The majority of species do not produce scented flowers or cultivars. Like most plants that do not attract pollinating insects through scent, they are brightly colored, displaying most hues, with the exception of blue. The dahlia was declared the national flower of Mexico in 1963.
https://en.wikipedia.org/wiki/Dahlia
The saguaro cactus can grow unto an astonishing 45ft. Probably the most amazing fact about this plant is that even in its harsh climate some cacti can survive over 200 years! These adaptations allow certain cacti to survive 3 years without water; a human can barely survive 4 days. 9 people found this useful.
http://www.answers.com/Q/How_many_cells_does_a_cactus_have
Mapped in 2007 by the Horse Genome Project, the genetic material of a horse includes 2.7 billion DNA base pairs inside each chromosome. Other animals with 64 chromosomes are the chinchilla, the fennec fox and the spotted skunk. Donkeys, which have 62 chromosomes, are bred with the domesticated horse to produce mules, which have 63 chromosomes.
https://www.reference.com/science/many-chromosomes-horse-1009bea43124bbf9
Thus, chromosomes and the genes on them occur in pairs in most of the cells of the body. There are 22 different chromosome pairs existing in each cell of the rabbit except the sex cells and red blood cells. Each chromosome pair controls different functions.
http://debmark.com/rabbits/genetics.htm
Generally, a cactus has 22 chromosomes arranged as 11 pairs. Such a cactus is called 'diploid', from the Greek 'diploos' and 'eidos' for 'double' and 'form', respectively. In the way of comparison, humans tend to have 46 chromosomes arranged as 23 pairs. But some cactus plants have more than two sets of chromosomes. For example, it's possible for a cactus to have 44 or even 66 chromosomes. Such a cactus is called 'polyploid', from the Greek 'polu' and 'ploos' for 'many' and 'fold', respectively.
http://www.answers.com/Q/How_many_chromosomes_does_a_cactus_have
B_ x B_ = (BB, B_, _B, _ _) Let's fill in the blanks. If one of the rabbits had both black genes (BB) all of the litter would be black, without exception, even if the other rabbit had one brown gene. It wouldn't matter how many times you bred these two rabbits together, you would always have black offspring.
http://debmark.com/rabbits/genetics.htm
There are 42 species of dahlia, with hybrids commonly grown as garden plants. Flower forms are variable, with one head per stem; these can be as small as 5 cm (2 in) diameter or up to 30 cm (1 ft) (dinner plate). This great variety results from dahlias being octoploids—that is, they have eight sets of homologous chromosomes, whereas most plants have only two.
https://en.wikipedia.org/wiki/Dahlia
Up to a million or even more. Every organism has a bunch of cells.
http://www.answers.com/Q/How_many_cells_does_a_cactus_have
Quick Answer. Domesticated horse breeds have 64 chromosomes. Przewalski's Horse, the only known remaining breed of wild horse, has 66 chromosomes. In spite of this difference, both horse breeds are able to mate together and produce fertile offspring.
https://www.reference.com/science/many-chromosomes-horse-1009bea43124bbf9
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how many chromosomes does a cactus have
A cactus have 22 chromosomes.