EASY
Earn 100

Draw arrows on the drawing to show how pollination happens.

Question Image

Important Questions on Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.

MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Papaya is a dioecious species with XY sexual genotype for male and XX for female. What will be the genotype of the embryos and endosperm nuclei after double fertilisation?
MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Write two changes that occur in teenage boys during the period of Adolescence.
EASY
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Select the correct pair and write it -
EASY
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Pollen grains of a fruiting plants species are deposited on the female flower by a pollinator. However, the female flower does not get fertilized. Which of the following observation is true?
EASY
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
What is vegetative reproduction? Explain any three natural methods of vegetative reproduction with the help of suitable diagrams.
HARD
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
“Double fertilization” is a complex mechanism of flowering plants that is also unique to angiosperms. Choose the most appropriate statement from the options listed below that explains this phenomenon.
MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Which one of the following statements is correct regarding sexual reproduction?
HARD
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Draw a labelled diagram of vertical section of a flower and explain its various parts.
MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.

What is the process of reproduction in amoeba? What are the advantages of sexual reproduction over asexual reproduction?

MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
What changes are seen among the girls during adolescent age/puberty ?
EASY
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.

The diagram represents the lifecycle of angiosperm. Choose the correct combination of labelling?

Question Image

HARD
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Answer the following question:
Write the changes that occur in the age group 11 to 21 years in boys.
EASY
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Select which of the following is the feature of cross pollination
MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Why is cross-pollination advantageous to plants?
HARD
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Explain the differences between self-pollination and cross-pollination.
HARD
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
The diagram below shows the carpel of a flower after pollination. 
a) Name the structures A to C. 
b) What has caused structure B to grow out of structure A? 
c) Briefly explain how the structure B carries out its function. 
d) What happens after structure B reaches its destination? 
Question Image
MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Explain wind pollination and give explanation of why wind-pollinated flowers produce a large amount of pollen grains.
MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Explain the difference between self-pollination and cross-pollination.
EASY
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
What does 'pollination' mean?
MEDIUM
Life Sciences>From Molecules to Organisms: Structures and Processes>Use argument based on empirical evidence and scientific reasoning to support an explanation for how characteristic animal behaviors and specialized plant structures affect the probability of successful reproduction of animals and plants respectively.>Growth and Development of Organisms - Animals engage in characteristic behaviors that increase the odds of reproduction. Plants reproduce in a variety of ways, sometimes depending on animal behavior and specialized features for reproduction.
Some flowers are pollinated through insects. For what reasons do insects visit flowers? How do the insects help in pollination?