Answer: Each body segment of an earthworm contains four pairs of setae, which are used to move the worm. The setae of marine worms are found in bundles. Leeches do not have setae at all.
Sample Response
Explanation:
False
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The answer is false
The answer is A
he is known as the father of natural selection :D
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.
The key adaption of angiosperms that allowed these plants to dominate the landscaper is flowers
<h3>What is the most important adaptation of angiosperms?</h3>
Angiosperms initially appeared in the late Cretaceous Period, between 125 and 100 million years ago.
Flowers and fruit were developed by angiosperms to draw pollinators and protect their seeds, respectively.
Flowers come in a variety of shapes, sizes, and scents that are all designed to entice pollinators.
An egg that has been fertilised grows into a seed that is protected by a fleshy fruit.
Throughout the Mesozoic period, numerous contemporary insect groups developed alongside angiosperms, including insect pollinators that supported angiosperm growth; in many cases, flowers and their pollinators coevolved.
learn more about angiosperms refer:
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