Answer:
A
Explanation:
It's passive transport because it does not require energy, i.e. you don't need to invest ATP to make it happen. Osmosis is the movement of water from area of higher solute concentration to area of lower solute concentration. It happens via channel proteins called aquaporines. Simple diffusion is when gases like O2 or CO2 difuse through the cell membrane. Again, they go from area of higher concentration to area of lower concentration. Facilitated difusion is how large and polar molecules go in and out of the cell. This happens via transmembrane proteins down the concentration gradient (from higher to lower concentration).
the answer is option a:the maximum number of individuals that a place could have
Answer:
Horizontal gene transfer.
Explanation:
Horizontal gene transfer happens when an organism acquires a gene that benefits its development. This individual then can transfer this information to another cell without it being its breed or duplicate. Normal gene transfer happens "vertically" from a parent to a daughter cell, but in this case, duplication is not needed for another organism to acquire the gene.
Explanation:
A. a chemical that kills plants and animals that come in contact with it
- Evolutionary biologists believe that the "fight or flight" response was crucial for the survival of many species throughout Geologic Time.
- Both the sympathetic and parasympathetic nervous systems are vital to our health and survival.
- The neural system of all animals is composed of highly specialised cells called neurons which can detect, receive and transmit different kinds of stimuli.
- When the "fight or flight" response has been activated of the autonomic nervous system called the sympathetic division controls this response.
What is human nervous system?
- The human nervous system is divided into two parts,
1. The Central Neural System(CNS)
2. The Peripheral Neural System(PNS)
- The CNS includes the brain and the spinal cord and is the site of
- information processing and control.
- The PNS comprises of all the nerves of the body associated with the CNS i.e., brain and spinal cord.
- The nerve fibres of the PNS are of two types :
1. Afferent fibres
2. Efferent fibres
- The PNS is divided into two divisions called;
a. Somatic neural system
b. Autonomic neural system
- The somatic neural system relays impulses from the CNS to skeletal muscles while the autonomic neural system transmits impulses from the CNS to the involuntary organs and smooth muscles of the body. The autonomic neural system is further classified as;
(i) Sympathetic neural system
(ii) Parasympathetic neural system
To learn more about human nervous system: brainly.com/question/26348097
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