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the molecules of hydrogen are formed when two atoms of hydrogen reacts with an atom of oxygen.


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Unambiguous Codon :

No ambiguity for a particular codon.

A particular codon will ALWAYS code for the same amino acid, where it is found.

e.g. GGA is an unambiguous codon, it CODES only for glycine and no other amino acid.

Degenerate Codon :

*Code is degenerate for a particular amino acid.

*One amino acid often has more than one code TRIPLET.

*e.g. Phenylalanine has two CODONS, i.e. UUU and UUC.

*Functions of codons

(a) Codes for methionine

(b) Serves as a SIGNAL to initiate protein synthesis

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➡ARTIFICIAL SELECTION ⤵⤵

➡ This is an artificial process

➡It controlled by humans beings in a laboratory at a limited scale

➡it has no adaptive value

➡ It OPERATES on some selected organisms

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➡NATURAL SELECTION

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➡ This is a natural process

➡ It is CONDUCTED by NATURE on a vast scale

➡ selected characters have adaptive value

➡ It operates on all organisms

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Cell wall of FUNGI is MADE up of cellulose and CHITIN

Here is your answer,
Free floating assemblage of ALGAE is COLLECTIVELY known as phytoplankton.
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PHOTOOERIODISM ➡

➡Photoperiod is the length of the day during which sunlight is on the germination of seeds and flowering in plants is called photoperiodism

➡Photoperiod acts as a stimulus for plants.

➡plants respond to this stimulus with the HELP of a blue- GREEN pigment called phytochrome

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Classification is based on 24 hours CYCLE if light and dark period

➡ SHORT DAY PLANTS (STD)

➡ LONG DAY PLANTS ( LDP)

➡ DAY NEUTRAL PLANTS (DNP)

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SIGNIFICANCE ⤵

➡ LONG PHOTOPERIOD STIMULATE FLOWERING IN LONG DAY PLANTS

➡ IT PROMOTES. SEED GERMINATION

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The two upper chambers of HEART is called as the auricles which RECIEVES blood from the other parts of the body and pumps into the VENTRICLE.

specifically right auricle recieves DEOXYGENATED blood from the body parts and pumps to right ventricle which is transported to the lungs.

the OXYGENATED blood from the lungs enters into the left auricle and pumped into the left ventricle which is then sent to the other body parts.

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To MAINTAIN the temperature needed to FORM sperm.. It needs COOLER temperature than normal temperature in our BODY..

Answer:

be there in this year and 17 CAMELS was just THINKING that you what to do the work and the KIDS are you what you what you what

Haplodiplontic LIFE CYCLE

Hello there !

__________

FUNGI are NEITHER eukaryotes nor prokaryotes

Fungi belong to kingdom fungi their CELL WALL is MADE up of chitin

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carpogonium LATER on in BRYOPHYTES and PTERIDOPHYTES we FING archeigonium

Answer:

as a part of immune response to foreign pathogens histamine is produced by basophils and by MAST cells found in nearby connective tissues SYSTEM increases the permeability of the CAPILLARY is to white blood cells and some proteins to allow them to ENGAGE pathogens in the infected ISSUES

When ripe pollen from an anther of the same kind of flower catches on the STIGMA, each pollen grain sends out a tiny threadlike tube. The tube grows down through the style and PIERCES one of the ovules in the ovary. This process is CALLED fertilization.

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⊙ Ebola is caused by Ebolavirus.

⊙ It is BELIEVED that it spreads through direct CONTACT within people or other FLUIDS of the BODY.


⊙ LIKE sweat , breast milk , tears etc

HI MATE...

your ANSWER..

OPTION D i.e. flower

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➖ HEY MATE ➖

Our immune system works continuously to KEEP us healthy and protect us against bacteria, viruses, and other germs. Sometimes, however, this system becomes too sensitive, causing hypersensitivity reactions that can be harmful or even deadly. These reactions are the result of exposure to some type of foreign antigen either on or in the body.
Hypersensitivity Reactions Key Takeaways
Hypersensitivity reactions are exaggerated immune responses to allergens.There are four TYPES of hypersensitivity reactions. Types I through III are mediated by antibodies, while type IV is mediated by T cell lymphocytes.Type I hypersensitivities involve IgE antibodies that initially sensitize an individual to an allergen and provoke a quick INFLAMMATORY response upon subsequent exposure. ALLERGIES and hay fever are both type I.Type II hypersensitivities involve the binding of IgG and IgM antibodies to antigens on cell surfaces. This induces a cascade of events that leads to cell death. Hemolytic transfusion reactions and hemolytic disease of newborns are type II reactions.Type III hypersensitivities result from the formation of antigen-antibody complexes that settle on tissues and organs. In an attempt to remove these complexes, underlying tissue is also damaged. Serum sickness and rheumatoid arthritis are examples of type III reactions.Type IV hypersensitivities are regulated by T CELLS and are delayed reactions to antigens associated with cells. Tuberculin reactions, chronic asthma, and contact dermatitis are examples of type IV reactions.

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⊙ A condition in which the immune system REACTS abnormally to a foreign SUBSTANCE.

Cell organelles direct the activity of the cell and stores DNA.....
LET things in and out of the cell ......
convert chemical energy stored in FOOD into compounfs more convenient for the cell to USE...
responsible for the synthesis and transport of proteins....
responsible for directing molecular TRAFFIC in the cells; modifies ;sorts and transfer molecules....
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The emergence of multi-drug-resistant microorganisms in hospital environments is a global public health problem and threat to everyone, especially HIV-infected patients. Methicillin-resistant STAPHYLOCOCCUS aureus (MRSA) and coagulase-negative Staphylococci (CoNS) are the major causative agents associated with MORBIDITY and mortality in HIV patients. Therefore, control of MRSA and CoNS-related infections in HIV patients is a worldwide concern. To INVESTIGATE novel, potent, and cost-effective therapeutic approaches, the current study reports a simple and rapid synthesis of silver nanoparticles (AgNPs) using aqueous leaf EXTRACT of Alysicarpus monilifer and its antibacterial efficacy against multi-drug-resistant MRSA and CoNS isolates from HIV patients. The greensynthesized AgNPs were characterized using ultraviolet-visible spectroscopy, transmission electron microscopy, ENERGY dispersive X-ray analysis, selected area electron diffraction pattern, X-ray diffraction patterns, and Fourier transform infrared spectroscopy. Stable, well-defined AgNPs, mostly spherical in shape with mean size of 15 ± 2 nm, were obtained within an hour. Moreover, green synthesized AgNPs revealed significant dose-dependent antibacterial action against MRSA and CoNS isolates. This study concludes that biogenic AgNPs have demonstrated to be potent antibacterial agents in comparison with conventional antibiotics.

Cells are the BUILDING blocks of life. They are called so because large NUMBER of cells assemble to MAKE the body of a multicellular ORGANISM.

*Nitrosomonas*

These use electrons from the OXIDATION of ammonia to produce energy. ... Unlike plants, which fix carbon into sugar through energy gained through the process of photosynthesis, Nitrosomonas use energy gained through the oxidation of ammonia to fix GASEOUS carbon dioxide into ORGANIC molecules.

*Nitrobacters*

Nitrite is not a particularly favourable substrate from which to gain energy. ... As a result, Nitrobacter has developed a highly specialized metabolism to derive energy from the oxidation of nitrite. Cells in the genus Nitrobacter reproduce by budding or binary fission.

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Air pollution. BURNING fossil fuels emits a number of air pollutants that are HARMFUL to both the environment and public health. SULFUR dioxide (SO2) EMISSIONS, primarily the result of burning coal, contribute to acid rain and the formation of harmful particulate matter.

Answer:

Cu, Mn, Fe

Explanation:

   Micronutrients are MINERALS obtained from the soil and PRESENT in PLANT tissues at concentrations USUALLY less than 3μmolg−1 dry matter. Cu (copper), Mn (manganese) and Fe (Iron) are those micronutrients which affect both photosynthesis and mitochondrial electron transport because they are the main constituents of various electron carriers.

In INVERTEBRATES the notochord does not CHANGE into VERTEBRAL column but in vertebrates notochord changes into vertebral column that might be cartilaginous as in Chrondrichthyes or bony as in Osteioichthyes.

Thats why we say all vertebrates are chordates but all chordates are not vertebrates

Progeria, also known as Hutchinson-Gilford progeria syndrome (HGPS), is a rare genetic condition that causes a child's body to age fast. Most KIDS with progeria do not live past age 13. The disease affects both sexes and all races EQUALLY. It affects about 1 in every 4 MILLION BIRTHS worldwide

Types of Population Interaction

In nature, all organisms and their populations INTERACT with one ANOTHER to some degree or the other. That is how an ecosystem works perfectly! This population interaction is GENERALLY between two DIFFERENT SPECIES populations. These interactions can be beneficial or neutral or detrimental. Accordingly, there are six types of population interaction.

Your ANSWER is OPTION FIRST that is
A is FOUNDER.
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Fixed membrane receptor mechanism

The hormones that are protein or amines in compositions such as Growth hormone, ADH, oxytocin, Insulin, Adrenaline, FSH, TSH etc SHOWS this mechanism of action.

These hormones are water soluble and cannot passes through the lipid membrane and they have their target receptor on the cell membrane. The receptor are fixed on the cell membrane, so hormone can bind on the specific receptor.

Binding of hormone on specific receptor on target cell activates the enzyme Adenylcyclase in the cell membrane and causes production of cyclic AMP (cAMP).

cAMP act as secondary messenger. It diffuse through the cell membrane and activates (Protein Kinase) various enzymatic REACTION to cause BIOCHEMICAL changes. After the target cell responded to the changes, cAMP is deactivated by a group of enzyme Phosphodiesterase



Figure: Fixed membrane receptor mechanism of hormone action( EG. FSH)

Mobile receptor mechanism

The lipid soluble hormones such as steroid hormones and Fatty ACIDS hormones can easily passes through the plasma membrane.

They have their receptor inside the cell, freely floating in the cytoplasm. Binding of hormone to the specific receptor activates the enzymatic activity of the cell for biochemical changes.

Some hormones (testosterone, progesterone, estrogen, cortisol, thyroxine) have their receptor localized inside the nucleus, the hormone-receptor complex are carried inside the nucleus.

The hormone-receptor complex initiate transcription of the DNA to form specific mRNA.

mRNA initiate protein synthesis in the cytoplasm. The protein (enzyme) causes biochemical changes in the cell.

Liver ACT as an osmoregulatory organ by detoxifying many toxic chemicals such as food additives drugs and metabolic waste. It also EMULSIFIES FAT with the HELP of BILE.

ANSWER:-
OPTION C)ADAPTATION .
Darwin's process of NATURAL selection has four components.

Variation. Organisms (within populations) exhibit individual variation in appearance and BEHAVIOR. ...

Inheritance. Some TRAITS are consistently passed on from parent to offspring. ...

High rate of population growth. ...

DIFFERENTIAL survival and reproduction.
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If no medical issue is CAUSING you to burp, you MIGHT try some of these:
Eat or drink more slowly. You're less likely to SWALLOW air.
Don't eat things like broccoli, cabbage, beans, or dairy products. ...
Stay AWAY from SODA and beer.
Don't chew gum.
Stop smoking. ...
Take a walk after eating. ...
Take an antacid.

Dense Connective Tissue. Dense connective tissue CONTAINS more collagen FIBERS than does loose connective tissue. As a CONSEQUENCE, it displays greater RESISTANCE to STRETCHING. ... The dermis of the skin is an example of denseirregular connective tissue rich in collagen fibe

He was not able to explain how positively CHARGED particles are shielded from negatively charged particles without GETTING NEUTRALISED.

The ANSWER is....

D.Mitochondria

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Answer:

During PHOTOSYNTHESIS, OXYGEN is produced along with glucose (not a GAS)

Explanation:

Plants use photosynthesis as a way of producing glucose. They take in light energy from the SUN and water and CARBON dioxide from the air. This is then used to produce oxygen and glucose. This often considered a reversible reaction, as the reverse of this reaction (glucose and oxygen to water, carbon dioxide and energy) is respiration.

Thecodont is the embedded in socket and have well developed roots and it is PRESENT in MAMMALS and crocodiles..

We have a set of temporary teeth which are replaced by set of permanent teeth...

Such type of dentition is DIPHYODONT