A committee is considering an action that will have environmental costs.
Which kind of standards can the committee use to decide whether the action
is morally right or wrong?
O A. External
OB. Economic
OC. Profitable
O D. Ethical

Answer:

b

Explanation:

Megafauna refers to large-bodied animals, typically those that weigh over 100 pounds. North America was home to an array of megafauna that roamed the continent during the Ice Age, which lasted from 2.6 million years ago to about 11,700 years ago.

## The Rise of Megafauna in North America

During the late Pliocene Epoch, around 3 million years ago, the formation of the Isthmus of Panama allowed animals to cross from South America to North America. This event, known as the Great American Biotic Interchange, led to the appearance of various species of megafauna in North America. These included mammoths, mastodons, saber-toothed cats, giant beavers, and dire wolves.

## The Role of the Environment

The megafauna of North America evolved to adapt to the harsh environment of the Ice Age. The continent was covered in extensive grasslands, and megafauna grazed on these grasses. The large size of the animals allowed them to store more food in their bodies, which was necessary to survive through the long, cold winters.

However, at the end of the Ice Age, the climate began to warm up, and the grasslands began to shrink. The disappearance of the grasslands meant that the megafauna could no longer find enough food to sustain themselves. Additionally, human populations were growing, and they began hunting megafauna for food and other resources.

## The Fall of Megafauna in North America

The decline of the megafauna in North America was a slow process that began around 13,000 years ago and continued until about 10,000 years ago. Many species of megafauna, such as mammoths and mastodons, went extinct, while others, such as bison and elk, managed to survive.

## Connection to the Current State of the World

The extinction of the megafauna of North America had a profound impact on the ecosystem of the continent. The disappearance of large herbivores like mammoths and mastodons meant that the grasslands were no longer maintained. This led to the growth of forests, which changed the landscape of North America.

The decline of the megafauna in North America serves as an example of how environmental changes and human activities can have a significant impact on ecosystems. Today, we are facing a similar situation with the current climate crisis and the loss of biodiversity. It is essential to understand the past to create a better future for our planet.

Sure, here you go!

The rise and fall of the megafauna of North America can be described in evolutionary terms, considering the interplay between organisms and their environment. Megafauna refers to large-bodied animal species that existed during the Pleistocene epoch, which lasted from about 2.6 million to 11,700 years ago.

During the Pleistocene, North America was home to a diverse range of megafauna, including mammoths, mastodons, giant sloths, saber-toothed cats, and many others. These large animals had evolved over millions of years, adapting to the unique environmental conditions of that time.

The Pleistocene was characterized by frequent climate fluctuations, with repeated glaciations and interglacial periods. These climatic shifts influenced the availability and distribution of resources, such as vegetation and water sources, which in turn affected the megafauna populations. As the environment changed, the megafauna species had to adapt to survive.

Many megafauna species possessed specific adaptations that allowed them to thrive in the Pleistocene environment. For example, mammoths and mastodons had long, curved tusks and specialized teeth for grazing on grasses and other vegetation. These adaptations helped them exploit available food resources efficiently. Other megafauna species developed unique traits, such as the large size and strength of the giant ground sloths or the saber-toothed cats' elongated canine teeth for hunting.

However, around 11,700 years ago, the megafauna of North America underwent a rapid decline and eventual extinction. The exact causes of this extinction event are still debated among scientists, but a combination of factors likely contributed. These factors include climate change, overhunting by human populations, changing vegetation patterns, and the loss of habitat due to expanding ice sheets.

The changing climate played a significant role in altering the environment and disrupting ecosystems. The retreat of glaciers led to changes in vegetation and the availability of resources for the megafauna. Additionally, the arrival of humans in North America during this period introduced a new factor in the ecosystem dynamics. Overhunting by human populations could have put significant pressure on the megafauna, especially when combined with other environmental changes.

Drawing a connection to the current state of the world, the rise and fall of the Pleistocene megafauna serve as a reminder of the vulnerability of species in the face of environmental changes and human activities. Today, we are witnessing another period of rapid environmental change, largely driven by human activities such as climate change, habitat destruction, and overexploitation of resources.

The lessons learned from the extinction of the Pleistocene megafauna highlight the importance of conservation and responsible stewardship of the Earth's ecosystems. Understanding the delicate balance between organisms and their environment can help inform our efforts to mitigate the negative impacts of human activities and preserve biodiversity for future generations. By studying the past, we can strive to make more informed choices to ensure the long-term survival of the diverse species that currently inhabit our planet.

Answer:

B. 17.6%

Explanation:

im not highly sure of my answer so wait on someone else to answer also

Answer:

To develop phenotypic traits by which typically animal or plant males and females will sexually reproduce and have offspring together.

Explanation:

Answer: long time, small force

Answer:

Explanation:

Chloroplasts are specialized organelles found only in plants and some types of algae. These organelles carry out the process of photosynthesis, which turns water, carbon dioxide, and light energy into nutrients from which the plant can obtain energy. There can be over one hundred chloroplasts in certain plant cells.

Chloroplasts are disk-shaped organelles that are surrounded by a double membrane. The outer membrane forms the external surface of the chloroplast and is relatively permeable to small molecules, allowing substances entry into the organelle. The inner membrane lies just beneath the outer membrane and is less permeable to external substances.

Between the outer and inner membrane is a thin intermembrane space that is about 10-20 nanometers wide. The center of the chloroplast that is enclosed by the double membrane is a fluid matrix called the stroma (you can think of this like the cytoplasm of the chloroplast).

Within the stroma, there are many structures called thylakoids, which look like flattened disks. Thylakoids are stacked on top of one another in vascular plants in stacks called grand. Thylakoids have a high concentration of chlorophyll and carotenoids, which are pigments that capture light energy from the sun. The molecule chlorophyll is also what gives plants their green color.

Answer:

I believe it's true.

Answer:

true

Explanation:

viruses are an living organism and appear to be the smallest living organisms compared to any other organisms .

The truth about vegetable oil is option A. Vegetable oils are frequently obtained from a plant that produces another economically important product."

Vegetable oils, often known as vegetable fats, are oils that are derived from seeds or other fruit portions. Vegetable fats are triglyceride combinations, much like animal fats.

Examples of seed oils, or fats from seeds, include soybean oil, grape seed oil, and cocoa butter.

Read more on vegetable oil here:https://brainly.com/question/1381520

#SPJ1

Answer:

the interconnected nature of social categorizations such as race, class, and gender as they apply to a given individual or group, regarded as creating overlapping and interdependent systems of discrimination or disadvantage.

Explanation:

Answer:

No they do not because the traits they have don't depend on their lives its the health they have.

Explanation:

Answer:

It can, because if the animal take example a bear was born with traits of short legs and small claws, he won't be able to run as fast or do as much damage to the prey if it caught up. then the bear will have a small chance of surviving due to the lack of food

Explanation:

Answer:

Chlorophyll traps light energy from the sun.

Explanation:

Answer:

Extrinsic postzygotic isolation.

Explanation:

Extrinsic postzygotic isolation makes a hybrid zygote unable to develop into a viable, fertile adult. This is the case with the hybrid butterflies having intermediate/medium wing patterning/color who are unable to produce viable offspring. The reason behind this change could be ecological or behavioural

The following statements which are true relative to laboratory glassware include the following below:

This is also known as a conical flask or titration flask and it is a type of laboratory flask which is chiefly used for transport, storage, and mixing. It has a tapered shape which makes it unsuitable for a measuring instrument.

The  fluid volume in a pipette should be read from the bottom of the meniscus, not the top of the meniscus so as to avoid error due to parallax which makes the measurement inaccurate.

Read more about Laboratory glassware here https://brainly.com/question/1553692

#SPJ1

Answer:

high in protein i believe.

Explanation:

Answer:

I posted a couple of pictures for you.

Answer:

Technically speaking, over 2 liters of urine (from patients in hospitals who come in after not having urinated for a week), before pressure causes it to rupture.

Explanation:

Why I say technically is because it is rather rare for someone to simply attempt to hold it until it bursts, this is usually a medical case. If you are not urinating and you're retaining urine, it can cause metabolic abnormalities and electrolyte issues, which can lead to long term kidney failure. A generally healthy bladder can hold between 400 - 500 ml comfortably it reaches it's intended capacity.

Answers:

 T =120s

Explanation:

P=15,000

W=1,800,000 J

P=W/T

T=W/P

T=1,800,000 J/15,000W

  =120s

Answer:

D

Explanation:

A punnett square identifies the combination of two genomes. Depending on the specific set of genes, the combinations may be different. It measures probable outcomes by separating into Dominate and Recessive genes, Dominate overpowering recessive and therefore being more common.

Choice A. A - T G - C correctly shows the base pairing rules in DNA.

The base pairing rules in DNA makes reference to a series of rules for which Adenine is always paired with Thymine by two hydrogen bond, while Guanine always pairs with Cytosine by three hydrogen bonds.

Therefore, with this data, we can see that the base pairing rules in DNA is based on the matches between different nucleotides in DNA, which depends on the chemical interaction of their nitrogen bases.

Learn more about the base pairing rules here:

https://brainly.com/question/10444320

#SPJ1

Answer:

Explanation:

When a meal containing fried fish and toast bread is consumed, it goes through a series of processes in the digestive system of a human. Here's a general description of how the components are processed:

1. Mouth: The process of digestion begins in the mouth. Chewing breaks down the toast bread and fish into smaller pieces, while saliva mixes with the food to start the breakdown of carbohydrates.

2. Esophagus: The chewed food, now called a bolus, is swallowed and travels down the esophagus through peristaltic contractions. The esophagus carries the food to the stomach.

3. Stomach: The stomach is responsible for further mechanical and chemical digestion. It mixes the food with stomach acid and digestive enzymes to break down proteins. The fried fish is broken down into smaller pieces through mechanical churning.

4. Small Intestine: The partially digested food leaves the stomach and enters the small intestine. Here, bile from the liver and enzymes from the pancreas break down fats, while other enzymes continue the breakdown of proteins and carbohydrates. Nutrient absorption occurs through the walls of the small intestine and is facilitated by small finger-like projections called villi.

5. Large Intestine: Any remaining undigested food, as well as water and electrolytes, pass into the large intestine. The large intestine absorbs water and electrolytes while forming waste material known as feces.

6. Rectum and Anus: The feces are stored in the rectum until elimination through the anus occurs during a bowel movement.

Throughout this process, various digestive enzymes and gastric juices are secreted at different stages to facilitate the breakdown and absorption of nutrients. The fried fish and toast bread are broken down into smaller molecules, such as proteins, carbohydrates, and fats, which are then absorbed into the bloodstream to provide energy and nourishment for the body.

These phases are prophase, prometaphase, and metaphase,  Cytokinesis is the final physical cell division and is considered the sixth phase of mitosis.

Cytokinesis begins in the phase of cell division. and ends in telophase, extending completion as the next interphase begins. The first obvious change of cytokinesis in an animal cell is the sudden aspect of a pucker, or cleavage furrow, on the cell surface.

Mitosis and each of the two meiotic divisions result in two unrelated nuclei contained within a single cell. Cytokinesis performs a crucial process to separate the cell in half and ensure that one nucleus ends up in each daughter cell.

So we can conclude that Cytokinesis, the division of the cytoplasm to form two new cells, overhangs with the final stages of mitosis.

Learn more about cytokinesis here: https://brainly.com/question/314066

#SPJ1

Answer: The main reason for the high concentration of reserves in this part of the world which is the middle east that covers bout 4% of earth's total land area but possess about 48% of the world's known oil reserves is due to GEOLOGICAL PROCESSES. Hope this answer helps.

Answer:

My personal responsibility to the environment, as cataloged in the Brundtland report, is sustainability, I mean, ensuring that future generations will be able to enjoy the same quality and quantity of resources that I can have at this time, to I plan to make efficient use of services such as drinking water and electricity, make a correct separation at the source of solid waste so that the reusable material can be used and not cause unnecessary pressure on the earth's mantle, on the other hand, make a more continuous use of reusable or biodegradable material, in order not to increase pollution by waste that usually has as its final destination, in many cases, water sources such as the oceans, as well as reduce my consumption and that of my family of meat products, and products with chlorofluorocarbon gases, thus reducing the amount of gases that are deployed to the atmosphere and could destroy it.

Explanation:

The environmental commitment is something extremely important to allow there to be a true environmental sustainability beyond an advertising attractor, for this it is required that each person identify activities in which they can reduce the generation of pollutants, either through solid waste, dumping or gases. that affect the ozone layer such as methane or chlorofluorocarbon gases, these activities can regularly be carried out from our own homes and, although they may involve additional work, they will allow future generations to enjoy an environment with a quality similar to or better than the one we have currently.

The cross would result in a combination of progeny with various height and flower colour genotypes and phenotypes.

It is a cross that combines two sets of characters' opposing qualities. For instance, when plants with only yellow-round seeds are crossed with plants with wrinkled green seeds (both homozygous), only plants with yellow-round seeds are visible in the F1 generation. But, in the F2 generation, four other sorts of pairings are detected.

The F1 generation offspring of parents that only differ in one attribute are referred to as monohybrid crosses. A dihybrid cross occurs when two F1 generation children with different characteristics are crossed.

To know more about phenotypes visit:-

https://brainly.com/question/20730322

#SPJ1

The generation time of the bacteria in the following culture is approximately 3.01  hours.

To determine the generation time of bacteria, we can use the formula:

Generation time (t) = (Time elapsed (T) / Number of generations (n))

In this case, we have a time difference of 10 hours between the two samples.

To calculate the number of generations, we can use the formula:

Number of generations (n) = log(N₂ / N₁) / log(2)

Where N₂ is the final cell count (10,000 cells/ml) and N₁ is the initial cell count (1,000 cells/ml).

Plugging in the values, we get:

Number of generations (n) = log(10,000 / 1,000) / log(2) ≈ 3.32

Now, we can calculate the generation time:

Generation time (t) = Time elapsed (T) / Number of generations (n)

Generation time (t) = 10 hours / 3.32 ≈ 3.01 hours

Therefore, the generation time of the bacteria in this culture is approximately 3.01 hours.

For more such questions on Bacteria:

https://brainly.com/question/8695285

#SPJ8

Answer:

If the molecule of an element contains 1 atom it's called a monoatomic molecule. E.g. Na, He, etc. If the molecule of an element contains 2 atoms it's called a diatomic molecule.

Answer:

Sorry, not funny.

Answer:

don't get it

Explanation:

have a nice day!!! :)

Brainiest is appreciated