Explore topic-wise InterviewSolutions in Current Affairs.

Answer:

Members of one class of cnidarians, the ANTHOZOA, EXHIBIT only the polyp BODY FORM; most species of the other three classes (hydrozoans, scyphozoans, and cubozoans) alternate in their life cycles between POLYPOID and medusoid (free-swimming) body forms.

Explanation:

Answer:

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Answer:

KANGAROO RAT is the ANIMAL that never drinks water in its entire LIFE

Answer:

please complete the QUESTION completly so that I COULD answer

Explanation:

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Oxysomes REFERS to small round structures present within the folds of the CRISTAE of the INNER mitochondrial membrane.

It is also known as F0-F1 particles.

F0 and F1 particles are found in the inner mitochondrial region and are attached to the cristae and help in ATP production and oxidation.

So, the CORRECT answer is 'Inner mitochondrial membrane'.

Answer:

HEY mate here is your answer

Explanation:

The process by which plants MAKE their own FOOD with the HELP of water from SOIL and carbon dioxide from air in the presence of sunlight and chlorophyll is called Photosynthesis

Explanation:

Some important METHODS by which grains are store safely are here By storing them in granaries. If the MOISTURE is very HIGH the grains should be dried before long term storage. We must take care of TEMPERATURE as High temperature and moisture favour DEVELOPMENT of insects and moulds

Answer:

The biology of natural selection is an enduring mystery, as is the nature of Charles Darwin’s chronic illness. Of the theories advanced to EXPLAIN the LATTER, Oedipal conflicts and Chagas’ disease are preeminent. Hypomania, however, PROPELLED Darwin to the pinnacle of scientific achievement and good health, the depression that followed condemning him to intellectual stagnation, lethargy, impaired memory and concentration, and incapacitating gastrointestinal disorders. Examples of natural selection in HUMANS are much sought after when, ironically, one need LOOK no further than Darwin himself.

Explanation:

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Answer:

Diploid is a cell or organism that has paired CHROMOSOMES, ONE from each parent. In humans, cells other than human SEX cells, are diploid and have 23 pairs of chromosomes. Human sex cells (EGG and sperm cells) contain a single set of chromosomes and are KNOWN as haploid.

Explanation:

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The incorrect statement is D) Genes cannot acquire mutations in their sequence

Explanation:

• There are MANY REASONS for mutations in the genomic sequence.

• Some of the mutations are inherited whereas others can arise due to the environment or mistake by the DNA POLYMERASE enzymes.

• Mutations arise more frequently due to error of the DNA polymerase. Most of the TIMES, these mutations are detected and repaired.

• Other times. these mutations might arise in the non- coding sequence of the DNA.

ANSWER:

AMOEBA occurs through a process called phagocytosis where the entire organism pretty much ENGULFS the FOOD it plans on eating up. The mode of nutrition in amoeba is known as holozoic nutrition. It involves the ingestion, digestion and egestion of food material.

Explanation:

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Explanation:

Active transport moves molecules and ions from lower concentration to HIGHER concentration with the HELP of energy in the FORM of ATP. On the other hand, PASSIVE transport moves molecules and ions from a higher concentration to lower concentration without any energy.

What's that

I don't UNDERSTAND

ANSWER:

BACTERIA, heartack

Explanation:

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Explanation:

An antigen is any substance that CAUSES your immune system to produce antibodies against it. This MEANS your immune system does not recognize the substance, and is TRYING to FIGHT it off. An antigen may be a substance from the ENVIRONMENT, such as chemicals, bacteria, viruses, or pollen.

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How Air Gets Polluted?

The fossil fuel, firewood, and other things that we burn PRODUCE oxides of carbons which got released into the ATMOSPHERE. Earlier there happens to be a large number of trees which can easily filter the air we breathe in. But with the increase in demand for land, the PEOPLE started cutting down of trees which caused deforestation. That ultimately reduced the filtering capacity of the tree.

Moreover, during the last few DECADES, the numbers of fossil fuel burning vehicle increased rapidly which increased the number of pollutants in the air.

Causes Of Air Pollution

Its causes include burning of fossil fuel and firewood, smoke released from factories, volcanic eruptions, forest fires, bombardment, asteroids, CFCs (Chlorofluorocarbons), carbon oxides and many more.

Besides, there are some other air pollutants like industrial waste, agricultural waste, power plants, thermal nuclear plants, etc.

Greenhouse Effect

The greenhouse effect is also the cause of air pollution because air pollution produces the gases that greenhouse involves. Besides, it increases the temperature of earth surface so much that the polar caps are melting and most of the UV rays are easily penetrating the surface of the earth.

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Effects Of Air Pollution On Health

The air pollution has many bad effects on the health of people. It is the cause of many skins and respiratory disorder in human beings. Also, it causes heart DISEASE too. Air pollution causes asthma, bronchitis, and many other diseases.

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Answer:

AMOEBA occurs through a process called phagocytosis where the entire organism PRETTY much engulfs the FOOD it plans on eating up. The MODE of nutrition in amoeba is known as holozoic nutrition. It involves the ingestion, digestion and EGESTION of food material.

Explanation:

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Answer:

It is widely believed that Darwinian natural selection is responsible, but new research suggests that a SEPARATE NEUTRAL (nonadaptive) process has made a significant CONTRIBUTION to human evolution

Explanation:

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Right ANSWER is:- 3. Agriculture.

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Answer:

The photosynthesis equation is as follows: 6CO2 + 6H20 + (energy) → C6H12O6 + 6O2 CARBON DIOXIDE + water + energy from light produces glucose and oxygen. ... In most PLANTS, water is supplied from the roots, with the leaves collecting carbon dioxide via the stomata and sunlight CAPTURED by the chloroplasts in the leaves.

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ANSWER:

Acute conditions are severe and sudden in onset. This could describe anything from a broken bone to an asthma attack. A CHRONIC condition, by CONTRAST is a long-developing SYNDROME, such as osteoporosis or asthma. NOTE that osteoporosis, a chronic condition, may cause a broken bone, an acutecondition.

ANSWER:

DINOFLAGELLATE ..........................

ANSWER:

1 hairy : 1 smooth

Explanation:

•• if heterozygous condition produces hairy stem, it MEANS hairy stem is a dominant character.

now, let it's genotype by "AA"

•• if pure breeding plant produces smooth stem, it means it is a receive homozygous condition, infered from 2ND STATEMENT.

now, let the genotype be "aa"

•• now, cross these two and the result will be --> Aa * aa = Aa, Aa, aa, aa

•• Hence, two Are smooth and two hairy.... so, answer is option 1

Umm..... I guess c) PREVENT the ENTRY of GERMS into it

EXPLANATION:

The alternation of generations allows for both the dynamic and volatile act of sexual reproduction and the steady and consistent act of ASEXUAL reproduction. When the sporophyte creates spores, the cells undergo meiosis, which allows the gametophyte generation to recombine the genetics PRESENT.

Answer:

ALEUROPLASTS or LEUCOPLAST are the some plastids which involve in storage .

Explanation:

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ANSWER:

PROTEOLYSIS i am not SURE but i THINK this is the answer..

ANSWER:

answer is C..........

Explanation:

A bone is a hard connective TISSUE, while CARTILAGE is soft connective tissue. Bones form the skeletal STRUCTURE of the body, WHEREAS cartilage is present in nose, ear, RIBS, larynx, and joints and also act as a shock absorber in these joints.

Answer:

TILING HELPS in removal of weeds

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AnsWer :

Neuron is the structural and functional unit of nervous system.

It is covered by neurilemma and is made of two distinct regions as cyton and cytoplasmic extensions.

Cyton:

• Cyton or cell body is called PERIKARYON or soma. It has granular cytoplasm with large number of network of neurofibrils, various cell organelles like mitochondria, Golgi complex, RER and centrally placed nucleus. The granules present in cytoplasm are conical, rich in RNA and are involved in protein synthesis. These are called NISSL's granules.

Cytoplasmic extensions:

• Two types of cytoplasmic extensions are found arising from the cyton, namely dendrons or dendrites and axon

a. Dendrites:

• Dendrites thin, small cytoplasmic extensions seen in the periphery of the cyton or cell body of neuron.

• These are many in number and break into numerous fine branches which help to carry impulses towards the cell body and are provided with few of the neurofibrils.

b. Axon:

• Axon is the long cytoplasmic process useful in conduction of impulse away from the cell body.

• It is lined by axonal membrane and encloses cytoplasm called axoplasm.

• The axoplasm is in continuation with the cytoplasm of cyton.

• It contains large number of mitochondria, RER and neurofibrils, but lacks Nissl's granules and golgi complex.

• The axon, throughout the length is wrapped by Schwann cell which forms INSULATING myelin sheath.

• Neuron with myelin sheath are called myelinated neurons.

• In certain animals , neuron lacks the myelin sheath and thus, have non-myelinated neurons.

• The terminal end of the axon in both myelinated and non-myelinated neurons shows PRESENCE of many swollen knob like structures called telodendrons.

• They are filled with neurosecretory (acetylcholine and adrenaline) material which act as NEUROTRANSMITTER.

Characteristics of connective TISSUE:

• Connective tissue ranges from avascular to highly vascular.

• Composition: Composed mainly of nonliving extracellular matrix that separates the cells of the tissue.

• Location: It is present in between different tissue and organs. It can be found in and around the body organs. skeletal tissue present in the form of bone and cartilage, and FLUID connective tissue as blood and lymph are connective tissue.

Function of connective tissue:

1. It binds various tissue together like SKIN with the muscles and muscles with bones
2. It form inter cellular substance between cells of different types of tissue, so that help in FRICTION less movement of the body organ
3. It forms sheaths around the body organs and make a kind of packaging tissue
4. The areolar tissue protects the body against wound and infection
5. There adipose tissue stores fats and insulates the body against heat loss
6. The supportive tissue forms shape and the frame work of the body
7. The haemopoitic tissue produce blood
8. The lymphatic tissue helps in body immunity

Explanation:

लिंग (SEX, Gender) से तात्पर्य उन पहचानों या लक्षणों से जिनके द्वारा जीवजगत् में नर को मादा से पृथक् पहचाना जाता है। जंतुओं में असंख्य जंतु ऐसे होते हैं जिन्हें केवल बाह्य चिह्नों से ही नर, या मादा नहीं कहा जा सकता। नर तथा मादा का निर्णय दो प्रकार के चिह्नों, प्राथमिक (PRIMARY) और गौण (secondary) लैंगिक लक्षणों (SEXUAL characters), द्वारा किया जाता है। वानस्पतिक जगत् में नर तथा मादा का भेद, विकसित प्राणियों की भाँति, पृथक्-पृथक् नहीं पाया जाता। जो की सत्य है।

Answer:

In BIOLOGY, the TISSUE is a cellular organizational level between CELLS and a complete organ. A tissue is an ensemble of similar cells and their extracellular matrix from the same origin that together carry out a specific function. Organs are then formed by the functional grouping together of MULTIPLE tissues.

Explanation:

Explanation:

7.(a)Explain how does the exchange of GASES occur in plants across the surface of stems, roots and leaves.

(b) How are water and MINERALS transported in plants ?

Answer.

(a) In plants there are tiny pores called STOMATA on leaves and lenticels in stem which facilitate the exchange of gases. Carbon dioxide is taken in and oxygen given out {during photosynthesis} and vice versa during respiration.

(b) Water and minerals are transported within the plant by the Xylem VESSELS (mainly in an upward direction); these are part of the vascular system which also includes Phloem vessels.

Phloem TRANSPORTS the products of photosynthesis within the plant, to all parts like the stem, roots, fruits etc. in all directions

The arc represents the pathway of nerve signal taking a U-turn right from spinar cord which if DRAWN TAKES the shape of an INCOMPLETE CIRCLE or an arc.

Answer:

The SHELLS of BIRD eggs are composed of calcium CARBONATE and are hard, but fragile. The shells of reptile eggs are leathery and require a moist environment.

Explanation:

Answer:

ANSWER

In the given FIGURE, A represents the pollen grain, B represents the pollen tube, C represents the ovary, D represents the FEMALE germ cell.

After fertilization,

(i) The ovule develops into a SEED.

(ii) The ovary develops into a FRUIT

ANSWER:

EXPLANATION:

SPRAYING WEEDICIDES or herbicides

2d

Manual REMOVAL

ANSWER: Echinopluteus

explanation -There is a single larval stage in echinoidea CALLED Echinopluteus which is bilaterally symmetrical. The larva has oval body and long PAIRED ciliated arms that are supported by CALCAREOUS skeletal rods. Preoralarm is present but posterolateral arm is absent. The other three arms are ANTEROLATERAL, postoral and posterodorsal arms. Mouth, anus and gut are well developed.

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Explanation:

Because the cell wall prevents a cell from expanding, some proteins in the matrix are responsible for loosening the structure of the wall when a cell grows. In addition, the porosity of the matrix PERMITS soluble factors to diffuse ACROSS the cell wall and INTERACT with receptors on the plant PLASMA membrane.

Explanation:

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मिलियन मिलियन मिलियन मिलियन मिलियन करोड़

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Answer:

Inside the air sacs, OXYGEN moves across paper-thin walls to tiny blood vessels called capillaries and into your blood.

A protein called HAEMOGLOBIN in the red blood CELLS then carries the oxygen around your body. At the same time, carbon dioxide that is dissolved in the blood comes out of the capillaries back into the air sacs, ready to be breathed out.Oxygen and the alveoli

Blood with fresh oxygen is carried from your lungs to the left side of your heart, which pumps blood around your body through the arteries.

Blood without oxygen returns through the veins, to the right side of your heart. From there it is pumped to your lungs so that you can breathe out the carbon dioxide and breathe in more oxygen.

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Explanation:

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ANSWER:

Septate hyphae: The hyphae that are COMPOSED of individual cells separated from one ANOTHER by cell walls.

Aseptate hyphae: There are no cell walls in the individual cells and their nuclei are spread THROUGHOUT the hypha.

EXPLANATION:

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Answer:

CONNECTING link is an organism having characteristics of two different group of organisms e.g, duck-billed platypus ( scientific name Ornithorhynchus anatinus) is a connecting link between reptiles and mammals i.e, it has MAMMARY glands to feed its YOUNG ones like other mammals e.g HUMAN being, cow, BUFFALO etc., and ...

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Answer:

Fish have a two-chambered heart with UNIDIRECTIONAL circulation. ... Most non-avian reptiles have a three-chambered heart, but have LITTLE mixing of the blood; they have DOUBLE circulation. Mammals and birds have a four-chambered heart with no mixing of the blood and double circulation.

Explanation:

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Answer:

EXPLANATION:Evolution and Basic concept.

The syllabus has REMOVED from PAGE no.-147.

This MEAN that you have to study this chapter from page no. -144-146.

This chapter is now BECOME very Easy