a. All are in situ conservation methods.

b. All are ex-situ conservation methods.

c. All require ultra-modern equipment and large space.

d. All are methods of conservation of extinct organisms

Answer: b. All are ex-situ conservation methods

Explanation: In vitro implantation is the process of conception in which an egg is fertilized with sperm outside the body, in vitro. This process involves monitoring and regenerating a woman’s reproductive process, removing an egg or ova from a woman’s uterus and allowing sperm to pass through in the laboratory.

Extraction industry is the storage of seeds, pollen, tissues, or embryos in liquid nitrogen. This method can be used to store items indefinitely without deterioration in a very large amount of time related to all other forms of ex situ preservation. Cryopreservation is also used to preserve genetics through the use of cryoconservation of animal genetic resources. Somatic tissue can be stored in vitro for a short time. This is done in an environment that controls light and temperature that controls cell growth. As a culture tissue culture preservation techniques are used primarily for the clonal use of vegetable or immature seed seeds. This allows for the growth of clonal plants from a small amount of parent tissue.