why is anthosynin present in rose​

Prokaryotes are always single-celled organisms, whereas eukaryotes can have several cells. Additionally, eukaryotic cells are 100 to 10,000 times more complex and vastly larger than bacterial cells.

The absence of any membrane-bound organelles, such as a nucleus, distinguishes prokaryotic cells from eukaryotic cells. Prokaryotic cells only have ribosomes, an exterior plasma membrane, and a DNA nucleoid structure.

Organelles that are attached to membranes, like the nucleus, are present in eukaryotic cells but not in prokaryotic ones. The presence of mitochondria and chloroplasts, the cell wall, and the makeup of chromosomal DNA are all differences between prokaryotes and eukaryotes' cellular structures.

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Answer:

1. a 2. d 3. b

Explanation:

1. Changes in the atmosphere causes changes in the hydrosphere which affects the biosphere.

2. Hydrosphere, geosphere, atmosphere

3. Melting glacier provides fresh water for plants and animals.  

Answer:

The human body needs a certain amount of fat to function. This is because fats in the body not only store important nutrients, but since they cannot produce their own, they act as messengers helping proteins do their jobs. Additionally, fats help insulate a person's body to protect them from drastic temperature changes.

Golden eagles have adapted their behavior for living in temperate

grasslands by building their nests on the ground.

Temperate grassland is characterized by mainly grasses and very few

trees. Animals like the Golden eagle who build their nests on tall trees are

able to adapt to the absence of these types of trees in the grasslands by

building their nests in the ground.

They live in in pairs in the temperate grasslands to efficiently guard the

nest and hunt  animals for their survival.

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Answer:

because gas is always around the Galaxy

Polyphasic approach is used to most accurately classify E. coli k12 and E. coli o157:h7 as separate strains but the same species.

The three interconnected domains of categorization, nomenclature, and identification that make up bacterial taxonomy are meant to reflect phylogeny and evolution. A consensus style of taxonomy known as polyphasic taxonomy seeks to make use of all the information at hand in defining consensus groupings that will be important for the judgments made in the end.

The bare minimum requirements for obtaining useful polyphasic data are: 

(i) a preliminary screening for groups of related strains; 

(ii) determining the phylogenetic placement of these groups; 

(iii) measuring the relationships between the groups and their closest neighbors; and 

(iv) gathering various descriptive data, focusing primarily on various facets of the cell. 

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The complete question is:

which of the following taxonomic approaches could be used to most accurately classify e. coli k12 and e. coli o157:h7 as separate strains but the same species?

1) Psychopathic approach

2) Phylogenetics approach

3) Polyphasic approach

4) Polygenic approach

Based on research analysis, the data the tests on the purified substance produce is a negative result in chemical tests to observe proteins, but a strongly positive result in a chemical test to observe DNA.

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning.

DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells, distributed among 46 long structures called chromosomes.

DNA is made of nucleotides. A nucleotide has two components: a backbone, made from the sugar deoxyribose and phosphate groups, and nitrogenous bases, known as cytosine, thymine, adenine, and guanine.

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Answer:

the correct answer is D.

Explanation:

The statement which is not true about homeostasis is as follows:

Thus, the correct option for this question is D.

Homeostasis may be defined as a type of self-regulating strategy through which an organism is inclined to regulate stability while calibrating to conditions that are best suited for its survival.

If the process of homeostasis runs successfully, the life of an organism goes smoothly but if it is unsuccessful, the life of an organism ultimately terminates.

The process of homeostasis performs the following functions:

Therefore, the correct option for this question is D.

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Answer:

The transcription and translation into protein of the information of a mutated DNA could lead to an amino acid change due to substitution.

Explanation:

Substitution is a type of molecular mutation —point mutation— in DNA, with effects on protein synthesis.

The change of an adenine base by guanine in the DNA leads to an erroneous transcription, which results in the change of an amino acid, alanine instead of valine:

Unmutated DNA      AGACAGACG

Transcribed mRNA UCU GUC UGC

Amino acids            Ser    Val    Cys

Mutated DNA           AGACGGACG

Mutated mRNA      UCU GCC UGC

Amino Acids            Ser   Ala    Cys

This change corresponds to a subtitution of one base for another in ADN, leading to a change in an amino acid of the protein and can lead to structural and functional alterations of the synthesized protein

The other options are not correct because:

    A. The mutation would affect the production of peptides by changing an amino acid.

    B. The change of the amino acid is not due to an insertion, but to a substitution.

    D. The change occurred in one amino acid due to a substitution, not multiple amino acids due to a frame mutation.

The test tube that can be seen to contain an artificial cytoplasm is test tube 3

Given that;

Test Tube 1 | Orange | Red

Test Tube 2 | Yellow | Orange

Test Tube 3 | Yellow | Yellow

Test Tube 4 | Green | Green

The fact that the pH of the mixture remained steady after the addition of HCl shows that the unidentified solution in Test Tube 3 buffered the addition of the acid and kept it there. This behavior is in line with the existence of synthetic cytoplasm, which is intended to keep the pH in check so as to mimic the natural cellular environment.

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Answer:

A. the switch is incomplete

Explanation:

Answer:

Signal transduction pathways allow different types of cells to respond differently to the same signal molecule. Signal transduction pathways convert a signal on a cell's surface to a specific cellular response.

The targets of such signaling pathways frequently include transcription factors that function to regulate gene expression. Intracellular signaling pathways thus connect the cell surface to the nucleus, leading to changes in gene expression in response to extracellular stimuli.

Answer:

Fish are more smarter than they appear they have long-term memories to help them keep track of complex social relationships. :0

Explanation:

Answer:

A

Explanation:

Enzymes are proteins that help speed up metabolism, or the chemical reactions in our body. They bud some substances and break others down. The main function of an enzyme is catalysing, or speeding up chemical reactions.

Nice question

Answer:

below!

Explanation:

"RNA is single-stranded while DNA is double-stranded.

RNA contains uracil while DNA contains thymine.

RNA has the sugar ribose while DNA has the sugar deoxyribose."

-DNA vs RNA Expii

Hope this helps! :)

Answer:

Sudden reversal of the electrical charge across the membrane of resting neuron

Answer:

Stimulation of a neuron causes a change in the charge inside the cell from negative to positive. This change is caused by ions, which are atoms with an electrical charge, moving across the cell. This change within the cell is consistent with the definition of an electric charge.

Explanation: PLATO ANSWER

Answer: One reason is the Co2 (Carbon Dioxide) in the air may cause the algae growth.

Explanation:

Carbon dioxide has been known to cause excessive blue or green algae.

Explanation:

Deficiency of Vit C may lead to Scurvy which is characterized by bleeding gums and weak teeth.

This is because Vit C (ascorbic acid) helps in keeping healthy bones, teeth and gums

Answer:

Answer:The definition I found is: 1 light year = 9.4605284 x 10¹⁵ ... If a star is shown to be 33.11 trillion kilometers away, how ...

Answer:

I think it would be around 3.5 lightyears if i remember correctly.

Explanation:

The mode of inheritance in this pedigree is Y-linked.Therefore, the correct option is 3.

The genes that are found on the Y chromosome can be inherited through a process known as Y-linked inheritance. The X and Y chromosomes are the sex chromosomes of male mammals like humans.

The Y chromosome has fewer genes than the X chromosome because it is smaller. In addition, they are also necessary for sperm formation, healthy hormone output, and other features unique to males.

The pedigree given here is the case of Y-linked inheritance because each male generation is of showing this inheritance and the same is being followed in the family 5.Hence, the correct option is 3.

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The mode of inheritance in this pedigree is Y-linked.Therefore, the correct option is 3.

Y-linked inheritance is a type of genetic inheritance that occurs exclusively through genes located on the Y chromosome. The Y chromosome is one of the two sex chromosomes in humans, and it is typically only present in males.

Since females do not have a Y chromosome, they cannot inherit traits that are exclusively Y-linked. In males, however, any genetic variation on the Y chromosome is passed on directly from father to son.

Y-linked inheritance is relatively rare compared to other types of inheritance because the Y chromosome is small and contains relatively few genes. Some examples of traits that are known to be Y-linked include male-specific infertility, hair loss, and some types of color blindness.

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Answer:

Prokaryotes are cells with no nucleus

Answer:

yes

Explanation:

look at the link I gave you :)

According to Humayun's hypothesis, chemical reactions between rock and liquid metal at the Earth's core-mantle border are what caused the extra iron to enter the mantle.

According to research by Professor Munir Humayun, the Earth's mantle beneath Hawaii has a higher iron content than other parts of the mantle. Hot plumes of solid rock from the core-mantle barrier or the deep mantle rise at rates of a few centimeters per year to form hotspot islands, such as Hawaii.

Seismologists have long hypothesized that the deep mantle of the Earth, which is the rocky layer 1,000 to 3,000 kilometers below the Hawaiian Islands, has a higher percentage of iron, but no one has ever exactly tested it, according to Humayun. One of the four primary elements that make up the mantle is iron.

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Answer:

D is the answer hope it helps

Answer: D

Explanation: Hope this helps! excuse me if i'm wrong:)