The following models show one large cell (A) and four small cells (B). 0 C A B Which of the following states why one of the models is better for moving more nutrients in and out of the cell? © A. B is better because it has more surface area. © B. A is better because it has more surface area. O C. A is better because it has less volume O D. B is better because it has less volume

Answer:

SS: square Ss: square ss: round

Explanation:

The dominant trait is the capital letter

Answer:

A few basic components comprise a jackscrew. The main piece is the screw itself. The screw may be connected to a plate of some kind housing a load or attached to another piece of machinery that is then moved.

Answer:

a screw that can be turned to adjust the position of an object into which it fits.

a vehicle jack worked by a screw device.

Explanation:

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Research has demonstrated that people will help in-group members because they have feelings of empathy.

Empathy is an emotion that helps people to understand the situation in which another person lives.

Empathy also helps to develop healthy groups and communities and it is an evolutionary feature.

In conclusion, research has demonstrated that people will help in-group members because they have feelings of empathy.

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Answer:

independent: food

dependent: mass grain

Explanation:

Each myofibril is attached at either end of the muscle fiber, when sarcomeres shorten, the muscle fiber Shortens

Mechanism :

Myofibrils are components of the animal skeletal muscles that are made up of sacromeres. They perform the muscular contraction and relaxation via the sliding filament model.

To produce motion, A cross-bridge forms between actin and the myosin heads triggering shortening of the sacromere. This shortening of the sacromere results in the contraction of the muscle fibers, which the net effect can be seen to be a shortening of the fibers.

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Answer:

Disavantages if Carbon: Carbon can cause climate change by trapping heat, and they can contribute to respiratory disease from smog and air pollution.

Explanation:

1 chemical reaction endothermic

2 physical change. exothermic

3 chemical reaction endothermic

Answer:

1. Chemical reaction   |    Endothermic

2. Physical change     |    Exothermic

3. Chemical reaction  |     Endothermic

Explanation:

• Chemical reaction or Physical change?

A chemical reaction occurs when one or more substances converted into one or more different substances; they are usually irreversible.

A physical change occurs when the state of matter, or any other physical property, of a substance changes; they are usually reversible.

• Endothermic or Exothermic?

An endothermic reaction or change is one in which the system takes in thermal energy.

An exothermic change is where thermal energy is given out by the system.

According to the research, the collar bone is also known as the clavicle.

They are the bones of the human being that are found in the upper sector of the chest, articulating with the acromion of the shoulder blade and the sternum.

This bone is important for the composition of the shoulder joint complex, since it functions as a stabilizer for all parts of the shoulder, and therefore for the arm.

Therefore, we can conclude that according to the research, the collar bone is also known as the clavicle.

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Answer:

clavicle

Explanation:

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Answer:

Plants take up nitrogen compounds through their roots. Animals obtain these compounds when they eat the plants. When plants and animals die or when animals excrete wastes, the nitrogen compounds in the organic matter re-enter the soil where they are broken down by microorganisms, known as decomposers

Answer:

the

Explanation:

Answer:

The body raises the temperature of the body to create an unlivable area for  the parasite.

Explanation:

The most primitive surviving vertebrate are those in the Agnatha class.

This refers to a group of fishes that are jawless. They include lampreys and hagfishes.

Fishes in the Agnathan class have no fins nor stomachs.

Hagfishes still exist with over 76 species in different cold waters around the world.

Lampreys live mostly as parasites on other fishes and are found in the Atlantic oceans.

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The arteries act as rapid-transit passageways from the heart to the organs because of their large radii. The correct option is A.

The arteries are blood vessels that carry blood away from the heart to the cells, tissues, and organs that are in need of oxygen.

They have large radii and as such, serve rapid-transit passageways from the heart to the various cells, tissues, and organs.

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Answer:

C. The spacing between particle increases.

Explanation:

The particles are given more energy and begin to vibrate faster when a solid is heated. As the atoms vibrate faster, spacing in between particle increases.

Answer:

C

Explanation:

There are different types of T-Cells, aka Lymphocytes.

the Cytotoxic T-Cells will find and directly attack, also giving them the name "Killer Cells"

The Cytotoxic cell's main purpose is to find bacteria, viruses, and cancer cells.

Next,

there is the Helper T Cells, which recruit other immune system cells and organize a special immune response.

Regulatory T cells, suppress the immune system so it doesn't overreact. Just as in Auto-Immune diseases

Hair and nail growth are not homeostatically controlled. There is no miracle in using exuberance to handle these procedures. The disadvantage is that they can produce very long and interrupt normal activities.

Hair and nail growth are not homeostatic ally controlled.  The disadvantage is that they can produce very long and interrupt normal activities.

It is a physiological process where body to maintain the internal environment in response to changes in outer external environment.

Internal environment means the interstitial fluids while external environment refers to the environment in which organisms live.

Any  fluctuation in homeostasis leads to death or a disease of an organism, called as homeostatic imbalance.

The diseases include diabetes, dehydration, hypoglycemia, hyperglycemia, gout etc.

The controlling factors of homeostasis are stimulus can be any physical, chemical or environmental factors  leads to deviation of normal body’s environment

Receptor receives the stimulus and pass to the control center like neuron.

Regulator can control coordinator center receives and processes information from the receptor like Hypothalamus.

Effector can control commands from stimulus like Glands, muscles

Response refers to any reaction response to the stimulus.

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Electroporation is a technique used for inserting DNA into cells

Electroporation is a physical transfection method that uses an electrical pulse to create temporary pores in cell membranes through which substances like nucleic acids can pass into cells.

Electroporation is highly efficient for the introduction of foreign genes into tissue culture cells, especially mammalian cells.

Hence, electroporation is a technique used for inserting DNA into cells

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Species in this class have paired fins, hard scales, a two-chambered heart, and a pair of nostrils. Most species have 5-7 gill slits on each side of their body.

Chondrichthyes are cartilaginous fishes and are mostly marine with basic fish attributes.

They are a class of fishes known as cartilaginous fishes. They possess all the characteristics of fishes in addition to features such as:

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Answer:

fox is th right answer

Explanation:

fox

Answer: leopard

Explanation:

Answer:

more than likely fruits and berries

or natural sugars

The body does not require any added sugar to stay healthy. Hunters/gatherers and our ancestors consumed fruits and milk that are natural sugar to obtain energy.

Hence, added sugar is not necessary for our health when we have learned that aerobic cellular respiration uses glucose as a fuel source that can be obtained from natural sugar.

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By Newton's second law

F=ma , F=force (unit= N)

m=mass (Kg), a=acceleration (m/s2)

By applying the formula, we can calculate acceleration

a = F/ m

For object A,

Force =15N, Mass=25kg

a= 15/25

acceleration, a=0.6m/s2

For object B,

Force=15N, Mass=50 kg

a=15/50

acceleration,a=0.3m/s2

By calculation, the acceleration of object A is twice the of object B.

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Answer:

See image

Explanation:

Plato

Answer:

Cytokinesis

Explanation:

Cytokinesis is the step of the cell cycle in which the cell must faithfully separate the chromosomes and cytoplasm, yielding two daughter cells.

Recombinant DNA technology is used to prevent a genetic disorder caused by a mutation in a single gene by reinserting nucleotide sequences in a normal linear order.

A gene is a fragment of single-stranded DNA that is used during transcription and translation to produce a protein.

A mutated gene has a different nucleotide sequence when compared to the normal gene, which can be corrected by using recombined normal sequences.

In conclusion, recombinant DNA technology is used to prevent a genetic disorder caused by a mutation in a single gene by reinserting nucleotide sequences in a normal linear order.

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When mpf activity declines in a normal healthy cell it is due to degradation of cyclin.

The cell cycle refers to the process by which new cells are formed by mitosis from an existing cells.

Several cell components are important in the cell cycle.

Cyclin is an important part involved in the cell cycle.

A decrease in cyclin due to increased degradation results in a decline in mpf activity.

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The slight alterations in the DNA of red blood cells lead to  changes in the structure of the protein hemoglobin.

Sickle cell anemia refers to a defect in the red blood cells in which abnormal hemoglobin is present in the red blood cells resulting in the inability of the red blood cells to efficiently transport oxygen to the tissues.

This is due to a mutation in the gene coding for hemoglobin production.

The red blood cells have a sickle shape.

Therefore, the slight alterations in the DNA of red blood cells lead to  changes in the structure of the protein hemoglobin.

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According to the research, in the Kreb Cycle two ATP molecules are generated.

It is the set of reactions that generates most of the electron carriers (energy) that will be connected in the electron transport chain.

Two molecules of adenosine triphosphate (ATP) are formed from one glucose molecule (two turns of the cycle).

Therefore, we can conclude that according to the research, in the Kreb Cycle two ATP molecules are generated.

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The most prevalent antibody class in the blood is immunoglobulin G, IgG.

Antibodies are proteins which are produced by the body and form part of the immune system by binding onto antigens in order to enhance their clearance from the body.

Antibodies are found in the blood. The antibodies found in the blood include the immunoglobulins A, D, E, and G.

The most prevalent antibody class in the blood is immunoglobulin G, IgG.

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It is not true that Robert Hooke was in the jail while discovering cells.

Robert Hooke was observing cork through his microscope and saw tiny cubicles cells or boxlike cavitie which he later named as cells.

Cell can be defined as the smallest, functional, basic and structural unit of life.

However, biologists too categorize living organisms into two different groups based on the numbers of cells they posses. These are:

In conclusion, it is not true that Robert Hooke was in the jail while discovering cells. Rather, he was observing cork through his microscope and saw tiny cubicles cells or boxlike cavitie which he later named as cells.

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All viruses differ from bacteria in the sense that viruses cannot reproduce outside of a living host but bacteria can.

Virus is a submicroscopic, non-cellular structure consisting of a genetic material (DNA or RNA) surrounded by a protein coat called capsid.

A bacterium cell, on the other hand, is a single celled organism with cell walls but no nucleus or organelles.

A virus requires a living host cell to replicate while a bacterium can replicate itself irrespective of a living host.

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The atlantic cod (gadus callarias) is a fish which lays about 5 000 000 eggs in its lifetime. On average, only two of these eggs survive to become adult cod. This promote evolution because the environment selects the most evolved animals to survive that environment.

Evolutionary processes aim, therefore, to generate greater adaptation of species in an environment. When new species of organisms are formed from gradual changes in preexisting species.

So although there are several eggs initially only those that survived the environment are able and evolved to reproduce, so the evolution of species is carried out.

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