All cells have a cell membrane. its basically what protects the cells from getting toxins that are sometimes entering your body. without a membrane on all cells, you would get sick a lot!!
If you are referring to bacteria, and other possible microorganisms, they are found everywhere whether that be the air surrounding us, to abiotic, non living components of the environment, such as water, soil, etc. Generally though, one celled organisms are found in soil. Substantially, it has been noted that a single hand full of soil, contains more microbes than the people in a given country etc.
Vegetative reproduction is a type of asexual reproduction in which an individual is reproduced from vegetative parts such as leaf, stem etc. while seed contain inactive embryo which is formed from zygote.
Answer/Explanation:
Types of reproductive isolation include: temporal, ecological, mechanical, and behavioural.
A snail with a flat disc-like shell will not be able to mate with a snail having a conical shell - this is an example of mechanical isolation, where the animals are physically unable to mate due to incompatible body shapes and sizes.
The reproductive organs of male bush babies do not match with the reproductive organs of females of other bush baby species. - this is another example of mechanical isolation, as the sexual organs will physically not allow reproduction between these species
The mating call of a cricket is not recognized by a cricket of other species - this is an example of behavioural isolation, which results from incompatible mating rituals. I.e. the animals do not respond to each others mating behaviours
The signals sent by a male firefly are not recognized by the female firefly of other species. - this is also an example of behavioural isolation.
Temporal isolation is where species cannot interact because they do not have the same mating seasons or are not active at the same type of day. ?Ecological isolation occurs when two species do not come into physical contact to one another because they access different areas of the habitat. E.g. mating zones, food sources or nesting sites.
This is a case of a patient that needs his subtalar joint to be immobilized by the fusion of supporting bones. This is called arthrodesis and the corresponding CPT code for arthrodesis procedures in the foot and toes is CPT 28715. The patient also underwent bone grafting from the fibula to fill in the defects in the talus. The CPT code for general grafts or implants procedures in the musculoskeletal system is CPT 20902-51.
