Q1: What process in plants involves the removal of waste products?
Excretion.
Q2: Name the pores on the surface of leaves that help in respiration.
Stomata.
Q3: Which process involves the production of new organisms of the same kind?
Reproduction is the biological process through which new organisms of the same species are produced. This process ensures that life continues and that the species persists over time.
Q5: What is the outer covering of a seed called?
The seed coat is the protective outer layer of a seed. It shields the seed from physical damage and prevents water loss.
Q6: Why do plants need sunlight after germination?
Sunlight is essential for photosynthesis, which helps in the growth and development of the plant.
Q7: How does the touch-me-not plant respond to stimuli?
The touch-me-not plant folds its leaves when touched, which is a response to stimuli.
Q8: What happens to a seed when it germinates?
The seed absorbs water, softens its seed coat, and the embryo inside begins to grow into a new plant.
Q9: Describe the significance of the life cycle of a plant.
The life cycle of a plant is crucial as it outlines the stages of growth and reproduction. It starts with the seed stage, which germinates into a young plant. As it matures, the plant develops flowers and fruits, which contain seeds. These seeds can grow into new plants, ensuring the continuation of the species. Understanding the life cycle helps in understanding how plants reproduce, grow, and eventually die, contributing to the cycle of life in ecosystems.
Q10: How do frog tadpoles change as they grow?
Frog tadpoles go through several changes as they grow. Initially, tadpoles have tails and live in water. As they grow, they start developing legs. First, they get hind legs, and later, they get front legs. At this stage, they are called froglets. Froglets still have tails but can spend some time on land. Eventually, the tadpoles lose their tails completely, and their legs become strong, allowing them to jump. At this point, they become adult frogs, which can live both in water and on land.
Q1: What is the white jelly-like substance found on the surface of water or attached to plants in a pond known as?
a) Algae
b) Spawn
c) Pollen
d) Seaweed
Ans: b) Spawn
The white jelly-like substance observed on the surface of water or attached to plants in a pond is a cluster of frog eggs, referred to as spawn.
Q2: Which of the following is NOT a characteristic of living beings?
a) Growth
b) Respiration
c) Excretion
d) Inertia
Ans: d) Inertia
Inertia is a property of non-living objects, not a characteristic of living beings.
Q3: What do plants require for seed germination?
a) Sunlight only
b) Water and air
c) Soil and light
d) Heat only
Ans: b) Water and air
Water and air are essential for seed germination as they help in the activation of the seed’s metabolic processes.
Q4: How do plants like Drosera capture insects?
a) By excretion
b) By movement
c) By respiration
d) By growth
Ans: b) By movement
Drosera plants move their sticky hair-like projections to trap insects for nutrition.Drosera Plant
Q5: Which characteristic is common to all living beings?
a) Respiration
b) Movement
c) Reproduction
d) All of the above
Ans: d) All of the above
All living beings respire, move, and reproduce as part of their life processes.
Q7: Which of the following processes allows a plant to produce food?
a) Respiration
b) Photosynthesis
c) Excretion
d) Reproduction
Ans: b) Photosynthesis
Photosynthesis is the process by which plants use sunlight to convert carbon dioxide and water into food.
Q8: What happens to a seed when it is kept in a dark location with moist soil?
a) It will not germinate
b) It will germinate but not grow well
c) It will germinate and grow normally
d) It will dry out
Ans: b) It will germinate but not grow well
Seeds can germinate in the dark if moisture is present, but the plant will require sunlight for proper growth after germination.
Q9: How do mosquito larvae breathe while living in water?
a) Through gills
b) By coming to the surface
c) Through their skin
d) By absorbing oxygen from water
Ans: b) By coming to the surface
Mosquito larvae come to the water’s surface to breathe air.
Q10: Which stage in the life cycle of a frog has both tail and legs?
a) Spawn
b) Embryo
c) Tadpole
d) Froglet
Ans: d) Froglet
A froglet has both a tail and legs as it transitions from a tadpole to an adult frog.
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1. What are the characteristics of living creatures? |
2. How do living creatures differ from non-living things? |
3. Why is it important to understand the characteristics of living creatures? |
4. Can living creatures evolve over time? |
5. How do living creatures interact with their environment? |
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