Why is it important to have a control group?
A) If an effect is seen in the experimental group but not the control group, then it indicates that the factor changed is likely the cause of the effect.
B) If an effect is seen in the control group but not in the experimental group, then it indicated that the factor changed is likely the cause of the effect.
c) the sample size is too small without the control group
d) the researchers will be biased without a control group

The major reason that whole populations of people have different skin colors is because there are differences in sunlight across the world.

As people moved to areas farther from the equator with lower UV levels, natural selection favored lighter skin which allowed UV rays to penetrate and produce essential vitamin D. The darker skin of peoples who lived closer to the equator was important in preventing folate deficiency.

To know more about UV rays click here:

https://brainly.com/question/7850703

#SPJ4

Answer:

antibiotic resistant is a consequence of evolution via natural selection. the antibiotic action is an environmental pressure;those bacteria which have a mutation allowing them to survive will live on to reproduce

please mark me as brainlist please

When the ozone layer is thinner, more UV-B gets through it statement best describes the apparent relationship between ozone and UV-B. Thus, the correct option is C.

Ozone shields the Earth from the Sun's harmful ultraviolet (UV) rays. Life on Earth would be extremely difficult without the ozone layer in the atmosphere. Plants, as well as the planktons that feed the majority of ocean life, are unable to thrive and grow in high levels of ultraviolet radiation.

The amount of UVB that reaches the Earth's surface increases as the ozone layer depletes. UVB induces non-melanoma skin cancer and has a key role in the development of malignant melanoma, according to laboratory and epidemiological research.

For more information regarding Ozone, visit:

https://brainly.com/question/26254261

#SPJ1

Answer:

A. Iron and sulphur

Explanation:

It also contains oxygen

\({ \bf{formula}} : { \sf{FeSO_{4}}}\)

One of the requirements for emergency response information in an incident involving a hazardous materials package is the immediate hazard to health.(A)

In such incidents, it is crucial to identify the immediate hazard to health to ensure the safety of responders and the public. This information includes the toxicological properties of the substance, potential health risks, and required safety measures.

Understanding the immediate hazard to health helps emergency responders to determine the necessary protective equipment, containment strategies, and evacuation plans.

Additionally, it allows them to make informed decisions regarding decontamination procedures, medical treatment, and the environmental impact of the hazardous materials.

Providing accurate and comprehensive emergency response information ultimately saves lives, minimizes damage, and mitigates the risks associated with hazardous materials incidents.(A)

To know more about medical treatment click on below link:

https://brainly.com/question/27413866#

#SPJ11

Complete question:

In any incident involving a hazardous materials package, the requirements for emergency response information include several items. Which is one of these requirements?

A) Immidiate harazard to health

B) Hazard to wealth

C) Hazard to the immune system

D) Later hazard to health

The answer happens to be B.

Answer:

60

Explanation:

Answer:

I don't know it is hard and difficult to do

Answer:

c

Explanation:

Decomposers chemically break down dead material, while detrivores and scavengers physically alter it by chewing and tearing. Therefore, option (C) is correct.

Decomposers are organisms that perform the process of decomposition, which can only be accomplished by certain kingdoms, such as fungi, on dead or decaying organisms.

Detritivores are heterotrophs that eat dead or decaying matter to sustain themselves. Coprophagy is practiced by a wide variety of invertebrates, vertebrates, and plants. All these detritivores are doing their part to aid in decomposition and the cycling of nutrients.

A scavenger is an organism whose primary diet consists of decomposing matter. Carnivores, the group of organisms that primarily consumes meat, include many scavengers.

Therefore, option (C) is correct.

Learn more about organisms, here:

https://brainly.com/question/28738312

#SPJ5

To write an inclusive hypothesis from investigation, it should be structured with Mechanism of Evolution, Hypothesis and Data.

Mechanism of Evolution

The mechanism of evolution that I think caused the increase in FQ resistance is natural selection. Natural selection is the process by which organisms that are better adapted to their environment are more likely to survive and reproduce. In this case, the bacteria that are resistant to FQ are more likely to survive and reproduce because they are not killed by the drug. This means that the population of bacteria will become more resistant to FQ over time.

Hypothesis

My hypothesis is that the increase in FQ resistance in the bacteria on the farm is due to natural selection. I believe that this is because the bacteria that are resistant to FQ are more likely to survive and reproduce, which means that the population of bacteria will become more resistant to FQ over time.

Data

The new data supports my hypothesis because it shows that the number of bacteria that are resistant to FQ has increased. The data also shows that the bacteria that are resistant to FQ are more likely to be found in the environment where the FQ is being used. This suggests that the bacteria are evolving to become resistant to the FQ.

How to Include the Data

You can include the data in your hypothesis by stating that the increase in FQ resistance is due to the fact that the bacteria that are resistant to FQ are more likely to survive and reproduce. You can also include the data by showing a graph of the number of bacteria that are resistant to FQ over time.

This is an example of how to include the data in the hypothesis:

I hypothesize that the increase in FQ resistance in the bacteria on the farm is due to natural selection. This is because the bacteria that are resistant to FQ are more likely to survive and reproduce, which means that the population of bacteria will become more resistant to FQ over time. The data supports this hypothesis because it shows that the number of bacteria that are resistant to FQ has increased. The data also shows that the bacteria that are resistant to FQ are more likely to be found in the environment where the FQ is being used. This suggests that the bacteria are evolving to become resistant to the FQ.

Find out more on natural selection here: https://brainly.com/question/31234128

#SPJ1

The modification that is most likely to alter the rate at which a DNA fragment moves through a gel during electrophoresis is increasing the length of the DNA fragment, option C is correct.

During electrophoresis, DNA fragments migrate through a gel matrix based on their size and charge. Longer DNA fragments experience more resistance from the gel matrix and migrate slower than shorter fragments.

Altering the nucleotide sequence without changing the length, is less likely to affect the migration rate significantly as the charge and size of the fragment remain the same. Radioactively labeling specific bases, does not directly affect the fragment's size or charge and is unlikely to impact the migration rate. Leaving the length of the DNA fragment the same, would maintain the original migration rate, assuming other factors remain constant, option C is correct.

To learn more about DNA follow the link:

https://brainly.com/question/17568989

#SPJ4

The complete question is:

Which of the following modifications is most likely to alter the rate at which a DNA fragment moves through a gel during electrophoresis?

A. altering the nucleotide sequence of the DNA fragment without adding or removing nucleotides

B. radioactively labeling the cytosine bases within the DNA fragment

C. increasing the length of the DNA fragment

D. leaving the length of the DNA fragment the same

Answer:

The correct answer is : prokaryotic organisms like E. coli and higher organisms share common ancestor.

Explanation:

E. Coli is a prokaryotic organism or bacteria. On the metabolic level these organisms share similar homology with the higher organism other than this these organisms also show same core functions with higher level organisms such as elephant.

These similarities suggest that the all the living organisms share a common ancestor. The french scientist Jacques Monod statement "Anything found to be true of E. Coli must also be true of elephants." is also based on this notion.

#3. Small, low growing; Dark, hairy leaves to absorb heat; grow in clumps for greater protection from wind and cold; flowers often disk-shaped to collect sun.

For the main answer, what makes one cell so different from another in a multicellular eukaryote is that each cell has a specific function and shape that allows it to carry out its role in the organism.

that during embryonic development, different genes are turned on and off in different cells, leading to the specialization of different cell types. Additionally, each cell type has unique structures and organelles that allow it to carry out its specific function. For example, muscle cells have specialized structures called myofibrils that allow them to contract and generate movement, while nerve cells have long extensions called axons that allow them to transmit signals over long distances.

In conclusion, the diversity of cell types in a multicellular eukaryote is essential for the organism's survival and function. Each cell has a specific role and structure that allows it to contribute to the overall function of the organism. This long answer emphasizes the importance of cell differentiation in creating and maintaining a functional organism.
Main Answer: In multicellular eukaryotes, cells are different from one another due to the specialization of their functions and the expression of specific genes.

Explanation: In multicellular organisms, cells become specialized through a process called cell differentiation. During differentiation, cells acquire specific functions and characteristics by expressing certain genes and repressing others. This process is guided by various factors, such as signaling molecules, transcription factors, and the cells' position within the developing organism.

As cells differentiate, they may adopt different shapes and structures suited for their specific functions. For example, muscle cells are elongated and packed with proteins that enable muscle contraction, while nerve cells have long extensions called axons that help transmit electrical signals.

the differences between cells in multicellular eukaryotes arise from cell differentiation, which is the process through which cells express specific genes and adopt specialized functions and structures.

To know more about eukaryotes, visit:

https://brainly.com/question/29119623

#SPJ11

DNA technology plays a role in medicine except identifying mutations when EXAMINING paternity. It involves the determination of the biological father.

DNA technologies refer to the genetic engineering techniques used in medicine and biotechnology for diverse purposes.

For example, DNA recombinant technologies can be used to produce insulin, which is a hormone required for the treatment of individuals suffering from diabetes.

DNA paternity tests are genetic tests whose objective is to determine nucleotide (DNA) polymorphisms and thus indicate whether a man is another individual's biological father.

Learn more in:

https://brainly.com/question/19820456

Answer: Its Examining Paternity

Explanation:

Edge 2022

Myxedema is the condition that results from hyposecretion of the thyroid gland in an adult.

It is characterized by a slowing down of the body's metabolic processes, causing symptoms such as fatigue, weight gain, and cold intolerance. Ketoacidosis is a metabolic condition that occurs when the body breaks down fat for energy instead of glucose, resulting in a buildup of ketones in the blood. This is not directly related to hypothyroidism. Pheochromocytoma is a rare tumor of the adrenal glands that can cause high blood pressure, but it is not related to the thyroid gland. Tany is a condition in which there is sustained muscle contractions, often due to low levels of calcium in the blood, which can be a complication of hypoparathyroidism but not hypothyroidism.

To learn more about Myxedema visit;

https://brainly.com/question/13020690

#SPJ11

Answer:

40

Explanation:

given

product of two numbers =160

hcf =4 we know that

hcf*LCM=product of the numbers

LCM*4=160

LCM=160/4

LCM=40

The activity of allosteric enzymes can change due to variations in intersubunit interactions.

Multiple protein subunits are typically present in allosteric enzymes. Effectors are ligands that bind to allosteric enzymes and change binding at a different site on the enzyme. When a substrate also functions as an effector and affects the binding of additional substrate molecules, this is known as homotropic regulation.

learn more about enzymes here:

https://brainly.com/question/14953274

#SPJ4

Answer:

Explanation:

Cell wall

Function: Rigid layer on the outside of a plant cell.

Factory name: Wall/ Security gate.

Found in: Plant cell.

Cell Menbrane

Function: Soft layer controls what goes through cell.

Factory name: Door.

Found in: Plant and animal cell.

Nucleus

Function: Brain of cell.

Factory name: CEO's office.

Found in: Plant and Animal cell.

Mitochondria

Function: Powerhouse of cell.

Factory name: Furnace.

Found in: Plant and Animal cell.

Endoplasmic Reticulum (E.R.)

Function: Hallways in cell which carries proteins.

Factory name: Conveyor belt.

Found in: Plant and Animal cell.

Ribosomes

Function: Produce proteins.

Factory name: Workers.

Found in: Plant and Animal cell.

Golgi Bodies

Function: Receive proteins from E.R.

Factory name: Mail room.

Found in: Plant and Animal cell.

Choroplasts

Function: Turns energy into food.

Factory name: Solar panels.

Found in: Plant cell.

HOPE THIS HELPS :)

Answer:

Using a hot plate to heat an unknown liquid in a glass flask could be dangerous if protective/safety equipment aren’t worn. The unknown liquid may be a corrosive chemical which could cause burns when it gets in contact with any part of the body. It s therefore advisable to use googles to prevent the chemicals from splashing into the eyes. Safety gloves and long sleeve shirt should be worn to prevent heat and chemical burns. A shoe covering the whole part of the feet should also be worn as accidents such as the falling to the ground of the heated liquid may occur in the laboratory. This will help protect the feet from contact with the unknown liquid. Nose masks should also be put on to prevent inhalation of toxic chemicals into the body.

Answer:

A increase or decrease in temperature

Explanation:

a.The mucosa is composed of thick, non-keratinized stratified squamous epithelium.

c. The two layers of muscle in the superior one-third of the muscularis are skeletal.

Your esophagus is a hollow, muscular tube that includes food and liquid from your throat on your stomach. muscle tissue for your esophagus propel meals down to your stomach. one of the most common signs of esophagus problems is heartburn, a burning sensation inside the middle of your chest.

The esophageal lining is protected by way of a stratified squamous epithelium. due to the fact this epithelium is typically not uncovered to dryness or to abrasion, it's far non-keratinized.

Structurally, the esophageal wall is composed of four layers: innermost mucosa, submucosa, muscularis propria, and adventitia.

To know more about epithelium click here

https://brainly.com/question/27960196

#SPJ4

Answer:

The answer is ....C....                                               The fruit that they produse does ripen and and the growth of the plant starts speeding up. Also in winter the buds are inactive around a plant with hormones           I hope this helps :D

Answer:

plant eaters

Explanation:

they eat decaying wood and when decaying leaves

Answer:

parents can check if the embryo has a disease

if it does, they can terminate the pregnancy

some of these are caused by a change in a single gene known as a single gene disorder

if one or both parents are carriers of a genetic disorder, they have a chance of passing it to their children even if they themselves are healthy.

Explanation:

pre-implantation genetic diagnosis aka PGD

checks for diseases in embryos like

Cystic fibrosis.

Tay-Sachs disease.

Spinal muscular atrophy (SMA)

Hemophilia.

Sickle cell disease.

Duchennes muscular dystrophy.

Thalassemia

Down syndrome

some of these are caused a change in a single gene known as a single gene disorder

yourgenomeorg

learngeneticsutahedu

The aggregate supply curve in the near term shifts to the right when wages decrease as a result of a decrease in labour demand.

You would clarify how a major decrease in government spending results in a decline in aggregate demand as a Fedorian classical economist. As a result, the output and employment levels of the economy are in a recessionary gap.

This difference causes the unemployment rate to be higher than it otherwise would be. The aggregate supply curve in the near term shifts to the right when wages decrease as a result of a decrease in labour demand. This tendency will continue until real GDP equals natural real GDP, at which point the economy will have reached a long-term balance.

On the other hand, the decrease in government spending won't have any long-term effects on the amount of potential output or natural real GDP.

Learn more about supply curve:
https://brainly.com/question/30740064

#SPJ4

Answer:

taxonomy .

Explanation:

the science of naming organisms using a scheme of classification based on similar characteristics is named taxonomy .

( I don't know if this was the answer that you need )

please make my answer as brainelist.

Answer:

The answer is b) capsid.

Explanation:

Answer:

b) capsid

Explanation: