One side of your face is identical to the other side. You are _____. radially symmetrical asymmetrical bilaterally symmetrica

Answer:

E. have a variable region that binds to a specific antigenic determinant.

Antibodies E. have a variable region that binds to a specific antigenic determinant.

This location of the antibody is known as the Fab (fragment, antigen binding) place. it's far composed of 1 constant and one variable domain from every heavy and light chain of the antibody. The paratope is shaped on the amino terminal cease of the antibody monomer by the variable domains from the heavy and light chains.

An antigenic determinant is a website online of an antigen molecule that is termed an epitope and interacts with the unique antigen-binding site within the variable vicinity of an antibody molecule called a paratope.

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The question provided is not complete as it lacks the group of choices, however the group of choices are given as follows:

A. A contraction fails to occur because an action potential is not generated in the muscle cell.

B. A contraction fails to occur because this toxin directly prevents ion release from intracellular stores.

C. A contraction fails to occur because neurotransmitter release by the motor neuron is blocked at the neuromuscular junction.

D. A contraction fails to occur because this toxin prevents cross bridge formation and thereby directly prevents contraction.

E. C and D are both true

Answer:

The correct answer is option A : A contraction fails to occur because an action potential is not generated in the muscle cell.

Explanation:

A muscle contraction takes place when action potential bring to muscles by nerves, which is traveled with the help of motor neuron and imitated the muscle contraction.

Acetylcholine or Ach is a chemical messenger to bring the nerve impulses between a nerve and a muscle. If the receptor is block with applying toxin muscle will not contract as ACh will not be able to propagate the nerve impulse to the muscle so there will be no action potential.

The correct answer is option A : A contraction fails to occur because an action potential is not generated in the muscle cell.

Answer:

"destroys->deforestation"

"Oil spills->harms aquatic"

"injecting->pollutes"

1. deforestation

2. injecting fracking fluids into the ground

3. oil spills during transport on a ship

THE EXCRETORY SYSTEM

Answer: The attachment shows the nephron which is the functional unit of the kidney.

It does the work of urine formation through 3 distinct processes.

-Ultra filtration( Small molecules are forced out of the selectively permeable membrane of the glomerulus into the Bowman's capsule under regulated pressure.these molecules are from the blood in the glomerulus brought in by the afferent arteriole.

- Selective reabsorption ( Useful molecule and iron such as glucose and sodium are reabsorbed back into the blood as the filtrate flows through the tubule(nephron)

-Tubular Secretion. ( Movement of molecules not filtered by the glomerulus during the initial stage of filtration back into the filtrate through the renal capillaries.

Stella's urine sample shows the presence of large protein (ULTRAFILTRATION)

John's blood test report indicates a high toxin level ( ULTRAFILTRATION AND TUBULAR SECRETION)

Miguel's blood test shows an increase in metabolic waste( ULTRAFILTRATION AND TUBULAR SECRETION)

Janice's urine report shows the presence of vital materials ( SELECTIVE REABSORPTION).

Answer: COMPUTER SIMULATION

Explanation: Computer simulation is a model that helps to scientists to have a clear and better understanding and be able to effectively predict the occurrence of future outcomes of real physical situations.

Computer simulation makes use of mathematical models to effectively analyse and predict future occurrences which helps the world to be better prepared and able to effectively manage physical and real world situations.

Answer:

The answer is "All of the above statements are true".

Explanation:

In the given-question all choices were true, which can be defined as follows:

Eye color is an example of Gene expression

Answer:

a. the climate gets warmer...

Explanation:

When volcanoes release greenhouse gases into the atmosphere, global warming is due to the greenhouse effect.

The Greenhouse effect may be defined as the phenomenon of keeping the earth warm due to the presence of certain gases in the atmosphere.

Greenhouse gases like carbon dioxide, Methane, and Nitrous oxide allow the solar radiations to enter but prevent the escape of heat radiations of longer wavelength.

Due to this, the gradual and continuous increase in the average temperature of the earth's surface occurs, a phenomenon known as global warming.

Therefore, when volcanoes release greenhouse gases into the atmosphere, global warming is due to the greenhouse effect.

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Question is incomplete, The complete question is as follows:

What has a greater influence on protein levels?

A. Protein degradation has a greater influence because they are denatured faster than the cell can produce them

B. mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced

C. mRNA destroyer concentration has a greater influence because mRNA is destroyed right after the proteins are produced

D. Protein degradation has a greater influence because outside factors like antibiotics can cause it, and it is difficult to recover from

Answer:

B. mRNA destroyer concentration has a greater influence because it is destroying mRNA before proteins can even be produced  

Explanation:

mRNA destroyer concentration has a greater influence on protein levels because mRNA destroyers abort the mRNA as soon as the enough mRNA are produced before formation of proteins.

mRNA destroyer follow the mRNA around itself and dragged it once mRNA is picked for protein synthesis.

Hence, the correct answer is "B".

Answer:

To improve the reliability of the results, the nutritional component of each category of water must be tested and recorded.

Second, the experiment should be carried out under greenhouse conditions.

The above actions will afford more control. When an experiment is controlled, it means that except for the dependent variable, all other variables are kept constant by the scientist.

By performing the experiment under greenhouse conditions, the kind of water the plants receive, temperature and other biotic actors are kept within measurable limits thus increasing the reliability of the results.

Cheers!

Explanation:

it is necessary in mammals and birds to separate oxygenated and deoxygenated blood because this makes their circulatory system more efficient and helps in maintaining a constant body temperature

Answer:

it is D

Explanation:

A grizzly bear’s habitat comprises of the physical area where the bear lives

A habitat is defined as the dwelling home of living organisms.

There are three major types of habitat; namely:

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Answer:

yes

Explanation:

The cells in blood are far larger than 500nm (Red blood cells: 6000-8000nm, white blood cells: 7000-21000nm, platelets: 2000-3000nm) and so they sit in the plasma as a suspension. The plasma also contains blood plasma proteins which are between 2-500nm and so they form a colloid in the water.

Answer:

The cells in blood are far larger than 500nm (Red blood cells: 6000-8000nm, white blood cells: 7000-21000nm, platelets: 2000-3000nm) and so they sit in the plasma as a suspension. The plasma also contains blood plasma proteins which are between 2-500nm and so they form a colloid in the water.

Hope this helps!!

Explanation:

Explanation:

The cell theory, or cell doctrine, states that all organisms are composed of similar units of organization, called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin’s theory of evolution (1859), Mendel’s laws of inheritance (1865), and the establishment of comparative biochemistry (1940).

First Cells Seen in Cork

While the invention of the telescope made the Cosmos accessible to human observation, the microsope opened up smaller worlds, showing what living forms were composed of. The cell was first discovered and named by Robert Hooke in 1665. He remarked that it looked strangely similar to cellula or small rooms which monks inhabited, thus deriving the name. However what Hooke actually saw was the dead cell walls of plant cells (cork) as it appeared under the microscope. Hooke’s description of these cells was published in Micrographia. The cell walls observed by Hooke gave no indication of the nucleus and other organelles found in most living cells. The first man to witness a live cell under a microscope was Anton van Leeuwenhoek, who in 1674 described the algae Spirogyra. Van Leeuwenhoek probably also saw bacteria

The cell theory, states that all organisms are composed of similar units of organization, called cells.

The concept of cell theory was in 1839 by Schleiden & Schwann which leads the foundation of modern biology. Cell theory states that every cell is generated from another preexisting cell.

This idea makes the great revolution in biology including Darwin’s theory of evolution (1859), Mendel’s laws of inheritance (1865), and the establishment of comparative biochemistry (1940).

Schleiden & Schwann propose every organism is composed of the cell, which is the basic unit of life and each cell comes from the preexisting cell, and each cell produces a progeny which is similar to its parent cell.

Therefore, cell theory states the existence of the cell in the organism.

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Answer:

Salinity pertains to the degree of saltiness or the relative proportion of salt in a solution. ... By definition, salinity in relation to limnology refers to the total amount of dissolved solids in water in parts per thousand by weight.

Answer:

Salinity is the saltiness or dissolved inorganic salt content of a body of water. Substances that are dissolved in water are usually called solutes.

Explanation:

Answer:

Atmosphere

Explanation:

Phosphorus cycle in nature is a unique cycle compared to the other natural biological and chemical cycles such as the carbon, nitrogen, sulfur and water cycles, as there is no gaseous phase in the phosphorous cycle. Due to the prevailing atmospheric temperature and pressure which are not appropriate for the formation of gases associated with phosphorus, the compounds in nature where phosphorus can be found are not gases. Phosphorus can therefore be found majorly in sedimentary rocks.

The atmospheric temperature and pressure are incapable of forming phosphorus compounds, Phosphorus has not been found in the atmosphere.

Phosphorus has been the recycled in the atmosphere within the biosphere, lithosphere, and hydrosphere. In the nature, the phosphorus has been present in the sedimentary rocks, with the absorption by plants and animals.

The phosphorus cycle has been consisted of the weathering, absorption by plants and animals and return to the lithosphere with the decomposition. Since the atmospheric temperature and pressure are incapable of forming phosphorus compounds, Phosphorus has not been found in the atmosphere.

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Answer: For the scientist to have alternative hypothesis considered, it is imperative he takes certain steps, this steps will ascertain the scientific claims already made about the evolution of species.

Therefore,the scientist will simply test the alternative hypotheses inorder to know that they are incorrect.

This testing of hypotheses to ascertain their incorrectness is very useful in the study of fossils.

Answer:

Respiration is a type of metabolism.

Answer:

C. Respiration is a type of metabolism

Explanation:

Both B and D are incorrect because:

Multicelluar organisms have more than one cell; while singlecelled organisims only have one cell.

Also, homeostasis is a natural way an organisms body reacts to different situations, like when you sweat, your body is realising a way to lower the heat in your body. Therfore, A. is also incorrect.

Hope this helped!

Answer:

Attached to this solution is an image of the complete question and data.

The correct answer is:

6 million pairs of shoes

Explanation:

From the diagram attached to this answer, the following data can be gotten:

Watermelons                   shoes

(Millions of tonnes)          (Millions of pairs)

0                                        15

8                                        14

14                                       12

18                                       9

20                                      5

21                                       0

From the pattern of the data shown above, we notice that as the production of one commodity increases, the other is given up (decreases)

Therefore, to find how much shoes are given up if Capeland switches from 0 watermelons to 18 million tons of watermelon, we will find the difference between the number of shoes produced at 0 and at 18 million tons of watermelon

at 0 watermelon; shoes = 15 million pairs

at 18 million tons of watermelon; shoes = 9 million pairs

Therefore, number of shoes given up = 15 - 9 = 6 million pairs

Hence, 6 million pairs of shoes are given up tp increase production of watermelon from 0 to 18 million tons

Answer:

Starch

Explanation:

Starch is a polysaccharide composed of many glucose molecules linearly arranged.

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Glucose is the most abundant carbohydrate. The main source of glucose is vegetable starch.

This is a linear polysaccharide that can acquire a tridimensional helicoidal conformation. Each of the helices turns consists of six glucose molecules. In the interior of the helix, there are only hydrogen atoms. Hydroxyl groups are facing the exterior.

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Answer:

False.

Explanation:

This statement is false because organisms don't evolve - populations do. New gene variants (i.e., alleles) are produced by random mutation, and over the course of many generations, natural selection may favor advantageous variants, causing them to become more common in the population. However, because mutation rates are low relative to population growth in most species, mutation alone doesn't have much of an effect on evolution.

Answer:

C) Energy stored as ATP

Explanation:

100% on edge

Answer:

B. 1/2 and 1/4

Explanation:

Hemophilia is a rare disease that has to do with the inability for blood to clot. It is inherited on the X chromosome, hence, it is said to be X-linked. It is usually passed from mother to son. According to this question;

X - unaffected X chromosome

x = X chromosome affected by hemophilia

Y = Y chromosome

Therefore, in a cross between a Xx female (carrier) and a XY male (unaffected), the following chromosomes will be present in the gametes produced by each parent:

Xx- X and x gametes

XY- X and Y gametes

Using these gametes in a punnet square (see attached image), offsprings with genotypes: XX, Xx, XY and xY will be possibly produced.

XX (1) - unaffected female

Xx (1) - unaffected but carrier female

XY (1) - unaffected male

xY (1) - affected male (have hemophilia)

Based on the questions;

- 2 out of the possible 4 children will have the affected chromosomes i.e. both xY son and Xx daughter have the affected (x) chromosome. Hence, the fraction is 1/2

- 1 out of the 4 possible children is affected by hemophilia, which is the xY son. Hence, the fraction is 1/4.

Answer:

a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

Explanation:

Answer:

what you think is gonna happen in an experiment

Explanation:

Answer:

Ecological footprint estimates the requirements of renewable resources that a population consumes to live a particular lifestyle. Some ecologists are concerned because the result of the ecological footprint shows that the  demand of the population is increasing in comparison to the supply of nature.

For example in India, the ecological footprint shows negative impact of population demand over supply of nature.

Answer:

The correct answer is - The axial skeleton is like the frame of a swing set; the appendicular skeleton is like the swings.

Explanation:

The axial skeleton is the part of the human skeleton system that supports and protects vital organs of the body and makes a frame for the body structure that include bones of skull, trunk rib cage and ribs. The axial skeleton system is like a frame of a swing set that holds the swings and provide support to the swings.

On the other hand, The appendicular skeleton is like the swings of the of the swing set that can move and provide motion to the body, upper body limb, shoulder girdle and lower limb and pelvic girdle are the bones of appendicular skeleton.

Thus, the correct answer is - The axial skeleton is like the frame of a swing set; the appendicular skeleton is like the swings.

Answer:

C - Axial skeleton is like the frame of a swing set

Explanation:

Answer:

Climate on crop production contribute to the greenhouse effect and climate change and impacts on agriculture production.

Explanation:

Crop production of climate change is likely to change food security in the future, all people and economic to sufficient and safe an active life.

Climate change is to contribute to food prices and food production, and expensive climate change increase energy prices,production may increased crop water and suitable production.

Agriculture and food product system is a major process source of gas,could increase products,yield of crop restricted by the extreme events.

Productivity can also effects on the immune system them certain diseases,in animals are productivity and fertility.

Crop level to climate change is expected be in future changing crop irrigation practices,crop production under global change.

Climate change extreme events have been and strategies suggest to help maintain production and restoring farm type, crop, food systems, crop that stress tolerance.

Answer:

lipids

Explanation:

There are four major biological macromolecules in living systems viz: carbohydrate, proteins, lipids and nucleic acids. These macromolecules play a significant role in the optimal functioning of every living organism. Like every other polymer, these macromolecules are made up of simpler units called monomers that defines their chemical structure. In turn, the monomers consists of chains of chemical elements held together.

According to the question, Sebastian has colored balls that represents the elements contained by each of these macromolecules. The colored balls and the elements they represent are as follows: Red: hydrogen, Black: carbon, Purple: oxygen, and Green: nitrogen.

Lipids are structurally made up of fatty acids and glycerol, which are long chains of carbon and hydrogen elements with a relatively small percentage of oxygen in the structure. An example is palmitic acid, which has a structural formula: CH3(CH2)14COOH

Hence, Sebastian could make a LIPID macromolecule, which consists of long chains of red (hydrogen) and black (carbon) balls since lipids are mostly made up of carbon and hydrogen elements in their structure.

Carbohydrates are composed of more percentage of oxygen in their structure. Hence, a long chain of only red (hydrogen) and black (carbon) balls cannot make them. Proteins and nucleic acids are made up of additional nitrogen and phosphorus elements in their structure.

Answer:

B. Lipids

Explanation:

Lipids contain carbon and hydrogen.

Answer: The correct answer to the question is option D

ISCHEMIC HEART DISEASE.

Explanation: To answer the question effectively, let us look at the options given,what they are and how they affect the heart.

Endothelial cells play a crucial role in the regulating vascular tone,They do so by secreting variable amounts of constricting and relaxing factors inorder to control tissue perfusion.

Hypertension on the other hand occurs as a result of factors that varies distinctively and not all related to vascular tone.

Dysrhythmias on it's own will affect the function and conduction of heart chambers but not necessarily vascular tones.

Truncus arteriosus results in only in one large artery exiting/leaving the heart.

Answer:

Water, high specific heat capacity

Explanation:

The temperature fluctuations are relatively small in Jameson city because takes water longer to heat up and cool down due to its high specific heat capacity because water has high heat capacity that is it absorb alot of heat before it start to get hot. takes more energy to increase the temperature of water compared to other substances which help to regulate extremes in the environment.

Water surrounding cities take longer to heat up and longer to cool down so cities that are near the oceans will tend to have less change and less extreme temperatures compared to inland cities.

Answer:

I believe it's (water and specific heat) let me know if this is correct :)