An endoskeleton of calcified cartilage
C. Direction
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Answer: Nuetrophils are the most abundant luekocytes (white blood cells).
Explanation: Nuetrophils also known as granulocytes because they have a granule in their cytoplasm, are the most abundant phagocytic white blood cells. They are the first ones to arrive at the site of infection by injury, bacteria or during apoptosis (programmed cell death) in response to chemotaxis and inflammation feedback loops. They bind to bacterial receptors and engulf(digest) them together with any other foreign matter and dead cells.
Answer: The plant becomes self-sufficient when leaves grow onto it.
Explanation: The leaves will start photosynthesis instead of the Cotyledons providing nourishment for the seed.
Answer:
The correct answer will be-
1 .Arbovirus is an arthropod-borne virus
2. An arbovirus is maintained in nature through biological transmission
Explanation:
An arbovirus is a group of the virus which spreads in nature especially infect human from the infected insects (Arthropods). The most common arthropods spreading the disease caused by the virus is the mosquitoes and few ticks, gnats and fleas.
The viruses are maintained in nature through biological transmission between the vertebrate hosts by blood-sucking arthropods like mosquitoes.
Thus, the selected options are correct.
