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ogical data are features of EXTERNAL FORM or appearance.Provide nearly all the characters USED for plant identificationAlso useful in PHYLOGENETIC studies and other SYSTEMATIC studies

The STUDY of TISSUES is CALLED HISTOLOGY.

The BRAIN is one of the largest and most complex organs in the human body. It is made up of more than 100 billion nerves that communicate in trillions of CONNECTIONS called synapses. The brain is made up of many specialized AREAS that work together: ... The brain stem is between the spinal CORD and the rest of the brain.

What is Meristematic Tissue?Carl Wilhelm von Nägeli coined the term “meristem.” Meristematic tissue contains UNDIFFERENTIATED cells, which are the building blocks of the specialized plant structures.Meristematic tissues contain living cells with varied shapes. They possess a large nucleus devoid of the vacuole. The cells have no intercellular space. The zone where these cells exist is known as meristem.The cells of the meristematic tissue divide actively to form specialized structures such as buds of leaves and flowers, TIPS of roots and shoots, etc. These cells help to increase the length and girth of the plant.Let us have a DETAILED look at the characteristics and types of meristematic tissue.Characteristics of Meristematic TissueThe characteristics of meristematic tissue are as FOLLOWS:The cells of these tissues are commonly called meristems.The meristematic tissue has the quality of self-renewal. EVERY time the cell divides, one cell remains identical to the parent cell, and the others form specialized structures.They have very small and few vacuoles.The meristematic tissue is living and thin-walled.The protoplasm of the cells is very dense.The meristematic tissues heal the wounds of an injured plant.The cells of the meristematic tissue are young and immature.They do not store food.They exhibit a very high metabolic activity.They possess a single, large and prominent nucleus.

The GLUCOSE that is not used IMMEDIATELY by the plant is stored in the CHLOROPLAST and cytoplasm as STARCH. This starch can later be HYDROLYZED back into glucose when needed

r:Explanation:Xylem is a conductive tissue: Xylem is also called conducting tissues because they are involved in the transportation of food and water throughout the plant. The cells of the epidermis are tightly packed together forming a mechanical barrier Adipose tissue acts as an insulator of heat Adipose tissue acts as an insulator in the body due to its fat storage. Fat molecules are bad conductors and therefore do not allow the conduction of heat and in this WAY, they act as an insulator due to storage of fat molecules.Cardiac muscle works WITHOUT rest The massive amount of energy-generators means cardiac muscle, in a healthy STATE, need never rest: there is always some energy being transferred to the muscle at the same time that more energy is being derived from caloric intakeEpidermis provides protection to plants: Epidermis outermost, protoderm-derived layer of cells covering the STEM, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical INJURY, water loss, and infection.

otic and Eukaryotic Cells are the TWO broad classification of cells. The Prokaryotic is made up of two WORDS which are "PRO" meaning before and "KARYON" meaning NUCLEUS. On the other hand, Eukaryotic came from two words "eu" meaning true and "karyon" meaning nucleus.

Fungus, plural fungi, any of about 144,000 known species of organisms of the kingdom Fungi, which includes the yeasts, rusts, smuts, mildews, molds, and mushrooms. ... Many fungi are free-living in soil or WATER; OTHERS FORM parasitic or symbiotic RELATIONSHIPS with PLANTS or animals.

hiii.3 is the CORRECT ANSWER so VOTE me

A reversible process is defined as a process in which the system and SURROUNDINGS can be RETURNED to the original conditions from the final state without PRODUCING any CHANGES in the thermodynamics properties of the universe, if the process is reversed.HOPE IT WILL HELP U!!!!!

tion:The process by which two gametes (REPRODUCTIVE cells having a single, haploid set of CHROMOSOMES) fuse to become a ZYGOTE, which DEVELOPS into a NEW organism.

If the TOPSOIL is eroded the most fertile part of the SOIL will lost ,and the soil BECOMES less fertile for cultivation.Explanation: the topmost  layer of soil contains humus and THEREBY is the most fertile part.hope you liked the answer .....plz mark me as brainliest....

These proteins include KERATIN, COLLAGEN and elastin, which help form the CONNECTIVE framework of CERTAIN structures in your body Collagen is the most abundant protein in your body and is the structural protein of your bones, tendons, ligaments and skin

fission is a kind of asexual REPRODUCTION. It is a common type of reproduction FOUND in BACTERIA and protists like Amoeba in which the fully grown PARENT cell splits into two halves, producing two new cells. After replicating its genetic material, the parent cell divides into two EQUAL sized daughter cellsHope it's help you

tion:I THINK the correct statement is PLANTS and ANIMALS are made up of cells

My name is SHRI . I am studying IXth STANDARD . I love to draw and doing some CRAFTS .

1 The three Rs that will help us to conserve NATURAL resources and MINIMISE their wastage are(a) recycle regenerate, reuse(b) reduce NOVONORATE, reuse(C) reduce noise redistribuneidrodice NOODLE house

Protective tissues are usually present in the outermost layer of the plant body such as leaves, STEM and roots and offer PROTECTION to the plant body. They prevent desiccation, MECHANICAL injury, and infection in plants. TYPES of protective tissues: Epidermis.

The oxygen solubility, SO2 , EXPRESSES the oxygen concentration in SOLUTION in EQUILIBRIUM with the oxygen pressure in a gas PHASE

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the onion and remove it's peel from the inner surface of onion. 2] Put the peel in a CONTAINING water. 3] Add few DROPS of into the to stain the peel. 4] Remove the peel with the HELP of and put it on clean along with few drops of water and provide the shape by CUTTING i

tion:In 1892, Dmitri Ivanovsky used ONE of these FILTERS to show that sap from a diseased tobacco plant REMAINED infectious to healthy tobacco plants despite having been filtered. Martinus Beijerinck CALLED the filtered, infectious substance a "virus" and this discovery is considered to be the beginning of virology.

A fertilized egg, or zygote, takes about five days to reach the uterus from the uterine TUBE. As it MOVES, the zygote divides and develops into a blastocyst, with an inner mass of cells and a protective outer ring. The blastocyst attaches to the wall of the uterus and gradually implants itself into the uterine lining.Explanation:◉LET'S EXPLORE MORE✯Zygote DefinitionA zygote is the first diploid cell that is formed by the fusion of male and female gametes resulting in the formation of an embryo.✯What is Zygote?A zygote is a fertilized ovum. The germ cells undergo meiosis to reach a haploid state (n) as part of spermatogenesis and oogenesis. The sperm and the unfertilized ovum reinstates a chromosome set in zygote in a diploid state (2n).After fusing with the sperm, the second stage of meiosis takes place for separation of chromatids. Post-fertilization, mitosis of the zygote is initiated which develops into a mature offspring exhibiting characteristics of its parent.In the course of the menstrual cycle, ovulation occurs through one of the ovaries after 14 days of the cycle after which the ovum proceeds towards the fallopian tube. Sperm enters through the cervix to reach the fallopian tube where fertilization is facilitated by the lining of the cells. These linings project tiny needle-like structures called the cilia, which propel the zygote to the uterus to form a blastocyst (ball of cells) where cells undergo divisions.If fertilization does not occur, the zygote moves down to the uterus resulting in the onset of menstruation.Zygote serves as a vital link ensuring species continuation from the present to the next generation. EVERY sexually reproducing entity initiates life processes with the formation of zygote.Zygote forms the first stage in the development of a unique entity. It CONTAINS all the vital factors essential for the development as they occur as an encoded set of information in the makeup of chromosomes.The activation of the zygote to produce proteins occurs only after it undergoes a series of divisions into cleavage. The formation of blastomeres serves as building units for the potential organism.It is a result of the formation of the zygote that the diploid cell is formed containing DNA information. It is during this stage, that the chromosomal gender of the new individual is decided. Zygote formation also brings about cleavage division for the stage of embryogenesis.✯Formation Of ZygoteThe earliest form of zygote shows pronuclei where haploid germ cells from the male and female fuse with each other, breaking down the nuclear membrane, but they do not merge. Hence, they are single nucleic cells at this point.The first stage of mitotic division occurs where genetic information is exchanged and chromosomes are paired, resulting in DNA replication at the spindle apparatus of the equator brought about by – the spermatozoa (centrioles) and the oocyte contributing the mitochondria. Thus, the first new cell – the zygote, with a chromosomal makeup of 2n4c is formed due to the alignment of chromosomes from both the sets at the spindle.✯Development of ZygoteThe development of zygote takes place in several stages mentioned below:The zygote rapidly divides after the first 12-24 hours of formation ↓The cell mass forms a hollow ball during blastulation ↓Cells start differentiating and form cavities ↓The three germ layers form during gastrulation ↓Formation of primitive streak followed by notochord formation ↓Tubes are formed making a neurula ↓The notochord forms the neural plate ↓The neural plate folds to form a neural tube and neural crest ↓The mesoderm is divided into axial, paraxial, intermediate and lateral plate mesoderm, which gives rise to different organs.The zygote undergoes rapid mitotic division to make a lot of new cells.With each round of cell division, the cells of a zygote double in number, i.e., the cell number increases at an exponential rate. Due to rapid division, the cells do not have any time to grow and therefore the 32 cell stage known as morula is the same size as the zygote. The zona pellucida remains intact, which also regulates the growth of the morula.After four days, the cells begin to differentiate and develop more specific forms and functions.It divides into two layers:☆Trophoblast This is the outer layer that develops into structures that help in the implantation of the embryo in the mother’s uterus.☆The inner cell mass This is the inner layer and comprises pluripotent cells. They get differentiated into the cells of any body tissue. Here the zona pellucida begins to disappear.The rest of the fluid-filled cavity is known as the blastocoel.During the second week, the cells further differentiate into epiblast and hypoblast.

because when cell is GOING to dye at that TIME they DIGEST their own cellExplanation:PLS follow me for more help

prefer to it childExplanation:Unifying characters of archegoniates:Present of SEXUAL organs the female CALLED ARCHEGONIUM and the male called the antheridium. The presence of Chloroplasts containing CHLOROPHYLL a, b and carotene. The presence of multicellular GAMETOPHYTIC and sporophytic generation. Heteromorphic alternation of generation.....

Although you may not typically THINK of the skin as an ORGAN, it is in fact made of tissues that work together as a single structure to perform unique and critical FUNCTIONS. The skin and its accessory structures make up the integumentary system, which provides the body with overall protection. The skin is made of multiple layers of cells and tissues, which are held to underlying structures by connective tissue (Figure 5.1.1). The most superficial layer of the skin is the epidermis which is attached to the DEEPER dermis. Accessory structures, hair, glands, and nails, are found associated with the skin. The deeper layer of skin is well vascularized (has NUMEROUS blood vessels) and is superficial to the hypodermics. It also has numerous sensory, and autonomic and sympathetic nerve fibers ensuring communication to and from the brain.

nately, taxonomy is not a democratic science. You ASKED for the number of CLASSES. There are 108 classes of animals according to WIKIPEDIA, others estimate about 94. The number of ORDERS you asked for is about 420 to 450, this is a ROUGH estimate.

Like salt water ALSO has an osmotic effect i.e. when foods are placed in a concentrated sugar solution water is DRAWN out of the cells of foods and microorganisms so that microorganisms can no LONGER survive. ... Sugar is also used with salt to preserve CERTAIN foods ESPECIALLY fish and meat.

Taxonomy - Acanthamoeba polyphaga (Amoeba) EXPLANATION:MARK as brainliest PLS

Pick out the correct statements from the following.(a) Electron EMISSION during β-decay is always accompained by neutrino(b) Nuclear FORCE is charge independent(c) Fusion is the chief SOURCE of STELLAR ENERGY

The locomotory organ of Amoeba is temperory EXTENSIONS of the cytoplasm called PSEUDOPODIA.... The locomotory organ of Euglena is long whip like organ called FLAGELLA.... The locomotory organ in Paramecium is SHORT hair like STRUCTURES called CILIA. HOPE it helps.

However, under anaerobic conditions, only 2 mol of ATP can be produced. AEROBIC glycolysis OCCURS in 2 steps. The first occurs in the CYTOSOL and involves the conversion of glucose to pyruvate with resultant production of NADH. This process alone GENERATES 2 molecules of ATP.

By the PROCESS of gluconeogenesis , it GETS converted into glycogen which gets up in the liver and the muscles of the BODY ......

what LANGUAGE is that ...???..................

confusing Explanation:PLEASE tell the SECOND STATEMENT you are saying to choose but u have GIVEN only 1 statement

Bacteria play important roles in the global ecosystem.The ecosystem, both on land and in the WATER, depends heavily UPON the ACTIVITY of bacteria. The cycling of nutrients such as carbon, nitrogen, and sulfur is completed by their ceaseless labor.Explanation:hope this helps u PLS Mark me as brainliest