Please someone help me with this thank you

Answer:

True

Explanation:

The Long and Diffusion Path can Help the exchange surface to increased rapidly in a long diffusion path. in other words it grows faster.

If the diffusion path is long, the effectiveness of an exchange surface is improved is false.

Diffusion is defined as the net movement from an area of higher concentration to an area of lower concentration caused on by the dispersal of any material's in-solution or gas-particle particles.

Diffusion is the process by which dissolved chemicals enter or exit cells.

the three parameters that affect diffusion are

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Answer:

It's a non-polar covalent bond.

Explanation:

Non-polar means they do not interact with water. Carbon dioxide and Oxygen bonded together by sharing electrons equally.

Answer:

It has a pH of 7, so your answer is therefore B.) 7.

Answer:

7

Explanation:

Answer:

it will disolve

Explanation:

In a typical animal, mitosis produces two identical daughter cells, while meiosis produces four unique daughter cells.

Meiosis is a type of cell division that involves the parent chromosome being halved and then divided again to form four unique daughter cells which have only one copy of chromosome from the parent.

This process occurs in sex cells such as the sperm and egg cells.

Mitosis is also a type of cell division but occurs with the parent cells to form two identical daughter cells.

This type of cell division have produces the same number of chromosomes the parents have and occurs in cells of the body which undergoes growth or during replacement of worn-out tissues.

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Answer:

What are the two characteristics of Coelenterata?

Characteristics. All coelenterates are aquatic, mostly marine. The bodyform is radially symmetrical, diploblastic and does not have a coelom. The body has a single opening, the hypostome, surrounded by sensory tentacles equipped with either nematocysts or colloblasts to capture mostly planktonic prey.

What are the two characteristics of Nematoda?

Their body is bilaterally symmetrical and triploblastic. They are cylindrical in shape. They exhibit tissue level organization. Their body has a cavity or pseudocoelom.

Explanation:

Answer:

total # of species

Explanation:

species richness is a number of different species represented in the ecological community landscape or region.

Answer: Species richness is the number of different species represented in an ecological community, landscape or region.

Answer:

B is the answer

Explanation:

continual daylight

In the given image it is showing long days. The correct option is A.

The Earth orbits the sun once every 365 days and rotates once every 24 hours on its axis.

Day and night are caused by the Earth rotating on its axis rather than by its orbit around the sun.

The term "one day" refers to the time it takes the Earth to rotate once on its axis and includes both day and night time.

A day is roughly the time it takes for the Earth to rotate or for other large astronomical objects to rotate.

The number of daylight hours we have depends on our latitude and how the Earth orbits the sun.

The axis of rotation of the Earth is tilted relative to its orbital plane and always points in the same direction means toward the North Star.

Thus, the correct option is A.

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Answer:

poor farming practices

Explanation:

Answer:

When the oxygen level is low in a Purple Sea Urchin, muscles associated with Aristotle's Lantern pump fluid through its body (through the canals). Carbon dioxide (waste/not good stuff) is released through the anus. The Purple Sea Urchin obtains oxygen through diffusion only (the diffusion of oxygen into the organism).

Explanation:

Brainliest please

Sea urchins breathe through their feet tubes because of nonavailability of lungs and gills in them.  When the oxygen level is low at that time, the sea urchins pump fluids through their anus.

Sea urchins are able to survive in sea because of the tiny hair called spines  present on their body as  water currents are created because of the hair and waste gets washed away with the water currents created.

When the carbon dioxide level gets increased in the sea at that time the skeletal structures of the marine animals are also affected.

The shells made up of calcium also gets affected because of the increasing acidity in the water. Carbon dioxide not so good is released through the anus and  this totally affects the normal regulation of the creature.

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Answer:

A.

Explanation:

This is when a female reproduces alone

Answer:

Sickle cell anemia is one of a group of disorders known as sickle cell disease. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels.

Explanation:

Based on "Sickle cell anemia is an inherited red blood cell disorder" taken from the text, I would say the correct answer is C, because it says "an inherited disorder" and describes Sickle cell anemia.

Hope this helps! :D

Answer:

Basically biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine, and the works of Aristotle and Galen in the ancient Greco-Roman world. This ancient work was further developed in the Middle Ages by Muslim physicians and scholars such as Avicenna. During the European Renaissance and early modern period, biological thought was revolutionized in Europe by a renewed interest in empiricism and the discovery of many novel organisms

Explanation:

Answer:

Basically biology traces the study of the living world from ancient to modern times. Although the concept of biology as a single coherent field arose in the 19th century, the biological sciences emerged from traditions of medicine and natural history reaching back to Ayurveda, ancient Egyptian medicine, and the works of Aristotle and Galen in the ancient Greco-Roman world. This ancient work was further developed in the Middle Ages by Muslim physicians and scholars such as Avicenna. During the European Renaissance and early modern period, biological thought was revolutionized in Europe by a renewed interest in empiricism and the discovery of many novel organisms

The cell cycle, or cell-division cycle, is the series of events that take place in a cell that cause it to divide into two daughter cells.

this is your answer

Answer:

Feathers.

High metabolism.

A four-chambered heart.

A beak with no teeth.

A lightweight but strong skeleton.

Production of hard-shelled eggs.

Answer:

Nucleic acids: Stores and transfers info.

Carbohydrates; Store energy, provide fuel, and build structure in body, main source of energy, structure of plant cell wall.

Lipid: Insulator and stores fat and energy.

Protein: Provide structural support,transport, enzymes, movement, defense.

Answer:

glenoid labrum.

Explanation:

The glenoid fossa is rimmed by the fibrocartilaginous

Answer:both would be an unshaded square

Explanation:because if they both have the same thing and it doesn’t say either are shaded then they aren’t shaded

Answer:

The reason why is because in the process of reproduction; there are some mistakes in DNA replication (out of billions of base pairs about 120,000 mistakes). This is what brings us so much variation in organisms.

Answer:

Cellular respiration

Answer:

Cellular respiration

Explanation:

because it needs it to release energy from food for use by cells.

Answer:

Respuesta: hola ami me parece que ya lo hiciste pero te dejo ejemplos:

Explicación: 1.Venezuela

2. Sanclemente

3. Marroquin    

me das corona plis chau

Explanation:

Answer:

Describe the appearance of the vacuole in a well-watered plant. What effect would this have on the cell wall of the plant? The vacuole would expand and take up most of the space inside the cell. This would create internal pressure on the cell wall.

Explanation:

Answer:

vena cava: deoxygenated

it carries deoxgenated blood from the body back to heart.

aorta: oxygenated

Carries oxygenated blood from the heart around the body.

pulmonary artery: deoxygenated

Carries deoxygenated blood from the heart to the lungs.

pulmonary vein: oxygenated

Carries oxygenated blood from the lungs to the heart.

left atrium: oxygenated

receives blood full of oxygen from the lungs and then empties the blood into the left ventricle.

that's all I found from the question

Well you see theres this guy named MrBeast thats taking little kids money and is having one of his slaves eat a water bottle for every dollar

Answer:

Well recently Team Seas has come out for every dollar donated I think it's 1 pound of trash so by donating would be one.

The second would be volunteering to help clean up for example a beach.

For more lasting impact would be to have a machine that collects the trash at where the rivers and streams meet the ocean this will lead to less trash in the ocean. There is a great example of this machine by Mark Rober gives a detailed explanation.

Answer:

In plants, photosynthesis takes place in chloroplasts, which contain the chlorophyll. Chloroplasts are surrounded by a double membrane and contain a third inner membrane, called the thylakoid membrane, that forms long folds within the organelle.

Explanation:

Answer:  Potassium channels allow K+ ions to easily diffuse through their pores while effectively preventing smaller Na+ ions from permeation. ... This selection process occurs at the narrow selectivity filter that contains structurally identified K+ binding-sites

Explanation:

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Answer:

it depends on the severity of the flooding, if its extreme id say build canals

Explanation:

Active transport occurs against the electrochemical gradient. It needs energy to move molecules from the lower concentration side to the higher concentration side. The mode of transport is active transport.

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There are three main different types of transport across the membrane

Active transport is the transport of molecules that move against the electrochemical gradient, so it does need energy to happen.

Molecules move from the lower concentration side to the higher concentration side of the membrane.

Carrier proteins are in charge of active transport. The needed energy might proceed from the ATP molecules or the membrane's electric potential.

In the exposed example, a scientist wants to determine how substance L enters a cells in a culture.

Table 1. Rate of entry of substance L into mammalian cells in culture

External concentration of substance(mM)      Rate of entry of substance L

                     10                                                                     5%

                     20                                                                    25%

                     30                                                                    45%

                     40                                                                    65%

                     50                                                                     80%

                     60                                                                     90%

                     70                                                                      95%

                      80                                                                    100%

                      90                                                                    100%

                      100                                                                   100%

Now, we need to identify the most likely mode of transport across the membrane for substance L, and explain how information provided helps determine the most likely mode of transport.

We know that the intracellular concentration is 120mM.

As we can see, this concentration exceeds all of the culture media concentrations. Yet, the substance keep moving into the cell.

As the concentration inside the cell is always higher than the concentration outside, we can assume that this is not passive transport because the molecule transport is going against its concentration gradient.

Hence, the remaining option is active transport. And as said before, we can see it because the substance keeps crossing the membrane toward the cell interior despite its concentration being higher in the interior of the cell than in the exterior.

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Answer:

Xarwdef

Explanation: