The Secret Life of Pollen: How Long Can It Live? The Secret Life of Pollen: How Long Can It Live? Have you ever wondered how flowers get fertilized? It all starts with tiny pollen grains, the male reproductive units of plants. But these little guys don’t have forever to find their match. Their lifespan, or […]
NCERT-The Secret Life of Pollen: How Long Can It Live? Read More »
Comparison of Chordates and Non-chordates Comparison of Chordates and Non-chordates S.No. Chordates Non-chordates 1. Notochord present. Notochord absent. 2. Central nervous system is dorsal, hollow and single. Central nervous system is ventral, solid and double. 3. Pharynx perforated by gill slits. Gill slits are absent. 4. Heart is ventral. Heart is dorsal (if present). 5.
Comparison of Chordates and Non-chordates Read More »
The Pistil, Megasporangium (Ovule) and Embryo Sac Line 1: The gynoecium represents the female reproductive part of the flower. Explanation: The gynoecium, also known as the pistil, is a specialized structure in a flower responsible for sexual reproduction in plants. It’s the female counterpart to the stamen (male reproductive organ). Line 2: The gynoecium may
NCERT-Part-4-12TH-FOR-NEET-2.2.2 The Pistil, Megasporangium (ovule) and Embryo sac Read More »
Nutritional Modes Ingestive Mode of Nutrition Process Description Ingestion: This is the process by which an organism takes in external food particles into its body. There are two main ways this can happen: Macrophagy: The organism engulfs large food particles using specialized cell structures like pseudopods or phagocytosis. Examples include amoebas and white blood cells.
Explanation of Pollen Viability and Environmental Influences Line 1: Pollen grains of many species cause severe allergies and bronchial afflictions in some people often leading to chronic respiratory disorders– asthma, bronchitis, etc. This line explains that pollen from many different plant species can trigger allergic reactions and breathing problems in some people. Bronchial afflictions refer
Porifera Characteristics Porifera Characteristics Characteristic Description Phylum Porifera Common Name Sponges Environment Generally marine Symmetry Mostly asymmetrical Cell Organization Cellular level of organization Water or Canal Transport System Through minute pores (ostia) in the body wall into a central cavity (spongocoel), then out through the osculum. Helpful in feeding, respiratory exchange, and waste removal. Cell
NCERT-Invertebrates -Phylum Porifera to Echinodermata Characteristics Read More »
Animal Classification Animal Classification Phylum/Class Description Examples Porifera Primitive multicellular animals with cellular level of organisation. Asymmetrical; marine; water transport or canal system; reproduction both sexually and asexually. Sycon, Euspongia, Spongilla Coelenterata (Cnidaria) Radially symmetrical, diploblastic; tissue level of organisation; presence of cnidoblasts; two basic body forms – polyp and medusa; alternation of generation. Physalia,
Explanation of Sexual Reproduction in Plants Stamen, Microsporangium and Pollen Grain This is a heading introducing the topic of the following text: stamen, microsporangium, and pollen grain. These are all structures involved in plant reproduction. Line 2-4: Figure 2.2a shows the two parts of a typical stamen – the long and slender stalk called the
NCERT-Part-2-2.2.1 Stamen, Microsporangium and Pollen Grain Read More »
Root Examples Number Example Root Detail 1 Mustard Tap root system 2 Wheat Fibrous root system 3 Grass Adventitious roots 4 Monstera Adventitious roots 5 Banyan tree Adventitious roots (prop roots) 6 Maize Support roots (stilt roots) 7 Sugarcane Support roots (stilt roots) 8 Rhizophora Pneumatophores 9 Carrot Storage roots 10 Turnip Storage roots 11
NCERT – Plant Morphology – Examples and Characters – NCERT-Part by Part Read More »
Plant Characteristics Plant Characteristics Number Example Character Detail 1 Mustard Tap root 2 Wheat Fibrous root system 3 Grass Adventitious roots 4 Monstera Adventitious roots 5 Banyan tree Adventitious roots 6 Maize Support roots 7 Sugarcane Support roots 8 Rhizophora Pneumatophores 9 Potato Storage roots 10 Ginger Storage roots 11 Turmeric Storage roots 12 Zaminkand
NCERT – Plant Morphology – Examples and Characters – Random Read More »
