Using the given organisms, two separate food chains can be formed: Grass → Rabbit → Fox → Tiger → Vulture Trees → Insects → Frog → Snake → Owl These food chains are interconnected, forming a food web that shows how energy flows through producers, consumers, and decomposers. Producers like grass andRead more
Using the given organisms, two separate food chains can be formed:
Grass → Rabbit → Fox → Tiger → Vulture
Trees → Insects → Frog → Snake → Owl
These food chains are interconnected, forming a food web that shows how energy flows through producers, consumers, and decomposers. Producers like grass and trees convert sunlight into food, supporting herbivores, carnivores, and decomposers in maintaining ecological balance.
A neuron is the structural and functional unit of the nervous system. It consists of dendrites, a cell body, and an axon. Dendrites receive impulses from other neurons and transmit them to the cell body. The impulse then passes along the axon to axon terminals, where it is transferred to another neuRead more
A neuron is the structural and functional unit of the nervous system. It consists of dendrites, a cell body, and an axon. Dendrites receive impulses from other neurons and transmit them to the cell body. The impulse then passes along the axon to axon terminals, where it is transferred to another neuron or effector through synapses using neurotransmitters. This mechanism ensures the rapid and efficient transmission of information throughout the body.
In the cross RRyy × rrYY, the F₁ plants are RrYy (round yellow). Gametes formed are RY, Ry, rY, ry. On self-pollination, the F₂ generation shows independent assortment of traits, producing a phenotypic ratio of 9 round yellow : 3 round green : 3 wrinkled yellow : 1 wrinkled green. If 144 seeds are pRead more
In the cross RRyy × rrYY, the F₁ plants are RrYy (round yellow). Gametes formed are RY, Ry, rY, ry. On self-pollination, the F₂ generation shows independent assortment of traits, producing a phenotypic ratio of 9 round yellow : 3 round green : 3 wrinkled yellow : 1 wrinkled green. If 144 seeds are produced, the numbers are 81, 27, 27, and 9 respectively. This experiment demonstrates Mendel’s Law of Independent Assortment.
The digested food is absorbed in the small intestine, mainly through the inner walls lined with tiny finger-like projections called villi. These villi greatly increase the surface area for absorption. Each villus contains blood capillaries and lymph vessels that transport nutrients. The digested nutRead more
The digested food is absorbed in the small intestine, mainly through the inner walls lined with tiny finger-like projections called villi. These villi greatly increase the surface area for absorption. Each villus contains blood capillaries and lymph vessels that transport nutrients. The digested nutrients such as glucose, amino acids, fatty acids, and glycerol pass through the intestinal wall into the bloodstream and lymph. From there, they are carried to different parts of the body for energy, growth, and repair.
Boiled eggs are rich in proteins. Protein digestion begins in the stomach. The gastric glands present in the stomach wall secrete gastric juice containing pepsin enzyme and hydrochloric acid. Hydrochloric acid creates an acidic medium, which activates pepsin from its inactive form, pepsinogen. PepsiRead more
Boiled eggs are rich in proteins. Protein digestion begins in the stomach. The gastric glands present in the stomach wall secrete gastric juice containing pepsin enzyme and hydrochloric acid. Hydrochloric acid creates an acidic medium, which activates pepsin from its inactive form, pepsinogen. Pepsin then breaks down complex protein molecules into smaller peptides. The mucus secreted by the stomach lining protects it from acid damage. Thus, the stomach is the first site where protein digestion starts effectively in humans.
About 100 acres of forest land was declared as Natural reserve park. The following organisms were predominant in the Natural reserve park: rabbit, frog, grass, fish, fox, water insects, zebra, peacock, snake, trees, bird, owl, insects, tiger, vulture, duck. Create a food web comprising two separate food chains with different producers by using the above data.
Using the given organisms, two separate food chains can be formed: Grass → Rabbit → Fox → Tiger → Vulture Trees → Insects → Frog → Snake → Owl These food chains are interconnected, forming a food web that shows how energy flows through producers, consumers, and decomposers. Producers like grass andRead more
Using the given organisms, two separate food chains can be formed:
These food chains are interconnected, forming a food web that shows how energy flows through producers, consumers, and decomposers. Producers like grass and trees convert sunlight into food, supporting herbivores, carnivores, and decomposers in maintaining ecological balance.
See lessDraw and explain how the nerve cells help in transmission of impulses?
A neuron is the structural and functional unit of the nervous system. It consists of dendrites, a cell body, and an axon. Dendrites receive impulses from other neurons and transmit them to the cell body. The impulse then passes along the axon to axon terminals, where it is transferred to another neuRead more
A neuron is the structural and functional unit of the nervous system. It consists of dendrites, a cell body, and an axon. Dendrites receive impulses from other neurons and transmit them to the cell body. The impulse then passes along the axon to axon terminals, where it is transferred to another neuron or effector through synapses using neurotransmitters. This mechanism ensures the rapid and efficient transmission of information throughout the body.
See lessIn a genetic experiment, plants with pure round green seeds (RRyy) were crossed with plants with wrinkled yellow seeds (rrYY). (i) Show the gametes formed when F1 was self-pollinated. (ii) A total of 144 seeds were produced which developed into saplings. Show the ratio in which these traits are independently inherited in these 144 saplings.
In the cross RRyy × rrYY, the F₁ plants are RrYy (round yellow). Gametes formed are RY, Ry, rY, ry. On self-pollination, the F₂ generation shows independent assortment of traits, producing a phenotypic ratio of 9 round yellow : 3 round green : 3 wrinkled yellow : 1 wrinkled green. If 144 seeds are pRead more
In the cross RRyy × rrYY, the F₁ plants are RrYy (round yellow). Gametes formed are RY, Ry, rY, ry. On self-pollination, the F₂ generation shows independent assortment of traits, producing a phenotypic ratio of 9 round yellow : 3 round green : 3 wrinkled yellow : 1 wrinkled green. If 144 seeds are produced, the numbers are 81, 27, 27, and 9 respectively. This experiment demonstrates Mendel’s Law of Independent Assortment.
See lessHow will the digested food be taken up by the alimentary canal?
The digested food is absorbed in the small intestine, mainly through the inner walls lined with tiny finger-like projections called villi. These villi greatly increase the surface area for absorption. Each villus contains blood capillaries and lymph vessels that transport nutrients. The digested nutRead more
The digested food is absorbed in the small intestine, mainly through the inner walls lined with tiny finger-like projections called villi. These villi greatly increase the surface area for absorption. Each villus contains blood capillaries and lymph vessels that transport nutrients. The digested nutrients such as glucose, amino acids, fatty acids, and glycerol pass through the intestinal wall into the bloodstream and lymph. From there, they are carried to different parts of the body for energy, growth, and repair.
See lessNeha consumed boiled sweet potatoes and boiled eggs for breakfast. Help her to understand some steps in the process of digestion of the food taken by her by answering the questions given below. Which of these food items is rich in proteins? In which part of the alimentary canal is the digestion of this component initiated? Name the enzymes, conditions required and the glands associated with the digestion here.
Boiled eggs are rich in proteins. Protein digestion begins in the stomach. The gastric glands present in the stomach wall secrete gastric juice containing pepsin enzyme and hydrochloric acid. Hydrochloric acid creates an acidic medium, which activates pepsin from its inactive form, pepsinogen. PepsiRead more
Boiled eggs are rich in proteins. Protein digestion begins in the stomach. The gastric glands present in the stomach wall secrete gastric juice containing pepsin enzyme and hydrochloric acid. Hydrochloric acid creates an acidic medium, which activates pepsin from its inactive form, pepsinogen. Pepsin then breaks down complex protein molecules into smaller peptides. The mucus secreted by the stomach lining protects it from acid damage. Thus, the stomach is the first site where protein digestion starts effectively in humans.
See less