The Punnett square below shows the genotypes of Amelia's parents. R alpha If R represents the dominant gene for straight hair and r represents the recessive gene for curly hair , which statement best explains how Amelia was born with curly hair ?

Answer:

During interphase (1), chromatin is in its least condensed state and appears loosely distributed throughout the nucleus. Chromatin condensation begins during prophase (2) and chromosomes become visible. Chromosomes remain condensed throughout the various stages of mitosis (2-5).

Explanation:

Source that would be reliable and credible:

Articles written by respected author

article contains citation

article expresses their opinion on the subject

article  based on the strong evidence

website registered by government/educational institution.

Source that would not be reliable and credible:

Article is only found on social media.

The article marked as an advisement

author/publisher/organization of article missing

The article includes more than one perspective on the issues

sources are missing

A credible source is one that is written by someone who is an expert in their field and is free of errors and biases. This guide explains the difference between reliable, scientific and peer-reviewed sources.

Primary, secondary and tertiary sources provide different types of information.

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Explanation:

The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases. ... The absorbed energy warms the atmosphere and the surface of the Earth.

Lymphatic tissue is not involved in blood cell formation.

Some tissues and organs create, store, and transport white blood cells, which fight infections and other diseases. This system consists of the lymphatic veins, lymph nodes, spleen, and bone marrow (a network of thin tubes that carry lymph and white blood cells).

Stem cells make up bone marrow. Red bone marrow, which produces blood cells and platelets for your blood, is made by these stem cells. Most of the fat and stem cells in yellow bone marrow are responsible for your body's production of bone and cartilage.

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Answer:

Explanation:

vPoint Source - a source of water discharged to surface water through a discrete point - generally through a pipe, ditch, or channel.

Nonpoint Source - Nonpoint sources, such as parking lots or athletic fields, discharge runoff water to groundwater or surface water; runoff does not come from  a pipe, ditch, or channel. These sources may contain pollutants such as pesticides, motor oil, and soaps.

Navigable Waters of the United States  For the purposes of the Clean Water Act, the term "navigable waters" includes:

all waters used in commerce, including groundwater;

all interstate waters including wetlands, mudflats, and sand-flats; and

all other waters such as lakes, rivers, streams, wetlands and sloughs.

EPA policy states, "The majority of facilities in the U.S. have the potential to discharge to navigable waters."  The Supreme Court decision in (2006) requires the Army Corps of Engineers and the EPA to determine whether there is a "significant nexus" between a navigable waterway and an area a spill might affect.  In June of 2007, EPA and the Army Corps of Engineers released provisional interpretive guidance regarding the "significant nexus” question. According to this guidance, the agencies will assert jurisdiction over traditional navigable waters, wetlands adjacent thereto, and relatively permanent tributaries thereof. The agencies will generally not assert jurisdiction over swales and ditches that lack routine water flow. Finally, the agencies will apply the "significant nexus" requirement and make a case-by-case, fact-specific analysis on impermanent tributaries and other wetlands.

Additional executive orders were issued 2015 in 2019.  Under the 2019 proposal, traditional navigable waters, tributaries to those waters, certain ditches, certain lakes and ponds, impoundments of jurisdictional waters, and wetlands adjacent to jurisdictional waters would be federally regulated. It also details what are not "waters of the United States," such as features that only contain water during or in response to rainfall (e.g., ephemeral features); groundwater; many ditches, including most roadside or farm ditches; prior converted cropland; stormwater control features; and waste treatment systems.

Could the requirement for one or more NPDES Discharge Permit apply to my campus?

If your campus discharges pollutants directly to navigable waters of the United States through a point source, you must obtain an NPDES permit or redirect the flow of the waste.

Stormwater releases from certain activities require an NPDES permit. The most common activities on college campuses requiring NPDES permits for stormwater are construction activities disturbing more than 1 acre, hazardous waste storage areas operating under the Resource Conservation and Recovery Act permit system, steam-generating power plants, and airports. See Stormwater section below.

Regulations issued by local water authorities, or Publicly Owned Treatment Works (POTWs), not NPDES permits, govern discharges into sanitary sewer systems. See Sewer Use (POTW) section below for more information about requirements for using POTWs for commercial or industrial waste disposal.

What do I have to do related to NPDES Discharge Permits?

Determine where wastewater flows from buildings and processes on your campus. Any industrial or commercial operation (e.g., ice rink melt pits, floor drains, and vehicle wash stations) that discharge into a water of the United States may require an NPDES permit. If required, you must obtain such a permit from the appropriate regulatory agency, probably your state environmental agency.

French drains, dry wells, and septic system leach fields are different from point source discharges because they do not immediately affect surface water. Some state and federal environmental agencies manage these systems under the Underground Injection Control program, part of the Safe Drinking Water Act. See Safe Drinking Water Act for more information.

Details of NPDES

In the practice of science, hypothesis testing is used to develop explanations, acknowledging the possibility of alternative, more accurate explanations.

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Answer:

there is a major diff between birds and mammals in the female reproductive system as birds produce large yolk-filled eggs. The precursors of the yolk r synthesized by the liver. Another diff is that there is a single ovary and oviduct in bird

Explanation:

Answer:

The difference is the female reproductive system as birds produce large yolk filled eggs

Solution:

Monosaccharide:

Monosaccharides are the simplest carbohydrates. This means that they do not hydrolyze, or in other words, they do not break down into other simpler compounds. Its empirical formula is

now, two examples of these types of molecules would be:

1. The 5-carbon monosaccharides, also called pentoses. An example of this type of monosaccharides would be D-Ribose.

2. The 3-carbon monosaccharides, also called trioses. An example of this class of monosaccharides would be D-Glyceraldehyde.

Disaccharides and Polysaccharides:

The disaccharides and polysaccharides are all constructed from monosaccharides that are covalently bonded together by condensation reactions that form glycosidic linkages.

One such linkage between two monosaccharides forms a disaccharide and Polysaccharides are giant polymers of monosaccharides connected by glycosidic linkages.

Now, two examples of disaccharides would be:

1. a molecule of sucrose: formed from a glucose molecule and a

fructose molecule.

2. a molecule of lactose: formed from glucose and galactose.

On the other hand, two examples of polysaccharides would be:

1. Glycogen: a highly branched polysaccharide of glucose.

2. Cellulose is also a polysaccharide of glucose, but its individual monosaccharides are connected by β-glycosidic linkages.

From the analysis of the 2 equations: X = 3/4 and Y = 5/4

The equations can be solved using subtracting one of the two equations from the other.

Let's label the two equations:

Y=3x-1 .................... equation 1

Y=2-X..................... equation 2

Equation 2 can be rearranged such that:

Y = -X+2

Subtracting equation 2 from 1:

Y=3x-1

Y = -X+2

0 = 4X -3

4X = 3

  X = 3/4

Substitute X = 3/4 into any of equations 1 or 2 to determine Y.

Y = 3(3/4) - 1

   = 9/4 - 1

    = 5/4

Hence X = 3/4 and Y = 5/4

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Biology

refers to the study of all the living organisms which have existed on the Earth.

The study of biology has a very vast syllabus regarding the study point of view. The study of biology refers to the process of

studying various organisms

present on Earth. It not only includes

living beings

but

non

-

living beings

also such as

fossils

etc.

At last, we can say that if there is no study of biology then it is not possible to study the

behavior

,

needs

, and

environment

in which they are very suitable for living. All these points clearly define the importance of the study of biology. Biology is the main process through which we are able to identify

different species

present on the Earth.

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The complete question should be: what do you mean by the study of biology?

Answer:

Prokaryotes are made out of cells that lack a membrane-bound nucleus and lack specialized organelles. Plants, animals, and fungi are eukaryotic organisms while bacteria and archaea are prokaryotic organisms. The main difference between prokaryotes and eukaryotes comes down to the basic structure of the cell.

Consumption rate is one of the factors above that helps determine the fertility rate of a group of people

Option D

Answer:

completely different, 0.1% different.

Explanation:

in meiosis, the cell splits into 4 geneticly different daughter cells. The placement of the DNA is what makes them different.

I hope that

Answer:

A mutation is simply an error in the copying of DNA it generally does not have major effects. Mutations are changes in the DNA sequence.  

Tumors form by an uncontrolled error in a stage of mitosis that continue to generate cells that aren't correct and eventually lead to tumors.

Explanation:

This is incorrect because not all mutations results in tumor or

development of a major body defect.

Mutation refers to the changes or alterations which occur in the

nucleotide sequence of a DNA.

AA major body defect only occurs if the change in DNA affects a particular

structure or function of the part involved. Tumor on the other hand is

formed when uncontrolled errors in mitosis during growth and

replacement of tissues.  

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Here is the answer but not complete i forgot the ribosome diagram

But I hope it helps

Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.

Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.

Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.

Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.

Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.

Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.

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Most articles pass right through the atom, this means that most of the atom is an empty space.

An atom is described as a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons.

Protons and neutrons make up the core nucleus of an atom, which is encircled by an electron cloud. In relation to the size of the atom as a whole, the nucleus is exceedingly small.

As a result, the electrons surrounding the nucleus are the primary target of interactions when particles or even light pass through an atom. The majority of the atom's remaining space, which includes the nucleus, is vacant.

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When a stem cell differentiates and changes in size and shape, specific genes are being (d) expressed.

Gene expression is the process by which genetic data travels from genes (DNA) to RNA and proteins. Genes are initially translated into messenger RNAs (mRNAs) during differentiation, and then these mRNAs are translated into proteins.

A DNA segment known as a "gene" serves as a template for the production of an mRNA in the cell nucleus during the process of gene transcription.

After that, this mRNA moves to the cytoplasm where it is translated into a protein by using it as a template. In conclusion, some genes are expressed when a stem cell develops and alters in size and structure.

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Answer: yes atom is the smallest level of organization

Explanation:

Answer:

d

Explanation:

science depends on facts. no guessing, no predictions

Answer: D

Explanation:

The palms open at the ventral side, and the back of the hand is the dorsal side. The dorsal and ventral sides are the two sides of the frontal plane.

Answer:

Passive transport uses the kinetic energy and natural entropy of molecules moving down a gradient. While active transport uses cellular energy to move against a gradient.

Answer:

The second law of thermodynamics

Explanation:

Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes. Instead of using cellular energy, like active transport, passive transport relies on the second law of thermodynamics to drive the movement of substances across cell membranes.

Prokaryotes include bacteria. Thus, the correct option is C.

Prokaryotes may be defined as a microscopic single-celled organism that lacks a well-defined nucleus and other membrane-bound cell organelles.

Protozoans are eukaryotic in nature.  Unicellular algae are also classified under the category of eukaryotes.

Fungi are non-photosynthetic organisms that belong to the group of eukaryotic organisms.

Therefore, the correct option for this question is C.

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Archaea and eubacteria are primarily different in their genetic and biochemical characteristics.

While both archaea and eubacteria are single-celled microorganisms, they exhibit distinct differences in their genetic makeup, cell membrane structure, and metabolic processes. Here are some primary differences between the two:

1. Genetic Makeup: Archaea have unique genetic sequences that differ from both eubacteria and eukaryotes. They possess genes and genetic machinery that are distinct from other organisms, making them a separate domain of life.

2. Cell Membrane Composition: Archaea have cell membranes composed of unique lipids called isoprenoids, which are different from the fatty acid-based lipids found in eubacteria and eukaryotes. This structural difference allows archaea to thrive in extreme environments, such as hot springs and acidic environments.

3. Metabolic Processes: Archaea exhibit diverse metabolic pathways and can utilize a wide range of energy sources, including methane, sulfur, and even sunlight. Eubacteria, on the other hand, encompasses a broader range of metabolic diversity and can be found in various environments, including soil, water, and living organisms.

Regarding the second part of your statement, archaea and eubacteria are not considered ancestors of protists and first eukaryotes. The origin of eukaryotes is still an area of scientific inquiry and debate. However, current scientific understanding suggests that eukaryotes likely evolved from a symbiotic relationship between prokaryotic cells, including both archaea and eubacteria, giving rise to complex cellular structures and internal compartments. This process is known as endosymbiotic theory. Protists, which are a diverse group of eukaryotic microorganisms, likely evolved later in the course of evolution.

First of all, the problem says that the membrane is selectively permeable.

Permeable means that it allows molecules to pass from one side to another (and vice-versa).

On the other hand, we have the concept of selectively, which means that not all types of molecules are allowed to cross through the membrane, but in this case, it also says that the membrane it's permeable for both molecules.

So, in this case:

27) Yes, in order to reach the equilibrium, the molecules will move, until there is an equal amount of each of them on both sides of the membrane.

28) The important thing here is not how many molecules of each type you draw on each side, but the amount of them should be the same on both sides. Take into count that we are not having in count the interaction between the molecules either.

29) Yes the will, because of the permeable property of the membrane. This is the reason why this equilibrium it's called a dynamic equilibrium.

The table is most likely to be comparing a community and an ecosystem. Thus, option B is correct.

When biotic and abiotic components are linked together by energy flow and through nutrient cycle it is called as an ecosystem. Ecosystem consist of the organisms and the physical environment they interact.

A community is said to be group of one or more species interacting in  the same geographical area at the same time. It is also known as biotic community or biological community.

Therefore, observation 1 shows community and observation 2 shows an ecosystem and option B is correct.

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Habitat 1: Forest

Species observed:

Eastern gray squirrel (Sciurus carolinensis)

White-tailed deer (Odocoileus virginianus)

Red-tailed hawk (Buteo jamaicensis)

Genetic variation observed:

The Eastern gray squirrels had variation in their fur color, with some individuals having darker or lighter shades of gray.

The White-tailed deer had variation in their antler size and shape, with some individuals having larger or more branched antlers than others.

The Red-tailed hawk had variation in their feather coloration, with some individuals having darker or lighter shades of red on their tails.

Negative impacts on the habitat:

Deforestation and habitat loss due to human activities such as logging and urban development can negatively impact the forest habitat of these species.

Pollution, including air and water pollution, can also negatively impact the health of the forest ecosystem and the species that depend on it.

Habitat 2: Coral reef

Species observed:

Clownfish (Amphiprioninae)

Blue tang (Paracanthurus hepatus)

Green sea turtle (Chelonia mydas)

Genetic variation observed:

The Clownfish had variation in their coloration, with some individuals having brighter or darker stripes than others.

The Blue tang had variation in their fin shape, with some individuals having longer or more pointed fins than others.

The Green sea turtle had variation in their shell pattern, with some individuals having more or fewer scutes (the bony plates that make up their shell).

Negative impacts on the habitat:

Climate change and ocean acidification can negatively impact the health of coral reefs, which in turn can affect the species that depend on them.

Overfishing and destructive fishing practices can also damage coral reefs and reduce the populations of fish and other species that depend on them.

Answer:east

Explanation:

Polar easterlies are dry, cold prevailing winds that blow from the east. They emanate from the polar highs, areas of high pressure around the North and South Poles. Polar easterlies flow to low-pressure areas in sub-polar regions. Westerlies are prevailing winds that blow from the west at midlatitudes