I REALLY NEED HELP ASAP!!!!!!!

*I attached a picture but heres the question just in case!"

"The diagram below shows the structures of an animal cell. What is structure 3, and how does it help sustain life?"

Answer: The colour of A before the starch test is GREEN while after the starch test is BLUE- BLACK. The equation for photosynthesis is

6CO2 + 6H2O → C6H12O6 + 6O2.

Explanation:

PHOTOSYNTHESIS is the process by which green plants use energy from sunlight to manufacture their own food. It is a building up process since simple inorganic compounds such as carbondioxide and water are built up into large organic compounds such as glucose and OXYGEN is given off as a by product.

Oxygen given out in photosynthesis occurs in the light stage during the process of photolysis of water. This occurs when the chlorophyll traps, absorbs and captures light energy and become energised. The energised chlorophyll supplies energy which is to split molecules of water into hydrogen ion ( H+) and hydroxyl ion ( OH-). The hydroxyl ion is reconverted to water and oxygen is given out as a by product.

To show that chlorophyll is NECESSARY for photosynthesis, a variegated leaf with green and yellow patches is used for an experiment.

The green portion is marked A and the yellow portion marked B. The leaf is tested for starch using the procedure below:

--> place leaf in boiling water for half a minute to kill it.

--> decolorize leaf by placing it in hot alcohol.

--> dip decolorize leaf in hot water to soften it.

--> place leaf on tile and add iodine solution to it.

RESULT: It would be found that only the green parts contain starch as blue+black colouration is observed while yellow area is unaffected by iodine.

Answer:

C. Aerobic respiration

Explanation:

Aerobic respiration occurs when oxygen is present

Anaerobic respiration occurs in the absence of oxygen. Anaerobic respiration is usually associated with fermentation process (eg Alchohol production)

The main difference between aerobic and anaerobic respiration is that aerobic respiration needs oxygen to occur, while anaerobic respiration does not. Option C. Only aerobic respiration requires oxygen.

Aerobic and anaerobic respiration occurrence depends on the presence or absence of oxygen. Option C. Only aerobic respiration requires oxygen.

Cellular respiration follows two ways, which depend on the presence or absence of oxygen, and both of them begin with the process of glycolysis, which occurs in the cytoplasm and does not need oxygen to occur.

This type of respiration occurs in the presence of free oxygen. It involves a series of reactions by which pyruvic acid (product of glycolysis) turns into CO₂ and H₂O, producing many ATP molecules.

Aerobic Respiration occurs in mitochondria, and takes place in two steps or stages: Krebs cycle and electron transporter chain.

Glycolysis and Krebs cycle produce electrons. These electrons then travel along the electron transporter chain while releasing energy, and ATP is produced.

This is the type of respiration that occurs in the absence of free oxygen.

It is also a series of reactions by which the cell produces 2 ATP molecules by using pyruvate (product of glycolysis).

Anaerobic respiration can occur in two ways: lactic fermentation and alcoholic fermentation.

The whole anaerobic process occurs outside the mitochondria.

Options:

A). Only aerobic respiration involves fermentation. FALSE.

Anaerobic respiration involves fermentation.

B). Only anaerobic respiration occurs in the mitochondria. FALSE.

Aerobic respiration occcurs in mitochondria and anaerobic respiration occurs in the cytoplasm.

C). Only aerobic respiration requires oxygen. TRUE

Anaerobic respiration does not need oxygen.

D). Only anaerobic respiration produces carbon dioxide. FALSE

Alcoholic fermentation produces CO₂ too.

The correct option is C. Only aerobic respiration requires oxygen.

You can learn more about aerobic and anaerobic cellular respiration at

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Answer:

Aquatic animals can be found in water habitats, which can be either fresh or marine. Terrestrial animals can be found exclusively in the land. Aquatic animals respire through gills or their skin. ... The main difference between aquatic and terrestrial animals is their habitat and modes of living

Explanation:

Answer:

being destroyed easily

Explanation:

aquatic organisms are faced with lots of challenges,,,eg.....oilspillage on water bodies,this prevents entry of oxgen into water hence suffocation leading to death,also growth of weeds such as water hyacinth which suck nutrientss and oxygen from water,,,also aquatic krganisms are hunted by lots of predators compared to that of terrestrial

Answer:

yes thats right, its the sun

Hi, rachellelunaa!!

I think the reason we have so many bones is because, firstly, the cranium is such a unique shape that we need multiple bones to form it. Also, another reason we are born with separate cranial bones is that when a baby is born, there is an incredible amount of pressure being administered to the baby during the process. The many unfused bones allow the child's head to be malleable, and therefore preventing damage to the skull and brain. As we grow, we no longer need these bones to be malleable and they fuse together.

I really hope this answers your question!!

The sutures are flexible, the bones can overlap during birthing, preventing the baby's head from pressing against the baby's brain and causing damage.

Skeletal structure of the head. The cranium, which surrounds and protects the brain, is made up of cranial bones and facial bones (bones that form the eye sockets, nose, cheeks, jaw, and other parts of the face).

The two remaining cranial bones are covered by the frontal bone. The sphenoid bone and ethmoid bone are these.

Behind your eye sockets, the sphenoid bone supports the muscles of your face. At the peak of your nose, between your eye sockets, is the ethmoid bone.

Therefore, preventing damage to skull and brain, we are born with separate cranial bones.

Learn more about cranial bones here:

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Answer:

mRNA - UGC UGC C G UAAUG UC CAU UGC GG

Explanation:

tRNA - ACG ACG G C AUUAC AG GUA ACG CC

Answer:

The heat and pressure.

Explanation:

Heat and pressure caused the three rock types to change, as well as weathering and erosion.

Answer:

Different rocks have different characteristics because of their minerals, the ways in which the rocks were formed, and the processes that acted on the rocks since they were formed.

Explanation:

Hope this helped!!!

Answer:

such as glucagon, bind to membrane-bound receptors. The binding of the hormone triggers a signal transduction pathway, a process of molecular changes that turns the hormone's extracellular signal into an intracellular response.

Explanation:

How does an amino acid-based hormone changes a cells activity ?

The majority of amino acid-based hormones, such as glucagon, bind to membrane-bound receptors. The binding of the hormone triggers a signal transduction pathway, a process of molecular changes that turns the hormone's extracellular signal into an intracellular response.

I really hope this helps!! Have an amazing day <3

Answer:

A

Explanation:

D isn't a real thing in the cell

Answer:

Corrosion is a natural process that converts a refined metal into a more chemically stable form such as oxide, hydroxide, or sulfide. It is the gradual destruction of materials by chemical and/or electrochemical reaction with their environment

Explanation:

i hope you like give brainliest if you do

Answer:

the process of corroding metal, stone, or other materials

corroding: destroy or damage (metal, stone, or other materials) slowly by chemical action.

The process of destroying metal, stone, or other materials.

Explanation:

Answer:

In this picture the ground is now completely covered in vegetation and trees are growing back all along the road and sides of the picture. Then there’s little flowers and grass and bushed all over the place. In the other pictures the ground was bare, with the second and third pictures having bushes and other little vegetation starting to grow. Changes in the Biotic Factors: There are now larger trees, there is grass, flowers, small bushes, and other small vegetation growing. Changes in Abiotic Factors: The ground is no longer dust and ash, The dead trunks and branches are covered in vegetation for the most part and are decomposing.

Explanation:

Brainliest Please?!

Organic molecules produced from spontaneous synthesis or from meteorites

Answer:

B. Speciation has occurred because breeding between the offspring and original populations would not be possible.

Explanation:

Speciation has occurred in the species due to no breeding between the offspring and original populations because the offspring and original species has different number of chromosomes in their DNA. Due to this difference in the chromosome number in the DNA, there is no chance of breeding between offspring and original species. Speciation is the evolutionary process by which populations of organism evolve with the passage of time and become different from the original species.

Answer:

Mendel's law of dominance states that in a heterozygote, one trait will conceal the presence of another trait for the same characteristic. Rather than both alleles contributing to a phenotype, the dominant allele will be expressed exclusively.

Explanation:

Hope this helps:)

Answer: It releases oxygen and heat. The answer is C

Stored inside the match head is another chemical called “potassium chlorate”. When it gets hot, it releases a lot of extra oxygen and heat. This makes the match head burn quickly and strongly. When you put it all together the heat, the fuel, and the oxygen  you get a flame. Matter does not go when something is set on fire. Matter is always the same.  Burning is a chemical process. The flames are caused as a result of a fuel undergoing combustion (burning). (CC BY-SA 2.5; Einar Helland Berger for fire and Walter Siegmund for ash).  

Answer:

Explanation:

heyyyyyyyyyyyyyyyyyyyyyyyyyyyy

how it going long time no talk

Answer:

The answer would be B.

Explanation:

An organ is a group of cells that form tissue which then make up an otgan. A group of Tissues is an Organ and tgat orgab serves a specific function in the body. The group of tissues is the organ, and the filter of waste from the blood is the function.

The correct answer is 13,800 feet.

Explanation:

30 to 40 feet has an area of 30 x 40 = 1200 sq ft

100 to 150 feet has an ares of 15,000 sq ft.

To get to the answer, you simply subtract 1200 from 15,000 to get 13,800.

Hope this helps! :)

Answer:  

The idea of concentrations and gradients within them is important when understanding the movement of substances across cell membranes. The more particles there are in a certain volume, the more concentrated those particles are. A solution with a low solute concentration has a high water concentration, and a high water potential.

Answer:

Digestion

Explanation:

Digestion is the breakdown of large insoluble food molecules into small water-soluble food molecules so that they can be absorbed into the watery blood plasma. In certain organisms, these smaller substances are absorbed through the small intestine into the blood stream

Answer:

do you like food?

Explanation:

Answer:

Mitosis

Explanation:

Mitosis produces new cells, and replaces cells that are old, lost or damaged for a person's body cells.

Answer: B

Explanation: The other answers are talking about similarities among different species.

Answer:

C. ) availability of land for use

Explanation:

Not conserving water would not increase the amount of land available for use

Answer:

The moss would be a pioneer species.

Explanation:

Answer:

absorb heat from the sun

Explanation:

Greenhouse gases are specific type of gases that possess the ability to trap and emit heat/thermal energy in the atmosphere. They are able to do this because of their structure. Examples of greenhouse gases are carbon dioxide (CO2), methane (CH4), chlorofluorocarbon (CFC) etc and are mostly produced via anthropogenic activities.

Greenhouse gases are therefore, produced both artificially (by burning fossil fuels) and naturally and functions to absorb heat from the atmospheric surroundings.

Answer:

absorb heat from the sun

Explanation:

Greenhouse gases absorb heat from the sun.

Answer:

B

Explanation:

If the oldest fossils showed legs and the more recent ones had only flippers, it would show the change over time.

Answer:

I think letter D

Explanation:

Sana maka tulong

Answer:

D) Paramecium

Explanation:

sorry if my answer is wrong

Answer:

Renewable Energy Produces 5 Times More Jobs Than Fossil Fuels.... China Produces Two Wind Turbines Per Hour.

A single wind turbine will power tens of thousands of homes.

Portugal Powered Their Whole Country Using Only Renewable Energy.... Tech Corporations Are Competing To Be Green Energy Leaders.

Explanation: