Speciation is the adaptive divergence and gradual that leads to two different species.
Reproductive isolation results in speciation when the processes of evolutionary mechanisms, physiological and behaviours are collected.
Mechanism of reproductive isolation helps in preventing members of different species from producing offsprings. A zoologist is a classified way of reproductive isolation whereby it(zoologist) is classified to the mechanism of reproductive isolation into two categories
(i) Pre-zygotic. This one acts before fertilization or before mating when it comes to animals.
(ii) Post-zygotic. It acts after fertilization.
The mechanisms appear I species which are genetically controlled and whose geographic distribution overlaps or are separated.
When the patient with emphysema was
selected lung values changed (from those of the normal patient) in the
spirogram are:
ERV, IRV, RV, FVC, FEV1, FEV1 %
<span>The reason behind the changes of these values are due to the loss or inability of electric recoil. A spirogram (graph
like structure obtained by the respiratory movements) is measured by
spirometer.</span>
The alveoli needs of the epithelium for the gaseous exchange and stratified squamous epithelium are formed of multiple layers the difficulty in a gaseous exchange
What do the different organelles tend to have in common? What are their common differences?
Answer:
The average speed of the fish is:
Explanation:
You must take into account that the fish swims 10 laps, so you must multiply the perimeter by 10 to obtain the total meters swam:
- 720 m * 10 = 7200 meters.
Now, you just must divide the total meters swam by the number of minutes that the fish took to do this, so:
- 7200 m / 120 min = <u>60 m/min
</u>
Remember, ever you do an exercise like this, you must check the units, I mean, the units that the exercise wants to be the same you use, in this case, the average speed of the fish is 60 m/min.
