A primary key is a special relational database table column (or combination of columns) designated to uniquely identify all table records. A primary key's main features are: It must contain a unique value for each row of data. It cannot contain null values.
Strangler figs are plants that attach themselves to trees for their growth and support. They absorb nutrition from the host tree and cause it to struggle to obtain sunlight and nutrients. This indicates that Strangler figs is a parasite to the trees.
Orchids are also plants that attach themselves to tropical trees. However, orchids don’t harm the host. Orchids obtain sunlight and moisture from their surroundings. This indicates that orchids are in a commensalist relationship with the trees.
Both Strangler figs and orchids exhibit symbiotic relationship of two different kinds, namely, parasitism and commensalism.
Answer:
Explanation:
leptoteno es el estado inicial de la profase I en la meiosis.
caracteristicas
Los cromosomas se hacen visibles y a menudo se encuentran en una configuración en ramillete, con uno o ambos extremos de los cromosomas reunidos en un punto de la membrana nuclear interna.
los cromosomas aparecen como largos filamentos
cada cromosoma esta constituido por 2 cromatidas
This variation is an example of disruptive selection. The other choices given in the question are incorrect and can be easily neglected. The correct option among all the options that are given in the question is the fourth option or the last option. I hope that this is the answer that has come to your desired help.
