Which element provides strength to the exoskeletons of clams and oysters?
sulfur
oxygen
hydrogen
phosphorus

Answers

Answer 1

Answer:

phosphorus

Explanation:

Since Phosphorus is an essential component of phospholipids, nucleic acids, phosphoproteins (casein), high energy phosphate esters (ATP), hexose phosphates, creatine phosphate, it also provides strength to the exoskeletons of clams and oysters.

Answer 2

Answer:phosphorus

Explanation:


Related Questions

A student wanted to find out more about the cell cycle.
The student made a slide of an onion root tip.
She counted the number of cells in each stage of the cell cycle in one field of view.
The table below shows the results.
UNDAN
Stages in the cell cycle
Stage 1 Stage 2 Stage 3 Stage 4
Non-dividing cells
Total
Number of cell
20
S
9
9
4
2.
2
1
36
Each stage of the cell cycle takes a different amount of time.
Which stage is the fastest in the cell cycle?

Answers

Answer:

ask ya momma, duh duh dummy

Explanation:

do ya own work

What molecule from the atmosphere is captured during photosynthesis to generate plant food and biomass?

Answers

Answer:

The carbon comes from carbon dioxide used during photosynthesis. During photosynthesis, plants convert the sun's energy into chemical energy which is captured within the bonds of carbon molecules built from atmospheric carbon dioxide and water.

Explanation:

:)

What event would most directly lead to the development of female external genitalia?.

Answers

Answer:

If embryonic testes do not produce testosterone.

Explanation:

During pregnancy the embryo and its surrounding tissues produce hormones that prevent endometrial cell death. If embryonic testes do not produce testosterone, a genetic male develops female external genitalia.

Which reaction would occur at the anode in a voltaic cell?.

Answers

Oxidation is the type of reaction which takes place at the anode in a voltaic cell.

What is Oxidation?

This is defined as a process in which an electron is removed from a molecule during a chemical reaction.

The anode is the negative electrode in a voltaic cell and is where oxidation reaction takes place.

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Could the world's
Cavendish banana crop be
destroyed some day?
Construct an explanation to
support your answer. Base
the explanation on evidence
from the potato famine.

Answers

Cavendish banana crop be destroyed some day due to Panama disease.

How Cavendish banana crop be destroyed?

The Cavendish banana is considered as the most popular banana worldwide but it could disappear in the coming years because of the attack of an aggressive fungus called "Panama Disease."

This disease destroy the banana plant at faster rate which leads to its destruction so we can conclude that Cavendish banana crop be destroyed some day due to Panama disease.

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Enzymes are involved in the reactions,
Select one:
O a. Photosynthesis
O b. Neither Photosynthesis nor Cellular Respiration
O c. Cellular Respiration
O d. Both Photosynthesis and Cellular Respiration

Answers

Answer:

D.

Explanation:

•Specific enzymes catalyze each cellular reaction in cellular respiration. The main role of enzymes during the respiration reaction is to assist in transferring electrons from one molecule to another.

•The reactions of photosynthesis, and many other biological processes, are controlled by enzymes.

ENZYMES ARE REQUIRED FOR MOST OF THE CHEMICAL REACTIONS THAT OCCUR IN ORGANISMS

Based on your observations, which part of the radish plant controls the
plant’s phototropism? Support your answer.

Answers

Answer:

you are asked to write your laboratory report right?

Explanation:

we need to see the laboratory experiment to answer this question. But according to my search, the answer may be the following:

Stems in these plants exhibit positive phototropism and grow in the direction of a light source. Photoreceptors in plant cells detect light, and plant hormones, such as auxins, are directed to the side of the stem that is furthermost from the light.

A sequence of dna that codes for a specific, detectable product, such as a protein or rna is called a

Answers

Gene is a sequence of DNA that codes for a specific, detectable product, such as a protein.

What is a Gene?

This is defined as the basic physical and functional unit of heredity and  occupy a fixed position on a chromosome.

It is also the sequence of DNA that codes for a specific, detectable product, such as a protein or RNA.

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A sequence of DNA that codes for a specific, detectable product, such as a protein or RNA is called a Gene.

What do you mean by RNA?

RNA may be defined as a single-stranded molecule that has a shorter chain of nucleotides that carries genetic information that is translated by ribosomes into various proteins necessary for cellular processes.

Gene is the sequence or stretch of the DNA which carries genetic information. It is the nucleotide sequence that can synthesize functional proteins or enzymes.

Therefore, a sequence of DNA that codes for a specific, detectable product, such as a protein or RNA is called a Gene.

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The united nations defines a megacity as having at least how many inhabitants?.

Answers

Answer: 10 million people

Explanation:

A megacity is defined as a city with a population of at least 10 million.

Ex: New York, US; Tokyo, Japan; Shanghai; China

Vitamin D regulates Multiple Choice blood calcium levels. Fluid balance. Oxidation and reduction reactions. Energy metabolism

Answers

Vitamin D help to regulate blood calcium levels.

What is Vitamin D?

Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and many other biological effects. In humans, the most important compounds in this group are vitamin D₃ and vitamin D₂. .

It help to absorb calcium and potassium in the body.

Therefore, Vitamin D help to regulate blood calcium levels

Explain why and how humans depend on photosynthesis for survival.

Help please! 3:46 4/5/2022 (American)

Answers

Answer:

because when plants do photosynthesis it take our co2 and gives us oxygen which we need to survive

Which of the characteristics is common to both arthropods and annelids and suggests that the two groups shared common ancestry?.

Answers

Answer:

Body segmentation

Explanation:

Both arthropods and annelids have body segments, which serves as evidence for them being close evolutionary relatives.

What organism meets the criteria for group b? question 3 options: hammerhead shark emperor penguin rattle snake box turtle

Answers

Emperor penguin meets the criteria for Group B.

The Emperor penguin is an organism that meets the criteria for group b.

Are penguins Endotherm or Ectotherm?

Endotherms: Penguins, and prairie dogs, like most other birds and mammals, are endotherms. Iguanas and rattlesnakes, like most other reptiles along with most fishes, amphibians, and invertebrates are ectotherms.

Endotherms generate most of the heat they need internally.

Thus, the emperor penguin is an organism that meets the criteria for group b.

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Give one example of cation and anion? ​

Answers

Answer:

cation: sodium(Na⁺)

anion: sulfate(SO₄²⁻)

Explanation:

hope this helps pls rate and mark as brainliest.

Answer:

cation: calcium, potassium

anion: chloride, iodine

Which characteristics do mars and earth share? check all that apply.

Answers

Atmosphere, and active volcanoes, such characteristics is shared by mars and earth.

How do both mars and earth share characterstics?Both the planets have the same area of dry land. This is because two-thirds of the area of Earth's surface is covered with oceans but water is absent on Mars.Both Mars and Earth exhibit temperature and atmosphere.The geological processes on Mars and Earth are common for example formation of volcanoes, canyons and impact basins.Mars exhibits rings but the earth does not.Earth exhibit distinct seasons but Mars do not due to reducing and hot atmospheric condition.

Thus, these are the similarity between mars and earth.

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What are the six kingdoms of life?
O Archaebacteria, Eubacteria, Animalia, Protista, Mammal, Plantae
O Archaebacteria, Eubacteria, Animalia, Protista, Fungi, Plantae
O Eubacteria, Animalia, Protista, Fungi, Species, Archaebacteria
• Insectae, Eubacteria, Animalia,
Protista, Fungi, Plantae

Answers


-Archaebacteria, Eubacteria, Animalia, Protista, Fungi, Plantae

Both A and C would be out since mammals and species are not kingdoms
Now we would be left with both B and D after looking at both answer I choose B since Insectae is not a kingdom
Hope that helped

Answer:

The answer is B

Archaebacteria, Eubacteria, Animalia, Protista, Fungi, Plantae

Explanation:

No such  thing as kindom mammal, eubacteria or insectae. edg 2021

Phase of the moon where only a very small part of the lit surface is seen from Earth.

O Gibbous

O Quarter

O Crescent

O Full​

Answers

Answer:

quarter, if i am correct. i am pretty sure that the crescent is just a little bigger.

The phase of the moon where only a very small part of the lit surface is seen from the earth is quarter. Thus, option B is correct.

What is the phase of the moon ?

Lunar phase is the phase of moon which is viewed from the earth, the lunar phase is also known as moon phase is a shape of moon's directly sunlit portion and it can be expressed quantitatively.The current moon phase for today is the new moon phase.

The moon is known as earth's only natural satellite and combinedly with earth it forms the earth-moon satellite system.

The size of moon is one quarter of earth in diameter. It is fifth largest satellite in the solar system.

The distance of moon from earth is 384,400 km. The radius of moon is 1,737,4 km.  The gravity of moon is 1.62 m/sec^2.

The total surface area of moon is 3.793×10^7 km square and it's surface pressure is 10^-7 Pascal.There are total 8 phase of moon and these are new moon, first quarter, waxing gibbous, third quarter and waning crescent.

Therefore the phase of the moon where only a very small part of the lit surface is seen from the earth is quarter. Thus, option B is correct.

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During which phase of meiosis do the homologous chromosomes line up across from each other in the center of the cell?.

Answers

Answer:

metaphase I

Explanation:

In metaphase I, homologous chromosomes line up along the center of the cell in order to be pulled apart.

hope this helps

pls mark brainliest

What is the difference between Junior planets and Terrestia planets? Which group is closest to the sun?

Answers

Answer:

Terrestrial planets include: Mercury, Venus, Earth, and Mars (in order from closest to the sun to farthest from the sun)

Jovian planets include: Jupiter, Saturn, Uranus, and Neptune (in order from closest to the sun to farthest from the sun)

Explanation:

Terrestrial planets have solid surfaces (usually rocky) with a dense metallic core, while Jovian planets are gas giants, meaning that they have no solid surface. Jovian Planets have a large gaseous composition and a small, molten rock core.

Sun

Mercury

Venus

Earth

Mars

Jupiter

Saturn

Uranus

Neptune

I hope this helped <3

What traits were the most favorable for the environment of the hummingbirds?

Answers

Examples of places where Hummingbirds live:

Alaska all the way to Chiles

Traits of Environment:

forested and woodedlots of flowershas grasslands and meadowsmarshes and Riparian corridorsDesert scrublandsCanyonGardens and backyards

*hummingbirds really do live in diverse areasso that's why can live in so many different areas

Hope that helps!

Hello people ~
The formula of exponential population growth curve, is
(a) dN/dt = rN
(b) dt/dN rN
(c) dN/rN = dt
(d) rN/dN = dt

Answers

Answer:

The Formula for exponential population growth curve is dN/dt = rN. (option A)

Explanation:

Exponential growth is a function that grows or shrinks at a constant percent growth rate

dN/dt= rN

Where,

dN = Change in no. of individuals in population.dt = Change in timeN = No. of individualsr = Per capita rate of increase.

What type of muscle assists an agonist by causing a like movement or by stabilizing a joint over which an agonist acts?.

Answers

Answer:

The correct answer is a synergist.

Explanation:

The muscles that provide movement in the musculoskeletal system act in groups or pairs, such as the hamstrings and quadriceps, or the biceps and triceps. An agonist, often known as a primary mover, is a muscle that works.

Synergists are muscles that assist the prime mover by moving in the same direction and at the same time. Synergists provide a motion similar to that of the prime mover while also stabilizing the joints that hold the agonist in place for smooth movement.

As a result, the correct response is synergist.

100 POINTS
Complete the sentence: Combustion heating and cooling appliances are sources of
and often found in basements.
O asbestos
O radon gas
O tobacco smoke
O carbon monoxide

Answers

Answer:

Carbon monixide

Explanation:

Right answer

Answer:

carbon monoxide is the awnser

Explanation:

When I took this quiz that was the right awnser.

How will gene therapy be used in the future?

Please help me
Thank you

Answers

Answer:

I think to create new medical procedures

Explanation:

Naomi runs a computer simulation for a population of mice in a meadow ecosystem. The simulation begins with 100 mice, divided equally among brown and white variants. The variants are similar apart from their body color. A mating of a white and brown mouse may produce a speckled mouse, which is mostly brown with some white markings. The table shows the numbers of each mouse variant over 7 reproduction cycles. Only adult mice are reported in the table.
Which of these events did the computer MOST LIKELY include in its simulation?
A. After cycle 2, a disease arrived that affected white mice only.
B. After cycle 2, a predator arrived that saw white mice more easily than brown mice.
C. After cycle 4, brown mice and white mice began living separately, and stopped interbreeding.
D. After cycle 4, a predator arrived that saw white mice more easily than brown mice.
E. After cycle 4, a disease arrived that affected brown mice only.

Answers

After cycle 4, a disease arrived that affected brown mice only was most likely included in its simulation.

What is Disease?

This is defined as any harmful deviation from the normal structural or functional state of an organism.

This usually leads to death and the table shows a steady decline from cycle 4 which means a disease most likely arrived which affected brown mice only.

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Pioneer species move into an area after which event? the formation of a climax community a disturbance that forms new land without soil a disturbance that clears away all plants the enrichment of soil by plants

Answers

Pioneer species move into an area after a disturbance that forms new land without soil.

Pioneer species are the first organisms to inhabit a region that has experienced a primary succession.

How do pioneer species arrive?

Primary succession begins in barren areas, such as on bare rock uncovered by a retreating glacier.

The first residents are lichens or plants that can survive in such an environment. Over hundreds of years these “pioneer species” transform the rock into soil that can support simple plants such as grasses.

Thus, Pioneer species move into an area after a disturbance that forms new land without soil.

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Answer: ( B ) - a disturbance that forms new land without soil

Explanation:

You are sailing in the South Pacific Ocean, far from any plate boundary. Looming lion the horizon is a dark braid, rounded island with sparse vegetation. A few thin flows of orange lava drip into the sea. Some smoky vapor unfurls fork the center of the island. What kind of volcano is this? Explain.

Answers

The kind of volcano in this scenario is referred to as a shield volcano.

What is a Shield volcano?

This is the type of volcano whose appearance is like that of a warrior's shield and is formed by the eruption of highly fluid lava.

The lava however becomes thinner as it travels further such that it sometimes drips into neighboring sea.

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Which protist group produces much of the oxygen on earth?.

Answers

Prochlorococcus and other ocean phytoplankton are responsible for 70 percent of Earth's oxygen production.

In eukaryotic cells, where does the basal transcription apparatus bind?.

Answers

Answer:

Located immediately upstream of the eukaryotic promoter, DNA sequences to which the basal transcription apparatus binds. Regulatory promoter DNA sequence located immediately upstream of the core promoter that affects transcription; contain consensus sequences to which transcriptional regulator proteins bind.

Explanation:

Does this answer your question?

Explain the relationship between global warming and flood. ​

Answers

Answer: As warmer tempertures cause more water to evaporate from the land and oceans, changes in the size and frequency of heavy precipitation events may in turn affect the size and frequency of river flooding.

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