Answer:
The correct answer will be option-C.
Explanation:
The evolution of human species in which one species transformed into another species evolves by a mechanism known as anagenesis.
Anagenesis is the mechanism of evolution which transform one species into a different species within a lineage. This process is slow and takes time to form species, therefore, is also known as gradualism or phyletic transformation.
The<em> Homo sapiens</em> evolved from<em> Homo erectus </em>where<em> Homo sapiens </em>overwrites the ancestral species and caused the species to become extinct.
Thus, Option-C is the correct answer.
Answer:
Thousands of species is an example of biodiversity.
<u>Explanation:
</u>
<em>Biodiversity is the short term for biological diversity which was coined by E.O. Wilson</em>. <em>Biodiversity refers to all the species of plants (flora) and animal Kingdom (fauna) present on the Earth.</em> It covers different types of ecosystems present in a well-defined area whether it be terrestrial or aquatic and the genetic variability within a species.
The variety of crops and livestock present on Earth have played a great role in human development. Without them, life would not be possible. That’s why it is our moral duty to conserve our biodiversity. If we preserve it for our future generations, we will survive. If they are overused or misused, the entire food chain would perish.
Answer:
B. Complex multi-cellular organisms will suffer more, because vital differentiated cells that the rest of the organism requires will be lost.
Explanation:
If the predator takes bite of an organism, complex multi-cellular organisms will be likely to suffer more. Multi-cellular organisms have specialized cells that perform specific functions like skin cells, muscle cells, etc. If any part of such organism is lost, the whole body’s mechanism would be harmed.
Answer:
The correct answer is between the arachnoid and the pia. Thus option 'a' is correct.
Explanation:
Subarachnoid hemorrhage is the bleeding in the brain more precisely in the subarachnoid space-the space between the arachnoid and the pia matter surrounding the brain.
The layers that surround the brain termed as meninges of the brain of the brain include:
1) Dura matter the outermost layer close to the skull.
2)Arachnoid matter.
3) Pia matter, the innermost layer that is in contact with the brain.
A subarachnoid hemorrhage can occur due to many causes such as an accident , ruptured aneurysm, e.t.c. It is a life threatening condition and is accompanied with stroke.
Answer:
A system is a group of interrelated interacting, or interdependent parts that for a complex whole. A system is a group of interrelated interacting, or interdependent parts that for a complex whole.
Explanation:
