replacement lysosomes. undergo self-digestion and die.

Answers

Answer:

The correct answer is - undergo self-digestion and die.

Explanation:

Lysosomes are cell organelle that is membrane-bound and has digestive enzymes in them. These cell organelle help in digesting cells that are worn out, ruptured cells deprived of oxygen by bursting themselves.

Its bursting nature also helps in digesting and killing antigens and microbes. It is a very essential cell organelle that helps in digesting and killing damage cell parts or cells.

When a cell is deprived of oxygen, its lysosomes tend to burst and release their contents into the cell, the cell will undergo self-digestion and die.

Explanation:

Lysosomes are cell organelles that are membrane-bound and contains digestive enzymes. These cell organelle help in breaking down cellular waste.  When the cell is deprived of oxygen they burst themselves and release their content. It is a very essential cell organelle that helps in digesting and killing damaged cell parts, microbes, antigens, or cells.

So, from this we can conclude that when a cell is deprived of oxygen, its lysosomes tend to burst and release their contents into the cell, the cell will undergo self-digestion and die.

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How many genetically different gametes can this cell form?

Answers

Answer: The human genome consists of 23 pairs of chromosomes. There are therefore 223 different kinds of gametes that one individual can produce.

Explanation:

I learned 'bout this-

A mouse had a gene sequence of GTT coding for leucine, an amino acid. mutation in this gene led to the formation of GTG. However, the amino acid formed was leucine, despite the mutation. This is a mutation for the mouse

Answers

Answer:

1- substitution.

2- neutral.

Explanation:

The change in the genetic sequence of the organisms known as mutation. Mutations might be sudden and heritable in nature. spontaneous mutation and induced mutation are types of mutation.

A change that causes a change in single base pair of a gene sequence is called substitution mutation. The original leucine sequence is GTT and the mutated sequence is GTG. Thus T has been substituted by G.

Mutation can be beneficial, detrimental or neutral. The neutral mutation is that does not affect the physical change. Both GTT and GTG code for the same amino acid so it would be neutral.

Answer:

1- substitution.

2- neutral.

Explanation:

The change in the genetic sequence of the organisms known as mutation. Mutations might be sudden and heritable in nature. spontaneous mutation and induced mutation are types of mutation.

A change that causes a change in single base pair of a gene sequence is called substitution mutation. The original leucine sequence is GTT and the mutated sequence is GTG. Thus T has been substituted by G.

Mutation can be beneficial, detrimental or neutral. The neutral mutation is that does not affect the physical change. Both GTT and GTG code for the same amino acid so it would be neutral.

what is the function of cell nucleus?​

Answers

Answer:

The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus. The gel-like matrix in which the nuclear components are suspended is the nucleoplasm.

Explanation:

Four differences between the aorta and vena cava ?

Answers

Answer:

Aorta and vena cava are two main types of blood vessels attached to the heart. The main difference between aorta and vena cava is that aorta carries oxygenated blood whereas vena cava carries deoxygenated blood. Aorta is the main artery that leaves the heart through the left ventricle. It supplies oxygenated blood throughout the body. Two types of venae cavae supply blood to the right atrium of the heart. They are superior vena cava and inferior vena cava. Superior vena cava drains deoxygenated blood from the head, arms, and other upper parts of the body while inferior vena cava drains that from the lower parts of the body.

1. Aorta carries oxygenated blood while vena cava carries oxygenated blood.
2. Blood in the aorta moves at a higher pressure than that in the vena cava.
3. Aorta takes blood away from the heart while vena cava brings blood to the heart.
4. Vena cava have valves while aorta doesn’t.

I need to know what which weathering it is

Answers

Answer:

the answer is D

Explanation:

Rocks break down into smaller pieces through weathering. Rocks and sediment grinding against each other wear away surfaces. This type of weathering is called abrasion, and it happens as wind and water rush over rocks. The rocks become smoother as rough and jagged edges break off.

How do you relate energy from heat?

Answers

In a strictly physical sense, the only difference between thermal energy and heat is that heat is currently in transit. For example, the warmth radiating from a fire.

While heat is a “path function”, thermal energy can be a “point function” as it can have a defined value at a specific state.  Numerically,  Δ(Thermal Energy) = Heat Exchanged.

Hope this helps and if it does, don't be afraid to rate my answer as well as maybe give it a "Thanks"? (Or even better a "Brainliest"). And if it’s not correct, I am sorry for wasting your time, and good luck finding the correct answer :)  

Heat is energy transferred between substances or systems due to a temperature difference between them. As a form of energy, heat is conserved, it cannot be created or destroyed. It can, however, be transferred from one place to another.

Which definition is the best for “semipermeable membrane

Answers

Answer: A semi-permeable membrane is that which only allows certain

               substances to pass through.

Answer: A semipermeable membrane is a layer that only certain molecules can pass through. Semipermeable membranes can be both biological and artificial. Artificial semipermeable membranes include a variety of material designed for the purposes of filtration, such as those used in reverse osmosis, which only allow water to pass. The biological membranes of cells are created by two sheets of phospholipid, which contain a lipid tail attached to a polar head. The tail regions of each sheet cluster together, while the heads of the molecules point outward. The polar heads point both outward toward the environment of the cell and inward toward the cytosol. In this way, a hydrophobic region of lipid tails separates the two bodies of solution. This can be seen in the image below.

Explanation: sorry if its too much wording i tried to shorten it as much as possible

The application of evolutionary principles to the study of human variation Group of answer choices allowed scientists to divide the human species precisely into well-defined races helped replace earlier views based solely on observed phenotypes; brings the focus to geographic ancestry reinforced traditional views of races as fixed biological entities that do not change supports the idea that ethnicity and race are categories that can be used interchangeably (they are the same thing) when describing groups of modern humans.

Answers

Answer:

helped replace earlier views based solely on observed phenotypes

Explanation:

The study of human variation has shown that individuals from different populations (previously erroneously considered as geographic races) are often genetically more similar than individuals from the same population. In consequence, the evolutionary approach for understanding human variation has enabled us to discard the biological race concept based solely on observed phenotypes in order to provide a more realistic variation concept associated with evolutionary human development. From this perspective, it has been possible to confirm that 1-there are no human subspecies and 2- the concept of human races is not scientifically suitable to describe human variation.

After examining the fossil record, scientists have determined that scorpions today are much smaller than their extinct ancestors. For example, Jaekelopterus rhenaniae, a giant scoprtion species that lived 255 million to 460 million years ago was 2.5 meters long. Which of the following conclusions is supported by this information?
A. scorpions living today have increased their numbers since they first appeared
B. scorpions in the fossil record are smaller than their descendants are
C. scorpions have changed as a result of natural selection
D. scorpions do not appear in their original state in the fossil record

Answers

Answer: C. scorpions have changed as a result of natural selection

Explanation:

The text tells us that scorpions today are now smaller than they were in the past. This means that the scorpions have changed since then i.e. they have evolved.

The primary reason for evolution is natural selection which refers to a situation whereby only the organisms that are better adapted in their species survive.

The conclusion that can be drawn from this research therefore is that we have smaller scorpions today because they stood a better chance of survival than the larger ones and so survived whilst the larger ones died out.

state four activities that can cause hazards at work places ​

Answers

Answer:

cords in walkway , horseplay, not locking and tagging out broke machines, tools not put away in proper place

PLEASE HELP BRAINLIST GIVER HERE PLEASE HELPPPPPPPPPPP

Which of the following terms means "manmade"?
anthropology
naturopology
is anthropogenic
naturogenic

Answers

Answer:

Anthropology

Explanation:

this is the answer hope it helps you

What is the RNA sequence that corresponds to this DNA sequence? ACC GCG
TAT GCT *
TGG CGC ATA CGA
O UGG CGC AUA CGA
O ACC GCG UAU GCA
ACC GCG TAT TTT

Answers

Answer:

O UGG CGC AUA CGA

Explanation:

Which of the following best describes daily temperatures in deserts?a. hot during the day and cold at night b. hot during the day and warm at night cool during the day and very cold at night d. they depend upon the type of desert and its location Please select the best answer from the choices provided

Answers

a would be the best answer out of these choices because it’s closest to hot during the day and cool at night
A. Hot during the day and cool at night


The graph below shows how two different enzymes react with a substrate as
the temperature increases,
Enzyme A
Enzyme B
20
20
15
POR andere
10
10
5
0
0 10 20 30 40 50 60 70 BO
0 10 20 30 40 50 60 70 80
Temperature (°C)
Temperature (°C)
Based on the results, what conclusion can be drawn about the action of the
enzymes as the temperature increases?
O A. Enzyme A is a better catalyst at 70°C than enzyme B.
O B. Enzyme A uses up all the substrate faster than enzyme B.
O C. Enzyme B stays effective at higher temperatures than enzyme A.
O D. Enzyme B is useful for different reactions than enzyme A.

Answers

Enzyme b stays effective sr higher temps than enzyme a

Enzyme B stays effective at higher temperatures than enzyme A. Therefore, option (C) is correct.

What are enzymes?

From the graph, it can be observed that Enzyme B remains effective at higher temperatures, while Enzyme A is less effective at higher temperatures. As the temperature increases, Enzyme A's activity decreases and is less efficient in converting the substrate into product, while Enzyme B remains active at higher temperatures and converts more substrate into product.

Therefore, the conclusion that can be drawn from the graph is that Enzyme B stays effective at higher temperatures than Enzyme A.

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Construct a hexagon of sides 50mm​

Answers

Explanation:

measure 60° and construct a circle,draw arcs around it and join them

Whai is the name of the process that plants use to remove carbon dioxide from the atmosphere?

Answers

Photosynthesis is the answer. Green plants remove carbon from the atmosphere by photosynthesis.

Submit te
4
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Cell Processes and Transport: Mastery Test
4
Select the correct answer from each drop-down menu.
Sodium and potassium lons are essential for muscle contractions of the heart. The ions are transported using a pump, which obtains
energy by the breaking of
. This action requires the expense of energy. So, sodium and potassium ions are transported using
Reset
Next

Answers

Answer:

Cell

Explanation:

Sodium and potassium ions are essential for muscle contractions of the heart, and the ions are transported using a pump, which obtains energy from the breaking of ATP molecules, this action requires the expenditure of energy, so sodium and potassium ions are transported using active transport.

What is muscle contraction?

Sodium and potassium ions play a crucial role in muscle contractions, including those of the heart, and to maintain the appropriate concentration of these ions inside and outside the cell, the body uses a protein pump called the sodium-potassium pump, which is an active pump. It requires energy to move substances across cell membranes; the pump uses the energy released by the breakdown of ATP molecules to change its shape, transport the sodium and potassium ions across the membrane, and regulate the muscle contraction.

Hence, the ions are transported using a pump, which obtains energy from the breaking of ATP molecules, this action requires the expenditure of energy, so sodium and potassium ions are transported using active transport.

Learn more about the muscle contraction here.

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question is incomplete, complete question is below

Select the correct answer from each drop-down menu.

Sodium and potassium ions are essential for muscle contractions of the heart. The ions are transported using a pump, which obtains energy by the breaking of ----. This action requires the expense of energy. So, sodium and potassium ions are transported using---

ATP,

active transport.

help pls *serious ppl only*

Answers

Answer:

6 for white parents, and 6 for black parents.

The volume of air in the lungs is controlled by the​

Answers

The diaphragm,

During inhalation, the diaphragm is contracted which increases the volume of the lung cavity. During exhalation, the diaphragm is relaxed which decreases the volume of the lung cavity

¿Cuál de las siguientes opciones son adaptaciones de las plantas al desierto? a) Las raíces superficiales y extensas. b) Las hojas de color amarillas c) El cuerpo carnoso de las plantas d) Las hojas modificadas en forma de espina

Answers

Answer:

a) Las raíces superficiales y extensas

c) El cuerpo carnoso de las plantas

d) Las hojas modificadas en forma de espina

Explanation:

En biología, una adaptación refiere al proceso de cambio evolutivo mediante el cual los organismos de una especie/taxón hacen frente a determinadas condiciones ambientales. Las plantas han desarrollado diferentes adaptaciones en ambientes desérticos a fin de evitar al máximo la pérdida de agua, el factor más limitante en este tipo de ambientes. Las plantas capaces de soportar largos periodos de sequías se denominan xerófitas. En primer lugar, además de servir como una buena defensa contra herbívoros, las hojas en forma de espina le permiten a una planta almacenar agua durante los períodos de precipitaciones. En segundo lugar, las raíces de plantas desérticas pueden disponerse superficialmente con el objetivo de absorber la mayor cantidad de agua posible. En tercer lugar, las plantas suculentas o crasas son aquellas que tienen tejidos carnosos los cuales pueden almacenar agua en sus hojas, tallos o raíces. Durante los periodos de lluvia leve, las suculentas almacenan grandes cantidades de agua para sobrevivir durante la temporada seca (incluso existen especies vegetales que sobreviven solamente durante la temporada húmeda y producen semillas que toleran la temporada seca).

The equation shows reactants to a neutralization reaction.

Ca2+ + OH– + H+ + NO
Which describes what will happen to the H+ when these reactants form products?

H+ binds with NO to make a salt.
H+ binds with Ca2+ to make an acid.
H+ binds with OH– to make water.
H+ binds with Ca2+ to make a base.

Answers

Answer:

Ca²⁺ + OH⁻ + H⁺ + NO₃⁻

Ca(OH)₂ + 2HNO₃ → Ca(NO₃)₂ + 2H₂O

Ca²⁺ + 2OH⁻ + 2H⁺ + 2NO₃⁻ → Ca²⁺ + 2NO₃⁻ + 2H₂O

OH⁻ + H⁺ → H₂O

H⁺ binds with OH⁻ to make water

Answer:

C

Explanation:

did it on edge 2022

Which is most likely an example of pseudoscience?


A doctor’s study shows that insulin released constantly in the body regulated blood sugar better than injected insulin.

An experiment concludes that two populations of squirrels look similar but are not closely related.

Data shows that dogs live longer by using a certain brand of dog food.

Most people believe that drinking milk can soothe heartburn.

Answers

Answer:

Most people believe that drinking milk can soothe heartburn.

Explanation:

Pseudoscience refers to practices and beliefs that are believed to be scientific but in actuality, do not follow any known scientific method. Even after it has been logically proven that these practices have no scientific backing people continue to believe in them because through confirmation bias, they believe that they work.

True science is evidence and research-based. Pseudoscience as seen in the last option is just based on belief.

Answer:

Most people believe that drinking milk can soothe heartburn.

Explanation:

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