Directions: Select the correct diagram.
The diagrams below represent the fossils of shellfish in four hypothetical cross sections of a canyon. The top layers are the
youngest layers, and the bottom layers are the oldest
Which cross section could be used as evidence that, over time, a circular shellfish descended from a hexagonal shellfish?
1
2
3

Answer: 21,000x24= 504,000 kilometers per hour.

Explanation: Hope that helped you.

Answer:

⁶

Explanation:

join on zoom meeting now I'd 4989249097 and password MsS8pt join now for fun only girls who interested in sex

Answer:

The water cycle is an extremely important process because it enables the availability of water for all living organisms and regulates weather patterns on our planet. If water didn't naturally recycle itself, we would run out of clean water, which is essential to life.

Explanation:

Brainliest please?

Answer Although the amino acid sequence (also known as the protein's primary structure) does not change, the protein's shape may change so much that it becomes dysfunctional, in which case the protein is considered denatured.

Explanation:

Under resting conditions, the ATP-PCr system plays the role of replenishing cellular ATP reserves (option c).

The ATP-PCr system, also known as the phosphagen system, is one of the body's energy systems that produces ATP (adenosine triphosphate), the primary energy source for most cellular processes. This system is most active during short, high-intensity exercises such as sprinting or weightlifting.

During rest, the body's energy demands are lower and the ATP-PCr system is not as active as it is during exercise. However, it still plays an important role in replenishing the body's ATP reserves to prepare for future physical activity.

Therefore, the correct answer to this question is option c, replenishing cellular ATP reserves.

Learn more about phosphagen system here:

https://brainly.com/question/15328745#

#SPJ11

Light-dependent reactions, also known as the light reactions, are the first stage of photosynthesis. They occur in the thylakoid membranes of chloroplasts and convert light energy into chemical energy in the form of ATP and NADPH, which are used in the second stage of photosynthesis, the Calvin cycle.

The following are the steps that occur during light-dependent reactions:

1. Light absorption: Chlorophyll and other pigments in the thylakoid membrane absorb light energy and transfer it to reaction center chlorophyll a molecules.

2. Electron transport chain: The excited electrons from the reaction center chlorophyll a are passed down an electron transport chain, which generates a proton gradient across the thylakoid membrane.

3. ATP synthesis: The proton gradient drives the synthesis of ATP by the enzyme ATP synthase.

4. Splitting of water: Water molecules are split by the enzyme complex called photosystem II, releasing oxygen gas and protons.

5. Formation of NADPH: The electrons from photosystem I are used to reduce NADP+ to NADPH, a high-energy electron carrier.

Overall, the light-dependent reactions generate ATP and NADPH, and release oxygen as a byproduct. These energy-rich molecules are then used in the second stage of photosynthesis, the Calvin cycle, to produce sugars and other organic molecules.

To know more about  thylakoid membranes click here:

brainly.com/question/9122983

#SPJ4

Answer:

Hormones are involved in the osmoregulation of kidneys by regulating the levels of water.

Such as if the water level is excess in the body fluids, the hormone will help the kidneys to filter as much water as they can from the glomerular capillaries. So, As a result dilute urine is formed.

Now, If the water level is very low in the body fluids, the hormone will help the kidneys to absorb most water and filter less water from the glomerular capillaries. As a result the urine formed is concentrated.

In Chapter 3, "Coordination and Control" You will come to know that the hormone is ADH (Anti-diuretic hormone) called vasopressin.

Answer:

Kidney plays a very important role in Osmoregulation by regulating the amount of water reabsorbed.Anti Diuretic harmone produced by pituitary gland plays a key role.Kidney regulate osmotic pressure of a mammals blood through extensive filtration and purification in a process known as osmoregulation.

The loop of Henle establishes a salt gradient in the medulla, anti diuretic harmine regulates the level of water reabsorption in the collecting duct.

Harmones like ADH helps in reabsorption of water.

Hope this helps...

Good luck on your assignment...

Some examples of structural adaptations well suited for deserts are:

A plant that is well-suited to the desert environment is likely to have some of the following structural adaptations:

Reduced Leaf Surface Area: Desert plants often have small or spiky leaves to minimize water loss through evaporation. This adaptation helps reduce the surface area exposed to the hot and dry conditions, reducing water loss through transpiration. Examples include desert shrubs and some grasses.

Deep Root Systems: Desert plants often have deep root systems that can reach groundwater sources. These extensive root structures allow the plants to access water from deep underground, where moisture may be available even during prolonged dry spells. Desert shrubs like mesquite and desert trees like the Joshua tree exhibit deep root systems.

Waxy or Thick Cuticles: Desert plants may have waxy or thick cuticles covering their leaves and stems. This adaptation helps to reduce water loss through evaporation and protects the plant from the intense heat and dryness of the desert environment. Plants such as desert lavender and creosote bush exhibit this adaptation.

Learn more about deserts at:

https://brainly.com/question/1193694

#SPJ1

The conducting zone of the respiratory system is a series of interconnected cavities and tubes outside and inside the lungs that filter, warm, humidify, and direct air to the lungs.

The respiratory system functionally he can be divided into two zones. The conducting zone (nose to bronchioles) provides the conduction pathway for inspired gases and the respiratory zone (alveolar ducts to alveoli) where gas exchange takes place.

The conducting zone consists of all structures that allow airways to enter and exit the lungs.

Nasal cavity, pharynx, trachea, bronchi, and most bronchioli. The conducting zone, which includes everything from the nose to the smallest bronchiole, allows air to enter and exit the lungs. The respiratory zone includes respiratory bronchioles and alveoli, which move breathing gases, oxygen and carbon dioxide, into and out of the blood.

For more information on conducting zone , visit :

https://brainly.com/question/13210491

#SPJ4

Answer:

Artificial selection

Explanation:

A substance that is recognized as foreign or non-self is antigens; option 4

The immune system is a system in the body whose primary function is to defend the body against attack or invasion from foreign agents which are more likely than not to cause diseases.

In some instances though, some foreign agents recognized by the body may not be disease-causing agents.

The components of the immune system include the following:

Antibodies are proteins that protect you when foreign agents enters your body. Antibodies usually bind to antigens which are foreign substances.

Learn more about immune system at: https://brainly.com/question/6612564

#SPJ1

Answer: True

Explanation: heat, energy that is transferred from one body to another as the result of a difference in temperature. If two bodies at different temperatures are brought together, energy is transferred—i.e., heat flows—from the hotter body to the colder.

Answer:

1 Carbon dioxide.

2 Methane.

3 Nitrous Oxide.

4 Fluorocarbons.

Explanation:

Answer:

All of the body's internal organs and systems rely on each other to function in harmony and this is what enables the body to function

Explanation:

Obtaining human cells for research or commercial purposes without the informed consent of the individual

Patient autonomy is the term used to describe a person's ability to make choices regarding their own body and medical care. By suggesting that individuals should not have complete control over their cells and should not be the exclusive recipients of any revenues generated from them, Lengauer's analogy undercuts patient autonomy.

The ownership of human tissue is a topic of continuing discussion and is governed by several legal systems. Individuals typically have legal rights over their own cells and tissues. In Lengauer's comparison, the ownership rights of individuals over their cells appear to be disregarded.

Learn more about ethics:https://brainly.com/question/26273329

#SPJ4

Answer:

Mitochondria

Explanation:

Because mitochondria is the power house of the cell, hence it  provides energy.

Folate is vital for DNA synthesis, red blood cell formation, amino acid metabolism, and neural tube development, making it an important water-soluble vitamin in cellular metabolism.

Folate, or vitamin B9, is involved in important functions within cellular metabolism. It plays a crucial role in DNA synthesis and repair, providing the necessary methyl group for nucleotide production.

Folate is essential for the formation of red blood cells, contributing to heme production. It also participates in the metabolism of amino acids, aiding in the conversion of specific amino acids and other important molecules.

Additionally, folate is crucial for neural tube development in embryos, playing a role in the formation and closure of the neural tube.

To know more about Folate refer to-

https://brainly.com/question/31833830

#SPJ11

Currently, the most widely used potent teratogen is prescribed Thalidomide.

Thalidomide is a medication that was prescribed in the late 1950s and early 1960s as a sedative and anti-nausea drug. However, it was later discovered to be a potent teratogen, meaning it causes severe birth defects when taken during pregnancy. The use of Thalidomide during pregnancy led to a significant increase in cases of limb malformations and other developmental abnormalities in newborns. Despite its devastating effects, Thalidomide is still used today, but under strict regulations and with rigorous monitoring to prevent its administration to pregnant women.

In summary, Thalidomide is currently recognized as the most widely used potent teratogen, as it has been associated with severe birth defects when taken during pregnancy. Strict guidelines and precautions are in place to ensure its safe use and prevent its administration to pregnant women.

To know more about teratogen click here:

https://brainly.com/question/33454670

#SPJ11

Answer:

Viruses are often considered non-living because outside of a living cell, they do not exhibit the characteristics of living organisms: they are basically like crystals. But within a living organism, they become activated and are able to carry out life's activities like replication (a form of reproduction).

Answer:

Viruses are not made up out of cells they cant keep them selves in a stable state they dont grow and they dont make there own energy. So they are considered non-living.

Explanation:

Cells are living things in the body a virus is what the cells are trying to defeat and because there are no cells in viruses the cells in our body is what fights off the virus cause they are alive and processing in our body.

Facilitated diffusion differs from active transport in that facilitated diffusion does n require the expenditure of energy while active transport does.
Facilitated diffusion is a type of passive transport, meaning that it does not require the input of energy to occur. Instead, facilitated diffusion relies on the natural movement of molecules from areas of higher concentration to areas of lower concentration, also known as a concentration gradient. In contrast, active transport requires the expenditure of energy in order to move molecules against their concentration gradient, from areas of lower concentration to areas of higher concentration.
Overall, the main difference between facilitated diffusion and active transport is the requirement of energy expenditure, with facilitated diffusion being a passive process and active transport being an active process.

Read more about diffusion here:https://brainly.com/question/7161064

#SPJ11

The small but palpable projection of bone on the dorsal aspect of the distal radius that helps guide the direction of the tendons of several wrist and thumb extensor muscles is the Lister's tubercle. Lister's tubercle is found on the posterior aspect of the distal radius and is named after Scottish surgeon and surgical pioneer Joseph Lister.

It serves as the attachment point for several muscles in the forearm and wrist. The function of the Lister's tubercle is to serve as an insertion point for extensor carpi radialis longus and extensor carpi radialis brevis, both of which play a critical role in the extension of the wrist joint.

Additionally, it acts as a pulley for the abductor pollicis longus muscle and a guide for the extensor pollicis longus muscle. The extensor pollicis longus muscle is responsible for extending the thumb, and Lister's tubercle assists in directing its tendon to its insertion point.

Lister's tubercle plays an important role in wrist biomechanics, allowing for more efficient movement and greater mechanical advantage for the muscles that attach to it. It is also used as a landmark for physicians when evaluating the wrist and diagnosing injuries or conditions.

Overall, Lister's tubercle is a small but important anatomical feature with a significant impact on wrist and hand function.

To know more about bone visit:

https://brainly.com/question/31713000

#SPJ11

Answer:

this is my answer

Explanation:

hope it helps,godbless

Answer:

1. The digestive system of a flatworm is comprised of a single big solitary tube. Food is taken in from one end of the system, digested, and nutrients are absorbed within, while waste is ejected at the other end. Mechanical digestion takes place in the gizzard.

In humans, however, food goes significantly further through the convoluted tubules after ingestion, and food remains in the stomach for a longer period of time. Food is mechanically digested in the mouth, then transferred through the esophagus, stomach, small intestine, and large intestine, and waste leaves through the anus.

2. Producers, primary consumers, secondary consumers, and tertiary consumers.

3.   CAPITALISM: Among the most common criticisms of capitalism claim that it is intrinsically exploitative, alienating, unstable, and unsustainable, and that it causes vast economic inequalities, commodifies individuals, is anti-democratic and leads to the degradation of human rights.

HAZARDOUS WASTE: Because it pollutes every component of the environment, including air, water, and land, hazardous waste might be considered a crime by our civilization. This has the potential to cause a major issue. What it does is affect the natural lifestyle of many species that comprise the ecosystem, perhaps resulting in a tragedy for all life on Earth.

Answer:

Explanation:

1. The crisis the people in cape town were facing was a major drought that affected animals, plants, and people.

2. The crisis was caused by 3 years of barely any rainfall and the people using the same amount of water they had been using for a while. Naturally, things caught up and the people were using to much water without enough to supply.

3. The government and local authorities started setting laws to restrict water usage. So businesses and citizens had to restrict water usage very quickly. At one point they said they would run out of water completely, that made reality set in for people. People started setting out separate buckets and jars to collect water for drinking, bathing, and watering their plants for food. Everyone stopped using their baths.

People removed eucalyptus trees so water would start running down the dams.

Businesses had to manage the water even more carefully, they had to make sure that how much water they were using was under the limit but still accommodating either the plants or the people or the animals.

4. The crisis was ultimately resolved when the rain came again and people kept their same restrictions for a little bit to catch up and then they started getting more water gradually but still making sure they weren't using too much.

5. Now that the crisis is over, I think it will have have a lasting impact on the people of Cape Town. I think mentally it made them more aware of what could happen and made them more precarious. I think if there was less rainfall for a bit again they would start going into preparation mode, but this time, know more about how to reverse it and live with it. Like in the video, it showed the hotels, people, and businesses have started monitoring the water usage again and installing things to catch extra water and making sure there is a backup water containers to avoid this in the future. I also think because of all the restrictions it will affect the land for quite a while, you can't just replant trees and vegetables, and regrow all the foods businesses produced with a snap of a finger, it takes time, seasons, months, so consequently as the land is affected so are the people.

I think the crisis affected the people's mindset by changing their outlook on water and showed them how to be more frugal with water.

(you can change this up and put it in your own words if you want, idk, I hope this is good enough :) )

Answer: Weather, food competition

The variables that would affect the rate of the population whether it is increase or decrease are as follows;

A Population may be defined as a group of individuals belonging to the same species living in the same area at a definite given time.

Environmental conditions vary from place to place which directly affects the rate of the population by influencing the relative fitness of organisms. The competition also inhibits the fitness and survivability of organisms.

It may be intraspecific and interspecific. While food and space together lead to resources that are available for the organisms in order to reproduce themselves under natural conditions.

Therefore, the variables that would affect the rate of the population whether it is increase or decrease are well described above.

To learn more about Population, refer to the link:

https://brainly.com/question/1437549

#SPJ2

Trans fatty acids are now considered more atherogenic than saturated fatty acids because they lower HDL cholesterol(good cholesterol) and they raise LDL cholesterol( bad cholesterol).

Trans fatty acids are thought to be more atherogenic than saturated fatty acids because they diminish high-density lipoproteins (HDL) while increasing low-density lipoproteins (LDL) to a level comparable to that of saturated fats.

Because a healthy amount of HDL cholesterol may prevent heart attack and stroke, it is sometimes referred to as the "good" cholesterol. LDL (bad) cholesterol is transported by HDL from the arteries back to the liver, where it is metabolized and eliminated from the body.

To know more about Trans fatty acids and saturated fatty acids, visit: https://brainly.com/question/10509593

#SPJ1

Answer:

Blood vessels in the dermis dilate in the hot days or during exercise to cool off the body by sweating. During cold, the same blood vessels will constrict to keep the body warm and reduce the heat loss.  

Explanation: