Can someone help me on this question for brainliest please.

Answer:

A

Explanation: The membrane acts like a shield for the cell to keep it safe. A plant cell has a cell membrane AND a cell wall but an animal cell ONLY has a cell membrane. It also filters what can go in and out of the cell. Hope this helps(:

Hi there!

Before Kepler's discoveries, astronomers believed that all planets orbited the sun in a CIRCULAR orbit.

However, Kepler discovered that planets actually have elliptical orbits, although by varying degrees.

Answer:

A: It protects ecosystems, supervises public access of lands, and manages wilderness areas.

Explanation:

Trust me on this, also can I have brainiest please?

Hope you do well! :D

I did D at first, but I got it wrong.

Answer

b. Cruise ships discharge sewage, solid, liquid and air pollution

The statement that best describes pollution discharged by cruise ships is: Cruise ships discharge sewage, solid, liquid, and air pollution.

Pollution is the release of harmful or toxic into the environment by human or animal activities.

Pollution can either be any of the following:

According to this question, a cruise ship release the following types of pollutants into the environment:

Therefore, the statement that best describes pollution discharged by cruise ships is: Cruise ships discharge sewage, solid, liquid, and air pollution.

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Answer:

\( \boxed{C. \: T \: with \: A, \: and \: C \: with \: G} \)

Explanation:

In dsDNA the bases in the two strands are paired through hydrogen bonds forming base pairs (bp). Adenine forms two H-bonds with thymine from opposite strand and vice-versa. Similarly, guanine is bonded with cytosine with three H-bonds. As a result, always a purine comes opposite to a pyrimidine.

A - T   &   G - C

Answer:

1: Chemical Energy

2: Kinetic Energy

3: Electrical Energy

4: Mechanical Energy

Explanation:

1: The energy held in food is called chemical energy. It is a form of potential energy held within chemical bonds between atoms.

2: When flowing water is captured and turned into electricity, it is called hydroelectric power or hydropower. There are several types of hydroelectric facilities; they are all powered by the kinetic energy of flowing water as it moves downstream.

3: The power for lights and stuff is Electrical Energy, ofc :]

4: The chemical energy in the food gets changed into the mechanical energy of moving muscles.

Hope this helps!! :D

The correct options to the question will be:

It should be noted that the energy held in food is called chemical energy. It is simply a form of potential energy that is held within chemical bonds.

The energy of the wind or moving water is kinetic energy. The energy that powers out light is electrical energy while the energy that we use when we move around is mechanical energy.

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Answer:

D.

Explanation:

Paleozoic is not one of the 3 major periods of the Mesozoic Era

Hope that helps!

From 252 to 201 million years ago was the Triassic Period. Between 201 and 145 million years ago is the Jurassic Period. Between 145 and 66 million years ago was the Cretaceous Period, hence option D is correct.

54 million years of the Mesozoic Era, or 199.6 to 145.5 million years ago, are referred to as the Jurassic Period.

The Jurassic Period, so named after the Jura Mountains in France and Switzerland, where rocks from this era were first investigated, has gained widespread recognition.

The Cretaceous is the final part of the Mesozoic Era, lasting from 145.5 million years ago to 65.5 million years ago, and is characterized by the demise of the dinosaurs (except birds).

Therefore, the Paleozoic is not a period of the Mesozoic Era, hence option D is correct.

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Answer:

True

Explanation:

Explanation:

Dear Uncle [Uncle's Name],

I hope this letter finds you in good health and high spirits. I have been meaning to share some news with you, and I believe your guidance and support can make a significant difference in my life.

As you know, the summer vacation is fast approaching, and my friends and I have been planning to join vacation classes together. It is an opportunity for us to learn and engage in activities that would enhance our skills and broaden our horizons. We are all excited about the prospect of spending quality time together while acquiring new knowledge.

However, I regret to inform you that my father is currently facing some financial difficulties. Due to unexpected circumstances, he is unable to afford the expenses associated with the vacation classes. It has been a challenging time for our family, and my father's priority is to ensure our basic needs are met.

In light of these circumstances, I am writing to you, dear uncle, with the hope that you may consider extending your support. Your assistance would mean the world to me and enable me to participate in these vacation classes alongside my friends. Your generosity has always been a pillar of strength for our family, and I am sincerely grateful for everything you have done for us.

Attending these classes would not only be a source of knowledge and skill development but also a chance for me to bond with my friends and create lasting memories. It would enhance my educational journey and contribute to my personal growth. I genuinely believe that this opportunity would be a valuable investment in my future.

I understand that everyone has their own financial responsibilities and commitments. Therefore, I completely respect any decision you make, and I am grateful for your consideration. If it is not feasible for you to provide financial assistance at this time, I completely understand, and I will continue to explore other alternatives.

Thank you, dear uncle, for taking the time to read my letter. I eagerly await your response and value your guidance and support. Regardless of the outcome, please know that your love and presence in our lives mean more to me than anything material.

Sending my warmest regards and affection to you and the family. Take care, and I hope to hear from you soon.

With heartfelt gratitude,

[Your Name]

Answer:

During the summer, they spread across the tundra in smaller groups to feed. In fall, they group together again into larger herds for breeding. They stay in these larger groups throughout their winter migration to the “taiga” regions which are the areas just south of the tundra.

source :- kidzone

Explanation:

The functions of rough endoplasmic reticulum and Golgi body are related because A .proteins synthesised by the rough endoplasmic reticulum are modified by the Golgi body

Both the Golgi body and the rough endoplasmic reticulum (RER) are important in the production and processing of proteins. Ribosomes, which are found throughout the RER and produce proteins, are subsequently transferred into the lumen of the RER for further processing. These proteins are delivered by the RER to the Golgi body, where they are modified, sorted, and packaged for distribution to various locations inside cell or for secretion beyond it.

The Golgi body is in charge of altering proteins that the RER has synthesised. This might entail altering amino acids by adding or removing functional groups, adding carbohydrate chains to proteins to create glycoproteins, or chopping off pieces of proteins to create smaller peptides.

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The true statement is "Triglycerides are composed of three fatty acids bonded to a glycerol backbone".

Triglycerides are a type of lipid molecule composed of three fatty acid chains bonded to a glycerol molecule. The fatty acids are attached to the glycerol backbone through ester linkages.

Triglycerides are not always associated with cell membranes. Triglycerides serve as a storage form of energy in the body and are commonly found in adipose tissue.

Phospholipids are lipid molecules that are composed of a phosphate group bonded to a glycerol backbone and two fatty acid chains. The phosphate group is usually bonded to a polar head group, which can vary depending on the specific phospholipid.

Phospholipids and triglycerides are distinct molecules with different structures and functions. They have different compositions and roles in biological systems.

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Complete question:

Which of the following statements is true of phospholipids and triglycerides:

Triglycerides are composed of three fatty acids bonded to a glycerol backbone

Phospholipids are a phosphate head that is bonded directly to two fatty acids

Triglycerides are always associated with cell membranes, as they provide flexibility

Phospholipids and triglycerides are the same molecules

Phospholipids are composed of a phosphate group bonded to a glycerol backbone and two random side groups

Answer:

C: A change in scientific evidence regarding the theory.

The option c. A change in the scientific evidence regarding the theory resulted in the change in current scientific theory.

It is a theory that should be explained for the observations for the natural world that should be constructed by using the scientific method.

Also when there is any change in the scientific evidence with respect to the theory so it should have resulted in the change in the current scientific theory.

Hence, the option c is correct.

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Answer:

evidence towards the tapir

Explanation:

since a xray is required to abduct inffared images and structures of the tapir, you need comical evidence to use towards the tapir.

Answer: mountain roads are winding and gently sloping in order to reduce the effect of steepness which causes more downward gravitational pull to the vehicle on it . A steeper sloped road would slow the car down to a greater extent that an gently sloping one.

Explanation:

Answer:

1. The mitochondria are responsible for producing energy in the form of ATP through cellular respiration.

2. Prokaryotic cells are smaller and do not have a nucleus or membrane-bound organelles, while eukaryotic cells are larger and have a nucleus and membrane-bound organelles.

3. Ribosomes are responsible for synthesizing proteins in the cell.

4. The endoplasmic reticulum is responsible for protein and lipid synthesis and transport within the cell.

5. Plant cells have cell walls, chloroplasts, and larger vacuoles, while animal cells do not have cell walls, chloroplasts, or large vacuoles.

6. The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for transport within the cell or for secretion outside the cell.

7. Lysosomes are responsible for breaking down and digesting waste materials and cellular debris within the cell.

8. The cytoskeleton is responsible for maintaining cell shape, providing support and structure, and facilitating cell movement and division.

9. Passive transport does not require energy and involves the movement of molecules from an area of high concentration to an area of low concentration, while active transport requires energy and involves the movement of molecules from an area of low concentration to an area of high concentration.

10. Osmosis is the diffusion of water molecules across a selectively permeable membrane from an area of high water concentration to an area of low water concentration.

I hope these answers are helpful! Let me know if you have any more questions.

Answer:

1. The function of mitochondria in a cell is to produce energy in the form of ATP through cellular respiration. Mitochondria are also involved in other cellular processes such as apoptosis (programmed cell death), calcium signaling, and lipid metabolism.

2. Prokaryotic cells are smaller and simpler in structure than eukaryotic cells. Prokaryotic cells lack a nucleus and other membrane-bound organelles, while eukaryotic cells have a nucleus and various membrane-bound organelles.

3. Ribosomes are responsible for protein synthesis in a cell. They read the genetic code stored in messenger RNA (mRNA) and use it as a template to link amino acids together in the correct order to form a protein chain.

4. The endoplasmic reticulum (ER) is involved in protein synthesis, folding, and modification. It is also involved in lipid synthesis, calcium storage, and detoxification of drugs and toxins.

5. Plant cells have a cell wall, chloroplasts, and a large central vacuole, while animal cells lack these structures. Additionally, plant cells are typically larger than animal cells.

6. The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for transport to their final destinations. It consists of a series of flattened sacs called cisternae.

7. Lysosomes are involved in the breakdown of cellular waste and debris, as well as the degradation of damaged or unneeded cellular components. They contain enzymes that can break down various biomolecules such as proteins, lipids, and nucleic acids.

8. The cytoskeleton is a network of protein fibers that provides structural support to the cell, helps maintain cell shape, and enables cell movement and division. It is made up of three main types of fibers: microfilaments, intermediate filaments, and microtubules.

9. Passive transport is the movement of molecules across a cell membrane without the input of energy, while active transport requires the input of energy to move molecules against their concentration gradient. Passive transport includes diffusion, osmosis, and facilitated diffusion, while active transport includes primary and secondary active transport.

10. Osmosis is the diffusion of water across a selectively permeable membrane from an area of high water concentration (low solute concentration) to an area of low water concentration (high solute concentration). It is a type of passive transport and is important for maintaining the water balance in cells.

Hope this helps!

Answer:fter photosynthesis, plants release oxygen into the atmosphere. This is one of the most significant ways that plants contribute to the carbon cycle's oxygen cycling.

In the process of photosynthesis, plants create oxygen and glucose, a form of sugar, from carbon dioxide, water, and sunshine. Animals and other species use the waste product of photosynthesis, oxygen, which is discharged into the atmosphere, for breathing. Overall, photosynthesis and plant respiration are just two examples of the numerous creatures and natural processes that contribute to the intricate process of oxygen cycling in the carbon cycle.

Therefore, the correct option is B.

Explanation:

Your proof is that i had a unit like this and i got a 100

Answer: honestly it really depends on the water and how its dripped

Explanation:

Cats have evolved certain behaviors that are influenced by their natural instincts and experiences.

When a cat sees milk, it may be attracted to it because it contains nutrients that are important for its survival, and the cat may associate the presence of milk with positive experiences. This can include nursing from its mother as a kitten or catching and consuming prey that contains milk or milk products.

On the other hand, when a cat sees a stick, it may perceive it as a threat or danger, and may associate it with negative experiences, such as being hit or attacked by a predator. This can trigger the cat's natural instinct to flee or hide from potential danger, as a survival mechanism.

Overall, a cat's behavior is influenced by its instincts, past experiences, and environmental cues. It may approach things that it perceives as positive or beneficial, and avoid or flee from things that it perceives as dangerous or threatening.

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Answer:

34

Explanation:

B codes for brown bodies.

E codes of red eyes.

b and e together code for black bodies and brown eyes.

Heterozygous brown body snake would have the genotype Bb.

Heterozygous red eyes would have the genotype Ee.

Individuals that are heteozygous for both trait would have the genotype BbEe.

Crossing two heterozygous individuals:

BbEe   x   BbEe

Progeny:

9 BBEE

3 B_ee

3 bbE_

1 bbee

Recall that black bodies and brown eyes requires be, hence the ratio of the progeny with black bodies and brown eyes is 1/16.

If the total number of offspring produced is 544, the number predicted to have black bodes and brown eyes would be:

    1/16 x 544 = 34

Answer:

Explanation:

When an organism specie develops special adaptation over a period of time usually more than a year, it is to help the organism to withstand the unfavorable conditions in its ecosystem, it could also help to enable better survival for the given species.

It could also help to enable better reproduction and overtime it could lead to evolution of a specie.

The difference between 3CH4 and C3H12 is that the number of atoms of each element in each compound is different.

In chemistry, a compound is composed of a number of elements that are chemically joined together. Both 3CH4 and C3H12 are compounds.

The difference between 3CH4 and C3H12 is that the number of atoms of each element in each compound is different. The two are different compounds with different properties.

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Answer:Evolution of cells refers to the evolutionary origin and subsequent evolutionary development of cells. Cells first emerged at least 3.8 billion years ago [1] [2] [3] approximately 750 million years after Earth was formed. [4] The origin of cells was the most important step in the evolution of life on Earth.

Explanation:

Answer:

pollution or deforestation can both decrease genetic diversity by killing certain species.

Answer: protein > neurons > cardiac muscle > bladder > digestive system > human being

Explanation:

protein molecule, neurons individual cells, muscle tissue, bladder organ, digestive system interconnected organs, human being whole body

Answer: The answer is 5

Explanation: Because it is

here you go

Explanation:

Plants also use waxes as a protective coating to control evaporation and hydration and to prevent them from drying out. Waxes are valuable to both plants and animals because of their hydrophobic nature. This makes them water resistant, which prevents water from sticking on surfaces.

Answer:

D. Changes can occur to chemical properties of a substance, but the chemical composition of the substance remains the same.

Explanation:

When there is a chemical reaction, the change occurs to the chemical properties of a substance, but the chemical substance remains the same.

Hope it makes sense and helps you!!!