Tag: plant adaptation

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Questions Related to plant adaptation

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

The correct sequence of plants in hydrosphere is :

  1. $Oak \rightarrow Lantana \rightarrow Volvox \rightarrow Hydrilla \rightarrow Pistia \rightarrow Scirpus$
  2. $Oak \rightarrow Lantana \rightarrow Scirpus \rightarrow Pistia \rightarrow Hydrilla \rightarrow Volvox $
  3. $Volvox \rightarrow Hydrilla \rightarrow Pistia \rightarrow Scirpus \rightarrow Lantana \rightarrow Oak$
  4. $Pistia \rightarrow Volvox \rightarrow Scirpus \rightarrow Hydrilla \rightarrow Oak \rightarrow Lantana$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The hydrosere succession typically moves from submerged plants (Volvox, Hydrilla) to floating plants (Pistia), then to reed-swamp stages (Scirpus), and finally to terrestrial stages (Lantana, Oak).

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

Plants which grow in shade are called

  1. Sciophytes

  2. Heliophytes

  3. Oxylophytes

  4. Epiphytes
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Sciophytes are plants that are adapted to grow in low-light or shaded conditions. Heliophytes prefer full sun, while Oxylophytes grow in acidic soil.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

Resource partinotiong can only take place when

  1. Species have different feeding manner

  2. Species only have different foraging manner.. no matters feeding type different or same

  3. Different fedding and foraging time

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Resource partitioning is the phenomenon of evolutionary changes seen in species in response to the selection pressure generated by interspecific competition. Due to this, no two organisms within the same species can coexist in the same niche if they have same resources. They have different foraging manner whether feeding type is different or same. Example of resource partitioning involves two tigers present in their own territories or niches and defending it from other tigers. 

Thus, the correct answer is option B.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

Excessive aerenchyma tissues in the plants is mainly an adaptation for.

  1. Xerophytes condition

  2. Hydrolytic condition

  3. Epiphytic condition

  4. Niesophytic condition
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Aerenchyma is a spongy tissue with large air spaces found in the leaves, stems, and roots of aquatic plants. It provides buoyancy and facilitates gaseous exchange in flooded or hydrolytic conditions.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

The most effective defence of plants against herbivores are

  1. Morphological

  2. Chemical

  3. Temporal

  4. Developmental
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

To counter the herbivore attack, plants produce specialized morphological structures or secondary metabolites and proteins that have toxic, repellent effects on the herbivores. Plants confront the herbivores both directly by affecting host plant preference or survival and reproductive success (direct defense), and indirectly through other species such as natural enemies of the insect pests (indirect defense). Direct defenses are mediated by plant characteristics that affect the herbivores biology such as mechanical protection on the surface of the plants (e.g., hairs, trichomes, thorns, spines, and thicker leaves) or production of toxic chemicals such as terpenoids, alkaloids, anthocyanins, phenols, and quinones) that either kill or retard the development of the herbivores.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

Submerged hydrophytes have commonly dissected leaves for

  1. Decreasing surface area

  2. Increasing surface area

  3. Reducing effect of water currents

  4. Both B and C
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The submerged leaves are often highly dissected or divided. This has the advantage of creating a very large surface area for absorption and photosynthesis. It also minimises water resistance and hence, potential damage to the leaves since moving water (currents and waves) can be damaging to the leaves of the plant.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

In xerophytes, photosynthesis, often occurs through

  1. Root

  2. Modified stem

  3. Stomata

  4. Scaly leaves
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Xerophytes are plants, that have small amount of water or moisture, so they have adaptations that allow them to survive in these harsh conditions. These plants are like cactus and other succulents are typically found in deserts. 

Xerophytes have a shortage of water, so have special adaptive features to store or reduce the loss of water, so that photosynthesis and respiration can be carried out. 
For e.g., in Cacti the leaves have become spines, so therefore photosynthesis occurs in the stem. It has many packed cells in the cortex, that can easily store water and the epidermis has a tick waxy cuticle, that reduces water loss. The cacti can close its stomata during the day decreases water lost and then open it at night to let in $CO _2$ for photosynthesis. This photosynthesis process is called as the CAM photosynthesis.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

One of the advantages of growing chilli plants between two rows ofgreen gram plants, is that

  1. Chilli plants are protected by the shade of dhal plants

  2. Nitrogenous fertiliser prepared by green gram plants can be utilised

    by chilli plants

  3. Chilli plants get water from green gram plants

  4. Dhal plants are protected from pests in the presence of chilli plants
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Intercropping chilli with green gram (a legume) provides a microclimate benefit. The chilli plants benefit from the shade provided by the taller or denser green gram plants, which helps them survive in intense heat.

Multiple choice botany adaptation plant adaptation adaptation in plants plant habitat importance and classification of angiosperms aquatic plant adaptations pollination through water life in water

Which one of the following is correct matching of a plant, its habit and the forest type where it normally occurs?

  1. Prosopis, tree, scrub

  2. Saccharum, grass, forest

  3. Shorea robusta, herb, tropical rain forest

  4. Acacia catechu, tree, coniferous forest
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Prosopis is a genus of trees commonly found in scrub or arid forest types. The other options misidentify the habit or the typical forest biome for those species.

Multiple choice biology environmental science plant adaptation adaptation in plants plant habitat

The bats are able to fly in dark since their mouth produce?

  1. Sound waves

  2. Ultrasonic waves

  3. Infrared rays

  4. Ultraviolet rays
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Bats navigate and locate obstacles or prey in total darkness by emitting high-frequency ultrasonic waves and listening to the returning echoes. This biological sonar system is known as echolocation.