Please help only 2 questions, multiple choice

Answers

Answer 1

The first answer is homeostasis so d

The second answer is organelle so c

Related Questions

Two plants were being tested for growth. Both were given water and proper soil, etc. However, one was placed in the closet, and one was placed in the window sill. Why did the one in the closet die?

Question 4 options:

It did not have chloroplasts.

It was not around other plants.

It did not receive sunlight.

It was not around people enough.

Answers

Answer:

It did not receive sunlight.

Explanation:

Plants need sunlight to survive along with water and nutrients from the soil.

Please help ASAP!
How would a cell wall aid a plant during a period of heavy or prolonged rainfall?

Answers

Answer:

The cell wall surrounds the plasma membrane of plant cells and provides tensile strength and protection against stress

Explanation:

The cell wall aid a plant during a period of heavy or prolonged rainfall by providing structural support, prevents water damage, regulates water uptake and maintains turgor pressure.

What is a cell wall?

Cell wall is the outermost covering of the cell above the plasma membrane, which plays an important role in helping the plant survive during periods of heavy rainfall and prolonged rainfall.

The ways in which it provides protection are:

Structural support- It provides necessary strength and rigidity to the plant, which helps it to stand upright and not collapse under the weight of water.Prevents water damage- It acts as a barrier by preventing water from entering the cells and causing damage to the plant internal structure.Regulates water uptake- It controls the flow of water into the plant, which helps regulate the water uptake and prevent the plant from taking in too much water.Maintains turgor pressure- It also helps to maintain turgor pressure.

Hence, the cell wall provides significant support and protection for the plant during periods of heavy and prolonged rainfall.

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Why does mutation happen regularly? *

Answers

Answer:

Explanation:

A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.

Material rising from the mantle reaches the surface at spreading centers.
A. True
B. False

Answers

Yes, It's true!

Explanation:

Material rising from the mantle reaches the surface at spreading centers.

A. True

B. False

A cell is placed in a hypertonic solution. Which will most likely occur as homeostasis is maintained in the cell?

A.
The cell will gain ATP molecules.

B.
The cell will gain water.

C.
The cell will lose water.

D.
The cell will lose sodium ions.

Answers

Answer:

B the cell will lose water

Explanation:

Because of the hypertonic solution water will move on the concentration gradient leaving the cell and entering the solution. Thus the cell looses water.

When a cell is placed in a hypertonic solution, it will most likely lose water (Option C) as homeostasis is maintained in the cell.

What is homeostasis?

Homeostasis is the ability of an organism or a system to maintain a relatively stable internal environment, despite changes in external conditions. It is a key aspect of biology that helps living organisms survive in their environment. Homeostasis is maintained through a series of physiological processes that regulate different aspects of an organism's biology, such as temperature, fluid balance, and pH

A hypertonic solution is one that has a higher concentration of solutes (e.g. salts) outside the cell compared to inside the cell. This creates an osmotic pressure gradient, which draws water out of the cell and into the solution in an attempt to balance the concentration of solutes on both sides of the cell membrane. As a result, the cell will shrink and lose water.

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A scientist compares two samples of white powder. One powder was present at the beginning of an experiment. The other powder was present at the end. She wants to determine whether a chemical reaction has occurred. She finds that neither sample bubbles or dissolves in water. She measures the mass and volume of the solids. Sample one has a volume of 45 cm3 and a mass of 0.5 g. Sample two has a volume of 65 cm3 and a mass of 1.3 g. What should the scientist conclude?

A.
The samples have the same color, so no chemical reaction has occurred.
B.
The two samples do not react with water, so no chemical reaction has occurred.
C.
The densities of the samples are different, so a chemical reaction has occurred.
D.
The densities of the samples are the same, so no chemical reaction has occurred.
E.
The densities of the samples are different, so no chemical reaction has occurred.

Answers

Answer:

I think it is C because there densities are different.

Plzzz help
Describe the relationship between the sickle cell phenotype and hemoglobin’s structure and function

Answers

Answer: Explanation:

Sickle hemoglobin differs from normal hemoglobin by a single amino acid: valine replaces glutamate at position 6 on the surface of the beta chain. Therefore the red blood cell bends differently giving it a sickle shape

Answer:

Explanation:

Sickle cell disease is a group of disorders that affects hemoglobin, the molecule in red blood cells that delivers oxygen to cells throughout the body. People with this disease have atypical hemoglobin molecules called hemoglobin S, which can distort red blood cells into a sickle, or crescent, shape.

Signs and symptoms of sickle cell disease usually begin in early childhood. Characteristic features of this disorder include a low number of red blood cells (anemia), repeated infections, and periodic episodes of pain. The severity of symptoms varies from person to person. Some people have mild symptoms, while others are frequently hospitalized for more serious complications.

The signs and symptoms of sickle cell disease are caused by the sickling of red blood cells. When red blood cells sickle, they break down prematurely, which can lead to anemia. Anemia can cause shortness of breath, fatigue, and delayed growth and development in children. The rapid breakdown of red blood cells may also cause yellowing of the eyes and skin, which are signs of jaundice. Painful episodes can occur when sickled red blood cells, which are stiff and inflexible, get stuck in small blood vessels. These episodes deprive tissues and organs, such as the lungs, kidneys, spleen, and brain, of oxygen-rich blood and can lead to organ damage. A particularly serious complication of sickle cell disease is high blood pressure in the blood vessels that supply the lungs (pulmonary hypertension), which can lead to heart failure. Pulmonary hypertension occurs in about 10 percent of adults with sickle cell disease.

Describe how new hair fibers are formed

Answers

Answer:

Taking nutrients from the dermal papilla, the hair bulb generates new hair cells. As these cells move up through the hair root, they mature through a process called keratinization, fill with fibrous protein and lose their nucleus.

Explanation:

I found this on the internet and don't know if it is correct but if it is can I get a brainliest please?

Almost all __________________ use the energy stored in _________ for their life cycle

Answers

Answer: living things and I’m not fully sure what the second one is sorry

Explanation:

I need help with this question

Answers

Answer:

Explanation:

During the day when the sun is shining the ground gets warm mainly as a result of

Answers

Answer:

The ground becomes warm by the effect of sunlight.

Explanation:

This is because the sun radiates huge amount of heat from its surface. This heat reaches the earth in the form of light energy. This heat is absorbed by the earth's surface and makes it warm.

If the sphincter allows any leakage from the stomach, some of this acid might move back into the esophagus, causing
1. Heartburn
2. Saliva
3. Constipation
4. Diarrhea

Answers

1, heartburn. Keep stomach acid in the stomach!

Heartburn bc of the acid In your stomach

Why do you think it's important for scientists to study plate tectonics? Explain.

Answers

Scientists are helping to improve understanding of how rocks in Earth's hot, deep interior enable the motions of tectonic plates, which regulate the water cycle that is critical for a habitable planet.

Studying plate tectonics is important because it helps explain Earth's surface features, predict natural disasters, investigate Earth's history, explore natural resources, and understand global climate patterns. It is a multidisciplinary field that provides valuable insights into the dynamic nature of our planet.

Scientists study plate tectonics for several important reasons. Firstly, understanding plate tectonics helps scientists explain the formation of different features on Earth's surface, such as mountains, valleys, and ocean basins. By studying the movement and interactions of Earth's tectonic plates, scientists can better understand the processes that shape our planet.

Secondly, studying plate tectonics is crucial for predicting and understanding natural disasters. Earthquakes, volcanic eruptions, and tsunamis are all related to tectonic activity. By analyzing plate boundaries and identifying areas prone to seismic activity, scientists can provide early warnings and help communities prepare for potential disasters.

Furthermore, studying plate tectonics is essential for investigating Earth's history. The movement of tectonic plates over millions of years has shaped the continents and influenced the evolution of life on our planet. By examining the distribution of fossils and rock formations, scientists can reconstruct past tectonic events and gain insights into Earth's geological history.

Additionally, understanding plate tectonics is crucial for exploring natural resources. Many valuable minerals and energy resources are formed as a result of tectonic processes. By studying plate boundaries and their associated geological features, scientists can identify potential locations for mining and resource extraction.

Lastly, studying plate tectonics contributes to our understanding of global climate patterns. The movement of tectonic plates affects ocean currents, weather patterns, and the distribution of landmasses. By analyzing these interactions, scientists can better predict and understand climate change.

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What events occur when the tectonic plates move and grind against each other?

Answers

Answer:

Earthquakes

Explanation:

Since the Tectonic Plates slide across each other it cause some to go above and some below which might eventually cause an earthquake.

Hope this Helps!!

A large group of seals from Prince Harold Coast Antarctica has emigrated to Oates Coast Antarctica How will this impact the remaining seal population Prince Hard Coast
A The Prince Harold population will decrease
B. The Prince Harold population will increase
C The Prince Harold population will be reduced to zero
DThis will have no impact on the Prince Harold population

Answers

Answer:

Explanation:

Because now it’s a larger group

B because it will increase

How are viruses, bacteria, and parasites alike?
A. They are non-living and can cause disease.
O
B. They are multi-cellular and can cause disease.
O C. They can infect a host and cause disease.
O
D. They are unicellular and can cause disease.

Answers

C they can infect a host and cause disease
Edge 2020

Jonathan has type O blood. What must his parents be for Jonathan to get type O blood?
There are 4 possibilities

Answers

Just like eye or hair color, our blood type is inherited from our parents. Each biological parent donates one of two ABO genes to their child. The A and B genes are dominant and the O gene is recessive. For example, if an O gene is paired with an A gene, the blood type will be A.

please answer please, If we have a male hemophiliac (such as Leopold) marry a normal female, is there any way to have sons who have hemophilia? Provide a justification for your response.

Answers

Yes, hemophilia is a genetic condition, which means it can be genetically passed down to a male child, even if only one parent is a hemophiliac. The condition is also more common in male children, and is a sex-linked recessive disorder, and is carried on the X chromosome. The mother could also have the gene without actually having the disorder, so she could possibly be a carrier without knowing it, so it is possible for their son to have hemophilia, even if the dad is the only one with the gene.
Hope this helps!!

II. Which animal is the top predator in many wetlands?
A. Raccoons
B. Alligators
C. Snakes
D Owls

Answers

Answer:

b. n kkhghiuttyytrftghjiutew

Answer:

c)Habitat is an area where an organism live

The answer is c
Habitat is an area where organisms live

which ecosystem has the greatest biological diversity and therefore the highest sustainability

Answers

Answer:

Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.

Explanation:

definitely D because a rainforest is extremely vast when it comes to different species

Answer:

Species richness is greatest in tropical ecosystems. Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.

How are environmental issues and food production related?

Answers

Answer: Food consumption and production have a considerable impact on the environment. Food production contributes

Explanation: , for example, to climate change, eutrophication and acid rain, as well as the depletion of biodiversity. It is also a considerable drain on other resources, such as nutrients, land area, energy, and water.

In general, food molecules are ___________ by the digestive tract of organisms so they can be _______________.
Select one:

broken down; absorbed into the bloodstream

broken down; released as heat

combined; absorbed into the bloodstream

converted to energy; used to power the muscles

Answers

Answer:

converted to energy ; used to power the muscles

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John Ray introduced a new method of grouping by similarities in appearance.
True
False

Answers

Answer:

true

Explanation:

Answer- True
hope this helps!!

1 point
Which explanation best identifies the relationship between mitosis and
reproduction? *
Mitosis is a form of sexual reproduction because the daughter cells form from one
single parent cell.
Mitosis is a form of sexual reproduction because the daughter cells are genetically
different from the parent cell.
Mitosis is a form of asexual reproduction because the daughter cells form a new
nuclear membrane after reproduction.
Mitosis is a form of asexual reproduction because the daughter cells are genetically
identical to the parent cell.

Answers

muscle of the prada’s

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