In blood there is a lower concentration of O2 that in the atmosphere, but a higher concentration of CO2, so that these gases can diffuse down their concentration gradients. True or False?

The order is False.

In Ectotherms, decrease in ambient temperature causes body temperature to decrease, that causes a decrease in Metabolic rate.

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There would be a total of 14 hydrogen bonds that would form between the given DNA sequence "ATAGAC" and its complementary strand in a double helix.

In DNA, the complementary base pairing rules state that adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C). Therefore, to determine the number of hydrogen bonds that would form between the given DNA sequence "ATAGAC" and its complementary strand, we need to identify the complementary bases.

The complementary bases for each nucleotide in the given sequence would be;

A-T

T-A

A-T

G-C

A-T

C-G

Each A-T base pair forms two hydrogen bonds, and each G-C base pair forms three hydrogen bonds. Therefore, to calculate the total number of hydrogen bonds, we sum the number of bonds for each base pair:

(2 hydrogen bonds for A-T) + (2 hydrogen bonds for T-A) + (2 hydrogen bonds for A-T) + (3 hydrogen bonds for G-C) + (2 hydrogen bonds for A-T) + (3 hydrogen bonds for C-G) = 14 hydrogen bonds.

Therefore, total of 14 hydrogen bonds that would form between the given DNA sequence "ATAGAC".

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Out of the given options A. trans fats increase the risk of heart attack the most.

Trans fat, also known as trans-unsaturated fatty acids, represents an unsaturated fat that is generally found in food. Trans fats are present in trace levels in certain naturally occurring foods, but they are abundant in other processed meals. Margarine sticks, snack items, baked products, and fried dishes consist of these fats. When hydrogen atoms are added to vegetable oils, trans fats are produced.

Because they are known to raise bad cholesterol levels while lowering good cholesterol levels in the body, heart disorders are known to increase the likelihood of developing them. Their intake should be avoided to the greatest extent feasible. Additionally linked to heart disease, saturated fats must be ingested in moderation. Monounsaturated and polyunsaturated fats, on the other hand, are regarded as heart-friendly fats and may be consumed in a balanced diet.

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Answer:

New moon

Explanation:

A solar eclipse can only occur during New Moon (when the entire moon is covered in darkness and not visible from the earth's surface.) A total solar eclipse can be seen within the moon's dark inner shadow (called the umbra.) A partial solar eclipse can be observed within the earth's lighter outer shadow (called the penumbra).

Answer:

5.7 m/s     

Explanation:

The computation of Sheila 's velocity right after she gets thrown out of the bike is shown below:

1) The Physical principle: conservation of momentum.

If there is no net external force operating on a system, so the system's total momentum is conserved

The momentum, p, is a vector magnitude that is determined as the product of the mass by the velocity:

P = mv.

2) Taking into account therefore that there is no net force on the device, Sheila and the momentum of the bike are the identical pre and post collision.

Based on this, the calculation is as follows

Momentum before the collision:

       \(P_1 = (mass\ of\ Sheila + mass\ of\ the\ bike) \times velocity\)

       \(P_1 = (60kg + m) \times v_1\)

= 340 kg m/s

Now Momentum after the collision:

      \(P_2 = mass\ of\ sheila \times velocity\ of\ Sheila + mass\ of\ the\ bike \times velocity\ of\ the\ bike\)

\(P_2 = 60kg \times v_2 + m \times 0 = 60kg \times v_2\)

\(P_1 = P_2\)

\(= (60kg + m) \times v_1\)

\(= 60kg \times v_2\)

\(= 340 kg .\ m/s\)

\(= 60kg \times v_2\)

\(v_2 = \frac{340\ kg .\ m/s }{60\ kg}\)

= 5.7 m/s     

The velocity of Sheila immediately after she is thrown from the bike is 5.67 m/s.

The given parameters;

The velocity of Sheila immediately after she is thrown from the bike is calculated as follows;

P = mv

where;

v is the velocity Sheila

\(v = \frac{P}{m} \\\\v = \frac{340}{60} \\\\v = 5.67 \ m/s\)

Thus, the velocity of Sheila immediately after she is thrown from the bike is 5.67 m/s.

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Answer:

Genes are basically what makes us look the way we do or something like that. They are made up of DNA. Your genes sort of tells your cells to make molecules called proteins, which help your body function. Your genes also carry information that determines your traits which goes back to what I said about them making up the way you look. Your genes are basically like a cookbook recipe for DNA. Genes tell your cells what to do and when to do it. They are sometimes called "blueprint for life."

Explanation: That's all I got.....Hope this helps!!!

Answer:

10

Explanation:

Your body can't produce the ten necessary amino acids and must acquire them from your diet.

The body does not manufacture essential amino acids and must be supplied by food. They don't need to take one meal at a time. The equilibrium is more significant during the day.

The body produces nonessential amino acids from essential amino acids or from the natural degradation of proteins.

Answer:

10

Explanation:

i took the test

During puberty, hormones play essencial roles in the body and processes of growing up. If during that age a girl`s body is unable to produce estrogen or progesterone, it means that a few events won`t happen. One of them is the menstrual cycle. Both estrogen and progesteron work together for the maturation of oocytes, and in the lack of estrogen and progesteron, the girl wouldn`t be fertile, and besides that, the changes that the endometrium has to go through during the period wouldn`t occur. Also, changes in the body such as breast growth and hip enlargement will also be hampered, because they are associated to those hormones as well. In the case of a boy`s body being unable to produce testosterone, the sperm production would be affected, and the boy would be infertile. Other processes like hair and genital growth, muscle gain and voice deepening would be negatively affected.

We have that the the Benedict's reagent is used to detect the presence of simple sugars

Generally the test for sugar is detected by the turn from turquoise to yellow or orange when i contact with carbohydrates

This is the Benedict's reagent

Therefore

The Benedict's reagent is used to detect the presence of simple sugars

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The structure of DNA determines the structure of proteins because proteins are made by the central dogma process where DNA is the initial component.

In the process of the central dogma, transcription is the process through which the DNA is transcribed into the mRNA. Through the information in the mRNA, proteins are produced by the translation process.

Hence, the structure of proteins as well its function etc are all determined by the DNA whose information is transcribed and translated for the formation of that particular protein.

Each protein formed from the transcription and translation of DNA has a specialized function to perform.

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Answer:

it can travel in material medium but it can't travel in vaccum

The correct answer is A. desmosome. Desmosomes are specialized cell junctions that bind cells to other cells and provide mechanical strength to tissues. They are particularly important in tissues that experience mechanical stress, such as skin and heart muscle. Desmosomes are composed of transmembrane proteins that link cells together and are connected to intermediate filaments made of keratin. This arrangement allows the desmosome to resist mechanical forces and maintain tissue integrity. Tight junctions and adherens junctions are also cell junctions that bind cells together, but they are not linked to keratin intermediate filaments. Hemidesmosomes, on the other hand, bind cells to the extracellular matrix and are not involved in cell-to-cell adhesion.

A. Desmosome. Desmosomes are specialized cell junctions that bind one cell to another cell and are linked to keratin intermediate filaments. These junctions play a crucial role in maintaining the structural integrity and strength of tissues, as they provide resistance to mechanical stress. In comparison, tight junctions (B) seal adjacent cells together, creating a barrier to prevent the passage of molecules, whereas adherens junctions (C) provide adhesion between cells through actin filaments. Lastly, hemidesmosomes (D) connect cells to the extracellular matrix rather than to other cells.

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just ask ur teacher she or he will tell u

Answer:

a

Explanation:

Your brain begins to grow rapidly at 7 weeks.

The brain will grow at a rate of 250,000 neurons per minute for the following 21 weeks starting from the time the neural tube closes, which occurs around week 7.

At week 5, the foetus will start the process of developing a brain, but the real fun doesn't start until week 6 or 7, when the neural tube shuts and the brain divides into three pieces.

The rapid rate of brain development beginning before birth and continuing throughout early childhood is one of the key causes. Although while the brain continues to grow and alter throughout adulthood, the first eight years of life can lay the groundwork for future success in learning, health, and living.

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Your question is incomplete. please read below to find the full content.

a. -->  ENDOCYTOSIS

b. -->EXOCYTOSIS

c.--> ENDOCYTOSIS.

d. --> BOTH

e. --> EXOCYTOSIS

f. --> BOTH

g. --> EXOCYTOSIS

To answer the question, first, we need to know the meaning of endocytosis and exocytosis.

Endocytosis and exocytosis process refers to molecules transport mediated by vesicles. It occurs from and into the cell and needs energy to happen because it is active transport.

Cells can export many substances in vesicles or vacuoles that originate in specific organelles like, for instance, the Golgi complex. Organelles form new vesicles or vacuoles with substances destined for exportation and send them forward to the membrane. When they get there, they fuse to the cell membrane, releasing all their content to the extracellular space. When fussing, the vesicle membrane increases the size of the cellular membrane. This process is exocytosis, and its direction is always from the inside of the cell to the outside.

But there is also another vesicle-mediated transport that occurs from the exterior to the cell interior, the endocytosis process. It happens when the cell imports material from the extracellular space through the invagination of the membrane, producing a new vesicle that surrounds the incoming material. The invagination ends in strangulation of the membrane, releasing the new vesicle in the cytoplasm. This process decreases the size of the cellular membrane because it uses part of it to engulf the material.

Now that we know these concepts, we can sort the phrases into the appropriate bins.

a. decreases the surface area of the plasma membrane. ENDOCYTOSIS, because the new vesicles are formed using the cell membrane.

b. requires fusion of vesicles with the plasma membrane. EXOCYTOSIS, because the vesicle needs to fuse to the cell membrane to release the carrying material.

c. forms vesicles from inward folding of the plasma membrane. ENDOCYTOSIS. Refers to the invagination process of the cell membrane. It only occurs during endocytosis

d. transported substances never physically cross the plasma membrane. BOTH. Substances are too big or too many to be physically transported through the cell membrane

e. increases the surface area of the plasma membrane. EXOCYTOSIS. Occurs when the vesicle fuses the cell membrane to release the content to the exterior.  

f. requires cellular energy. BOTH of them, because they are active transport.

g. secretes large molecules out of the cell. EXOCYTOSIS. The direction is from the interior of the cell to the exterior. These are exportation molecules.

Although most solutes that enter or exit the cell are relatively small (inorganic ions, sugars, or amino acids), occasionally the movement of larger molecules into or out of the cell is required. For example, certain cells secrete proteins, such as pancreatic cells that secrete insulin. Other cells take up food particles or even entire cells, such as lymphocytes in your immune system. Transport of such large materials into and out of the cytosol cannot be accomplished by transporting proteins in the plasma membrane. The transport of large molecules is accomplished by bulk transport via exocytosis and endocytosis. Like other forms of active transport, bulk transport requires an input of energy. Before beginning this tutorial, watch the segment of the Membrane Transport animation on exocytosis and endocytosis. Observe the role that vesicles play in the transport of materials into and out of the cell.

Part A

Sort the phrases into the appropriate bins depending on whether they describe exocytosis, endocytosis, or both.

a. decreases the surface area of the plasma membrane

b. requires fusion of vesicles with the plasma membrane

c. forms vesicles from inward folding of the plasma membrane

d. transported substances never physically cross the plasma membrane

e. increases the surface area of the plasma membrane

f. requires cellular energy

g. secretes large molecules out of the cell

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Through meiosis, four haploid cells are produced. These cells are the gametes. Gametes merge during fertilization, and produce a new diploid cells. Option 3. Meiosis in the ovary (3) and fertilization in Fallopian tubes (4).

Meiosis followed by cytokinesis are a cell division process that produces gametes from germ cells.

Through Meiosis, a diploid cell (2n) produces four haploid daughter cells (n). After DNA replication there are two meiotic phases.

In sexual reproduction, two gametes merge and produce a diploid zygote which will then suffer successive mitosis events and produce a new individual.

In a female mammal, meiosis occurs in the ovary and fertilization occurs in fallopian tubes.

Image,

1) Vagina

2) Cervix

3) Ovary

4) Fallopian tube

5) Uterus

The correct option is 3. Meiosis in the ovary (3) and fertilization in Fallopian tubes (4).

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Answer:

The energy conversions that occur when a grapefruit falls from a tree is;

Potential energy ---> kinetic energy ---> potential energy

Combustion reactions occur in the presence of oxygen gas- True

Energy is the ability to do work - True

A renewable energy source is one that is replaceable - True

Light energy is emitted by certain organisms such as fireflies and glow-worms - True

Sound energy cannot travel through air - False

Heat energy cannot travel through a liquid for example water - False

Explanation:

According to the first law of thermodynamics, energy can not be created nor destroyed but is converted from one form to another. When a grapefruit falls from a tree, the energy conversion is as follows;

Potential energy ---> kinetic energy ---> potential energy

Combustion reaction refers to a reaction where a substance is burnt in oxygen to produce heat and light.

Energy is defined in science as the ability to do work. Renewable energy can be replaced. A typical example is solar energy.

Light energy is emitted by certain organisms such as fireflies and glow-worms.

Sound is a mechanical wave hence it must be transmitted through a medium. The medium through which sound waves are transmitted is air.

Heat travels through any thermal conductor. Water is an example of a good thermal conductor. Heat indeed travels through different liquids.

Answer:

Changing the pH will affect the charges on the amino acid molecules. Amino acids that attracted each other

Answer:

Changes in pH affects an enzyme because the level of acidity or alkalinity in enzymes varies, therefore enzymes tend to support one aspect of the pH.

Answer:

2.Science is absolute and never uncertain.

3.Science is testable, repeatable, observable, and falsifiable.

4.The laws of nature are consistent and logical.

Explanation:

First, they assume that the information and developments in the cosmos happen in constant patterns that are understandable through accurate, well-organized research. Second, they understand that the cosmos is an enormous single arrangement in which the basic commands are universally equivalent to others.

The list of elements in the question comprises the periodic table of elements. It consists of the basic elements that exist in the universe. It comprises the simplest type of chemical substance, such as oxygen, which is essential for breathing. Fluorine is a highly reactive non-metallic element, Uranium is a silvery-grey metal that is denser than lead.

Carbon is a non-metallic chemical element with atomic number 6, Potassium is a silvery-white metal that is soft and easily cut, Bismuth is a chemical element that has a low melting point, Technetium is a metal that has a silver-gray appearance, Helium is a colorless and odorless gas that is non-toxic.

Sulfur is a yellow non-metallic element, Germanium is a metalloid that has a grayish-white appearance, Thulium is a chemical element that is the least abundant of the rare-earth elements, and Yttrium is a metal that is similar to aluminum but is more ductile and malleable.

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The three primary prevention strategies against cave-ins are: slope, shielding, and having a qualified individual examine the excavation. A cave-in is the greatest danger in an excavation.

How does cave-in protection work?

Sloping, shoring, and shielding are three techniques used to protect excavations from cave-ins. Cave-in prevention also includes following safety procedures when undertaking excavation work to protect employees from dangers.

Sloping, which lowers the height of the trench wall at an angle that tilts it away from the excavation to promote stability and prevent collapse, is a common technique.

It can be done in a number of ways, including by using machines, manual labor, or a mix of both, to improve drainage and reduce the likelihood of waterlogging.

Shoring, also known as the application of aluminum hydraulic or other sorts to limit soil movement and cave-ins, is a procedure required while digging a trench or operating in an area where the earth could give way.

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Answer:

nucleus circle thats all i know srry

Explanation:

The quantity of energy that the body will create during the course of metabolism may be roughly estimated using a bomb calorimeter. It is accurate to say this.

A high metabolism provides advantages since it causes a person to burn calories more quickly than someone with a thyroid imbalance. However, a quick metabolism might make it difficult to put on weight or keep up a balanced diet.

A slow metabolism is caused by a variety of factors, including decreased activity, muscle loss, and internal organ aging. Fortunately, there are several strategies available to prevent aging from affecting your metabolism.

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Answer:

Smaller

Explanation:

If they were smaller they would have less to pull to, so then you would see them start to drift and fly away from each other

Answer:

(4) traits

(5) genes

(6) heredity

(7) dominant

(8) recessive

Explanation:

Traits are inherited, and coded by genes. Genes are DNA segments placed in chromosomes. Alleles code for different expressions of the same trait. 4) trait / 5) gene / 6) heredity / 7) dominant / 8) recessive.

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We know that phenotype is influenced by genotype and the action of the environment.

Part of an individual's phenotype is due to the genotype -inherited by the parents-, and the other part is due to the environment, where the individual develops.

According to this, inheritability might be defined as the proportion of phenotypic variation that might be due to genetic effects.

Regarding the genetic factor, inheritability is conditioned to heredity.

Heredity might be understood as the process of transmission of different characteristics through generations.

Morphological and behavioral characteristics are traits.

Genes are the hereditable DNA fragments that transmit the information needed to specify traits. This information passes from parents to offspring, generation to generation.

Genes are physically placed and arranged in the chromosomes. Each chromosome contains many genes that might vary in length.

Genes are inherited and define the individual's phenotype.

Alternative forms of genes -alleles- is what determine the phenotypic variation.

Each individual inherits a set of genes from each parent that combine during fertilization.

According to this combination, each individual will express a phenotype that is the product of a mixture between both parents' genetic charges.

According to Mendel, each individual has a pair of factors -alleles-, and each factor codes for an alternative form of the same trait -for instance, tall and short-. He thought that these factors separate -segregate- during gamete formation.

In complete dominance, the dominant allele completely masks the recessive allele effect. This is evident in heter0zyg0us individuals that only express the dominant trait. The dominant allele is hiding the expression of the recessive allele.

Knowing this, we can complete the sentences.

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Answer:

it is C

Explanation: