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Pawni Chaudhary 5 years, 5 months ago
Yogita Ingle 5 years, 6 months ago
Hibiscus is a plant that does not produce any fruit or you can say that the fruit id hidden.
The fruit of the hibiscus flower is the five lobed pod or capsule just below the flower.
The lobs of pods contain seeds like any other fruit. So, the hibiscus plant does not have any distinct fruit.
Posted by Abhishek Maurya 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Some of the primary consumers or herbivores living on the land are chipmunks, mice, horses, birds, deer and some insects. Fish, zooplankton, snails, sea urchins are a few marine primary consumers.
These are animals who feed on primary consumers. They usually eat meat and are termed as predators. Lion, hawks, snakes, coyotes, wolves, and spiders are a few terrestrial secondary consumers.
They are the ones who feed on secondary consumers. They are thus called the top predators. They are also termed as apex predators and have no natural enemies. Naturally, you would assume that humans are at the top of the food chain, but they are not.
Posted by Akshita Karn 5 years, 6 months ago
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Meghna Thapar 5 years ago
The germ layers represent some of the first lineage-specific (multipotent) stem cells (e.g., cells destined to contribute to specific types of tissue, such as muscle or blood) in embryonic development. Hence, each germ layer eventually gives rise to certain tissue types in the body. A germ layer is a group of cells in an embryo that interact with each other as the embryo develops and contribute to the formation of all organs and tissues. The major internal organs and external features begin to emerge, forming an embryo. In this stage, the heart, brain, and spinal cord become visible. Arms and legs start to develop. Fetal stage: Once the formed features of the embryo begin to grow and develop, the organism is considered a fetus.
Posted by Aditya Chauhan 5 years, 6 months ago
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Insha Khalid 5 years, 6 months ago
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Macronutrients mainly include carbohydrates, proteins and fats and also water which are required in large quantities and their main function being the release of energy in body. Macronutrients include Carbon, Oxygen, Hydrogen, and Nitrogen.
Posted by Phurba Zangmu Sherpa 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
Seeds offer the following advantages to angiosperms:
(i) They provide nourishment and parental care to the developing embryo.
(ii) They protect the embryo from harsh environmental conditions.
(iii) The dispersal of seeds to far-off places prevents competition among the members of the same species, thus preventing their extinction.
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Yogita Ingle 5 years, 6 months ago
During binary fission parent cell divides to produce two equal cells that give rise to two new individuals, e.g., bacteria and amoeba.
Hence in amoeba nucleus is the parent cell which is duplicated.
So the correct option is B.
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Yogita Ingle 5 years, 6 months ago
Mucous cells are located on the surface and in the neck of the gastric glands (GGs).
Posted by Sapthagirish Dk 5 years, 6 months ago
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Meghna Thapar 5 years, 1 month ago
Pollen is basically plant sperm. That's right, when trees, flowers, and other types of flora are looking for love, they send out their dust to hitch rides on air currents, insects, or whatever else it can land on to spread their genetic material. Many people have an adverse immune response when they breathe in pollen. The immune system normally defends the body against harmful invaders — such as viruses and bacteria — to ward off illnesses. In people with pollen allergies, the immune system mistakenly identifies the harmless pollen as a dangerous intruder.
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In amphibians, syngamy occurs in water outside the body of the organism (external fertilisation and external development). In reptiles, syngamy occurs inside the body of the female (internal fertilisation and external development).
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Yogita Ingle 5 years, 6 months ago
Vegetative propagation is done with the help of vegetative parts such as roots, stem or leaves.
The offset of pistia is vegetative propagation and its structure is called vegetative propagule and it grows in standing water and it is a subaerial modified stem that takes part only in vegetative propagation and storage is absent.
Posted by Apurva Behl 5 years, 6 months ago
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Yogita Ingle 5 years, 6 months ago
The reproductive cycle starting from the one menstruation till the next one in the female primates is called menstrual cycle. The first menstruation which begins at puberty and is called menarche . The cycle is repeated at an interval of 28-29 days. Menstrual cycle involve three phases- menstrual phase, follicular phase and luteal phase.
Menstrual phase-
- Menstrual flow occurs and lasts for about 3-5 days.
- The endometrial lining of the uterus breaks along with the blood vessels which forms a red fluid and results in menstrual flow.
- If the ovum is fertilized by a sperm menstrual flow does not occur and hence indicates pregnancy.
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Yogita Ingle 5 years, 6 months ago
Cilia
The number of flagella is comparatively less (usually ranges from 1 to 8)
Cilia is usually shorter in length
Beating pattern of Flagella involves circular, wave-like or propeller-like motion
Found in Eukaryotic cells
Flagella are of three types: Bacterial flagella, Archaeal flagella and Eukaryotic flagella
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