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in 59 minutes as cell divides every minute so at 59 minutes it will be half of beaker and at 60 mins it will divide to fill the beaker

1. Living characteristics of viruses

a. Theyreproduceat a fantastic rate, but only in living host cells.

b. They canmutate.

2. Nonliving characteristics of viruses

a. They areacellular, that is, they contain no cytoplasm or cellular organelles.

b. Theycarry out no metabolism on their own and must replicate using the host cell's metabolic machinery. In other words, viruses don't grow and divide. Instead, new viral components are synthesized and assembled within the infected host cell.

c. Thevast majority of viruses possess either DNA or RNA but not both.

9(2x-y)² - (3x-2y)²(6x-3y)² - ( 3x-2y)²(6x-3y - (3x-2y)) (6x-3y + 3x -2y)( 3x-y)(9x-5y)

The small intestine or small bowel is the part of the gastrointestinal tract between the stomach and the large intestine, and is where most of the end absorption of food takes place

I want whether in ileum ,jejunum or duodenum

Absorption of the majority of nutrients takes place in the jejunum, with the following notable exceptions:

Iron is absorbed in the duodenum.

Vitamin B12 and bile salts are absorbed in the terminal ileum.

Water and lipids are absorbed by passive diffusion throughout the small intestine.

Sodium bicarbonate is absorbed by active transport and glucose and amino acid co-transport.

Fructose is absorbed by facilitated diffusion.

but more no of villi are present in ileum so why the ans is not ileum

Blood clotting, or coagulation, is the process that controls bleeding when a blood vessel is injured. This process involves proteins orblood clotting factors. Normally, a complex process occurs using these clotting factors that trigger the formation of a fibrin clot that stops bleeding.

this is coagulation in blood types. please mark me best.

Coagulation, also known asclotting, is the process by whichbloodchanges from a liquid to a gel, forming abloodclot. It potentially results in hemostasis, the cessation ofbloodloss from a damaged vessel, followed by repair.

Coagulation(also known asclotting) is the process by whichbloodchanges from a liquid to a gel, forming ablood clot. It potentially results inhemostasis, the cessation of blood loss from a damaged vessel, followed by repair. The mechanism of coagulation involves activation, adhesion, and aggregation ofplateletsalong with deposition and maturation offibrin. Disorders of coagulation are disease states which can result in bleeding (hemorrhageorbruising) or obstructive clotting (thrombosis).

option 2Chromatophoresare found in members of phototrophic bacteria. They contain bacteriochlorophyll pigments and carotenoids andtake partin photosynthesis. In purple bacteria, such as Rhodospirillum rubrum, the light-harvesting proteins are intrinsic to thechromatophoremembranes.

(1)is the best answer

True nucleus is absent in Anabaena.

Anabaena is prokaryotic blue-green alga showing notrue nucleusOption (2)

please solve my more questions

option 4 is the answer.

thanks

Normal pregnancy is accompanied by changes in the coagulation and fibrinolytic systems. These include increases in a number of clotting factors (I, II, VII, VIII, IX and XII).

In humans,implantationis the stage of pregnancy at which the embryo adheres to the wall of the uterus. ... In humans,implantationof a fertilized ovum is most likely to occur around nine days after ovulation; however, this can range between six and 12 days.

Scientists have discovered that air pollution from burning of fossil fuels is the majorcauseofacid rain. ...Acid rainusually forms high in the clouds wheresulfur dioxideand nitrogenoxidesreact with water, oxygen, and oxidants. this mixture forms a mild solution of sulfuricacidand nitricacid.

thanks

Gas vacuolesare aggregates of hollow cylindrical structures calledgasvesicles. They are located inside some bacteria . A membrane that is permeable togasbound eachgasvesicle. The inflation and deflation of the vesicles provides buoyancy, allowing the bacterium to float at a desired depth in the water.

A vacuole is a membrane-bound organelle which is present in all plant and fungal cells and some protist, animal and bacterial cells

it is one of cell original.

it is dustbin of cell where all its waste is collected. e.g. when in plants vacule get filled they fallen there leaves (turns yellow) because the dustbin is filled.

Gas vacuoles are aggregates of hollow cylindrical structures called gas vesicles. They are located inside some bacteria . A membrane that is permeable to gas bound each gas vesicle. The inflation and deflation of the vesicles provides buoyancy, allowing the bacterium to float at a desired depth in the water.

it is a type of carear which have many functions in bacteria and also in plant they absorber excess amount of water and waste material and remove throughout body

A vacuole is a membrane-bound organelle which is present in all plant and fungal cells and some protist, animal and bacterial cells

vacuoleis a membrane-bound organelle. They are a kind of vesicle.Vacuolesare closed sacs, made of membranes with inorganic or organic molecules inside, such as enzymes. They have no set shape or size, and the cell can change them as it wants. They are in most eukaryotic cells and do many things.

Gas vacuole small aggregate cylindrical vessels

Gas vacuoles are aggregates of hollow cylindrical structures called gasvesicles. They are located inside some bacteria . A membrane that is permeable to gas bound each gasvesicle. The inflation and deflation of the vesicles provides buoyancy, allowing the bacterium to float at a desired depth in the water.

A gas vacuole is a membrane-bound organelle which is present in all plant and fungal cells and some protist, animal and bacterial cells.

it is one of cell original...........

a vacuoles is a membrane _ bound organelle which is present in all plant and fungal cells and some protist

gas vacuoles are aggregates of hollow cylindrical structures called gas vesicles

gas vacuoles are vacuoles which give bouyency to organism or plant....it prevent them from drowning in water...🙏🙏and it's a hollow place (space) in living bodh.🙏

these are found in green and purple bacteria

it is adustbin of cell where all its waste is collected.e.g when in plants vacule get filled they fallen there leaves because the dustbin is filled

Gas vacuoles are aggregates of hollow cylindrical structures called gas vesicles. They are located inside some bacteria . A membrane that is permeable to gas bound each gas vesicle.

The inflation and deflation of the vesicles provides buoyancy, allowing the bacterium to float at a desired depth in the water.

Gas vacuoles found in photosynthetic bacteria like BGA. As well as serving functions such as storage waste disposal. Protection and growth

it's a hollow cavity stores gas for maintaining boyancy

.गैस रिक्तिकाएं खोखले बेलनाकार संरचनाओं के समुच्चय हैं जिन्हें गैस पुटिका कहा जाता है। वे कुछ बैक्टीरिया के अंदर स्थित हैं। एक झिल्ली जो प्रत्येक गैस पुटिका को बाध्य करने के लिए पारगम्य है।

The vacuole is the membrane-bound space found in the cytoplasm. It containswater, sap, excretory product and other materials not useful for the cell. Thevacuole is bound by a single membrane called tonoplast. In plant cells thevacuoles can occupy up to 90 per cent of the volume of the cell.In plants, the tonoplast facilitates the transport of a number of ionsand other materials against concentration gradients into the vacuole, hencetheir concentration is significantly higher in the vacuole than in thecytoplasm.

Many aquatic bacteria produce gas vacuoles, which are protein-bound structures that contain air and allow the bacteria to adjust their buoyancy. Bacteria can also have internal membranous structures that form as outgrowths of the cytoplasmic membrane.

gas vacuoles- air vacuoles psevdovacuoles profcuaryates Each are vaicles are mode of sub microscope heragonal vesicles and surrounded by a thir foratein membrame

gas vacuoles are aggregated round cylindrical structure called gas vacuoles

Tonoplast is the cytoplasmic membrane sourrounding the vacuole , Seperating the vacoular contents from the cytoplasm in the cell.hence option b

Correct answer - ii) Vacuoles

Tonoplast is associated with the vacuoles

vacuoles is the correct answer

Tonoplast is the cytoplasmic membrane sourrounding the vacuole , Seperating the vacoular contents from the cytoplasm in the cell.hence option b

correct answer is ii) Vacuoles

tonoplast is the associated with the vacuoles

polar bear has blubber under its skin because it lives in cold temperature

a. Threshing is the process of loosening the edible part of grain from the husks and straw to which it is attached. It is the step in grain preparation after reaping and before winnowing, which separates the grain from the chaff. Threshing does not remove the bran from the grain.

b. Wind winnowing is an agricultural method developed by ancient cultures for separating grain from chaff. It is also used to remove hay and chaff or other pests from stored grain. Threshing, the loosening of grain or seeds from the husks and straw, is the step in the chaff-removal process that comes before winnowing.

c. A crop is a plant or animal product that can be grown and harvested extensively for profit or subsistence. Crop may refer either to the harvested parts or to the harvest in a more refined state. Most crops are cultivated in agriculture or aquaculture.

d. Animal husbandry is the branch of agriculture concerned with animals that are raised for meat, fibre, milk, eggs, or other products. It includes day-to-day care, selective breeding and the raising of livestock.

e. Harvesting is the process of gathering a ripe crop from the fields. Reaping is the cutting of grain or pulse for harvest, typically using a scythe, sickle, or reaper. On smaller farms with minimal mechanization, harvesting is the most labor-intensive activity of the growing season.

The answer is: (d) increases homozygosity.

Parenchyma:Parenchyma cells have thin primary cell walls and lack secondary cell wallsSclerenchyma:Sclerenchyma cells have both primary and secondary cell walls

Large Number of Buyers and Sellers

Homogeneity of the Product

Free Entry and Exit of Firms

PerfectKnowledge of the Market

PerfectMobility of the Factors of Production and Goods

Absence of Price Control

Ans :- Adipose tissues act as a heat indicator.

It is composed of fats.

The loss of heat from the skin is prevented by the adipose tissues which act as an insulating agent.

It is mainly meant for the protective purpose and also provides support to many organs.

Ans :- Adipose tissues act as a heat indicator.

It is composed of fats.

The loss of heat from the skin is prevented by the adipose tissues which act as an insulating agent.

It is mainly meant for the protective purpose and also provides support to many organs.

adipose is the animal tissue which acts as heat insulator

Aim : To prove that plants release oxygen when exposed to sunlight

Apparatus : Testtube, Funnel, Beaker with water, Hydrilla twigs, Glowing incense stick

Procedure :

1) Take a beaker with water and put hydrilla twigs into it2) Invert a funnel over these twigs3) Invert a test tube full of water over the stem of the funnel4) Ensure that the level of water in the beaker is above the level of the stem of the inverted funnel5)Leave the apparatus in the sunlight for few hours

Test:

Remove the test tube carefully by keeping your thumb over the mouth so that the gas doesnt escape.Insert a glowing incense stick into test tube. It bursts in to flames. This gas is oxygen

Result:

This experiment proves that green plants release oxygen when exposed to sunlight

In resonanceas resistance will be moresoless current will pass through resistancethanksoption- A

The vegetative cell is called tube well because it contains the tube nucleus.

FORMATION OF POLLEN GRAINS:-Thepollen tubesprouts from the gametophyte at the stigma, extends down the style and reaches into the ovary. The now fully germinated gametophyte releases its two sperm cells down thepollen tube, where one fertilizes the egg and the other combines with other cells inside of the embryo in the ovule.

Thanking you so much for these time my hell💖💖😁😁

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Thank you didi

a. Blueb. 25%c. 1:1

The botanical name of neetle is Urtica dioica

The main purpose of a greenhouse is securing a reasonable amount of heat and water vapors so that warmth and humidity is maintained within the greenhouse. All- Season Garden: Many gardeners face one common problem and that is not being able to plant certain seeds because of an unsuitable season

Green house provide suitable enovironment( like heat and water vapours )for growth of many plants..so we have green house in botanical gardens..

A green house garden is primerily meant to extend the growing season of prized crops and plants .Horticulture fans should be enthusiastic about green house too, because it allows tjem to grow plants and flowers all season long which can then be brought in to the house.

ORS mix can be prepared and can be given at intervals to a patient suffering from diarrhoea in order to replenish the water and salt content in the body.

Answer :3 Clouds form when invisible water vapor in the air condenses into visible water droplets

Ans :- There are10 teethon both the top and bottom jaw. Each jaw consists of specific teeth, which are incisors (cutting teeth), canines (tearing teeth) and molars (grinding teeth). From the midline of one side of each jaw consists of 2 incisors, 1 canine and2 molars.

(d) lower jaw ..since it has only 1 bone where as wrist has 13 bones ,pelvic girdle 3 bones fused together and external ear is not a bone

clicking

clicking

Clicking device.Its given in the box just above this in the 2nd point

both a and b is the answer

Option (c) both a and b

The age of the Earth is about 4.54 billion years; the earliest undisputed evidence of life on Earth dates from at least3.5 billion years ago.The continents have since repeatedly collided and been torn apart, so maps of Earth in the distant past are quite different to today's. The history of life on Earth began about3.8 billion years ago, initially with single-celled prokaryotic cells, such as bacteria.

p - iii

q - iv

r - ii

s - i