the selenium level in a food is tightly associated with multiple choice oxygen exposure. fortification of the food. selenium content of the soil. fortification of the feed provided to animals.

The first stage of sleep is defined as the period between wakefulness and sleep, and it is characterized by a decrease in brain activity and muscle tone.

The body's typical state during the first stage of sleep includes a decrease in muscle tone, a slowing of brain waves, and a decrease in eye movement. During this stage, the brain waves are generally alpha waves, which are slower than those that occur during wakefulness, but faster than those that occur during deeper stages of sleep.The first stage of sleep is often referred to as light sleep because it is easy to be awakened from this stage.

It usually lasts for about 5-10 minutes, and during this time, the body's temperature begins to decrease, and the heart rate and breathing rate begin to slow down. In addition to these changes, the body may also experience other physiological changes, such as a decrease in blood pressure and a decrease in the production of stress hormones.

The first stage of sleep is an important part of the sleep cycle because it is the stage that helps to prepare the body for deeper stages of sleep. During this stage, the body begins to relax, and the mind begins to slow down. This allows the body to enter deeper stages of sleep, where the brain waves slow down even further, and the body's muscles become even more relaxed. Overall, the first stage of sleep is an important part of the sleep cycle, and it is necessary for the body to enter deeper stages of sleep so that it can rest and rejuvenate.

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1. The characteristic that is not shared by ALL cells is "Have internal, membrane-bound compartments." .2. The structure that contains the thylakoid membranes is Chloroplasts

Explanation:Cells come in all shapes and sizes, but they all have a few things in common. For example, they all have a cell membrane that separates them from the surrounding environment. They also have cytoplasm, which is a fluid-like substance that fills the inside of the cell.

Additionally, they all have DNA, the genetic material that controls the cell's activities. While all cells share these characteristics, they do not all have internal, membrane-bound compartments. For example, bacteria are a type of cell that lacks these compartments.

2. The structure that contains the thylakoid membranes is Chloroplasts. Explanation: Chloroplasts are organelles found in plant cells that are responsible for photosynthesis. They contain a complex system of membranes called thylakoids, which are arranged in stacks called grana.

These membranes are the site of photosynthesis, the process by which plants convert sunlight into energy. The other options in the question do not contain thylakoid membranes.

The nucleus contains DNA, lysosomes contain enzymes that break down waste products, and mitochondria are the site of cellular respiration.

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The energy provided by ATP is driven by the breakdown of glucose molecules. Thus, option D is correct.

ATP or Adenosine triphosphate is the energy molecule that is able to provide energy to the body.  Varying pathways and cycles in the cell produce ATP.

ATP production is carried out in the degradation of the complex molecules by the cell. The cycle is operated primarily in the cell for the production of ATP in glycolysis.

The ATP is produced in the glycolysis cycle with the breakdown of glucose molecules. Thus, option D is correct.

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Answer:

Interphase

Explanation:

The correct answer would be the interphase stage of the cell cycle.

The interphase stage of the cell cycle is characterized by loose nuclear materials when viewed under the microscope. It is the stage that precedes the active cell division stage during which the cell grows in volume and cellular nuclear contents such DNA, proteins, other precursors are synthesized.

Answer:

The answer is option D

Hope this helps.

The answer is D.Introducing traits into organisms

I did the test and I got it correct :)

Answer:

water

Explanation:

water and other dissolve material are transported in the xylem of a plant

The Golgi apparatus puts finishing touches on proteins synthesized at the endoplasmic reticulum and packages them for export out of the cell.

The Golgi apparatus is a complex organelle consisting of flattened sacs called cisternae. It is involved in the sorting, modification, and packaging of proteins and lipids for transport to their final destinations. The Golgi receives newly synthesized proteins from the endoplasmic reticulum and modifies them by adding or removing sugars, lipids, or phosphate groups. It then sorts the modified proteins and packages them into vesicles for transport to their final destinations, such as the plasma membrane or extracellular space. The Golgi apparatus puts finishing touches on proteins synthesized at the endoplasmic reticulum and packages them for export out of the cell.

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Answer:

100 %

Explanation:

Dominance is a genetic phenomenon where a gene variant or allele masks the effects of another allele (of the same gene) in heterozygous individuals. This last gene variant is referred to as the recessive allele. In this case, the silkworm mother can produce only one type of gamete carrying the dominant gene (B) form, while the silkworm father can produce only one type of gamete carrying the recessive gene (b) form. In consequence, from this cross, all offspring (100 %) will be heterozygous (Bb) and therefore they will express the dominant trait (i.e., yellow cocoon).

1.  Replicated DNA code will be: TAA CGTGAT;  2. mRNA codons are therefore: UAA CGU GAU ; 3. tRNA anticodons are: AUU CGC CUA; 4. Amino acid sequence is: Stop - Arg - Asp

Sequence of three consecutive nucleotides in DNA or RNA molecule that codes for specific amino acid is called as codon.

Assuming the original DNA code is the template strand, the replicated DNA code will be:

TAA CGTGAT

To determine the mRNA codons, we need to transcribe DNA code into mRNA by replacing T with U: UAA CGUGAU

mRNA codons are therefore: UAA CGU GAU

The anticodon for UAA is AUU, which pairs with the codon UAA via complementary base pairing. The anticodon for CGU is GCA, which pairs with the codon CGU via complementary base pairing. The anticodon for GAU is CUA, which pairs with the codon GAU via complementary base pairing.

Therefore, tRNA anticodons are: AUU CGC CUA

To determine the amino acid sequence, we need to use genetic code to translate the mRNA codons into their corresponding amino acids.

UAA = Stop codon

CGU = Arginine (Arg)

GAU = Aspartic acid (Asp)

Therefore, amino acid sequence is: Stop - Arg - Asp

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Phloem  transports the food which formed in leaves during photosynthesis .

The many components of phloem include companion cells , seive tubes , phloem parenchyma and phloem fibres . Sugar and nutrients are moved up and down the plant's seive cells using sieve tubes. Companion cells  manage the seive tube's Operation. Phloem parenchyma gives the plant its mechanical sturdiness.

The phloem sclerenchyma is comprised of sclerenchyma cells that are rather associate with providing mechanical support than conducting materials. It includes the phloem fibres and the sclereids.  

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Slow exhaust time setting is the response which is not associated with the successful use of a liquid disinfectant for the inactivation of a biohazard.

This is referred to a chemical substance which destroys or inactivates microbes on surfaces etc.

Its action is usually very fast and it having a slow response means its use wasn't a successful one as damages may have been done already.

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Answer:

Cells

Explanation:

Viruses attack the body's cells in order to weaken the body ._.

nonhuman primates cannot communicate vocally about absent or nonexistent objects or past or future events. thus, their call systems lack the linguistic design feature of displacement

Nonhuman primates are a group of mammals that includes both simians (monkeys and apes) and prosimians (lemurs). Monkeys and apes lack neural control over their vocal tract muscles, preventing them from being properly configured for speech.

Nonhuman primates use odors, vocalizations, gestures, and facial expressions to communicate their psychological state and current concerns to others.

Some researchers have attempted to teach apes to communicate. Apes cannot speak because of the structure of their vocal organs, but they can interact using signs or computers. Apes can request changes, answer questions, and follow directions using these methods.

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The class of macromolecules that consumes the most energy for biosynthesis are proteins. Proteins are composed of long chains of amino acids, which require energy to be synthesized and assembled in the correct order.

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Answer:adaptions

Explanation:

Answer:

Hope the above picture might help you :)

Answer:

A root hair, or absorbent hair, the rhizoid of a vascular plant, is a tubular outgrowth of a trichoblast, a hair-forming cell on the epidermis of a plant root. ... Plants absorb water from the soil by osmosis. Root hair cells are adapted for this by having a large surface area to speed up osmosis.

Explanation:

There is a picture too.

Answer:

C

Explanation:

The possible genotype of his father is \(X^RY\) and \(X^rY\).

For sex-linked traits, an affected man always inherit the affected allele from the mother. The other chromosome, which is the Y chromosome is always from the father and this confers maleness on individuals.

The father of a man affected for a sex-linked trait can be affected for the same trait or otherwise. It does not have any bearing on the male child since the father only donates the Y chromosome to the male child.

Hence, in this case, the father can either be affected for the same trait (\(X^RY\)) or be free from it (\(X^rY\)).

The correct option is C.

Answer:

*Food preservation increases the shelf life of food.

*Food preservation increases the food supply.

*it's safe to eat food after a long time after preservation

Explanation:

hope it helps

Answer:

Sound waves are refracted when they enter water after traveling through the air.

Explanation:

I had to report the other answer because it was so CONFUSING AND was NOT applicable

The best explanation of the difficulty for Jerome to understand Pablo is because after passing through the air and into the water, sound waves are bent.

Due to the mechanical differences between water and air, sound travels through water at a speed of 1500 meters per second compared to 340 meters per second in air.

In some areas of the ocean, the temperature has a significant impact on sound speed because, for example, sound travels more quickly in warm water than in cold water.

The distance that sound waves travel is mostly influenced by the temperature and pressure of the ocean, even though sound travels through water at a far faster rate than it does through air.

Therefore, the greatest reason why Jerome has trouble understanding Pablo is that sound waves are bent as they travel through the air and into the water.

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The cardiovascular, digestive and endocrine systems, has the system of the glands that has been that secrete the hormones that has been directly just into the main bloodstream.

A circulatory system has been defined as the system in the body that has been consists of the heart, blood vessels, arteries, veins and blood that all combined together to supply blood to all the parts of the body and takes up waste material from it.

Circulatory system have been four major components and these are heart, veins, arteries, and blood. These are the four components that combined and form cardiovascular system.

Therefore, The cardiovascular, digestive and endocrine systems, has the system of the glands that has been that secrete the hormones that has been directly just into the main bloodstream.

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Answer:

32 genotypes

Explanation:

The number of different possible gametes produced by the diploid genotype (AaBbCcDdEe) is 2 x 2 x 2 x 2 x 2 = 32 (2 for each pair of heterozygous genes).

For a single nucleotide polymorphism (snp) with three alleles, 3 different diploid genotypes are possible.

Single nucleotide polymorphism or single nucleotide polymorphism in genetics (SNP) is a variation in the DNA sequence that affects only one base (adenine (A), thymine (T), cytosine (C) or guanine (G)) in the genome sequence between individuals of a species or between pairs of chromosomes of an individual.

For example, two individuals may have DNA sequence fragments that differ by only one nucleotide GGGG(C)CG and GGGG(T)CG, and then two alleles are said to exist: C and T . Therefore, SNPs are biallelic markers and may be tri-allelic.

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Answer:

Jjsojbwjhwbhujwnveuuevcahij1koabbwoapajbwivwccaihbwoshbw

Explanation:

Nwjsbisbeksbwvwihwwowjv2iahwvwiwvwjsvaiwvwiwhvw fubwbwibwkckjwkjwkbwjqj

It is true that doctors can use a patient's skin appearance to help make a diagnosis, as the skin can show signs of various medical conditions.

For a doctor, simply looking at a patient's skin can indeed help in making a diagnosis.

The skin can reveal signs of various illnesses or conditions, such as rashes, discoloration, or lesions, which can be indicative of underlying health issues.

By visually examining the skin, a doctor can gather important information to aid in diagnosing and treating the patient.

Looking at a patient's skin can provide clues, but it is not enough to make a diagnosis without additional information and testing.

Summary: It is true that doctors can use a patient's skin appearance to help make a diagnosis, as the skin can show signs of various medical conditions.

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The nucleus of an atom describes option A. It is the most massive part of an atom.

The nucleus is the central part of an atom and is composed of protons and neutrons. Protons have a positive charge, while neutrons have no charge (they are neutral). Electrons, on the other hand, are negatively charged particles that orbit the nucleus in electron shells. The nucleus is incredibly small compared to the overall size of the atom, but it contains most of the atom's mass.

The protons and neutrons within the nucleus contribute to the mass of the atom, while the electrons have a negligible mass in comparison. The mass of an atom is determined by the total number of protons and neutrons in the nucleus. Protons and neutrons have roughly the same mass, and their combined mass gives the atom its atomic mass.

Electrons, though they have mass, contribute very little to the overall mass of the atom. The nucleus also plays a critical role in determining the chemical properties and behavior of an atom. The number of protons in the nucleus determines the atomic number, which defines the element and its unique properties. Therefore, the correct answer is option A.

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The correct option is presence of plasmids. The feature that is not typically associated with eukaryotic DNA is the presence of plasmids.

Eukaryotic DNA is primarily organized into chromosomes, which are large structures that contain the genetic material of the cell. Chromosomes are found within the nucleus of eukaryotic cells and carry a vast amount of genetic information. They play a crucial role in storing and transmitting genetic material during cell division. In contrast, plasmids are small, circular DNA molecules that are commonly found in prokaryotic cells, such as bacteria. Plasmids are distinct from chromosomes and often carry additional genetic information that can confer certain advantages to the host cell, such as antibiotic resistance or the ability to produce specific enzymes. However, plasmids are not typically a feature of eukaryotic DNA.

Furthermore, eukaryotic DNA generally contains multiple origins of replication rather than a single origin. The origin of replication is a specific DNA sequence where the replication process begins. Eukaryotic DNA is often large and complex, requiring multiple origins of replication to ensure efficient and accurate replication of the entire genome.

Therefore, eukaryotic DNA is characterized by the presence of chromosomes and multiple origins of replication, it does not typically include plasmids. Plasmids are more commonly associated with prokaryotic cells and are not a common feature of eukaryotic DNA.

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Answer: I think the answer is C

Explanation:

Answer:

D

Explanation:

Just got the answer right