The chapter states that monocots usually have fibrous roots and parallel venation, while dicots usually have taproots and reticulate venation.
Wheat is a monocot seed; its plant generally has fibrous roots and parallel venation. Kidney bean is a dicot seed; its plant generally has a taproot and reticulate venation.
Aquatic animals live mainly in water, terrestrial animals live mainly on land, and amphibious or semi-aquatic animals can live in both habitats.
A: Dolphin, Whale. B: Horse, Sheep, Squirrel, Earthworm, Pigeon. C: Frog, Crocodile, Tortoise.
Radish is a dicot plant. Dicots generally have taproots and reticulate venation in their leaves.
Radish is a taproot. Its leaves show reticulate venation.
The differences arise because animals living in different habitats develop special features, called adaptations, that help them survive in those habitats.
Both are goats and have similar basic body parts such as legs, hooves, horns and a body covered with hair. A mountain goat is adapted to cold, rocky mountains; it has features such as a thicker coat and strong hooves for climbing. A goat found in the plains is adapted to warmer, flatter surroundings and does not need the same mountain-climbing adaptations.
The question allows any feature other than those discussed in the chapter. Presence or absence of backbone is a valid observable grouping feature.
One possible grouping is: Animals with backbone: cow, pigeon, bat, tortoise, whale, fish, lizard. Animals without backbone: cockroach, grasshopper.
The chapter connects habitat damage with loss of biodiversity. Protecting habitats and using resources judiciously helps plants and animals survive.
Cutting forests destroys habitats, reduces biodiversity, increases soil erosion, disturbs rainfall and temperature patterns, and reduces clean air. We can address this by reducing unnecessary cutting, planting and protecting trees, using resources carefully, recycling materials, creating protected areas and involving communities in conservation.
In the flowchart, A is reached when a plant has leaves with reticulate venation, which is typical of dicots. B is reached when the plant does not have reticulate venation, which points to parallel venation typical of monocots.
A can be a dicot plant such as pea, gram, mustard or hibiscus. B can be a monocot plant such as wheat, maize, rice or grass.
Shrubs are identified by features such as medium height, hard stems and branching near the base. Clarifying questions should check these features.
Sanjay can ask: Is the plant shorter than most trees? Does it have a hard but not very thick stem? Does it branch close to the ground? Does it have many stems arising near the base?
Group A has dicot seeds and taproots, so examples are dicot plants. Group B has monocot seeds and fibrous roots, so examples are monocot plants.
Group A: pea, gram, mustard, bean or hibiscus. Group B: wheat, rice, maize, grass or banana.
Group A is dicot with taproot. Dicots generally show reticulate venation and have two cotyledons.
Plants of Group A usually have reticulate venation in their leaves and seeds with two cotyledons.
Group B is monocot with fibrous roots. Monocots generally show parallel venation and have one cotyledon.
Plants of Group B usually have parallel venation in their leaves and seeds with one cotyledon.
Webbed feet are an adaptation for aquatic movement. They push water backward and help the duck move forward while swimming.
A duck has webbed feet, with skin between the toes, unlike many other birds such as pigeons. These webbed feet help the duck swim in water.