Question: What Is Juvenile Or Vegetative Phase?

What is the advantage of asexual reproduction?

The advantages of asexual reproduction include: the population can increase rapidly when the conditions are favourable.

only one parent is needed.

it is more time and energy efficient as you don’t need a mate..

What marks the beginning of reproductive phase in higher plants?

It is known as vegetative phase in plants. … The end of juvenile/vegetative phase which marks the beginning of the reproductive phase can be seen easily in the higher plants when they come to flower.

Can a person in a vegetative state hear you?

Other studies have shown that up to 20 percent of patients in various vegetative states can hear and respond on at least some level. But at least some of the responses seen could be dismissed as simple reflexes, or at best akin to someone in a dream state responding to stimuli.

What is the meaning of vegetative phase?

The vegetative phase is characterized by meristems producing leaves. The transition phase produces an elevation of the apical meristem, while the reproductive phase centers around meristems producing flowers.

What makes the end of reproductive phase?

Reproductive phase in both females and males begin at puberty. In males, reproductive phase lasts until death but in females, it ends by the age of 50 years. Menstrual cycle/ menstruation mark the commencement of puberty in girls.

Which is better mode of reproduction?

Sexual mode of reproduction is better mode than asexual because in sexual mode there is fusion of male and female gametes through which we get variation in offspring as compared to their parents. Question3. Why is offspring formed by asexual reproduction referred to as clone?

Why is reproduction so important?

Reproduction is important for the survival of all living things. Without a mechanism for reproduction, life would come to an end. … Some cells reproduce by unequal division of the cells, this is called budding. In this process the bud forms as a knob on the mother cell.

Which of the following plant shows unusual flowering phenomenon?

Flowering in Bamboo plant is considered a unique flowering process because this type of flowering is very rare and unique in plant kingdom. Bamboo plant produces spectacular flowers once every 60 to 130 years, depending upon the species. Similarly, a plant of Neela kuranagi exhibit flowers once in 12 years.

What is a vegetative plant?

Vegetative parts (Figure 1) include roots, stems, shoot buds, and leaves; they are not directly involved in sexual reproduction. … Vegetative parts often are used in asexual forms of reproduction such as cuttings, budding, or grafting.

What marks the end of juvenile phase?

Answer. The end of the Juvenile phase or Vegetative phase in flowering plants is marked by the beginning of Reproductive phase and reproductive phase can be seen easily in the plants when they come to flower.

Why reproductive phase in a man lasts for the whole life?

No, reproductive phase in a man doesn’t last for the whole life. Because, – The reproduction work in a male human body is totally dependent on the sex hormones secreted in the body. … – For this reason,the reproduction capabilities get decreased with the increasing age,in the male human bodies.

What are the phases of reproduction?

9 Basic Phases of Physiology of Human Reproduction | BiologyGametogenesis: … Insemination (Ejaculation): … Fertilization: … Cleavage: … Implantation: … Placentation: … Gastrulation: … Organogenesis:More items…

What does vegetative state mean in plants?

In horticulture, the vegetative stage refers to the phase of plant growth that occurs after germination and before flowering, during which the plant develops the majority of its foliage and truly flourishes. … Plants tend to be more fragile in the vegetative stage as opposed to the flowering stage.

What is meant by juvenile phase?

Answer: (1) Juvenile phase – It is the period of growth after birth in an individual organism, and before it meets reproductive maturity. (2)Reproductive phase – It is the time when a human organism sexually reproduces.

Why is the reproduction necessary for living beings?

Reproduction is a fundamental feature of all living organisms. … Reproduction ensures the continuity of various species on the Earth. In the absence of reproduction, the species will not be able to exist for a long time and may soon get extinct.

What is reproductive phase in plants?

Phases of plant development. During sexual reproduction, gametes are produced (gametophytic phase). After fertilization, populations of stem cells are established at the opposing ends of the primary growth axis of the developing embryo, forming the root apical meristem (RAM) and the shoot apical meristem (SAM) (red).

What is a juvenile?

A “juvenile” is a person who has not attained his eighteenth birthday, and “juvenile delinquency” is the violation of a law of the United States committed by a person prior to his eighteenth birthday which would have been a crime if committed by an adult.

What is juvenile phase and vegetative phase?

The juvenile phase: All organism has to attain a certain stage of growth and maturity before the can reproduce. This is called juvenile phase. … The vegetative phase: the period of growth or the period before reproductive phase in plants is termed as vegetative phase. both the phases is followed by Reproductive phase.