Yes!
There are repeat irises and lilacs. Cattelya orchids can bloom twice a year. There is also an encore azelea.
Lilacs are perennials. A lilac bush can last more than fifty years.
yes
much more than a week
Orchids are very diverse. Charles Darwin wrote about it. There are more than 25,000 species of orchids. Part of this is because orchids have pollen that is very sticky so pollenators don't lose it on their way to the next flower. Orchids also trick pollenators by developing structures and scents that resemble food or even other insects.
Because male sperms are alot more fragile than femal sperms
Bromeliads
No. The larger the protein, the more fragile it is and the easier it will be denatured.
Orchids have specialized roots called aerial roots. These roots help orchids absorb moisture and nutrients from the air, rather than from the soil. Aerial roots also assist orchids in clinging to trees or other surfaces in their natural habitats.
Unicellular
its the jaw because the head more harder than the jaw
One of the largest groups of flowering plants, orchids are a member of the Orchdaceae family A member of the plant kingdom, phylum Angiosperm, the orchid family is the focus of much cross breeding.