Shown below are 4 stages (A,B,C,D) (not in sequence) of a certain kind of cell division.

The function of the skeletal system most affected by gravity is a. Body support. Gravity constantly pulls our body towards the Earth, and it's the skeletal system that provides the structural framework to support and resist this force.

Our bones, especially the spine and lower extremities, are designed to withstand the compressive forces generated by gravity. They maintain our body's shape and posture, allowing us to stand upright, walk, and perform daily activities. The other functions mentioned, such as lipid storage, protection of internal organs, and blood cell production, are also essential but less directly influenced by gravity.

In summary, while all functions of the skeletal system are crucial, it is body support that is most affected by gravity, as it requires our bones to provide constant resistance to maintain proper body alignment and function. Hence, a is the correct option.

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Answer:

Then the prey that the fox eats would over populate and it would mess up the whole ecosystem.

Explanation:

The statement D. The repressor protein has fallen off off molecule could lead to the conclusion that the lac operon is on.

The lac operon in E coli bacteria is a group of genes that are transcribed as a unit or mRNA polycistronic which is then processed and produce the proteins required to metabolize lactose.

Therefore, with this data, we can see that the lac operon in E coli bacteria is used to metabolize lactose and it may be repressed by a repressor sequence.

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Explanation:

Deforstation can be reduced by combined efort of all as if we combinely work together to shop deforestion and start afforestation there is a high chance of reduction of deforestation. All people together can start afforestion in sense the deforestion awarness would be raised and everyone would stop deforesting and start afforesting.

Answer:

This is biomagnification, and it means that higher-level predators-fish, birds, and marine mammals-build up greater and more dangerous amounts of toxic materials than animals lower on the food chain. In this activity you will explore the biomaginification of toxic chemical, mercury, through a simple marine food chain.

Explanation:

Seeds grow with the help of various natural resources like water, oxygen, and sunlight, which help them to sprout and grow roots and develop into new plants. Some seeds grow as soon as they land in the ground, while others need a specific time period to grow.

The life of a plant begins with a seed that contains the necessary resources required for the plant's growth, which includes the embryo, endosperm, and protective seed coat.

The process through which plants grow, reproduce, and die is called their life cycle. It includes different stages like germination, growth, flowering, pollination, fertilization, seed production, and dispersal.

Seeds need water, food, and a little heat to grow into new plants. Water helps seeds to soften and expand, and food helps them to provide the necessary nutrients required for growth. The heat helps seeds to break dormancy and activate enzymes that speed up the germination process.

A new plant has the same life cycle as its parent plant. Plants have a unique life cycle, and every stage of the life cycle is essential for their growth and development. New plants inherit their genetic traits from their parent plants, and their life cycle is the same as that of their parent plant.

New plants that grow from seeds inherit their genetic traits from their parent plants and have the same life cycle as their parent plants. The life cycle of a plant includes the stages of germination, growth, flowering, pollination, fertilization, seed production, and dispersal. Thus, new plants that grow from seeds are like their parent plants.

True. The effectiveness of most antimicrobial drugs is greater when the microorganisms are actively growing and dividing.

Antimicrobial drugs are natural or synthetic chemicals that kill or slow down the growth of microorganisms like bacteria, fungi, helminths, protozoa, and viruses.

This is because the drugs target specific components or processes in the cells of the microorganisms, such as cell wall synthesis or DNA replication, which are only occurring during active growth phases. Antimicrobial drugs are less effective against dormant or slow-growing microorganisms.

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Transport proteins help the plasma membrane transfer both necessary and unwanted molecules.

Proteins called "transport proteins" are responsible for moving materials across cellular membranes. In the membrane itself, transport proteins create a channel or a carrying mechanism that enables their substrate to move from one side to the other. Three different classes of transport proteins are involved in assisted diffusion: channel proteins, gated channel proteins and carrier proteins. A channel protein, a subclass of transport protein, functions as a pore in the membrane by rapidly allowing water molecules or tiny ions to pass. In order to move the specific solute being transported across the membrane, carrier proteins—also known as carriers, permeases, or transporters—bind the target solute and go through a sequence of conformational changes.

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The RNA that could have the same effect as the methylation would be S. I. R. N. A because they don't directly bind to the 5' cap,.

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The object or planet that is a gaseous giant is Y (option C).

A gas giant is a large planet mostly composed of helium and/or hydrogen. These planets, like Jupiter and Saturn in our solar system, don’t have hard surfaces and instead have swirling gases above a solid core.

The gas giants of our solar system — Jupiter, Saturn, Uranus and Neptune — together make up a group known as the Jovian planets.

According to this question, an image is showing the solar system and it's nine planets in order of distance from the sun. The gas giant is Uranus (planet Y).

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Answer:

O Mitochondria have an inner membrane and a folded outer membrane.

Answer:

The scientist can make use of the data to draw or reach a conclusion by making inferences about possible explanations for the data.

Explanation:

The nuclear power is a technology, providing 11 percent of electricity globally. This provides only one-fifth of America's electricity, and there are currently only five reactors under construction.

The use of nuclear reaction to produce electricity is called as nuclear power.

It can be done either by nuclear fission, decay or fusion reactions mainly by uranium and plutonium.

As America has only 5 reactors under construction recently which provides one-fifth of America's electricity.

Thus, the given statement is false.

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Answer:b

Explanation:

In the sealed jars, no flies, maggots, nor eggs could enter, thus none were seen in those jars. Maggots arose only where flies were able to lay eggs. This experiment disproved the idea of spontaneous generation for larger organisms.

The correct option that exemplifies the contractility of muscle is Lifting a textbook.

:

Muscle contractility refers to the ability of a muscle to contract or shorten forcefully in response to a stimulus. Lifting a textbook involves the activation of skeletal muscle fibers, which contract and generate force to lift the object. The other options listed do not necessarily involve muscle contraction or the generation of force.

Passive lengthening of muscles occurs when external forces stretch the muscle, and the muscle lengthens without actively contracting. Waving at a friend involves a conscious decision to move the arm, but it does not necessarily involve forceful contraction of the muscles. The process of exhalation involves the relaxation of respiratory muscles and passive recoil of lung tissue, rather than active muscle contraction.

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Answer:

C sorry if I'm wrong

step by step explanation

Answer:

An earthquake is a sudden and violent shaking of the ground caused by the movement of tectonic plates beneath the Earth's surface. Tectonic plates are massive slabs of rock that make up the Earth's crust and are constantly moving and shifting. When the plates collide or slide against each other, they can create a release of energy in the form of seismic waves that cause the ground to shake.

The magnitude, or strength, of an earthquake is measured on the Richter scale, which ranges from 0 to 10. Earthquakes with a magnitude of 4.5 or greater can cause significant damage, while those with a magnitude of 7.0 or greater can be catastrophic and cause widespread destruction.

Earthquakes can occur anywhere in the world, but are most common in areas where tectonic plates meet or where there are active faults. They can also be triggered by human activities such as mining, drilling, and the construction of large dams.

An increase in the hemoglobin concentration of the red blood cells would increase the rate of oxygen diffusing from lung alveoli into the blood.

The capillaries (small blood vessels) lining the alveolar walls allow oxygen to diffuse from the alveoli to the blood throughout this process.

Hemoglobin in red blood cells absorbs oxygen as it enters the bloodstream.

Then, as the blood returns to the heart, the heart sends the oxygen-rich blood through the arteries to the body's tissues.

The alveoli are where blood is infused with oxygen (air sacs).

Small blood arteries called capillaries are located quite close to the alveoli.

Oxygen and carbon dioxide travel along the concentration gradient due to the alveolar and capillary walls' extreme thinness.

This motion is referred to as diffusion and an increase in the hemoglobin concentration of the red blood cells would increase the rate of oxygen diffusing from lung alveoli into the blood.

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Protons are positive

Electrons are negative

Answer:

B- Plant Cells need chloroplasts to make food because most plants cannot move to get there food on their own

Answer: B

Explanation:

i think that

The most commonly employed test of short-term verbal memory is the "Rey Auditory Verbal Learning and Memory Test ".

Memory is thought of as a process where a trace of information about a person's past is stored.

The temporal lobes, located on each side of the brain, play a crucial role in processing and storing verbal memory, such as language comprehension and auditory information. On the other hand, the frontal lobes, situated at the front of the brain, are responsible for various cognitive functions, including visual memory.

Visual memory involves the ability to store and retrieve visual information, such as faces, objects, and spatial relationships. While both temporal and frontal lobes contribute to different types of memory, their primary roles are verbal and visual memory, respectively.

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Answer:

Stem cells are cells with the potential to develop into many different types of cells in the body. They serve as a repair system for the body. There are two main types of stem cells: embryonic stem cells and adult stem cells

Explanation:

Totipotent (or Omnipotent) Stem Cells.

Pluripotent Stem Cells.

Multipotent Stem Cells.

Oligopotent Stem Cells.

Unipotent Stem Cells.

Answer:

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Answer:Gene and DNA are the two genetic terminologies mainly used to determine the characteristics of a living thing. In general, a gene is a short section of DNA and DNA- Deoxyribonucleic acid is a molecule which carries the genetic instructions or the hereditary materials

Explanation:The difference between DNA and gene are summarized below

Difference between Gene and DNA

Gene DNA- Deoxyribonucleic acid

Genes are the DNA stretches which encode for specific proteins. DNA is a biomolecule, which contains genetic information

Regulates the traits of an organism. Regulates gene regulation.

Gene is a specific sequence present on a short stretch of DNA. DNA made up of two long chains of polynucleotides wound together

Genes are made up of either DNA or RNA. DNA is a polymer of nucleotides

A gene is located on a chromosome. DNA is located within the nucleus of the cell.

Are coded with heredity information. Encodes the genetic instructions.

Answer: penis snake

Explanation:

Hey there!

The peppered moths actually turned black as a result of the soot from factories changing the color of the bark on the trees - their habitat.

They all turned black because the ones during the Industrial Revolution were turned black, and this caused a mutation, so when they bred with others, their offspring turned black, causing them to ALL turn black.

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Answer:

False

Answer:

FALSE!

Explanation:

The skeletal system provides support for the body and protects vital organs, but it is not directly responsible for carrying oxygen in the blood. The transportation of oxygen is primarily done by the respiratory system through the lungs and the circulatory system via red blood cells.

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