Sinks and sources refers to places within the nutrient cycle where ______ is (are) stored.

A. animals
B. plants
C. nutrients
D. air​

Answer:

its d!

Explanation:

good luck! :)

The next step after testing hypothesis :-

1. Pose a question.

2. Propose ways to duplicate your research.

3. Analyze the results.

4. Draw conclusions.

The next step in the scientific method is to test the hypothesis via designing an experiment. This consists of growing a listing of substances and a process a step-with the aid of-step rationalization of the way to conduct the experiment.

Hypothesis is a testable declaration approximately the relationship between  or extra variables or a proposed reason for some observed phenomenon.

A hypothesis states your predictions approximately what your studies will find. It's far a tentative answer to your research query that has not but been examined. For a few research initiatives, you may must write several hypotheses that deal with distinct elements of your research question.

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The phenotype of an organism, this is the characteristics that are expressed, such as height is affected by a number of factors.

Genes play an important role influencing the organism's phenotype, but they are not the only factor. Environmental factors such as temperature, oxigen levels, light, humidity and the availability of nutrients can also affect the phenotype of an organism.

As an example, if we look at the height of a person, we can see that this phenptype is not only influenced by his or her genes, but also by environmental factors such as the person's nutrition. Also height can be influenced by other environmental factors such as the mother's health and nutrition during pregnancy (this could be directly related to the socioeconomic factors affecting the mother.

Answer: Chemical messengers from the endocrine system (hormones) will only bind to specific receptors on target cells. If the cell does not have the receptor for said messenger, the messenger will not bind and the cell will not change in function.

Explanation:

The result of meiosis is:

1. Four genetically different cells

2. Each nucleus is haploid and has a unique set of chromosomes.

3. Differences between haploid nuclei result from crossing over during prophase I and random segregation of homologous chromosomes during anaphase I.

We can conclude that the correct answer is:

unlike mitosis, meiosis results in the formation of four genetically different cells.

The right atrium is where the blood first enters. The tricuspid valve then allows the blood to enter the right ventricle.

A human or other vertebrate's complete body is circulated by a system of organs called the blood circulatory system, which includes the heart, blood arteries, and blood itself. It contains the heart and blood vessels-based cardiovascular system, often known as the vascular system.

The right atrium is where the blood first enters. The tricuspid valve then allows the blood to enter the right ventricle. When the heart beats, the ventricle pushes blood through the pulmonic valve into the pulmonary artery. The pulmonary artery takes blood to the lungs where it “picks up” oxygen.

Therefore, the correct answer is option A. heart, cardiac cell, circulatory system, cardiac muscle.

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Sickle cell anemia is an inherited autosomal recessive disease, which means that only the homozygous recessive individuals have the disease, heterozygous individuals are carriers, and homozygous dominant individuals are normal.

Let "N" represent the normal gene, i.e. without the mutation, and "S" represent the gene with the sickle cell mutation.

The genes of the parent without the disease will be NN, and it will produce gametes with the normal allele "N"

The genes of the parent that carries the disease will be NS and will produce gametes with the normal allele "N" and the recessive allele "S"

For both parents, each allele will have a 0.50 probability, this is granted by the random segregation of genes during meiosis.

To construct the Punnet square, you have to write the gametes of one of the parents in the first row and the gametes of the second parent in the first column. Write the corresponding probabilities for each gamete in each cell:

Cross each column with each row to determine the gene combination of the offspring:

When you cross the first column with the first row, the resulting genotypes will be NN, to determine its probability you have to multiply the probability of the individual inheriting each allele:

Write the result in the Punnet square:

Repeat for all combinations:

-First-row + second-column, the genotypes for the offspring will be NN, and its associated probability is equal to the product of the probabilities of each allele:

-Second-row + first-column, the genotypes of the offspring will be NS, and the associated probability is equal to the product of the probabilities of inheriting each allele:

-Second-row + second-column, the genotypes of the offspring will be NS, and, as before, the probability associated will be:

Write the results in the Punnet square:

As you can see, the offspring will have two possible genotypes NN and NS, to determine the percentage for each you have to add the probabilities of the cells that show the same genotype:

So, 50% of the children will be homozygous dominant (NN) and 50% of the children will be heterozygous (carriers).

As you can see, since there was only one parent that carried the allele S, there is no possibility that their children will carry the homozygous recessive genotype SS. The probability of their children having sickle cell anemia is 0%

The plant always has enough water because of condensation, because water cannot escape from the terrarium and evaporate from the soil.

A mixture of organic material, minerals, gases, liquids, and living things make up soil, often known as earth or dirt, and they work together to support life. Certain scientific definitions separate dirt from soil by limiting the former term to just displaced soil.

The soil matrix is a solid phase made up of minerals and organic materials, whereas the soil atmosphere is a porous phase made up of gases and water (the soil solution). Soil is a three-state system composed of solids, liquids, and gases. The interaction of the soil's parent materials (initial minerals), organisms, and the climate, as well as relief (elevation, orientation, and slope of the terrain), results in the formation of soil.

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Answer:

It is Fossvo(fossils?)

Explanation:

if thats a choice

The correct answer is as follows:

D. Anaphase

B. Prophase

E. Telophase

E. Telophase

A. Interphase

C Metaphase

E. Telophase

E. Telophase

B. Prophase

C Metaphase

A. Interphase

E. Telophase

E. Telophase

E. Telophase

The mitotic phases are: The chromosomes shorten and thicken during prophase. Chromosomes align in the center of the cell during metaphase. Chromatids split off at the centromere and migrate to opposite poles during anaphase. Telophase: Following the reorganization of nuclear envelopes around each cluster of chromosomes, two nuclei are created.

The correct answer is as follows:

D. Anaphase

B. Prophase

E. Telophase

E. Telophase

A. Interphase

C Metaphase

E. Telophase

E. Telophase

B. Prophase

C Metaphase

A. Interphase

E. Telophase

E. Telophase

E. Telophase

The complete question is:

Matching: match the term to the description

A. Interphase

B. Prophase

C Metaphase

D. Anaphase

E. Telophase

F. Cytokines

1. The sister chromatids are moving apart.

2. The nuclear membrane begins to fade from view.

3. A new nuclear membrane is forming around the chromosomes.

4. The cytoplasm of the cell is completely divided.

5. The chromosomes become unorganized, reappearing as chromatin.

6. The chromosomes are lined up along the center of the cell.

7. The nuclear membrane begins to fade from view.

8. The chromosomes are moving toward the opposite poles of the cell.

9. The spindle fibers are formed.

10. Spindle fibers grow longer and attach to chromosomes at the centromere,

11. Two identical daughter cells are formed.

12. The cytoplasm is completely pinched in two.

13. Chromosomes are replicated.

14. The chromosomes return to their threadlike form.

15. The cell is growing and carrying out normal life functions.

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The correct answer is the limbic system (a).

Bradycardia is a gradual than the normal heart rate. Having bradycardia means that the heart beats lesser than 60 times in one minute. It can be caused by several medical conditions such as heart tissue damage due to aging, congenital heart defect, myocardia, hypothyroidism, and damage to heart tissue due to heart attack.

Answer - Option 2 - underlying medical condition.

Solar energy is an apparent infinite source of energy, which alleviates the pressures associated with raw materials searching. Given said that, solar energy could be conceived as the more parsimonious source of energy, as it is the motor of biological systems that gave rise to life as we know (that is, photosynthetic organisms). So, to sum up, it is "infinite", cheap, and easy to exploit (at least in tropical latitudes).

a. RNA is a single stranded nucleic acid (number 5)

b. ribose is the sugar in RNA molecules (number 4)

c. tRNA brings amino acids to the ribosomes (number 7)

d. protein synthesis is a conceot related to the process of building a protein from the genetic. code (number 3)

e. transcription is the process of making an RNA copy, but it is not listed on the numbers category.

f. the central dogma of molecular biology states that the instructions for making a protein are contained in the DNA molecule, which are copied by RNA (DNA -> RNA -> protein) (number 1)

g. rRNA bounds itself to ribosomal proteins to create the structure of a ribosome (number 6)

h. mRNA carries genetic code from the nucleus to the cytoplasm (number 2)

From 1960 to 2015, the population increased to around 1.4 billion people. China's population increased dramatically under Mao Zedong, from 540 million in 1949 to 969 million in 1979. The 1979 implementation of the one-child policy caused a slowdown in this increase.

The one-child policy in China is partially to blame for China's enormous population and comparatively tiny youth population. In late 1981, China's population surpassed 1 billion.

In December 2021, there were 1.413 billion people living in China. Han Chinese made up 91.11% of the population in 2020, and minorities made up 8.89%. China has the 159th-lowest population growth rate in the world, at about 0.03%. The sixth national population census in China was held in 2010, and the seventh census was finished in late 2020, with results made public in May 2021. The data on this page, unless otherwise noted, solely applies to mainland China; see also Demographics of Hong Kong and Demographics of Macau.

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Considering the glycocalyx is associated with the external side of the membrane, we can assume the extracellular space is at the top of the membrane, while the intracellular space is below it.

The cell membrane is composed of two lipidic bilayers, cholesterol, proteins, and glucans incrusted in between.

⇒ Lipids

·       Phospholipids are amphipathic molecules.

·        They have hydrophilic heads facing the exterior and the interior of the cells and hydrophobic tails that arrange against each other in the interlayer space.

·        Lipids can easily change places with other lipids by lateral diffusion in the same layer.

·        They can diffuse transversally to the other layer but not as easily as lateral diffusion.

·        There are also other lipidic movements such as rotational diffusion that imply the rotation of the molecule.

⇒ Cholesterol

These molecules are incrusted in the membrane between the hydrophobic tails of lipids.

⇒ Proteins

Integral proteins are permanently associated with the membrane. They accomplish many different functions such as substances transport, cellular receptors, and cellular adhesion, among others.

→ Transmembrane proteins ⇒ span the entire membrane                        

→ Monotypic integral proteins ⇒ attached to only one of the lipidic layers

Integral proteins provide structure to the plasmatic membrane.

Periferic proteins are in the internal or external surface but not incrusted in the membrane.

⇒ Carbohydrates

Carbohydrates associate with lipids and proteins to compose glycolipids and glycoproteins. They are mostly located in the external lipidic monolayer, facing the cell exterior.

When talking about glycocalyx we are referring to the whole group of carbohydrates located on the external side of the membrane.

Carbohydrates have two main functions,

According to this information, we can assume that the extracellular space is located on tue top of the membrane, while the intracellular space is bellow the membrane.

Many more glycolipids and glycoproteins (glycocalyx) located in the superior bilayer suggests that the extracellular space is on the top.

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Answer:

No because life on mars would be very difficult as the gravity on mars is only one-third of on earth, it will cause cardiovascular diseases and bone loss so you will have to exercise a lot.

Explanation:

Answer:

Late adulthood

cataracts can be associated with aging and also diabetes

The air  then rises descends again, cools down, and the pressure increases. Air continues to circulate horizontally creating wind.

This is referred to as the moving form of air which is present and it is commonly as a result of the uneven heating of the Earth by the sun and the rotation of the earth.

The air which continues to circulate horizontally creates wind and the ones with a high pressure move to the areas with a low pressure. In the atmosphere, wind is responsible for certain activities such as in the reduction of the risk of suffocation as a result f the presence of many gases.

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Answer:

it depends, certain prescripted drugs can hinder your ability to drive (like Benadryl) and others can help you when you are driving like if you have ADHD it might help you pay attention to the road if you take your medication (i do not recommend doing this if you are told not to depending on the prescription)

The dilution of 1 mL stock in 99 mL of water is a 100-fold dilution. Option C.

A 100-fold dilution is a dilution involving 1 part of the stock solution and 99 parts of diluting solvent.

A stock solution is a standard solution from which solutions of lower concentrations can be prepared by dilution.

Thus, when you take 1 mL of a stock solution and dilute it with 99 mL of water, you are carrying out a 100-fold dilution with water being the solvent used in dilution.

A 100-fold dilution is different from a 1000-fold. The latter requires 1 part of the stock solution in 999 parts of diluting solvent.

For 10-fold dilution, 1 part of the stock is taken and diluted with 99 parts of the diluting solvent.

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The TCA cycle's starting and stopping requirements include the acetyl group, oxaloacetic acid, coA, citric acid, and others.

What is the TCA cycle, and what makes up the TCA cycle?

Tricaboxylic acid (TCA), commonly known as Krebs cycle, requires acetyl coenzyme A and a particular quantity of water to begin.

An substantial amount of citric acid is produced during the initial reaction between water and acetyle coA.

A molecule of coA is released as a result of this process, which is catalysed by the enzyme citrate synthase.

The following stage is isomerization, in which a substrate is converted from citrate to isocitrate.

Following decarbocylation, alfa ketoglutaric acid is produced, and succinyl coA is then oxidised to OAA in TCA cycle.

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When leaves turn color in Autumn, this is a sign of a chemical change.

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Plasmolysis is the loss of water by plant cells after being placed in a solution with a higher concentration of solute than the cells. This is called a hypertonic solution. Osmosis causes water to flow from the cell into the surrounding liquid.

Plasmolysis is the process by which cells lose water in hypertonic solutions. When cells are in a hypotonic solution the reverse process cytolysis or cell lysis occurs resulting in a decrease in external osmotic pressure and a net flow of water into the cell. When plants are not watered the extracellular fluid becomes isotonic or hypertonic causing water to leave the plant cells.

This causes a loss of turgor pressure. You will probably notice it as a wilt. In more concentrated solutions cell contents lose water by osmosis. They contract and move away from the cell wall. Cells are limp It is cytolyzed. When a high concentration of salt is placed on the outside of the cell membrane water leaves and binds with the cell. As water is lost by this movement, the plant cells shrink and die. Because of this, salt can kill plants. It leaches water out of the cells.

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Before reaching the eardrum, sound waves travel to Pinna and the auditory canal.

Longitudinal waves square measure what conjures sound. Compressions and rarefactions also are a gift in longitudinal waves after they undergo any given medium.

Sound waves enter the external organ and undergo the meatus, a tiny low tunnel that connects to the membrane.

When sound waves enter the ear, the membrane vibrates, causing these vibrations to 3 little bones within the cavum. The auditory ossicle, incus, and stirrup square measure the names of those 3 bones.

Hence, the correct answer is (d) Pinna and auditory canal.

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According to the given data It most likely rain on Day 4 98%.

The correct option is D.

The relative humidity is typically between 90 and 99 percent when it is raining, but it is rarely greater than 100 percent. Rain happens when water droplets get too large to be maintained in the atmosphere and fall to the ground. Clouds are created when invisible water vapor gas condenses to visible water droplets.

The water vapour content controls the amount of rainfall during extremely strong downpours, in which all of the water in the atmosphere is frequently soaked out. We are more likely to experience rain when the humidity is higher because water vapor expands at a faster rate.

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The complete question is -

James measured the humidity of the air in his back

yard each morning for four days. His data is

recorded below.

Daily Humidity Chart:

Day 1 52%

Day 2 46%

Day 3 75%

Day 4 98%

On which day did it most likely rain?

A. 1

B. 2

C. 3

D. 4

These factors are the same climatic factors that can either promote or inhibit plant growth and development and, eventually, crop productivity.

in the case of WIND HEAT AND LIGHT, they all increase the transpiration rates of the plants