Answer:
A bacteriophage is a type of virus that attacks bacteria. In the lytic cycle, the virus hijacks the cell machinery of the bacterium that it has infected. In the lysogenic cycle, the viral DNA is incorporated into the bacterial DNA.
Explanation:
Its a type of virus.
Answer:
b. It converts messages that are received from the central nervous system into involuntary reflexes.
Explanation:
The somatic nervous system (SNS) is part of the peripheral nervous system (SNP), which is responsible for transmitting motor and sensory information both back and forth to the central nervous system (CNS).
The main function of the somatic nervous system is to connect the central nervous system to the organs, muscles and skin. This allows us to perform complex movements and behaviors. Somatic neurons carry messages from the external areas of the body that are directly related to the senses. The information captured by the sensory systems is transmitted to the central nervous system. The CNS then sends signals through the nervous networks of the somatic system to the muscles and organs.
Proteins that tag pathogens for destruction by immune cells are called Antigens.
Answer:
Yes, the humans are invasive species.
Explanation:
The homeland of the modern day humans is Africa, thus they are native o the African continent. But the humans started to spread gradually, first in Eurasia, and later in Australia, North America, South America, and the Pacific islands, to a point now where they have reached pretty much every corner of the world. This is a textbook example of an invasive species that has entered into new ecosystems. Not just that the humans were entering into new ecosystems, but they also were changing the ecosystems, more often then not causing a lot of damage on them, leading to the destruction of lot of habitats and extinction of lot of species.
