Your first assignment is to find an article talking about a scientific topic. This article can be from a source of your choosing (such as a newspaper or an internet article). You will need to include the article with your assignment. Once you have your article, you will write a short paper identifying two inferences made in this article and the facts the writer used to make these inferences. Then, elaborate on whether the two inferences made by the author are valid or more opinion-based. Be sure to include your reasoning of why you came to this conclusion. Some examples of where you can find articles about scientific topics are:

The answer is D. The insects are the same species.

The insects are the same species best describes this insect population.

The fact that the two insect groups were able to reproduce and produce offspring that could also breed indicates that they are not experiencing reproductive isolation. Reproductive isolation occurs when two populations of organisms can no longer interbreed due to genetic or behavioral differences.

Since the two insect groups can interbreed and produce viable offspring, it suggests that they are not different enough genetically to be considered different species.

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Answer:

I expect to find

Explanation:

A=30% C= 20% T = 36% G=14%

Answer:

DNA mutations or Chromosomal mutations are also called chromosomal aberrations, chromosomal abnormality, or chromosomal disorders, all indicating a possible alteration in the morphology and structure of the chromosome.

DNA mutations lead to abnormalities in the function of the cell and organism, as chromosomal or DNA mutations can result in abnormal gene numbers or positions.

These are known to cause different genetic diseases that can be hereditary and are transferred from one generation to another.

These mutations, however, do not always affect the functioning of the cell as some mutations might affect regions of chromosomes that do not make up the genetic makeup of the organism.

Even though gene mutations are usually more severe than chromosomal mutations, some chromosomal mutations might result in gene mutations.

Answer:

Vegetative propagation

Explanation:

Vegetative propagation does not require seeds or spores. Instead, offspring grow from a part of the parent plant.

Answer:

below

Explanation:

Waste disposal; We need to recognize the benefits of nature and start preserving nature.

Answer:

Antibiotics save lives but any time antibiotics are used, they can cause side effects and lead to antibiotic resistance.

Since the 1940s, antibiotics have greatly reduced illness and death from infectious diseases. However, as we use the drugs, germs develop defense strategies against them. This makes the drugs less effective.

Answer:

So you can be more active and do different things that need energy

Explanation:

Having energy is an important part of daily life. Without energy, the human body would not be able to go throughout the day without being tired and without their muscles and bones hurting.

Answer:

La espluma de poliuretano (espluma PU) ye un material plásticu porosu formáu por un agregamientu de burbuyes, conocíu tamién polos nomes coloquiales de gomaespuma n'España o gomapluma en dellos países suramericanos. Contienen sustances d'escasu poder canceríxenu que si representen dalgún peligru, namái sería tres esposiciones intenses y teniendo contautu direutu.Tamién ye denomináu Poliuretano proxectáu, por cuenta de la forma na que se suel aplicar sobre superficies. Explanation:

Answer:

Introduction

Does cell cycle control matter? If you ask an oncologist – a doctor who treats cancer patients – she or he will likely answer with a resounding yes.

Cancer is basically a disease of uncontrolled cell division. Its development and progression are usually linked to a series of changes in the activity of cell cycle regulators. For example, inhibitors of the cell cycle keep cells from dividing when conditions aren’t right, so too little activity of these inhibitors can promote cancer. Similarly, positive regulators of cell division can lead to cancer if they are too active. In most cases, these changes in activity are due to mutations in the genes that encode cell cycle regulator proteins.

Here, we’ll look in more detail at what's wrong with cancer cells. We'll also see how abnormal forms of cell cycle regulators can contribute to cancer.

What’s wrong with cancer cells?

Cancer cells behave differently than normal cells in the body. Many of these differences are related to cell division behavior.

For example, cancer cells can multiply in culture (outside of the body in a dish) without any growth factors, or growth-stimulating protein signals, being added. This is different from normal cells, which need growth factors to grow in culture.

Cancer cells may make their own growth factors, have growth factor pathways that are stuck in the "on" position, or, in the context of the body, even trick neighboring cells into producing growth factors to sustain them^1  

1

start superscript, 1, end superscript.

Diagram showing different responses of normal and cancer cells to growth factor presence or absence.

- Normal cells in a culture dish will not divide without the addition of growth factors.

- Cancer cells in a culture dish will divide whether growth factors are provided or not.

Diagram showing different responses of normal and cancer cells to growth factor presence or absence.

Normal cells in a culture dish will not divide without the addition of growth factors.

Cancer cells in a culture dish will divide whether growth factors are provided or not.

Cancer cells also ignore signals that should cause them to stop dividing. For instance, when normal cells grown in a dish are crowded by neighbors on all sides, they will no longer divide. Cancer cells, in contrast, keep dividing and pile on top of each other in lumpy layers.

The environment in a dish is different from the environment in the human body, but scientists think that the loss of contact inhibition in plate-grown cancer cells reflects the loss of a mechanism that normally maintains tissue balance in the body^2  

2

squared.

Another hallmark of cancer cells is their "replicative immortality," a fancy term for the fact that they can divide many more times than a normal cell of the body. In general, human cells can go through only about 40-60 rounds of division before they lose the capacity to divide, "grow old," and eventually die^3  

3

cubed.

Cancer cells can divide many more times than this, largely because they express an enzyme called telomerase, which reverses the wearing down of chromosome ends that normally happens during each cell division^4  

4

start superscript, 4, end superscript.

Cancer cells are also different from normal cells in other ways that aren’t directly cell cycle-related. These differences help them grow, divide, and form tumors. For instance, cancer cells gain the ability to migrate to other parts of the body, a process called metastasis, and to promote growth of new blood vessels, a process called angiogenesis (which gives tumor cells a source of oxygen and nutrients). Cancer cells also fail to undergo programmed cell death, or apoptosis, under conditions when normal cells would (e.g., due to DNA damage). In addition, emerging research shows that cancer cells may undergo metabolic changes that support increased cell growth and division^5  

5

start superscript, 5, end superscript.

Diagram showing different responses of normal and cancer cells to conditions that would typically trigger apoptosis.

- A normal cell with unfixable DNA damaged will undergo apoptosis.

- A cancer cell with unfixable DNA damage will not undergo apoptosis and will instead continue dividing.

Explanation:

Answer:

Coleoptera is correct! Hope this helps.

The energy from sunlight is directly used by the plant to :

=》split water molecules,

splitting of water molecules during photosynthesis is done by solar energy absorbed through chlorophyll.

false because there are millions of stars in the solar system so they can't be big if that many are in it :)

Answer:

False

Explanation:

A solar system is composed of a star and planets.  The star is what makes a solar system a solar system, but a solar system is a star and other planets.

Answer:

The dwindling zebra population has led to the decline of the predator lion and cheetah populations.

Explanation:

The decrease in zebra population also decreases the population of the predator lion and cheetah because both predators depends on zebra for their survival. Both predators used zebra as a source of food for their growth and survival so if there is high availability of zebra so the population of Lions and cheetah also increases while on the other hand, if there is decrease in zebra population, the population of lion and cheetah also decreases because of less available food for them.

Answer:

B) The dwindling zebra population has led to the decline of the predator lion and cheetah populations.

Explanation:

2021 edge :)

Answer:

Nondisjunction Produces Abnormal Gametes. If nondisjunction occurs during anaphase I of meiosis I, this means that at least one pair of homologous chromosomes did not separate. The end result is two cells that have an extra copy of one chromosome and two cells that are missing that chromosome. Click to see full answer.

Explanation:

Answer:

10. chlorophyll

11. There are two main stages of photosynthesis: the light-dependent reactions and the Calvin cycle.

12. Nutrition is necessary for the growth of new cells and the replacement or repair of worn-out cells. Nutrition gives energy for different metabolic processes in the body. Nutrition is required to produce resistance against different diseases.

13. trypsin

14. salivary amylase

15. Hydrochloric acid helps your body to break down, digest, and absorb nutrients such as protein. The hydrochloric acid found in the stomach facilitates digestion by disintegrating complex large food molecules into simpler molecules. The acid activates the pepsinogen enzyme required to digest proteins.

16. Saliva, the watery liquid produced by glands located under the tongue, is an essential component of the digestive process. Saliva is 98% water, so it moistens the mouth and helps compact food into softened particles for easier swallowing.

17. Digestive enzymes play a key role in breaking down the food you eat. These proteins speed up chemical reactions that turn nutrients into substances that your digestive tract can absorb. Your saliva has digestive enzymes in it. Some of your organs, including your pancreas, gallbladder, and liver, also release them.

18. small intestine

19. heterotrophic  

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The anterior pituitary receives signalling molecules from the hypothalamus, and in response, synthesizes and secretes seven hormones. The posterior pituitary does not produce any hormones of its own; instead, it stores and secretes two hormones made in the hypothalamus.

Answer:

they differ like

Explanation:

The anterior pituitary receives signalling molecules from the hypothalamus, and in response, synthesizes and secretes seven hormones. The posterior pituitary does not produce any hormones of its own; instead, it stores and secretes two hormones made in the hypothalamus.

Answer:

surface waves

Explanation:

surface waves

Answer:

a

Explanation:

gdgs

Answer:

A. Carbon monoxide pollution

Answer: Motor vehicle exhaust is the most common factor leading to carbon monoxide poisoning

Explanation: People drive every day to go do daily activities, while driving is an efficient way of traveling long distances quickly, it runs off of fossil fuels which the waste product of is horrible for the environment.

Answer:

Both depends on one another.

Explanation:

Yes, there is a direct relationship between the number of pollinating plants and the number of honeybees because honeybees are insects that are responsible for pollination in the flowering plants. The population of flowering plants also has a great effect on the survival of honeybees because these flowering plants provides food in the form of nectar on which these honeybees survive and make honey from it. So we can say that both flowering plants and honeybees depends on one another for the successful growth and development.

Answer:

They cause reactions in your nervous system that arent meant to happen

Answer:

Mutualism is a symbiotic relationship in which both species benefit.

Explanation:

Answer:

The position it holds in the food chain

Explanation:

A food chain is a succession of organisms that eat other organisms and may, in turn, be eaten themselves.

Answer:

I thinks its d but not sure

Explanation:

Lipids are macromolecules composed of fatty acids. The diagram represents the inability of the lipids to break in the water. Thus, option c is correct.

Lipids are said to be polymers as they are large molecules made of the monomers of the fatty acid chains and glycerol bonded together by chemical bonds. They include oils, fats, steroids, waxes, hormones, phospholipids, etc.

They are energy storage molecules along with carbohydrates and act as messengers in the form of hormones. They store energy in fat cells (adipose) for a longer period of time. They make the component of the cell membrane, blood cells, and cholesterol.

They are soluble in an organic solvent but not in water as it is a non-polar compounds with hydrophobicity and hydrophilicity. They are insoluble and remain intact in the water molecule.

Therefore, option c. the lipids do not break in the water.

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Answer:

Instead of cells, a non-living thing is made up of elements or compounds that form from chemical reactions. Examples of non-living things are rocks, water, and air.

Explanation:

hope this helps:)

Answer:I think that answer is b

Explanation:

From studies and research, I believe the proper question would be:

"How do the animals satisfy their need for water?" or "How long do the animals live?"

Explanation 1:

When studying the desert, asking "Can you buy the animals in pet stores?" is not going to help you find information about the desert because it is not a question to get information about the desert, only information if you just buy it at your local pet shop.

Explanation 2:

Asking "How many offspring do the animals have?" does help us learn about animals, but we are trying to find information on the structure of the desert in which the animals live in. We are not looking for how many children the animals will have because it doesn't fully relate to the question we would be asking.

Side Note: Offsprings mean children.

           Hope this helps!

      ~Hocus Pocus