purple said chemical bonds
dark green said covalent ​

Answer:

I think its C

Explanation:

Explanation:

Option D:production of body heat: The skeleton serves six major functions: support, movement, protection, production of blood cells, storage of minerals and endocrine regulations. Hence, production of body heat is not a function of the skeletal system.

The major functions of the skeletal system are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and blood cell formation

Answer: A, B, C, D

Explanation:

Fishes inside water have streamlined shape body and have slippery scales to move inside water and protect themselves. Fishes have fins and tails to keep balance in water. They also have gills to use oxygen dissolved in water which help them to live inside water for years.

Answer:answer is 1

Explanation:

because i’m like that and i know

The brain and spinal cord are part of the central nervous system.

The electrical charges that act as nervous signals are called action potentials or nerve impulses.

Jellyfish do not have a brain. Instead, their nervous system is called a nerve net.

After nervous systems began to develop in bilaterally symmetric animals, some developed ventral nerve cords, while chordates developed dorsal nerve cords.

Skeletons that allow for movement by using muscles and squeezing liquid to change the body shape are called hydrostatic skeletons.

Exoskeletons do not grow with arthropods, and so occasionally must be shed and regrown from chitin.

Muscles move endo- and exoskeletons by contracting and relaxing.

Fertilization is the joining of two gametes called sperm and egg.

A fish that lays her eggs in a cluster is initiating cluster or mass fertilization.

Amniotic eggs are an adaptation by reptiles to allow for reproduction and embryo development on land.

Describe three different strategies used by three different animals to thermoregulate.

If you see a snake coiled up in a sunny patch of grass, what can you probably conclude about the type of thermoregulator it is. Why?

If you see a snake coiled up in a sunny patch of grass, you can probably conclude that the snake is an ectotherm. Ectotherms rely on external heat sources, such as the sun, to regulate their body temperature. By basking in the sun, the snake absorbs heat, which helps raise its body temperature to a suitable level for proper physiological functioning.

Answer:

1. central

2. action potential

3. nerve net

4. dorsal

5. hydrostatic

6. Exoskeletons

7. contraction/contracting

8. Fertilization

9. external fertilization

10. Eggs

11. Animals with fur thermoregulate by panting. Winged birds will flap against their mouths/heads to dissipate heat. Humans will produce sweat to evaporatively cool. Polar bears have developed blubber. Bears drop body temperatures during hibernation.

12. Seeing a snake using the warmth of the sun leads us to conclude that it is likely a thermo conformer that cannot produce its own body heat.

Pyruvate kinase is an enzyme required for glycolysis. Thus, option A is the answer.

During the process of glycolysis, pyruvate kinase helps in converting phosphoenolpyruvate into pyruvate. The phosphate group of the phosphoenolpyruvate transfers to ADP & produces ATP along with NADP.

The linear metabolic pathway of enzyme-catalyzed reactions that convert glucose into two molecules of pyruvate in the presence of oxygen and the process is called Glycolysis.

Glycolysis is divided into 3 stages-  Stage 1 (Priming stage), stage 2 (Splitting stage) and stage 3 (Oxidoreduction-phosphorylation stage)

Glycolysis takes place in the cytoplasm here one 6-carbon molecule of glucose is oxidized to generate two 3-carbon molecules of pyruvate.

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Genetics study focuses on the role that particular genes or gene families play in health and disease.

The study of genes and heredity, or how particular characteristics or qualities are passed from parents to their offspring as a result of variations in DNA sequence, is known as genetics. A gene is a section of DNA that has the instructions needed to create one or more proteins that support bodily function.

Mutations in one gene (monogenic disorder), multiple genes (multi - factorial inheritance disorder), a combination of gene mutations and external factors, or damage to chromosomes (increase in the composition or structure of entire chromosomes, this same structures that make up a person) can all result in genetic disorders.

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Answer:

C-6 CO2,18 ATP, 12 NADPH

Answer:

2nd one

Explanation:

I believe this is correct. rr is a recessive homozygous.

Answer:

C!

Explanation:

Of course you would want to evolve against your predators! Many examples of this include camouflage, gills, or mimicry. Hope this helps!

Answer:

Explanation below

Explanation:

Stefanie should be aware that eating two much of food that is reach in fat during her pregnancy is very bad. This because the food substances will make the baby to be extraordinarily big and can results to a prolonged labor for the mother.

Therefore, according to present food intake procedure, Stephanie should avoid any food that can make the unborn child necessarily big.

Extracellular polymeric substances help protect biofilms from issues such as drying out and predators. Option A

Biofilms are complex communities of microorganisms that adhere to surfaces and form a protective matrix. They can be found in various natural and artificial environments, such as riverbeds, medical devices, and plumbing systems. Biofilms provide advantages to the microorganisms within them, including protection from environmental stresses and predators.

One of the key components that helps protect biofilms is extracellular polymeric substances (EPS). EPS are complex mixtures of polysaccharides, proteins, and DNA that are secreted by microorganisms within the biofilm. These substances form a matrix that encases the cells, providing structural support and protecting the community.

EPS help biofilms resist drying out by retaining water and preventing desiccation. The polysaccharides in EPS can absorb and retain moisture, creating a hydrated environment within the biofilm even in dry conditions. This is crucial for the survival of the microorganisms within the biofilm.

Additionally, EPS serve as a barrier against predators. The matrix formed by EPS can make it difficult for predators, such as protozoa or grazing organisms, to access and consume the microorganisms within the biofilm. It acts as a physical defense mechanism, limiting the exposure of the microorganisms to predation.

While quorum sensing, becoming sessile (immobile), and autoinducers are all important mechanisms and processes associated with biofilms, they do not directly address the protection of biofilms from drying out and predators. So Option A is correct.

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Phenols and glycosides are pre-existing defense mechanisms in plants' immune systems. These compounds are part of the plant's chemical defense arsenal and are present in various tissues even before any attack or infection occurs.

Phenols are secondary metabolites found in plants that have antimicrobial and antioxidant properties. They contribute to the plant's defense against pathogens by inhibiting the growth and development of microorganisms. Phenols also play a role in wound healing and lignification, which strengthen the plant's cell walls.

Glycosides are another class of secondary metabolites found in plants that have diverse functions, including defense against herbivores and pathogens. Some glycosides act as toxic compounds when ingested by herbivores, while others can inhibit the growth of microorganisms or interfere with their feeding behavior.

Both phenols and glycosides are produced by plants as part of their constitutive defenses, meaning they are present at baseline levels even in the absence of stress or attack. However, their production can be further induced or enhanced in response to specific stimuli, such as pathogen invasion or herbivore feeding.

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Using the absorbance values provided in Table 2.5, construct a graph of absorbance versus protein concentration, properly labeling the graph and its axes. Plot the standard absorbance values and draw the standard curve. With a ruler and pencil, use this graph to estimate the protein concentration in the unknown samples (Ux and Uy).

To determine the protein concentration in the unknown samples, follow these steps:

1. Obtain eight test tubes and a rack, label them 1-8.
2. Pipette 5.0 mL of buret reagent into each tube using a mechanical pipettor.
3. Add 50 µL (0.05 mL) of the respective solutions (standards and unknowns) into each corresponding test tube, ensuring a final volume of 5.05 mL.
4. Cover the tubes with Parafilm, mix the contents, and let them stand at room temperature for at least 5 minutes.
5. Transfer the solutions to cuvettes if available.
6. Set the spectrophotometer wavelength to 550 nm and calibrate it using the blank (B).
7. Record the absorbance values for tubes 2-8.

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Nondisjunction of the X chromosome occurs during prophase of meiosis I in females, resulting in Klinefelter's syndrome, XXY males. Only males are afflicted by Klinefelter syndrome, which is caused by a genetic anomaly.

Klinefelter syndrome is sometimes called Klinefelter's, KS or XXY. It is where boys and men are born with extra X chromosome. There are 2 types of chromosome that are the sex chromosomes, that determine the genetic sex of a baby.

Klinefelter syndrome is caused by an additional X chromosome and this chromosome carries extra copies of genes, which interferes with the development of the testicles and they produce less testosterone than usual.

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Answer:C

Explanation:Chromosomes are big piles of DNA that unravel when needed. DNA are made up of billions of genes that correspond to the order of TC AG. to C is the correct answer. hope this helps. brainliest pls

When recording euthanasia be sure to note the date, animal identification information, confirmed or tentative diagnosis, euthanasia method and final disposition.

The euthanasia record is an important document for veterinary practices and should be maintained according to state and federal regulations and the policies and procedures of your practice.

When recording euthanasia, be sure to note the date, animal identification information, confirmed or tentative diagnosis, euthanasia method, and final disposition.

Another important thing to note is that euthanasia should be considered only when alternative management options are not available or have been exhausted, when quality of life is poor, and when euthanasia is in the best interest of the animal.

All reasonable steps should be taken to minimize pain and distress during the process.

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Answer:

The wider the ring, the more warm and wet the climate is, the thinner the rings, the more cold and dry the climate is.:)

Researchers introduce intentional error into an experiment will be for selfish interest and the closest option here is (A).

Intentional error refers to the deliberate manipulation or falsification of data or experimental results by a researcher to achieve a particular outcome.

This practice is highly unethical and goes against the fundamental principles of scientific research, which is based on the pursuit of truth and accuracy.

Intentional error can take many forms, such as fabricating data, manipulating data points, misrepresenting results, or selectively excluding data to support a particular hypothesis or agenda.

No researcher should be caught doing this as it will lower the integrity of the researcher.

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Answer:

Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.

Explanation:

The new Velocity_max is 0.5 mM per minute, which corresponds to option A.

To calculate the new Vmax, we can use the Michaelis-Menten equation, which relates the reaction rate (Vo) to the substrate concentration ([S]) and the maximum reaction rate (Vmax). The equation is given as:

Vo = (Vmax × [S]) / (Km + [S])

We have two sets of data points:

[S] = 5.0 mM, Vo = 0.25 mM/min

[S] = 2.0 mM, Vo = 0.333333333333 mM/min (approximately 1/3 mM/min)

From the first set of data, we can calculate the Km value by rearranging the Michaelis-Menten equation as:

Km = ([S] × Vmax) / (Vo - Vmax)

Substituting the values, we get:

Km = (5.0 mM × Vmax) / (0.25 mM/min - Vmax)

Similarly, from the second set of data, we get:

Km = (2.0 mM × Vmax) / (0.333333333333 mM/min - Vmax)

Since Km should be constant, we can set the two equations equal to each other:

(5.0 mM × Vmax) / (0.25 mM/min - Vmax) = (2.0 mM × Vmax) / (0.333333333333 mM/min - Vmax)

By solving this equation, we find Vmax = 0.5 mM/min.

Therefore, the new Vmax is 0.5 mM per minute, which corresponds to option A.

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Answer:

Centimeter is the SI unit of length. The distance light travels in a year is measured in light-years. The length of a marathon is measured in miles. The mass of the sun is measured in solar masses. The distance across the universe is measured in kilometers. The length of a nanometer is measured in angstrons. The distance across an atom is measured in picometers. The distance across a subatomic particle is measured in attometers. The mass of an electron is measured in kilograms. The number of protons in an atom is measured in avogadros.

Explanation:

Answer:

D

Explanation:

people take it into account that the environment is fine for growing children hence giving birth

An organism that has chloroplasts and vacuoles and moves using a flagellum would be classified as an autotroph.

An autotroph is an organism that can generate its own food, which is due to a chemical process called photosynthesis.

Photosynthesis occurs in a specialized organelle called chloroplast that traps sun radiation to convert it into chemical energy.

In conclusion, an organism that has chloroplasts and vacuoles and moves using a flagellum would be classified as an autotroph.

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1. Light has two personalities. Light acts primarily as a wave, but it may also be thought of as a collection of tiny bundles of energy known as photons. If a pigment is red, it absorbs photons of different wavelengths while reflecting photons of the same wavelength.

2. Photosystems, which are huge complexes of proteins and pigments (light-absorbing molecules) that are tuned for light harvesting, play an important part in light reactions. Photosystems are classified into two types: photosystem I (PSI) and photosystem II (PSII).

1 A photon is an electromagnetic energy packet. It is the fundamental unit of all light. The photon is also known as a "quantum" of electromagnetic energy. A photon's energy is proportional to its wavelength: longer wavelength photons have less energy, while shorter wavelength photons have more.

2 Light energy is used in light-dependent reactions to create two molecules required for the next step of photosynthesis: the energy store molecule ATP and the reduced electron transporter NADPH. Light reactions occur in the thylakoid membranes of chloroplast organelles in plants.

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Answer:

The crane has a sharp and pointed beak adapted for catching and grasping prey. The sharp beak allows the crane to effectively stab and pierce its prey, such as fish, frogs, or small animals. The pointed shape helps the crane to accurately target its prey and secure a firm grip.

On the other hand, the duck has a flat beak, which is better suited for its specific feeding habits. Ducks are primarily filter feeders, and their flat beak enables them to sift through water or mud to collect small organisms, insects, and plants. The flat beak acts like a sieve, allowing the duck to strain out food particles while retaining water.

The difference in beak shape between the crane and the duck reflects their distinct feeding strategies and ecological roles. Each species has evolved its beak shape to optimize its ability to capture and consume the specific types of food sources available in their respective habitats.

Answer:

Most of the water on earth is located in the oceans

Explanation:

The question states, 97 percent of the worlds water is salt water, which is what oceans are made up of, and, obviously, oceans are made up of salt water, and oceans also cover up approximately 71 percent of the earth, which from there, we can infer, that most of Earths' water is in the oceans.

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Cells are made up of a colorless, jelly-like substance called protoplasm in which food elements such as proteins, fats, carbohydrates, minerals, and water are present. Option B is correct.

Protoplasm refers to the colorless, jelly-like substance that is present inside the cell membrane of the cell, and it is the living substance of the cell. All the activities of the cell are carried out in the protoplasm. It comprises the cell's nucleus, cytoplasm, and cell membrane. Protoplasm is a term used to describe the living substance found within cells.

It is the collective term for the cytoplasm and nucleus of a cell. Protoplasm includes various components such as water, proteins, lipids, carbohydrates, nucleic acids, and other organic and inorganic molecules. It plays a vital role in maintaining the structure, metabolism, and functioning of cells. Option B is correct.

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Answer: b. Protoplasm.

Explanation: Cells are composed of various components, including the protoplasm. Protoplasm refers to the colorless, jelly-like substance that fills the cells. It contains all the essential components necessary for the cell's functioning, such as proteins, fats, carbohydrates, minerals, and water.

Protoplasm consists of the cytoplasm and the nucleus, which are enclosed by the cell membrane.

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Answer:

The correct answer is - d) basal nuclei.

Explanation:

Basal nuclei is the area present at the base of the brain made up of four sets or clusters of nerve cells. It helps in the regulation of muscle tone essential for control of the contractions of the skeletal muscle movements and other body movements.

It is the part of the grey matter found in each cerebral hemisphere that has a major role in the initiation and termination of skeletal muscle movements. Its prevent the body from unwanted body movements.