Tag: oviparous and viviparous

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Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Structure which remains unchanged, during metamorphosis of frog's tadpole is

  1. Lung

  2. Heart

  3. Brain

  4. Intestine
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The nervous system undergoes least changes during metamorphosis of frog's tadpole. Frog's nervous system once differentiated remains as such throughout life. However, the brain acquires its normal shape and size. 

Therefore, the correct answer is option C.

Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Complete metamorphosis occurs in

  1. Bug

  2. Grasshopper

  3. Silverfish

  4. Butterfly
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In each stage of complete metamorphosis, the animal looks different than at all other stages. This is different from incomplete metamorphosis where the early stages of development look like tiny versions of the adult. Butterflies are an example of an insect that goes through all the stages of complete metamorphosis.

So, the correct answer is option D.

Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Which one of the following is a matching pair of an animal and a certain phenomenon it exhibits?

  1. Pheretima-Sexual dimorphism

  2. Musca-Complete metamorphosis

  3. Chameleon-Mimicry

  4. Taenia-Polymorphism.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Pheretima does not exhibit sexual dimorphism as there is no phenotypic difference between males and females of the same species.
The Musca or the housefly shows complete metamorphosis. It is the phenomenon in which the organism passes through all the four stages of the life cycle. The four distinct stages are as the egg,  larval or maggot, pupal and adult stages. The adult lays the fertilized eggs and the egg hatches to form the larvae. The larvae develop into a pupa and then the pupa is transformed to adult. 
Chameleon exhibits the change of their skin colouration and pattern through a combination of various colours.
Taenia does not exhibit polymorphism.
So, the correct answer is option B.
Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

If the sperm and egg cells of a butterfly have six chromosomes, how many chromosomes will be there in the maggot larvae?

  1. $6$
  2. $18$
  3. $12$
  4. $3$
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

If the sperm and egg cells of a butterfly have six chromosomes, 12 chromosomes will be there in the maggot larvae. This is because maggot larvae forms due to the fusion of egg and sperm cells. Since egg contains 6 and sperm cells contains 6 chromosomes, maggot larvae will get both sperm cell and egg cell chromosomes. Thus, the correct answer is option C.

Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Natural parthenogenesis is found in.

  1. Housefly

  2. Honeybee

  3. Drosophila

  4. All of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • Parthenogenesis is a form of asexual reproduction in which organisms reproduce without fertilization. It is seen to occur naturally in bees.
  •  Drone bees are produced parthenogenetically. Female worker honey bees lay only unfertilized eggs and these eggs result in drone bees. 
  • So, the correct option is 'Honeybee'.
Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Tadpoles of frog can be made to grow as giant sized tadpoles, if they are

  1. Administered anti-thyroid substance like thiourea.

  2. Administered large amounts of thyroxine.

  3. Reared on a diet rich in egg yolk.

  4. Reared on a diet rich in both egg yolk and glucose.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Xenopus laevis tadpoles that arrest development and remain as larvae for several years sometimes occur spontaneously in laboratory populations. These tadpoles cease development at an early hindlimb stage, but continue to grow and develop into grossly deformed giants. Giant tadpoles lack thyroid glands, and differ in morphology and behaviour from normal larvae. Tadpoles of frog can be made to grow as giant sized tadpoles, if they are administered large amounts of thryoxine.

Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Name the hormone released during the following events$:$
Development of a caterpillar to moth

  1. Testosterone

  2. Juvenile hormone

  3. Adrenaline

  4. Growth hormone
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • Metamorphosis refers to the way that organisms develop, grow, and change form.
  • Metamorphosis majorly occurs in insects.
  • metamorphosis has four stages i.e egg, larva, pupa and adult.
  • Caterpillars, maggots and grubs are all just the larval stages of insects.
  • The hormone released during the development of a caterpillar to moth(adult insect) is called juvenile hormone(JH).
So, the correct answer is 'Juvenile hormone'.

Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Butterflies have the typical ______ stage insect life cycle.

  1. One

  2. Two

  3. Three

  4. Four
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

  • Typically, insects including butterflies have 4 stages in their life cycle.
  • The first stage is egg. when the eggs hatch the new insect is called a larva (second stage).
  • The third stage i.e. pupa represents the transition between larva and adult ( fourth stage).
So, the correct option is 'Four'.

Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

In which stage of complete metamorphosis, does a creature eat a lot in order to store food?

  1. Egg

  2. Larva

  3. Adult

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

The larva is that stage in metamorphosis following which the adult stage is reached. The larvae consume a lot of food in order to fuel their transition into the adult form. Hence, during the larva stage the creature eats a lot of food which acts as the source of nutrition and energy, required for its transformation into an adult.

So, the correct answer is option B.

Multiple choice biology butterfly and honey bee life cycle of a butterfly metamorphosis in frogs the life of a butterfly types of reproduction in animals oviparous and viviparous

Metamorphosis is affected by

  1. Iodine

  2. Thyroxine

  3. Mineralocorticoids

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

  • Amphibian metamorphosis depends upon the amount of iodine secured by larvae; the greater the quantity the more rapid the differentiation.
  • Also, thyroxine initiates the numerous morphological and biochemical components of amphibian metabolism.
So, the correct option is 'Both A and B'