2. Can you rule out any of the men as Lisa’s father based ONLY on his ABO type?





3. Can you rule out any of the men as Lisa’s father based ONLY on his Rh type?











4. Which of the MEN could safely donate blood to Lisa?

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Answer:

1. Describe the genotypes given (use your notes). The first two are already done. ... Ratios tell you there is an even chance of having offspring with black eyes as there ... homozygous recessive and the other is heterozygous, the phenotypic ratio .... rough coat, while the 2 Ddrr will have dark fur with smooth coat and the 2 ...

Explanation:1. Describe the genotypes given (use your notes). The first two are already done. ... Ratios tell you there is an even chance of having offspring with black eyes as there ... homozygous recessive and the other is heterozygous, the phenotypic ratio .... rough coat, while the 2 Ddrr will have dark fur with smooth coat and the 2 ...

Answer:

Parent 1 RrBb Parent 2 RrBb

Explanation:

Answer:

Echinodermata

Explanation:

Plato Answer

Glucokinase or Hexokinase is a enzyme used at the first step of glycolysis.

Result: Glucokinase and hexokinase are used in the first step of glycolysis.

Answer:

false

Explanation:

Gravitational force has to do with the weight if the body

Answer:

True

Explanation:

The force that pulls other objects in will increase, but when it is being pulled towards something else, it will move slower and will need more force to be moved than something half it's size

Answer:

Answer is C.

When a household installs a dual flush toilet, the water is mainly conserved by limiting its consumption and thus eliminates the unnecessary loss of water.

Explanation:

A dual flush toilet is similar to a standard toilet but includes some water conserving features. It is an effective way to reduce the amount of water used in flushing . It has two buttons to select two different flush settings, one for the liquid waste and the other for solid waste. Normally less water is needed to get rid of liquid waste than solids. Some models of dual flush toilet system reuses the water in the hand washer for flushing. Standard toilets use siphoning action, where a siphoning tube is used to drain the waste. While flushing, a large volume of water enters the toilet bowl which fills the siphon tube and siphon pulls the waste and water down the sewer pipe. The siphoning action stops, when the bowl emptied and air enters the tube producing a gurgling sound. Dual flush toilet has a large hole at the bottom of the bowl and a wash down flushing design to push the waste down into the drain. This system needs less water per flush as no siphoning action is required. Also the waste is easily drained out of the bowl because of the large hole at the bottom of the bowl. In a dual flush toilet, the liquid waste flush utilizes only half the amount of water than the solid waste flush. The main disadvantage of a dual flush toilet is that it is more expensive than a normal toilet..

Answer:

B) Na+

Explanation: Na+ molecule is polar, oxygen and carbon dioxide are nonpolar molecules. The cell membrane is a phospholipid bilayer made up of lipid molecules with polar and nonpolar ends. Since it is a bilayer, two phospholipid layers are arranged, one on the other in such a way that one faces the back of the other. The non polar ends are away from outside and inside of the cell, while  the polar ends faces towards all the molecules inside and outside the cell.

Since polar-polar molecules repel each other, Na+ can't pass through the cell membrane easily. So it uses the proteins attached the cell membrane inside and outside to transport such molecules by using energy in terms of ATP.

Answer:

Basically land pollution is caused due to urbanization, mining, industrialization, landfill and improper waste disposal of agricultural chemicals . Major chemicals responsible are pesticides, lead, heavy metals, petroleum hydrocarbon etc.

Explanation:

Mining:

This creates large holes in the ground which in a long run causes soil erosion. Mining also removes the topsoil making teh soil barren land.It also releases harmful chemicals that contaminates the air and soil.

Industrialization:

The waste from the industry contains heavy metals in it. Which pollutes the urban soil as well as the cropland. Among all lead is most toxic that causes major part of land pollution.Also the chemicals makes the land infertile for making cultivation in it.

Main sources of land pollution are fertilizer use, overflowing landfills, deforestation, nuclear waste etc.

Explanation:

Land pollution is less visible when compared with water pollution but the effects of it are fatal. Several factors cause land pollution. In order to increase productivity agricultural sector uses chemical fertilizers and pesticides.  

These chemicals remain in the soil and the soil gets depleted of its fertility and the soil gets poisoned. These chemicals may also get washed into nearby water sources polluting the water body as well. Overflowing landfills are also a major cause of land pollution.  

It is not always possible to recycle all the waste generated. The waste that is dumped in landfills causes land pollution.

Answer:

There are four major classes of Biomolecules – Carbohydrates, Proteins, Nucleic acids and Lipids

Carbohydrate for energy, protein for building cells and other fuction like making structures like haemoglobin hair…etc, Nucleic acid for carrying hareditary material and lipids for insulation just to mention few

Answer:

waxes; prevents water loss and repels water

Explination:

Waxes, steroids, phospholipids, and triglycerides are all types of lipids. While their structures and functions all vary, they are all made of hydrocarbon chains that are hydrophobic.  Triglycerides (fats) are the body's energy storage molecules. Steroids make up sex hormone and cholesterol. Phospholipids make up the cell membrane, separating the cytoplasm for the environment.

Final answer:

One of the weaknesses of the Articles of Confederation was that Congress had no power to levy and collect taxes.

Explanation:

One of the weaknesses of the Articles of Confederation was that Congress had no power to levy and collect taxes. While Congress had the authority to coin and borrow money, it did not have the power to impose taxes on the states or collect revenue. This limitation made it difficult for the national government to fund its operations and fulfill its responsibilities.

1. There was just a single branch: There was only one branch of government because the Articles of Confederation established a unicameral legislature known as the Congress. This absence of partition of abilities was a shortcoming since it focused an excess of force in one body.

2. It was impossible to make laws: This is an inadequate choice. It appears to allude to the way that under the Articles of Confederation, Congress had the ability to make regulations, however it missing the mark on ability to successfully uphold them. This shortcoming made it challenging to lay out and keep up with the rule of law all through the country.

3. Laws could not be enforced: As previously stated, Congress lacked the authority to enforce its laws. This shortcoming brought about an absence of power and prompted a breakdown in policing, it trying to keep everything under control and resolve questions.

4. Congress lacked the authority to impose and collect taxes: This is a substantial shortcoming of the Articles of Confederation. The focal government missing the mark on power to force and gather charges from the states. This restricted the public authority's capacity to raise income and asset its tasks actually.

Congress's inability to levy and collect taxes was a weakness of the Articles of Confederation; the power to maintain an army was not a weakness.

Among the various limitations of the Articles of Confederation, the inability of Congress to levy and collect taxes was a major weakness. The Articles only allowed Congress to request money from states, rather than impose taxes directly. Moreover, without the power to enforce laws, the federal government under the Articles had to rely on the states to execute its decisions, often leading to inefficiency and lack of uniformity. However, contrary to the given options, Congress did have the ability to create and maintain an army and a navy, regulate trade and commerce with foreign nations and among the states, declare war, and conduct foreign relations, which was not a weakness as implied by one of the choices. The national government's significant lack of enforcement powers and its inability to impose taxes made governing difficult and were rectified in the subsequent U.S. Constitution.

Therefore, the statement implying that Congress had no power to levy and collect taxes is NOT a weakness of the Articles of Confederation, but in fact, it was a prominent weakness that the national government faced during that time.

Answer:

The correct answer is C eukaryotes have a greater variety of genetic material than prokaryotes.

Explanation:

Prokaryotic cells consist of single chromosome and their DNA is present in a dense region called nucleoid.As one copy of each gene is present in the chromosome prokaryotic cells are haploid.The DNA of prokaryotic cells are circular

 Whereas eukaryotic DNA is linear and multiple distinct chromosomes are present in eukaryotes.Two copies of each chromosome are present are in many eukaryotic cells.As a result the eukaryotic cells are diploid in nature.

   Due to this greater variety of genetic material the domain eukarya are more complex than archea and or bacteria domains.

Explanation:

4) actively transport water molecules out of  its cell

Active transport is a mediated process that requires an energy input and the use of specialized membrane proteins to move against the concentration gradient. These proteins require energy in the form of adenosine triphosphate or ATP in order to facilitate necessary conformational changes to the large protein molecules to alter the spatial location of the molecule. For instance, with Na+, K+ pumps in cell membranes.

The paramecium would need to move the water molecules against their concentration gradient, out of the cell. Thus it would need to use active transport to pump water out and maintain its osmotic balance.

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The best long-term solution for a paramecium to maintain a stable internal environment when the concentration of water in the pond is greater than the concentration of water in its cytoplasm is through active transport of water molecules out of its cell.

The best long-term solution for a paramecium to maintain a stable internal environment when the concentration of water in the pond is greater than the concentration of water in its cytoplasm is to actively transport water molecules out of its cell.

Paramecia have contractile vacuoles that collect and expel excess water to maintain water balance and prevent the cell from bursting in a hypotonic medium. This process requires energy but helps the paramecium regulate water movement and maintain internal stability.

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Answer: Glycogen

Explanation:

The energy in the human body is stored in the form of glycogen. In human beings the glycogen is stored primarily in the liver and muscle cell.

In liver the glycogen can make upto 5-6% of the organs fresh weight. and can store 100-120 grams of glycogen in it.

Glycogen is released slowly from the liver when the body is starving or the blood glucose is being consumed by the body.

Then there is a need that the stored glycogen is used by the rest of the cells.

Glycogen is the carbohydrate that is used for energy storage in the liver. It's a complex polysaccharide that is broken down into glucose for immediate energy when needed.

The carbohydrate used for energy storage in the liver is glycogen. Glycogen is a complex polysaccharide that serves as the main form of energy storage in animals, especially in the muscles and liver. When the body needs energy, it breaks down glycogen into glucose, which can be used for immediate energy or sent to the body's cells for use in cellular respiration. This makes glycogen a crucial factor in maintaining the body's energy balance.

Contrarily, cellulose is a carbohydrate found in the cell walls of plants, glycerol is a component of fats, and starch is a form of energy storage in plants.

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Final answer:

Density, which is mass per unit volume, affects how slowly or quickly a liquid flows. Denser liquids, with a higher mass to volume ratio, flow slower than less dense liquids.

Explanation:

Density is defined as mass per unit volume and is a crucial factor in determining how fluids flow. The density of liquids is typically higher than that of gases because the molecules in liquids are more closely packed together. Consequently, denser liquids tend to flow slower than less dense ones due to increased intermolecular attraction and resistance to movement.

To calculate density, the formula is density = mass/volume. Applying this to the statement that 'the denser a liquid, the slower it flows', it can be inferred that if we have two liquids, the one with a higher mass to volume ratio will be denser and hence, will flow slower.

For example, if we have two liquids with the following properties:

Liquid A will have a density of 2 g/cm³, whereas Liquid B will have a density of 1.5 g/cm³. Hence, Liquid A is denser and will flow slower than Liquid B.

Liquid A flows slower. Hence the correct option is a.

The density of a liquid is a crucial factor influencing its viscosity and, consequently, its flow characteristics. Density is determined by the ratio of mass to volume, and a higher density generally corresponds to a slower flow. In the provided data, Liquid A has a mass of 18 units and a volume of 10 units, resulting in a density of 1.8 units. In contrast, Liquid B has a mass of 8 units and a volume of 20 units, giving it a lower density of 0.4 units.

The significant difference in density indicates that Liquid A is denser than Liquid B. According to the relationship between density and viscosity, denser liquids exhibit higher viscosity, leading to slower flow rates. Therefore, the conclusion is that Liquid A flows slower than Liquid B due to its higher density, underscoring the critical role of density in determining the flow characteristics of liquids. Hence the correct option is a.

Complete question:

The denser a liquid, the slower it flows. The table below shows the mass and volume of two different liquids.

liquid Mass volume

A 18 10

B 8 20

Which of the two liquids flows slower?

A: Liquid A flows slower.

B: Liquid B flows slower.

C: They both flow equally.

D: This cannot be decided.

Answer:Use a greater number of plants

Explanation:

A biology student wanting to study how the amount of light affects the growth of aquatic plants over the course of a week should opt for plants that have higher growth rate and choose more number of plants.

These are the plants which grow in water and these are accompanied by the water as their habitat.  

Watery plants have thick cuticle covering on their plants where the waxy covering on their part help to minimise the damage they can cause to plants.

Ensuring that all the plants  should get equal amount of light along with equal amount of nutrition along with equal conditions without any change in the experiment setup.

Taking up more number of plants will help to record in more and have a maximum of result without any much of exceptions. These kind of instructions will help the student in fetching up the positive result.

Therefore, It is wiser to give equal conditions to the plant along with more number of plants to be taken.

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Answer and Explanation:

18. An experiment in which only one variable is changed is a(an)  controlled experiment .

19. The combination of chemical reactions through which an organism builds up or breaks down  materials as it carries out its life processes is called  metabolism.

20. Neutrons and  protons are found in the nucleus of an atom.

21. A chemical bond formed by the transfer of electrons is a(an)  ionic bond .

22. The pH scale is a measurement system that indicates the concentration of  hydrogen ions in a solution.

Answer:

DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA. It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine.

Answer:

A DNA sequence is the sequence of nucleotide bases stored in the nucleus of the cell. There are four different nucleotides, ATCG, which can be combined in various combinations and sequences to code for proteins needed to perform other functions in the cell.

Answer: liquid

Explanation:

Metabolic pathways involve a series of biochemical reactions converting substrates to final products through anabolic and catabolic pathways.

Metabolic pathways are a series of sequential biochemical reactions that convert a substrate molecule through a series of metabolic intermediates to yield a final product. Anabolic pathways build complex molecules from simpler ones, requiring energy, while catabolic pathways break down complex molecules into simpler ones, producing energy. This balance between building (anabolism) and degradation (catabolism) constitutes metabolism.

Answer:

B. Amino acids, because proteins are made of many small units called amino acids. They're attached to each other creating a long chain.

Proteins are made up of amino acids, which serve as the monomers for protein synthesis. The fundamental structure of an amino acid consists of a central carbon atom bonded to an amino group (NH2), a carboxyl group (COOH), a hydrogen atom, and a variable “R” group. The 20 different amino acids can be arranged in different combinations to form the unique proteins found in living organisms.

Amino acids are the monomers that make up proteins. All proteins are made up of different arrangements of the same 20 amino acids. Each amino acid has the same fundamental structure, which consists of a central carbon atom bonded to an amino group (NH2), a carboxyl group (COOH), a hydrogen atom, and a variable “R” group. The name "amino acid" is derived from the presence of the amino and the acidic carboxyl group.

Answer:

The correct answer is 4 molecules that contain genetic information and are made up of nucleotides.

Explanation:

DNA and RNA builds the genetic blueprint of the cell.DNA act as repository of genetic information.

   The genetic information is stored in the nucleotides that builds up both DNA and RNA molecules.

 The genetic information from DNA is transferred to mRNA and then from mRNA to protein by the help of transcription and translation process,both are important steps of central dogma of molecular biology.

Answer:

Disagree

Explanation:

During interphase, the cell copies its DNA in preparation for mitosis.

it spends its whole life doing this.

Answer:

Ty2 strain present in the Salmonella typhi bacteria can easily enter into the epithelial cells.

Explanation:

This is the bacteria that causes the typhoid fever in humans. This disease affects greater than 21 million people worldwide annually. On severe cases it leads to death of the patient. The penetration into epithelium cell is one among the essential part in its parthenogenesis. Previous interaction of the bacteria along with the epithelial cell are much necessary before its invasion. The expression involves the adhesins and fimbria.

Explanation:

For ATP production in the electron transport chain.

Hydrogen atoms contain 1 proton and 1 electron while being devoid of neutrons. When they lose their electron they form an ion or H+, a particle carrying a unit of positive charge. At the mitochondrial membrane, the outer membrane freely allows for the passage of H+ while the inner membrane does not.  Mitochondria require H+ concentration gradients to produce ATP; i.e. high concentrations of  of H+ in the intermembrane space and low H+ within the mitochondrial matrix.  

The H+ being pumped outside the mitochondrial matrix leads to increased H+ within the intermembrane space, due to its high permeability.  This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP and inorganic phosphate, Pi.

Further Explanation:

During respiration in the mitochondria, oxidative phosphorylation occurs. This  describes a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain the energy they release is used in pumping protons out of the matrix of the mitochondria.

This forms a gradient where there is a differential in the number of protons on either side of the membrane the protons flow or re-enter the matrix through the enzyme ATP synthase, which makes the energy storage molecules of ATP from the reduction of ADP. At the end of the electron transport, three molecules of oxygen accept electrons and protons to form molecules of water.

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Final answer:

The electron transport chain pumps H+ ions across the mitochondrial membrane using energy from high-energy electrons, creating an electrochemical gradient used to drive ATP synthesis through a process called chemiosmosis.

Explanation:

The electron transport chain in mitochondria plays a pivotal role in cellular respiration by using the energy from high-energy electrons to pump H+ ions across the inner mitochondrial membrane. This process creates an electrochemical gradient, which is essential for ATP synthesis. High-energy electrons are donated by NADH and FADH2 and move through a series of protein complexes within the inner membrane. As electrons pass through the electron transport chain, they go from a higher to a lower energy state, which releases energy used to transport H+ ions against their concentration gradient from the mitochondrial matrix to the intermembrane space.

The accumulation of H+ ions in the intermembrane space generates a significant electrochemical gradient, comparable to water pressure behind a dam. This gradient represents stored energy that, when released through ATP synthase, an integral membrane protein complex, drives the synthesis of ATP. This diffusion of H+ through ATP synthase down their concentration gradient and the associated production of ATP is known as chemiosmosis.

They show all or part of earth.

Explanation:

Maps are the pictorial representation of earth. The people who draw maps are called cartographers and the maps are represented usually as 2D images.  A map of earth gives an idea about the differences in sizes of the countries of the world and various geographical features.

A map usually uses a scale which gives an idea about the relationship between distances on the map and actual distance on earth. Scales can be of different types like verbal scale, representative fraction, graphic scale etc.

Answer:

They show all or part of Earth.

They use symbols to represent land features.

They correspond to distances on Earth using a scale.

Explanation:

I was just on this question and this is what I got for my work.

Answer:

A. the separation of the genetic material of a cell into two completely identical sets, one for each of the daughter cells created during cell division

Answer:

the answer is A

Explanation:

Answer:

By experimentation and observation

Answer AND Explanation:

Mitochondria, often known as the 'powerhouse' of the cell, generate most of the cell's supply of adenosine triphosphate (ATP), essentially the cell's energy currency. This is achieved through a process known as cellular respiration which involves the breakdown of glucose into molecules of ATP. The process comprises three steps namely glycolysis, Krebs Cycle/Citric Acid Cycle, and Electron transport chain.

The mitochondria are often described as the 'powerhouse' of the cell, responsible for creating most of the cell’s supply of adenosine triphosphate (ATP), which is essentially the cell’s 'energy currency'. Energy is produced in the mitochondria through a process called cellular respiration. This process involves breaking down glucose from the food we eat into molecules of ATP.

The process is broken down into three steps:

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Answer:

Archaeologist.

Explanation:

I believe this is the only on of the four that deals with post-mortem study of bones, other than a forensic odontologist, who studies teeth and bitemarks, but not bones in general.

Answer:

an osteologist

Explanation:

Osteology is the science that studies the bones and the skeletal system as a whole. The osteologist is the professional responsible for this science and is able to use bones to help provide physical information about the deceased.

This is because the number of bones in a body can provide information about an individual's age, health and physical condition, which can generate many important changes.

Answer:

carbohydrates.

lipids.

proteins.

nucleic acids.

Explanation: Carbohydrates are the most abundant biomolecule on Earth. Living organisms use carbohydrates as accessible energy to fuel cellular reactions and for structural support inside cell walls. Cells attach carbohydrate molecules to proteins and lipids, modifying structures to enhance functionality.