explain why a leaf cannot be tested for starch by adding iodine solution directly​

The primary function of the adrenal cortex is to regulate blood glucose and salt levels. Here option A is the correct answer.

The adrenal cortex is the outer part of the adrenal gland, which sits on top of the kidneys. It is responsible for producing various hormones that are essential for maintaining homeostasis in the body. The primary function of the adrenal cortex is to regulate the levels of glucose and salt in the blood through the production of hormones such as cortisol, aldosterone, and androgens.

While the adrenal cortex does produce other hormones such as progesterone and testosterone, they are not its primary function. The inhibition of progesterone release and absorption of progestins from the bloodstream are functions of the placenta and not the adrenal cortex. The release of testosterone into the testes is a function of the testes themselves and not the adrenal cortex.

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Complete question:

What is the primary function of the adrenal cortex?

A) Regulation of glucose and salt levels in the blood

B) Inhibition of progesterone release

C) Absorption of progestins from the bloodstream

D) Release of testosterone into the testes

The flatworms, also known as flatworms are a class of unsegmented, soft-bodied, bilaterian invertebrates that are relatively basic.

Flatworms are acoelomates (have no body cavity), unlike other bilaterians, and lack specific circulatory and respiratory organs, which forces them to adopt flattened forms that permit oxygen and nutrients to diffuse through their bodies. Food cannot be continually processed because there is only one opening in the digestive cavity for both ingestion (the absorption of nutrients) and egestion (the elimination of unprocessed trash).

Any member of the phylum flatworm, commonly known as platyhelminth Platyhelminthes are a class of invertebrates with soft bodies that are typically very flattened. There are several free-living flatworm species, but around 80% of all flatworms are parasitic, meaning they live on or in another organism and get their nutrition from it. They lack specific respiratory, skeletal, and circulatory systems, are bilaterally symmetrical (i.e., the right and left sides are comparable), and lack a bodily cavity (coelom). The body is not segmented; spongy connective tissue (mesenchyme) fills the space between organs and makes up the so-called parenchyma.

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An adult human's hemoglobin contains α and β chains, with the association of iron in a porphyrin ring. So options A, B, E, and F are correct.

The blood of an adult human contains red blood cells that have Hemoglobin. Hemoglobin as the name suggests, contains the 'Heme' part and the 'globin' part. Together, they form a quarternary structure.

The globin part is formed with the α and β chains, occurring in sets of two forming a condensed structure. The globin part holds the heme part at the center of each chain.

The heme part is formed of a porphyrin ring which associates with iron. This is very essential for the affinity of oxygen.

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Specialized structures that perform cell functions are organelles.

What are cell organelles?

An organelle is a subcellular structure that has one or more specific jobs to perform in the cell, much like an organ does in the body. Among the more important cell organelles are the nuclei, which store genetic information; mitochondria, which produce chemical energy; and ribosomes, which assemble proteins.

An organelle is a particular sort of cell structure. Organelles come in many different varieties. Vesicles are another name for organelles in a cell. They actually serve a purpose that is crucial since all of the processes in a cell must be compartmentalized. Therefore, a membrane is required to surround the processes inside a cell that produce diverse products. Organelles are therefore all membrane-bound in reality. They also distinguish between one function and another. So, for instance, the lysosome breaks down large molecules to make small molecules, while the mitochondrion produces energy by breaking down large molecules.

They must be divided up since the lysosome requires an acidic pH and the mitochondrion relies on all of its pathways, proteins, and enzymes to convert one chemical to another. Additionally, none of the functions would be created if those two substances were combined.

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Answer:

B. Form of active transport

The statement that is true about exocytosis is that it is a form of active transport. That is option B.

Exocytosis is a cellular process where by materials especially waste products of metabolism or ions are moved from inside the cell to the outside of it.

An active transport is a process where by cells use energy to transport molecules across the cellular membrane.

There are different forms of active transport include:

Phagocytosis is the process by which cells transport large material into the, therefore Option A is False.

Golgi apparatus helps in exocytosis therefore option C is false.

Exocytosis requires energy, there option D is false

From the different forms of exocytosis listed above, exocytosis is a form of active transport because it makes use of energy.

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The protein with the linear chain sequence ser-his-thr-tyr represents the primary structure of the protein.

Proteins are the biomolecules that are made up of amino acids as the monomers. Proteins are the most essential biomolecules as they are involved in all the processes of the living organisms. They have structural, enzymatic and various other roles.

The proteins is made up of four levels of structures: primary, secondary, tertiary and quaternary. Primary structure is the one where the proteins exists as a linear chain of amino acids linked together by peptide bond. The primary structure is most essential as it decides the fate of further structures and also the function of the protein.

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Answer:

100%

Explanation:

My biology teacher taught me the FOIL method. F=first, O=outside, I=inside, and L=last.

TT x tt

The first letter of each parent together would be Tt, T=tall so the plant would be tall, 25%

The outside letter of each parent together would be Tt, T= tall so the plant would be tall, 25%

The inside letters of each parent together would also be Tt, T=tall so the plant would be tall, 25%

The last letter of each parent together would also be Tt, T=tall so the plant would be tall, 25%

Each outcome has a T, and that is dominant so therefore, the plants will always be tall. You could also think about it as a letter has to be passed down to each child and the first plant only has capitals to pass and the second only has lowercase to pass down.

100% of the offspring will be tall.

The heating in the Benedict's test and Millon test is carried out in a water bath to maintain a constant and controlled temperature. This ensures accurate and reliable results by minimizing external factors that could influence the reactions taking place.

The Benedict's test and Millon test are both chemical tests used to detect the presence of reducing sugars, such as glucose, in a given solution. These tests involve a reaction between the reducing sugar and a reagent, which undergoes a color change in the presence of the sugar.

Heating is an essential step in both tests because it helps to facilitate the reaction between the reducing sugar and the reagent. By applying heat, the rate of reaction increases, allowing for faster and more reliable results. However, it is crucial to maintain a consistent and controlled temperature throughout the reaction to ensure accuracy.

A water bath is used for this purpose. A water bath consists of a container filled with water that is heated to a specific temperature, typically around 70-100 degrees Celsius, depending on the test being performed. Placing the test tubes containing the reaction mixture into the water bath allows the solution to be heated uniformly and consistently.

The water bath provides a stable and controlled environment, preventing sudden temperature fluctuations that could affect the reaction rate and, consequently, the test results. It helps to maintain the reaction at the desired temperature for a specified duration, ensuring optimal conditions for the reaction to occur.

By carrying out the Benedict's test and Millon test in a water bath, scientists and laboratory technicians can achieve reliable and reproducible results, allowing for accurate identification of the presence of reducing sugars in a given solution.

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Answer:

A frog and humans

Explanation:

A frog develops and changes during its lifecycle,also a human thy grow as they age.

In ideal conditions, a growing calf consumes 100 pounds of grain. As a result, the calf should gain about 10-15 pounds of biomass.

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The role of the diaphorase enzymes is to transfer hydrogen ions between donor and acceptor molecules.

Diaphorase plays a critical role in electron transfer reactions, redox balance, and drug metabolism within the cell. Its activity is essential for various metabolic processes and for maintaining cellular homeostasis.

The enzyme diaphorase is also known as diaphorase I or NADH/NADPH diaphorase. It plays a crucial role in cellular metabolism and redox reactions.

Diaphorase is involved in the transfer of electrons between different molecules in the cell. It can accept electrons from reduced nicotinamide adenine dinucleotide (NADH) or reduced nicotinamide adenine dinucleotide phosphate (NADPH) and transfer them to other acceptor molecules. It can also act as an antioxidant enzyme, helping to protect cells from oxidative stress.

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The Big-O notation is used to determine the order of growth of algorithms. When algorithms are evaluated, they can be categorized as running in constant time, logarithmic time, linear time, quadratic time, exponential time, and so on.

The order of growth of log(n) is greater than n. It grows very slowly and is considered to have the second-slowest order of growth. For instance, if\(n=1000, log(n)\) is equal to 3.

It is faster than 3n and n2.2n+1: The order of growth of 2n+1 is exponential. It grows much faster than n3.n!: The order of growth of n! is factorial. It is the fastest-growing of all the given complexities.\(n∗log(n):\)

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Answer:

a blue eyes

please make my answer brainliest

Answer:

A.

Explanation:

Answer:

Yes, the operating system is the computers internal organization

Explanation:

Answer:

the nutrients in the food is absorbed

Explanation:

Answer:

Explanation:

Blood in the villi helps to absorb nutrients and sugar molecules

Nutrients from food are absorbed

Fat is broken down into smaller droplets

The infectious agent that is more likely to be an emergent disease is a virus.

Viruses are known to mutate quickly and adapt to new environments, which means that new, more dangerous strains of viruses can develop quickly. This means that viruses are more likely to cause new, emergent diseases than bacteria, protists, or other infectious agents. Viruses are also able to infect a wide range of host species, which can lead to the emergence of new diseases in different populations. Additionally, viruses are often able to evade the immune system, making them more difficult to control and treat. All of these factors make viruses more likely to be an emergent diseases compared to other infectious agents such as bacteria and protists.

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A phosphate group, two alcohols, and one or two fatty acids make up phospholipids. The phosphate group and one alcohol are located on one end of the molecule; this end is polar, meaning it has an electric charge and is immediately drawn to water (hydrophilic). The other end, which contains the fatty acids, is neutral; it is hydrophobic and insoluble in water, but fat-soluble.

Phospholipids are a type of lipid that has a hydrophilic "head" that contains a phosphate group and two hydrophobic "tails" that are derived from fatty acids and are merged by an alcohol residue (usually a glycerol molecule).

Because phospholipids are a vital component of biological membranes, they can be extracted from any living plant or animal. Eggs, meats, fish, and milk are the main sources of phospholipids derived from animals. Among them, chicken whole eggs have the highest phospholipid content.

The endoplasmic reticulum (ER) is the primary site of phospholipid synthesis, and lipids are transported to other membrane compartments via vesicular and non-vesicular transport.

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Answer:

The nervous system regulates breathing and heartbeats but it's also responsible for regulating the core temperature of the body. So when conditions are too warm or hot and body temperature rises, the blood vessels can dilate causing heat loss. Nerves can trigger sweat glands to release fluid that evaporates and cools the skin so that body temperature begins to lower to a normal condition.

Answer:

The three rules you must follow when WRITING a scientific name are as follows:-

maybe this answers points may help u out

I hope this might help u

The broad name for a cell that is part of the nervous system, but does not carry nervous impulses is known as nervous system stromal cell.

The nervous system is a complex system that is responsible for sending, receiving, and interpreting sensory information from various parts of the body. It includes the brain, spinal cord, and a network of nerves that run throughout the body.

The nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). Nervous system stromal cells are a group of cells that provide support to the nervous system. They do not transmit nerve impulses, but rather they play a critical role in maintaining the structure and function of the nervous system.

These cells are found in both the CNS and the PNS and are involved in a variety of important processes, including:Providing structural support to Neurons Regulating the growth and development of nerve Cells Producing myelin, which is a substance that insulates nerve fibers and helps to speed up nerve Impulses Removing waste products from the nervous System Regulating the levels of various neurotransmitters in the Brain Nervous system stromal cells are a diverse group of cells that includes astrocytes, oligodendrocyte s, and Schwann cells.

Each of these cell types performs a specific set of functions, but all are critical to the proper functioning of the nervous system.

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Answer:

Hmmm, I'll try to help you bud :3

Across:

2. I'm pretty sure it's Non-random mating? :3

5. Prob Convergent evolution-

6. Adaption ig

7. Sedimentary rock! :3

11. Plasmodium? :3

14. Convergent evolution again lol-

16. Polyploidy! :3

18. Radio carbon dating-

19. Phenotype- //idrk this one, rlly sorry bud//

23. Antibiotic Resistance :3

26. Prob Genetic drift

27. Cyanobacteria :3

Down:

1. Endosymbiotic :3

4. Prob Macroevolutionary :3

8. Ancestry? //pls even im suffering LMADKJDJKS//

12. Pleistocene? :3

13. 4.6 billion years old

15. Directional selection! hehe :3

16. Precambrian :3

17. Rapid evolution lol-

20. zeke- I meant Apes- //srry i-//

22. Vestigiality! :3

24. Dating rocks //pls my mind rn- LMADSDK//

aH u rEAChed tHE boTTOm- :3

Explanation:

:3

Answer:

This is tooo much But here...

Explanation:

...Explanation: Hardy-Weinberg equilibrium describes no change in the genotypic frequencies of a population. After one generation, assuming random mating, a closed system, a large population, and no random mutations, the genotypic frequencies of the population will not change.

CO2 in the atmosphere decreases during the growing season and increases during the rest of the year, which leads to maximum buildup in April and May before photosynthesis begins to take over again.

There's more carbon dioxide in the winter and a bit less in the summer. That's the collective breathing of all the plants in the Northern Hemisphere. "Plants are accumulating carbon in the spring and summer when they're active, and they're releasing carbon back to the air in the fall and winter," Graven explains.

Answer:

sperm cell and egg cell are the awnsers

Answer:

Simpe dominant- recsive

Explanation:

"Some people with hitchhiker’s thumb may have acquired two recessive copies, or alleles, of the gene that determines thumb straightness"

One  of her parents have typeA and other have type B blood group.

It follows the Codominance pattern of blood group. In which A and B both have polysaccharides sugar on them and i doesn't have any polysaccharideses sugar .

A and B can take blood from any blood group except AB so ,they are also called as universal recipient. O can take blood from only O but give to every blood group so it is called universal donor.

As the mother have AB blood group so there parent's will have Both Type A and Type B blood grouping.

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Answer:

Intuition is the right answer

Explanation:

Thank

The chemical equation for photosynthesis is 6CO2+6H2O→C6H12O6+6O2. 6CO2+6H2O→C6H12O6+6O2. In plants, the process of photosynthesis takes place in the mesophyll of the leaves, inside the chloroplasts.