A scientist is working with methane (CH4) and butane (C4H10). Which statement best compares these chemicals? 1. They are two different types of molecules that each contain the same number of atoms. 2. They are two different types of atoms that are each made up of a different number of elements. 3. They are compounds made of the same two elements, but each contains different numbers of atoms. 4. They are matter made of the same two compounds, but each contains different types of elements.

Answer:

Vegetables are the most abundant sources of carbohydrates.

Explanation:

hope this helps you :)

A scientific explanation for a set of observations that can be tested and is written with an "if/then" statement is referred to as hypothesis and is denoted as option B.

This is defined as the proposed explanation for a particular phenomenon before several experiments are conducted by others in different parts of the world to confirm its authenticity.

It employs the use of words such as "if/then" which shows its unproven status which is therefore the reason why it was chosen as the most appropriate choice.

Read more about Hypothesis here https://brainly.com/question/606806

#SPJ1

Answer:

Biology is the study of living things.

Chemistry is the study of elements and their properties, reactions, bonds...

Explanation:

Answer:

75years

Explanation:

Let the Father's age be represented by 2x

Let the Son's age be represented by x

Five years ago;

Man's age will be = 2x - 5

Son's age will be = x - 5

If the ratio of their ages five years ago was 9:4, then;

2x - 5/x-5 = 9/4

4(2x - 5) = 9(x - 5)

8x - 20 = 9x - 45

- Collect like terms

-20 + 45 = 9x - 8x

25 = x

Hence, the son's age = 25 years

If x = 25, the father's age (2x) will be 2 × 25 = 50years

The sum of their ages will be = 25years + 50years = 75years

Answer:Aquaponics is a cooperation between plants and fish and the term originates from the two words aquaculture (the growing of fish in a closed environment) and hydroponics (the growing of plants usually in a soil-less environment). Aquaponic systems come in various sizes from small indoor units to large commercial units.

Explanation:

Answer: a system of growing plants in the water that has been used to cultivate aquatic organisms

Explanation:

Answer:

I think the answer would be the fourth one.

In response to the ingestion of large amounts of water and the potential loss of sodium as the body attempts to maintain homeostasis, the adrenal gland secretes aldosterone which functions to conserve sodium.

Adrenal glands secrete hormones that help in maintaining homeostasis in the body. There are various kinds of corticosteroids that are released from the adrenal glands. One kind is called mineralocorticoids. Mineralocorticoids are essential hormones that regulate the process of maintaining water and electrolyte equilibrium in the body.

To learn more about homeostasis here

https://brainly.com/question/3888340

#SPJ4

Endocrine glands have composed of cells that produce hormones and secrete them into the bloodstream.

Endocrine glands are also known as hormone-producing glands.  These glands are scattered in various parts of the body and have their respective roles in regulating organ systems.  Therefore, their health needs to be maintained in order to function normally.

1. Pituitary Gland

The pituitary gland is a small gland located at the base of the brain.  Despite its small size, the function of this gland is very large in the endocrine system.  This gland is considered the 'leader' of all endocrine glands, as it can produce various hormones that regulate the functions of other endocrine glands.

2. Thyroid Gland

The thyroid gland produces the hormones thyroxine (T4) and triiodothyronine (T3) which are responsible for regulating the body's metabolic processes.  In addition, this hormone also plays a role in the formation of bone tissue, body temperature regulation, and the development of the brain and nervous system.

3. Parathyroid glands

This gland releases parathyroid hormone which plays a role in regulating calcium levels in the blood.  The task of this hormone is assisted by the hormone calcitonin which is produced by the thyroid gland.

4. Adrenal glands

The adrenal glands are divided into two parts, namely the cortex and the medulla.  The cortex is responsible for producing steroid hormones that regulate metabolism, the immune system, the body's response to stress, and the development and function of sexual organs.

Meanwhile, the medulla plays a role in producing the hormone epinephrine or adrenaline to increase blood pressure and heart rate.

5. Pancreatic gland

The pancreas gland produces two hormones, namely the hormone glucagon and the hormone insulin.  Glucagon functions to store and increase blood sugar levels, while insulin functions to lower blood sugar levels.

6. Reproductive glands

The male reproductive glands or testes are located in the testicles or scrotum, while the female reproductive glands, the ovaries or ovaries, are located in the pelvis.

The testes produce the hormone testosterone to produce sperm, while the ovaries produce the hormones estrogen and progesterone which play a role in supporting pregnancy and regulating the process of ovulation and menstruation.

Learn more about endocrine glands at https://brainly.com/question/9194966.

#SPJ4

Incomplete penetrance is the cause of some inheritors of polydactyly failing to express the trait.

A baby who has polydactyly is born with one or more extra fingers. The condition is widespread and frequently runs in families. Typically, the extra fingers are small and have abnormal growth patterns. Among the most prevalent hand abnormalities that are congenitally present at birth is polydactyly.

Having extra fingers or toes is referred to medically as polydactyly. The term "hyperdactyly" may also be used to describe it. The hands and feet of newborns are among the most typical areas affected by birth defects. Congenital hand differences include polydactyly, which results in additional fingers developing on your child's hand.

To know more about polydactyly visit:

https://brainly.com/question/29386470

#SPJ4

The circulatory and respiratory systems help deliver oxygen to cells in the human body. The respiratory system facilitates the intake of oxygen, while the circulatory system distributes it to the cells.

Learn more about respiratory system: https://brainly.com/question/1685472

#SPJ11

When in anatomical position, the thumb is lateral to the second, third, fourth, and fifth metacarpals. Distal to the knee joint, which is distal to the hip joint, is the ankle joint. The cervical and thoracic spines are caudal to the lumbar spine. The sacral spine is rostral or superior to the lumbar spine.

The area of the body where two or more bones unite to allow for movement is known as a joint. In general, the wider the range of motion, the greater the danger of damage since the joint's strength is diminished.

A variety of tubular bones between the wrist (carpal) bones are referred to as metacarpals.

To know more about Human anatomy, visit,

https://brainly.com/question/2844926

#SPJ4

The most reliable method for determining the size of a molecule is through the use of a gel electrophoresis experiment.

This experiment measures the size of different molecules based on the rate at which they migrate through a gel. The smaller the molecule, the faster it migrates. During the experiment, a sample containing the molecules of interest is placed in the gel and a current is applied. As the current moves through the gel, the molecules move along with it. The size of each molecule can then be determined by measuring the distance it traveled in a set amount of time.

In addition to the gel electrophoresis experiment, other methods can also be used to determine the size of a molecule. These include size exclusion chromatography and dynamic light scattering. Both of these methods measure the size of a molecule by analyzing the amount of light that is scattered off the molecule when it passes through a beam of light. The larger the molecule, the more light is scattered and the easier it is to measure the size.

Once the size of the molecules has been determined, the results can be compared to the results of the dialysis membrane experiment. Molecules that were able to diffuse across the membrane will be smaller than those that did not. This can be used to determine the relative size of the molecules that did or did not diffuse across the membrane.

Learn more about dialysis membrane at : https://brainly.com/question/5862439

#SPJ4

Complete question :

Carefully analyse your result to determine the relative sizes of molecules that did or did not diffuse across the dialysis membrane?

Answer:

None of the options is an accurate statement about foreign policy. Foreign policy refers to a government's strategy for dealing with other nations and international actors, and it can involve a range of activities, such as diplomacy, military action, and economic sanctions. Its democratic nature depends on the political system of the country in question and the degree of public involvement in foreign policy decision-making. The media may cover foreign policy extensively, but it is not necessarily the most heavily covered topic. Finally, while both domestic and foreign policies can be subject to democratic processes, the level of democracy in each may vary depending on the political context.

Explanation:

The following statement about foreign policy is correct:    Foreign policy, which is the set of political goals that a nation-state pursues in its relations with other states and international organizations, is less democratic than domestic policy, which is option D.

Foreign policy is generally considered to be less democratic than domestic policy because it involves interactions and negotiations between different nation-states and international organizations, rather than within a single nation-state. Foreign policy decisions are often made by a smaller group of government officials, such as the President and their advisors, who have more direct involvement in international affairs than the general public.

Foreign policy is also subject to less direct public input and influence than domestic policy. While domestic policy decisions are often made through a more participatory process that involves input from interest groups, public opinion, and democratic institutions like the legislature, foreign policy decisions are typically made through a smaller and more centralized decision-making process.

Hence, the following statement about foreign policy is correct: Foreign policy is less democratic than domestic policy, which is in Option D.

Learn more about the foreign policy here.

https://brainly.com/question/1525044

#SPJ2

Answer:

Nucleoid

Explanation:

I just know by studying cells

In bacteria, the genetic material is located in a region of the cytoplasm called the nucleoid.

The nucleoid is the irregularly shaped region of a cell. It is the organelle where the genetic material of an organism is present. The genome of the prokaryotic organisms is generally circular.

Nucleoid is the irregular shaped region within a prokaryote cell where genetic material is present.  Nucleoid means nucleus like means irregularly shaped nucleus is present. Most of the genetic material is found in cell is DNAs. The genophore of DNA is prokaryote.

The length of genome varies widely, but it is generally few billion base pairs. The genophore is the DNA of prokaryote. It is commonly referred to as prokaryotic chromosome.

Therefore, In bacteria, the genetic material is located in a region of the cytoplasm called the nucleoid.

To learn more about nucleus, refer to the link:

https://brainly.com/question/23366064

#SPJ2

To learn more about Pangaea visit:

https://brainly.com/question/11694556

#SPJ4

The molecular weight cut-off (MWCO) filter that will allow glucose to pass through is the 200 MWCO filter. The reason for this is that glucose has a molecular weight of 180 daltons, which is less than the MWCO of 200 daltons.

A molecular weight cut-off (MWCO) filter is a filter that is used to separate substances based on their molecular weight. The filter has a pore size that is smaller than the molecular weight of the substance being filtered, which allows smaller molecules to pass through while retaining larger ones.MWCO filters are commonly used in laboratory settings to separate proteins, nucleic acids, and other molecules based on their size. They are also used in the production of pharmaceuticals and other biological products.

A molecular weight cut-off (MWCO) filter is a type of filter that separates molecules based on their size and molecular weight. The filter has a pore size that is smaller than the molecular weight of the substance being filtered, which allows smaller molecules to pass through while retaining larger ones. The MWCO filter is commonly used in laboratory settings to separate proteins, nucleic acids, and other molecules based on their size. In the production of pharmaceuticals and other biological products, MWCO filters are also used.

Glucose is a monosaccharide with a molecular weight of 180 daltons. The molecular weight of glucose is less than the molecular weight cut-off of the 200 MWCO filter. This implies that the glucose molecules will pass through the 200 MWCO filter.Therefore, a 200 MWCO filter is ideal for separating glucose from other larger molecules in a solution. Other sugars that have lower molecular weights than glucose will also pass through this filter, while larger molecules will be retained.

To know more about glucose, visit at:

https://brainly.com/question/13555266

#SPJ11

Answer:

D. individual susceptibility.

Explanation:

I took a test and it was correct!

Transcription is the process of RNA synthesis from a DNA template. During transcription, the DNA molecule serves as a template for the synthesis of a complementary RNA molecule.

During transcription, the DNA molecule serves as a template for the synthesis of a complementary RNA molecule. The enzyme RNA polymerase binds to a specific region of the DNA called the promoter and separates the DNA strands. Using one of the DNA strands as a template, the RNA polymerase assembles a complementary RNA molecule by adding nucleotides according to the base-pairing rules (A with U, T with A, C with G, and G with C). This process results in the synthesis of a single-stranded RNA molecule that is complementary to the DNA template.

Transcription is an essential step in gene expression, as it allows the information stored in DNA to be transcribed into RNA. This RNA molecule can then serve as a template for protein synthesis during the process of translation. Therefore, transcription is an integral part of protein synthesis from an mRNA template.

To learn more about Transcription click here

https://brainly.com/question/32523867

#SPJ11

The carbon in newly synthesized glucose during C4 photosynthesis comes from the atmospheric CO2 that is initially fixed into oxaloacetate and later released as CO2 again in the bundle sheath cells to be incorporated into glucose through the Calvin cycle.

1. \(CO_2\) enters the leaf through stomata, which are tiny pores on the leaf surface.
2. The\(CO_2\) is initially fixed into a 4-carbon compound called oxaloacetate by an enzyme called phosphoenolpyruvate carboxylase (PEPC) in mesophyll cells.
3. Oxaloacetate is then converted into malate, another 4-carbon compound, which is transported into the bundle sheath cells.
4. In the bundle sheath cells, malate is decarboxylated, releasing \(CO_2\).
5. The released \(CO_2\) is fixed into a 3-carbon compound called 3-phosphoglycerate (3-PGA) by the enzyme ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) through the Calvin cycle.
6. The 3-PGA molecules go through a series of reactions in the Calvin cycle, ultimately generating glucose and other sugars.

To know more about  C4 photosynthesis refer here :-

https://brainly.com/question/14670279#

#SPJ11

Answer:

They are the nucleotide base pairings for DNA( Deoxyribose Nucleic Acid)

Explanation:

A->T

C->G

Answer:

Adenine always binds to thymine, while cytosine and guanine always bind to one another.

Explanation:

This relationship is called complementary bases paring. These complementary bases are bonded together via hydrogen bonds, which can be easy broken apart what the DNA need to unzip and duplicate itself

Answer:

The cross between plants with genotype Yyrr and yyRr and gametes that are proces by them are:

gametes that the Yyrr individual can produce - Yr or yr.

The YyRr individual can produce  - YR, Yr, yR, or yr.

The possible genotypes are shown in the punnet square.

For a pea to be yellow and wrinkled, it would have the genotype YYrr, or Yyrr (as yellow is dominant (Y) and wrinkled is recessive (r)).

Therefore, we count the number of those genotypes of the total genotypes we get are shown in punnet square..

qiwidjdbsuwbsnna w shwnq. qjwiwnae. ehwj n ejeje e

Answer: B

Explanation:

Answer:

It’s D

Explanation:

Answer: The kangaroo is a herbivore , the ants are scavengers and what I think is an ant eater is the carnivore.

Explanation:

Answer:

Explanation:

Athlete’s foot

Athlete’s foot is a fungal infection that affects the skin on your feet, often between your toes. Typical symptoms of athlete’s foot include:

itching, or a burning, stinging sensation between your toes or on the soles of your feet

skin that appears red, scaly, dry, or flaky

cracked or blistered skin

In some cases, the infection can also spread to other areas of your body. Examples include your nails, groin, or hands

Ringworm of the scalp

This fungal infection affects the skin of the scalp and the associated hair shafts. It’s most common in young children and needs to be treated with prescription oral medication as well as antifungal shampoo. The symptoms can include:

localized bald patches that may appear scaly or red

associated scaling and itching

associated tenderness or pain in the patches

Answer:

number 3

Explanation:

Answer

(mitosis steps first)

Prophase II: Starting cells are the haploid cells made in meiosis I. Chromosomes condense.

Metaphase II: Chromosomes line up at the metaphase plate.

Anaphase II: Sister chromatids separate to opposite ends of the cell.

Telophase II: Newly forming gametes are haploid, and each chromosome now has just one chromatid.

Answer:

Option a. "2"

Explanation:

Answer:

Mitosis requires the chromosome to be replicated into 2 copies.

option a is the answer

Explanation:

The cell separates the copied chromosomes to form two full sets (mitosis) and the cell divides into two new cells (cytokinesis). The period between cell divisions is known as 'interphase'.The genome is composed of a number of chromosomes—complexes of tightly coiled DNA that contain genetic information vital for proper cell function. Because each resultant daughter cell should be genetically identical to the parent cell, the parent cell must make a copy of each chromosome before mitosis

Answer:

A some things change quickly

Answer:

There are two main temperature scales: °C, the Celsius Scale (part of the Metric System, used in most countries) °F, the Fahrenheit Scale (used in the US) They both measure the same thing (temperature!), but use different numbers:

Explanation:

! <3 ! , ! :)