Easy
988 likes
Question
Write the name of two non-nitrogenous excretory products of plant.
WBBSE
Class X
Life Sciencesss
01 (a) Sensitivity and Response in Plants
02 Mark
2022
Answer
Carbon dioxide and Water vapour.
Explanation:
Plants excrete gaseous waste through stomata and lenticels. As they lack an excretory system, these waste products are released during respiration and transpiration.
Related Questions
More WBBSE Easy level questions
1/12
Moderate
Q.
If the temperature and acidity of sea-water increase what effects would it impose on marine...
A.
Increase of sea‑water temperature reduces dissolved oxygen and disturbs normal metabolic activities...
View Question
Hard
Q.
Prepare a list of endangered biodiversities of Indo-Burma and Sundaland hotspots.
A.
Indo-Burma and Sundaland are two major biodiversity hotspots with many endangered species....
View Question
Easy
Q.
Prepare a list of diseases linked with pollution as observed by a doctor among her...
A.
Pollution causes respiratory, skin and other diseases via air, water toxins. A...
View Question
Easy
Q.
Write one function each of the following five parts of eyeball of human eye: (a)...
A.
Parts Functions (a) Cornea Refracts light rays entering the eye. (b) Lens...
View Question
Moderate
Q.
Prepare a list of animals being endangered by poaching. Which environmental factors have the potentialities...
A.
Animals endangered due to poaching Poaching for skin, fur, horns, tusks, bones,...
View Question
Hard
Q.
What is the role of cryopreservation in the conservation of biodiversities? What information may be...
A.
Cryopreservation is a method of ex-situ conservation in which living biological materials...
View Question
Moderate
Q.
Explain the relationship between the decline in the number of biodiversities with that of over-exploitation...
A.
Relationship: Over-exploitation refers to the excessive use of biological resources beyond their...
View Question
Moderate
Q.
Show the major events of evolution with the help of a chart. What are the...
A.
The major events of evolution with the help of a chart Roles...
View Question
Moderate
Q.
Write three inferences deduced from the observations as mentioned in Darwin’s theory of origin of...
A.
Observation Inference Prodigious reproduction There is a struggle for existence due to...
View Question
Moderate
Q.
Black-smooth hair is produced in F₂ generation resulting from a cross between pure black-rough haired...
A.
Genetic counselling detects carrier status in parents for autosomal recessive diseases like...
View Question
Moderate
Q.
Mention the dominant and recessive traits of two characters related with seed and one character...
A.
Here are two seed-related characters commonly used in Mendel’s experiments, showing their...
View Question
Moderate
Q.
How is micropropagation performed? Which phenomena occur during telophase stage of mitosis in an animal...
A.
Micropropagation is rapid vegetative multiplication using tissue culture technique. It is performed...
View Question