Identify the results of humans removing large amounts of Earth's vegetation. Select all that apply.
Earth cannot control climate.
Earth cannot control chemistry.
Earth cannot control water.
Earth cannot control volcanoes.
Answer:
Earth cannot control chemistry
Leaves absorb oxygen to make food
True or false
Answer:
false *
Explanation:
because leaves prepare their food by using raw materials .
Explain how a disease could cause an effect on the overall function of an organ system by describing a specific example and identify a technology that has been developed to replace the lost cellular function.
plssss help
Answer:
Bradycardia, a type of heart disease that causes heartbeats to be slowed down, disappear, or not able to travel, can be treated with a pacemaker, which helps stimulate heartbeats artificially.
Explanation:
Identify the structures in the cell pictured on the right.
Label A
Label B
Label C
Label D
Label A - Nucleus
Label B - Cytoplasm
Label C - Ribosome
Label D - DNA
Organelles of a cell
The picture is that of an animal cell.
The parts labeled A, B, C, and D respectively are the nucleus, the cytoplasm, the ribosome, and the cell's DNA.
The nucleus is located centrally and controls the activities of the cell. It is a double membrane organelle that house the genome of the cell. Materials are able to move in and out of the nucleus while the nuclear membrane act as a selectively permeable membrane.
The cytoplasm represents the inner content of the cell. It consists of the inner organelles and the liquid content, otherwise known as the cytosol.
The ribosome is a small spherical organelle that functions in the synthesis of proteins. Some ribosomes lie freely within the cytoplasm while others are found attached to another organelle known as the endoplasmic reticulum.
The DNA is located inside the nucleus. It is the molecule responsible for the transfer of traits from parents to offspring.
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Use the information below to answer the following question(s). In a survey, the rate of heavy smokers was reported as 270 per 1000 individuals.
If two individuals are randomly selected, find the probability that neither of them is a heavy smoker.
Assume that having a child with brown eyes or blue eyes is equally likely and that eye color is independent of the other children. What is the probability of having 5 children with brown eyes?
The probability that neither of them is a heavy smoker is 0.53 or 53%
What is genetic probability?Probability serves to mathematically estimate the possibility of events that happen by chance, that is, as a matter of luck.
In this case:
Probability that selected one is heavy smoker is:
p=270/1000=0.27
Number of individuals selected is 2 and We know that:
P(X=x)=nc_x(1-p)^{n-x}(p)^x
We need to prove that X=0:
P(X=0)=nc_0(1-0.27)^{2-0}(0.27)^0
P=0.5329
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What is the best description of the word ‘Variation’ in biology?
A. Differences between individuals of a species, and between different species.
B. Change over time of a species.
C. The differences between different parts of the same organism.
D. A large group of completely different items.
Name the labeled structure
Answer is superior vena cava
Reason
See attached diagram
While most other organisms obtain energy from food, plants get their energy from the sun. Would you support research to genetically modify humans to be able to use photosynthesis for part of our energy and reduce the amount of food we need?
I need 3-5 sentence answer.
No, I won't support research to genetically modify humans to be able to use photosynthesis for part of our energy and reduce the amount of food we need.
What is Photosynthesis?This is the process in which green plants manufacture their food in the presence of sunlight.
The research won't be supported as a result of the absence of the digestive system to suit the product and reducing amount of food needed will lead to wastage.
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Most fossil fuel companies lobby heavily for laws that make it difficult to develop renewable energy sources or that stop research on the harmful effects of fossil fuels. How could this affect future generations?
A. It will create a more competitive market, leading to lower profits for everyone.
B. It will prevent future generations from losing money on profitless ideas like renewable energy.
C. We will not be ready when fossil fuels run out and, as they disappear, those in poverty will lose access to things like heating and fuel for vehicles.
D. The companies will share all the money they are making, so future generations won’t have financial issues.
We will not be ready when fossil fuels run out and, as they disappear, those in poverty will lose access to things like heating and fuel for vehicles is how they will be affected and is denoted as option C.
What is Fossil fuel?This is a hydrocarbon which is present naturally in the earth crust and examples include coal, crude oil etc.
When constant extraction is done, they will run out thereby making fuels for vehicles etc scarce and inaccessible.
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What type of body form of Cnidarians are tubular shaped and attach themselves to a firm surface?
A. polyp
B. medusa
C. nematocyst
D. spicule
The correct answer is Option A: polyp
Polyps are tubular body shapes of cnidarians that are attached to a firm surface.
What are cnidarians?Cnidaria or Coelenterata is a phylum of aquatic animals most of which are marine. Any organism under this phylum is called a cnidarian.These have special cells called cnidocytes (stinging cells) which help to capture prey.Examples of this group are the corals, jellyfish, hydra, sea anemone.Cnidarians have two types of body forms the polyp and the medusa which change during the life cycle of the animal. Some have only one type of body form throughout their life.The polyp is tubular and sessile, usually attached to a firm surface.Medusa (Jellyfish) is bell shaped and motile having tentacles hanging out at the margins.Spicules are sharp needle like shapes embedded in the sponges which help in defense.Nematocysts are large organelles produced as a secretory vessel from Golgi within cells called nematocyte in cnidarians.Learn more about polyp and medusa here:
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You conduct an experiment to determine the concentration of ions in an unknown solution. You place 300mL inside a dialysis bag and place the bag into a beaker of water with an ion concentration of 100 ppm (parts per million). When you check the experiment an hour later, the bag is swollen and has taken in water. What can you conclude?
The conclusion is that water has moved from the beaker into the bag by osmosis because concentration of solute in the beaker is lower than that in the bag.
What is osmosis?Osmosis is the movement of water molecules across a semipermeable membrane from a solution of low solute concentration to one of high solute concentration.
The concentration of solute in the beaker is lower than that in the bag, therefore, water will move from the beaker into the bag by osmosis.
In conclusion, the solution in the beaker is of lower solute concentration than in the bag.
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Hello! I am having trouble identifying the following images. I am unsure of what type of fungi or mold the organism is. Please share with me what you would identify it as and why. I would appreciate any feedback.
Be informed that the organism in the image which appeared above is a multicellular mold.
It can also be identified by its morphology in the culture medium
What are fungi?These are eukaryotic organisms which obtain their food heterotrophically. This means that they cannot obtain their food through the process of photosynthesis.
Generally, fungi could be either:
Unicellular i.e, singe celledMulticellularIn conclusion, the organism in the image which appeared above is a microscopic mold.
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Question no.02: Why spermopsida termed as successful group of land plant.
Answer:
because they are vascular plants.
Explanation:
I looked it up
Describe how an enzyme’s shape changes as it binds to its substrate. Describe a condition under which an enzyme might to be able to bind to its substrate.
The enzyme’s shape changes as it binds to its substrate because enzymes are highly specific, the main reason for enzyme’s shape changes as it binds to its substrate is temperature, pH and time.
Why an enzyme is so specific for its substrate?Is due to the fact that the enzyme's active site has a complementary format to its substrate, promoting a contract, like a key that fits perfectly in a given fixation.
Substrate is the reagent on which an enzyme acts. When an enzyme binds to its substrate, the enzyme-substrate complex is formed. This binding takes place in a specific region, called the active site.
One exemple of an enzyme changing it's shape to binds to a substrate is pepsine. Pepsine changes it's shape to bind to proteins in the stomach and break them down into smaller peptides.
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What happens to the trees in the taiga as global temperatures rise?
They grow bigger and use more resources.
They lose their needles in the winter.
They grow farther up the mountains.
They grow farther down the mountains.
Answer:
C
Explanation:
because they grow more than others time
6. What asexual reproduction process is utilized by Eubacteria?
A. binary fission
B. RNA production
C. ribosome creation
D. agamogenesis
A farmer stopped maintaining a field that was once used to grow crops. Over time, the field eventually became a forest. These changes best illustrate the process of
These changes best illustrate the process of plants.
The kingdom Plantae contains eukaryotes that are mostly photosynthetic. Algae and fungi were once included in the plant kingdom, which historically included all other living creatures save animals. However, prokaryotes, fungi, and some types of algae are not included in any modern definitions of the Plantae.
Plants are essential to the ecology because they help with the nitrogen cycle, prevent soil erosion, and participate in the water cycle. Although they also create oxygen, plants are a significant source of food. For humans to exist, it is essential that plants flourish.
One of the simplest methods to enhance the environment and enhance your surroundings is to plant a tree. Plants help to prevent soil erosion by filtering contaminants, absorbing carbon dioxide, and releasing oxygen. It will also assist to lessen your carbon footprint if you plant a few trees.
hence, The farmer ceased preserving the land because plants grew over time.
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Which of the following describes the impact on human health from global climate change?
A) Excess greenhouse gases will cause competition among vectors for hosts, and the vectors will die off.
B) Global climate change will result in the warming of cooler regions and will increase the spreading of disease.
C) Melting glaciers will keep regions too cold and prevent vectors from migrating to these regions.
D) Warmer climates will prevent vectors from traveling to new regions and infecting more humans.
Answer: B
Explanation: B) Global climate change will result in the warming of cooler regions and will increase the spreading of disease.
Answer:
B) Global climate change will result in the warming of cooler regions and will increase the spreading of disease.
Explanation:
It will be right on the quiz. Have a great, meaningful, and productive day, fellows!
look at the picture
I will leave your question unanswered. Thanks for the points I stole from you!
What is thWhich is a structure that directs the cell's activities?e basic unit of structure and function of all living organisms?
The nucleus is the structure that directs the cell's activities of living organisms.
What is Nucleus?This is an organelle which is usually membrane bound and contains the chromosomes.
It is involved in the control of the synthesis of proteins thereby aiding the directing of the cell activities.
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Hypothesis: If cells are viewed under higher magnification, then more cell organelles will be seen.
The hypothesis is false. Higher magnifications only increase the details of organelles, not increase the number.
Microscope's MagnificationAt lower magnifications, cells on slides are brought into focus and the organelles are seen but not in detail.
At higher magnifications, the organelles of cells appear bigger and can be studied in more detail compared to at lower magnifications.
Thus, higher magnifications do not increase the number of organelles that will be seen, but their details.
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1 Explain why animals depend on plants to keep them alive.
2 Describe how carbon dioxide and water reach the chloroplasts in leaves.
3 Describe two pieces of evidence that show that plants cannot make their own food without light.
4 Starch tests show where photosynthesis has taken place. What can you conclude using the evidence from test 1?.
à5 What does the evidence from test 3 show?
1. Animals depend on plants to keep them alive is Plants are producers they take energy from the sun, nutrients from the earth, and water to grow and have their flowers, seeds, and berries.
They also release oxygen, which all animals, including humans, need to stay. Animals are consumers and they all depend on plants for survival.
2. carbon dioxide and water reach the chloroplasts in leaves is Basically the roots consume the water and transports it up the xylem, which gets it to the leaves. Carbon dioxide contacts the chloroplasts in the leaves via a stomata
3. Two pieces of evidence that show that plants cannot make their own food without light. When plants lack light, they don't deliver chlorophyll (the green pigment in plants), and plants can turn pale green to yellow to white. Plant stems become “leggy,” meaning stems become long and thin and appear to be advancing toward the source of light.
The photosynthesis is the only method for synthesizing food. It is commonly believed that about 717.6Kcal energy is required to prepare just 10g of glucose. No energy input no metabolism and therefore no food.How are leaves tested for starch?The existence of starch in leaves can be tested by the Iodine test. When we remove chlorophyll from the leaf by cooking it in alcohol and then placing two drops of iodine solution, it is a color change to blue indicates the existence of starch.
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Insulin is an important hormone that allows the body to use glucose from food. After an individual eats a meal, glucose travels through the blood stream and reaches beta cells in the pancreas. The glucose causes the beta cells to release insulin. Insulin then travels through the blood stream and attaches to insulin receptors on other cells, which allows them to take in glucose and use it for energy.
What does this information best demonstrate?
A.
Cells interact with other cells for regulation and homeostasis.
B.
A hormone is a protein that performs many functions in the body.
C.
Only certain cells can use glucose to produce energy.
D.
Beta cells are not necessary for glucose to be utilized.
The best-demonstrated information is
A. Cells interact with other cells for regulation and homeostasis.
C. Only certain cells can use glucose to produce energy.
One of the important hormones in the human body is insulin. How the human body uses food to meet its energy needs is explained by knowledge of insulin and its workings.
Typically, food-derived glucose that enters the bloodstream is what causes blood sugar levels to rise. The pancreas is a gland that aids in the release of insulin to regulate blood sugar levels. Based on the blood sugar level, insulin often releases itself in a feedback system.
The insulin mechanism best exemplifies the following:
Together with glucagon, insulin contributes to the maintenance of the constant condition known as homeostasis in the human body.Considered essential for cells to use glucose and obtain energy is insulin.As a result, the mechanism of insulin in the human body shows how various cells use energy and how insulin is crucial for preserving homeostasis.
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Why will other ecosystems be affected if freshwater ecosystems dry up?
Other ecosystems will lose access to fresh water.
Other ecosystems will lose the species that live there.
Other ecosystems will be flooded.
Other ecosystems will have to rely on salt water
Answer: a
Explanation:
Which term describes how fast work is done?
A. Efficiency
B. Mechanical advantage
C. Force
D. Power
Answer:
A
Explanation:
The formation of the many kinds of body cells that make up an embryo begins with
The formation of multicellular organisms commences with a single-celled zygote, which divides rapidly to form the blastula. Cleavage refers to the rapid, multiple shots of cell division.
What is an embryo?Following conception, the baby enters the embryonic stage, a period of radical shift.
This stage lasts from the fifth to the tenth week of pregnancy. During a certain stage, the baby is referred to as an embryo. Several changes take place even during embryonic stage.
The primary distinction between an egg and an embryo is that an embryo is formed after the gametes are fertilized, whereas an egg is extracted from the ovary and stored in a freezer prior to fertilization.
Thus, multicellular organisms begin with a single-celled zygote that divides speedily to form the blastula. Cleavage is a term that refers to rapid, multiple strikes of cell division.
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Answer:2
Explanation:because lk
During an allergic response to a bee sting or pollen, which of the following hormone is often released?
a) PTH
b) prostlagin
c) GH
d) thyroxine
When a person has been stung by a bee, the body releases the hormone prostaglandin into the body. Option B
What is a bee sting?A bee sting is that painful feeling that occurs when you have an encounter with a bee. This is the result of the release of a chemical called melittin by the bee into your body.
When a person has been stung by a bee, the body releases the hormone prostaglandin into the body.
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What does longitude tell you?
A. How far south you are
B. How far north you are
C. How high up you are
D. How far east you are
Answer:
D
Explanation:
longitude, coordinate system by means of which the position or location of any place on Earth’s surface can be determined and described.
if it is lined from north to south it measures east to west that is why i say d
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As we learned in the lesson, Excel can be used in the workplace, but it can also be used at home. For example, a
great use for Excel is to create a weekly budget to help track and plan your monthly spending. Thinking about what
you have learned in this lecture to explain how you would use Excel to help you organize your finances.
Here are some prompts to consider:
Describe how a budget can help you ensure that you spend your money wisely.
.
. Explain how you would arrange the columns and rows to accomplish your task.
Identify how you could use color and cell borders to accent the cells.
. Consider the types of expenses you would track and how you prioritize them.
Highlight how you might include some of Excel's functions into your budget.
Excel can be used to organize finances and find out the future trends of income and expenditure.
How do you use Excel to organize finances?First you have to structure your personal budget spreadsheet. Then organize Your Budget using shading method. After that use Excel formulas to project your account balances into the Future. Calculate Payments and eliminate your debt. Excel sheet has many formulas on it which make the calculations better and very quick. This excel sheet has high importance in the budget making and organize finance.
So we can conclude that excel can be used to organize finances and find out the future trends of income and expenditure.
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Which season is the Southern Hemisphere experiencing in the picture?
Answer: Summer
Explanation: When the southern hemisphere is closest to the sun, and it receives the most sunlight it is summer time, while in the northern hemisphere it's winter.
The main factor that determines seasons is the way sun rays enter Earth, and not as much proximity, since there is only a 2% variation in the distance overall