i NEED HELP ASAP with my science analysis questions !

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Answer:

Observation:

When to turn on the electric fireplace, it is not working

problem:

The electric fireplace is out of order therefore by providing electricity it i snot working.

The biodiversity will decrease due to an increase in pollution is the effect will have on the biodiversity on the river ecosystem.

Option A

Explanation:

Biodiversity is the actual collection of total amounts of flora and fauna present in a particular ecosystem. The river ecosystem consists of the aquatic plants, the aquatic animals like fishes,etc and even the surrounding land plants and animals, who utilize the river water for their living.

The inclusion of the polluted sewage of the surrounding area into the river directly mixes several chemicals to the water, which are potentially harmful for all the animals living there. This leads to destruction of the flora and fauna of both water and lands surrounding them. This hampers the biodiversity of the water as well as surrounding land.  

B. many celled eukaryotic.

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The male reproductive cell or the sperm is a cell possessing a haploid (N) number of chromosomes, while the primary spermatocyte is an immature cell with a diploid number of chromosomes.

The reason for the difference in genetic content of individual chromosomes in primary spermatocyte and spermatozoon is:

Therefore, the genetic content of primary spermatocytes differs from spermatozoon.

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The genetic content of individual chromosomes in a spermatozoon differs from that in a primary spermatocyte due to chromosome number, meiosis, and specialization.

The genetic content of individual chromosomes in a spermatozoon most likely differs from the genetic content of individual chromosomes in a primary spermatocyte due to several reasons:

Answer:

Unicellular organisms like bacteria and fungi are very useful for human in various way.  Bacteria such as NItrobactor, Psuedomonas, Lactobacillus, E.coli are very useful in variety of use., Some fungi like Penicillium,  produce antibiotics, fungi is a good source of food.

Explanation:

Here we can understand the usefulness of bacteria and fungi by following points-

Final answer:

Unicellular organisms like bacteria and fungi are useful to humans and the environment. Bacteria help decompose organic matter and are used in food production. Fungi break down organic matter, produce antibiotics, and aid in food fermentation.

Explanation:

Unicellular organisms, such as bacteria and fungi, have several uses for humans and the environment. Bacteria, for example, play a vital role in decomposing dead organic matter, thus recycling nutrients back into the ecosystem. They are also used in the production of various foods, such as yogurt and cheese. Fungi, on the other hand, are important decomposers and play a crucial role in breaking down organic matter. They are also used in the production of antibiotics, such as penicillin, and in the fermentation of food and beverages, like bread and beer.

The proteins will correspond with facilitated transportation

Option A

Carbohydrate will correspond with cellular respiration.

Option D

Lipid forms the cell membrane.

Option B

Nucleic acid will correspond with identical daughter cells.

Option C

Proteins form all the sorts of receptors that are associated with the both transport and chemical messenger of the cell. The proteins help in facilitated transportation across the cell membrane along the concentration gradient.

The carbohydrates are the chief respiratory substrate that are biologically oxidized in an aerobic respiration to give out carbon dioxide, water and energy.

The lipids are the main composition of a cell membrane which is formed of phospholipids like lecithin, cephalin etc. These lipids have both hydrophilic and hydrophobic characters which is ideal for a cell membrane.

The nucleic acids are the DNA and RNA which are the genetic messengers of a cell that carries the genetic information across the generations to maintain the particular race. They maintains the properties of the organism.

Answer:

4 ATP

Explanation:

Answer:

4 ATP I think not to sure

Answer:

D

Explanation:

These include voice changes, body shape, pubic hair distribution, and facial hair.

Breast development. changes in body shape and height. growth of pubic and body hair. the start of periods.

The first places to grow are the extremities (head, hands, and feet), followed by the arms and legs, and later the torso and shoulders. This non-uniform growth is one reason why an adolescent body may seem out of proportion. During puberty, bones become harder and more brittle.

During adolescence, individuals experience puberty, marked by an adolescent growth spurt, sexual maturity, and the development of primary and secondary sexual characteristics. These changes are regulated by hormones and result in noticeable physical transformations.

During adolescence, a number of significant body changes occur as part of the developmental process. Adolescence is identified by the onset of puberty, during which individuals experience a series of physical and hormonal changes that lead to sexual maturity. One notable change is the adolescent growth spurt (AGS), a period characterized by rapid growth in height and weight, and changes in body composition and proportions.

Further developments during puberty include the maturation of primary and secondary sexual characteristics. Primary sexual characteristics involve the organs needed for reproduction, such as the uterus and ovaries in females, and the testes in males. Secondary sexual characteristics are indicative of sexual maturation but do not directly involve the reproductive organs, such as the development of breasts and hips in females, and facial hair and a deepened voice in males. These changes are controlled by a complex release of hormones including GnRH, LH, FSH, testosterone in males, and estrogen in females.

Therefore, the correct answer to the question 'Which body changes occur during adolescence?' is D) growth spurts, puberty, and sexual maturity.

Pressure is the force exerted, by a substance, per unit area.

Explanation:

Pressure is given by the formulae;

P = F/ A

Whereby;

P = pressure

F = Force

A = area

Remember that ..

F = Ma

Whereby;

F = Force

M = mass

a = acceleration

Therefore pressure can be given as;

P = Ma / A

The mass of the above column of a substance multiplied by the acceleration due to gravity = pressure exerted by the substance.

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Answer:

B. decreases as altitude increases

Explanation:

I did the test

Answer:

B and C

Explanation:

Sharks, whales, and dolphins' shared physical features suggest a common ancestor. Differences such as gills in sharks and lungs in dolphins and whales show distinct evolutionary paths. The vestigial pelvic bone in whales suggests their ancestors lived on land.

Sharks, whales, and dolphins, though having similar physical features such as body shape and fin positions, have different modes of respiration. Sharks possess gills for breathing underwater while whales and dolphins have lungs, indicating evolutionary processes from a common ancestor. The presence of a vestigial pelvic bone in whales further suggests that their ancestors were land-dwelling creatures who possessed full pelvic structures, likely used for locomotion. Over time, as these ancestors adapted to water environments, the need for a full pelvis diminished, resulting in the residual bone we see today.

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nematocyst is the answer

Answer:

Revolution. As the earth rotates on its axis, it also revolves in orbit around the sun. It takes exactly 365 days for Earth to make one full trip around the sun -- our definition of a year.

Explanation:

Revolution. As the earth rotates on its axis, it also revolves in orbit around the sun. It takes exactly 365 days for Earth to make one full trip around the sun -- our definition of a year.

Answer:

Revolution.

Explanation:

Every 365 days the Earth makes a full trip around the sun. thus causing a year.

Answer:

False

Explanation:

Segmentation provides scope for evolution. Without segmentation, an organism is unable to move its body structure and hence cannot perform advanced bodily functions. Along with segmentation jointed appendages also provide scope for evolution as these enable an organism to travel and protect themselves from harmful conditions. Segmentation also allows for division which enables an organism to evolve continuously and hence become further advanced to perform much higher activities and functions. Hence, the given statement is false

Answer:

Which type of fossil is an imprint made by an organism that was preserved in rock? A.cast fossil B.sedimentary fossil C.mold fossil D.petrified. I honestly don't know the answer but in my opinion its  B.sedimentary fossil don't know look here.

Explanation:

Well a sedimentary fossil does have organisms, plus+ Jump to Fossils - Sedimentary rocks contain important information about the history of the Earth. They contain fossils, the preserved remains of ancient plants and animals. ... Sedimentary rocks can contain fossils because, unlike most igneous and metamorphic rocks, they form at temperatures and pressures that do not destroy fossil remains.

Sedimentary fossil is an imprint made by an organism that was preserved in rock.

Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation.

Almost all fossils are preserved in sedimentary rock. Organisms that live in topographically low places (such as lakes or ocean basins) have the best chance of being preserved.

Hence , B is correct option

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Answer:

Circulatory system and respiratory system.

Explanation:

The respiratory system is the system responsible for ensuring the capture of oxygen from the environment and the release of carbon dioxide. In addition, this system is related to smell, that is, our ability to allow odors and is also related to speech, due to the presence of so-called vocal folds in one of the organs of the respiratory system.

When the respiratory system captures oxygen, it gets to see the circulatory system come into action. The circulatory system is the system responsible for ensuring the transport of blood throughout the body, thus allowing our cells to receive, for example, nutrients and oxygen. This system is formed by the heart and blood vessels.

Answer:

The answer is : to ensure the international trade does not threaten species survival. APEX

Explanation:

The main goal of CITES is to ensure that international trade does not threaten species survival. The correct option is A.

The Convention on International Trade in Endangered Species of Wild Fauna and Flora is abbreviated as CITES.

The primary goal of CITES is to regulate and monitor the international trade of endangered animal and plant species in order to ensure their survival.

The goal is to prevent species overexploitation through international trade by imposing controls and regulations on their trade.

The ultimate goal is to keep ecosystems balanced and to ensure that threatened and endangered species are not harmed by international trade.

The primary goal of CITES is to ensure that international trade does not endanger the survival of species.

Thus, the correct option is A.

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Answer:

1. A

2. All( Cells require water and oxygen to survive

All living things are made up of one or more cells

All living things rely on several different types of cells.

Those are what I feel are the answers

The scientific experiment sets a goal, it is tested by experiments reportedly and cannot be proved false is known as theory, hence for question 1 option d is correct.

Cell theory defines all dividing cells as coming from another cell, hence question 2 option b is correct.

The goal of scientific experiments is to know how repeatedly a world changes during evolution, experiments lead to new theory and facts which is useful for the next research.

In 1600 when advanced microscopy is discovered, cells can be studied more accurately and cell theory was proposed, and it is defined as every cell coming from another dividing cell.

Experiments sets new discovery in the world which is helpful in the field of science, it sets new theory, rule, and facts.

Therefore for question 1 options d theory is correct and for question 2 option b is correct.

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The particles in a liquid state are able to move freely, with some friction occurring.

The correct answer is B. Particles are able to move freely, some friction occurring. In a liquid state, the particles have enough energy to overcome some of the attractive forces between them, allowing them to move and flow. While the particles are still in close proximity, they are not tightly packed together like in a solid state. The movement of liquid particles gives liquids their characteristic ability to take the shape of their container.

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The molecules do gain or loose energy from surrounding all the time depending on the temperature difference. So its not only during the state changes.

Option A.

The molecules in a particle has a particular amount of energy all the time. This is the molecular kinetic energy that owes to the vibration of a molecule at a particular time.

In case of a temperature difference between a matter and its surrounding, the molecules do either absorb energy or emit energy. During a state change, the energy absorption or emission is huge, which leads to the change of state, and there's no change in temperature of the matter at that particular time. So energy changes do occur at any time, not only during the change of state

Answer: Molecules gain or lose energy during any temperature change, not just phase changes.

Explanation: Molecules can experience an increase in temperature in circumstances other than phase changes. Also, i got 100 on the exam

Answer:

it's B

Explanation:

Tropical rainforest biome occur in regions that like between the equator and latitudes 5°-10° N and S. The forest areas are mainly in the lowlands but they can also extend hillslopes to a height of 600 or 900m.

An example is in Nigeria.

The climate in tropical rainforest regions is hot and wet throughout the year. It is dense and made up of many types of broad leaved trees that are mostly evergreen.

Epiphytes plants and Woody climbers known as Lianas are common features of these forests.

PeAcE.

Final answer:

The tropical rainforest biome is located near the equator. This biome is distinct from boreal forests, which are found in the colder regions south of the Arctic Circle and are characterized by coniferous trees.(Option B)

Explanation:

The tropical rainforest biome is found near the equator. Characterized by high biodiversity and constant warmth, it experiences abundant rainfall throughout the year. The tropical rainforest is the most diverse terrestrial biome and is often referred to as 'nature's pharmacy' due to the potential for new drugs from the organisms that inhabit these forests. With its dense vegetation of evergreen trees with broad leaves, the tropical rainforest biome plays a crucial role in the Earth's ecology and climate.

Boreal forests, also known as taiga or coniferous forests, are a different biome entirely, found in much colder regions south of the Arctic Circle. The boreal forest experiences cold, dry winters and short, cool, wet summers, and is characterized by trees such as pines, spruces, and firs that can tolerate the harsher conditions. This biome spans across Northern America and Eurasia, with its southern border extending to roughly between 50° and 60° north latitude.

to assist in the movement of substances across the membrane by facilitated diffusion or active transport. thus option D is correct.

Diffusion is the passive process where the movement of molecules occur along with the concentration gradient.

It helps in the movement of solute or solvent in and out of the cells from a region of higher concentration to a region of lower concentration gradient.

Liquid and gaseous state of the substance move by the process of  diffusion,  some factors are Temperature, Area of Interaction, Size of the Particle, concentration gradient.

Diffusion involve in respiration by diffusing the carbon dioxide gas out through the cell membrane into the blood, also occurs in plant cells mainly root hair cells, ions movement across the neurons.

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Final answer:

The purpose of carrier proteins is to aid in the transport of substances across cell membranes, either by facilitated diffusion or active transport such as the sodium-potassium pump, which requires ATP.

Explanation:

The purpose of the carrier proteins mentioned in question 1 is D) to assist in the movement of substances across the membrane by facilitated diffusion or active transport. Carrier proteins are vital for cell function because they enable the movement of substances that cannot pass through the cell membrane unaided due to their size, polarity, or concentration gradient. While facilitated diffusion does not require energy and moves substances down their concentration gradient, active transport uses cellular energy in the form of ATP to move substances against their concentration gradient. An example is the sodium-potassium pump, which is crucial for maintaining the electrochemical gradient across the cell membrane by moving sodium and potassium ions in opposite directions.

Helps digest food

bile is not stored in the liver, its is only made

Answer: Helps digest food

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Explanation:

I took the test

Answer:

75%

Explanation:

yeaoydyidaiydaosdyodsyozdh

Answer:

71% of the earth is covered in water

Explanation:

Answer:

c - the volume of solution changes due to movement of water.

Explanation:

Passive transport is the movement of a substance from an area of high concentration to a low concentration across a semi-permeable membrane, that occurs without the expenditure of energy.

Option A is true: substances will always move from an area of high concentration to a lower concentration. This creates what is called a concentration gradient (which forms when a physical area contains a range of concentrations of s particular substance (option D). This occurs until the concentration of a solution approaches an equilibrium, as indicated in option B.

However, the movement of substances does not affect the movement of or the volume of water, only the chemicals, ions etc. in the water.

Answer:
Its just Concentration, pH, and temperature

Explanation:

I got this question on discovery education and these are the exact answers! :)

Enzyme functionality can be altered by temperature, pH levels, enzyme concentration, substrate concentration, and the presence of inhibitors or activators; high temperatures and extreme pH levels can lead to denaturation of enzymes, affecting their ability to function properly.

Factors that influence the functionality of enzymes, which are crucial in the functioning of DNA and RNA, are of great importance to understand. The primary factors that can change enzyme functionality include temperature, pH levels, enzyme concentration, substrate concentration, and the presence of inhibitors or activators. High temperatures and extreme pH levels can cause enzymes to denature, meaning they lose their three-dimensional structure which is essential for their function.

A denatured enzyme has an altered active site, preventing it from binding effectively with substrate molecules. Similarly, the presence of certain chemicals or changes in the concentration of ions in the environment, such as an increase in H+ ions (acidity), can affect the enzymatic activity by changing its shape or charge properties. Environmental factors, like ultraviolet light, may also induce changes in the genetic material which can affect gene expression by modifying how accessible the DNA is for transcription.

Answer:

The answer is "galaxies."

Explanation:

The "universe" is also called "the cosmos." It includes space, time and heavenly bodies such as planets, sun, moon, galaxies, etc.

A galaxy is considered to be a big collection of gas, dust, stars (including their solar systems). All of these are being held together by "gravity." The Earth's galaxy is called the "Milky Way." The name is derived from how it appears from afar.

Other than our galaxy, there are millions or even billions of other galaxies in the universe! They come in different colors, shapes and sizes. They appear clustered together due to "mutual gravity." A cluster consists of hundreds to thousands of galaxies.

Answer:

Size and polarity

Explanation:

I can think of two reasons: