I think the correct answer from the choices listed above is option A. The relationship between the themes of “place” and “human-environment interaction” is that the characteristics <span>of “place” include things like economic activity, architecture, and culture, all of which are human elements that alter or can be influenced by the environment. </span>
Answer:
Gomphosis
Explanation:
Fibrous Joints:
Fibrous joints are immovable or fixed joints because they have the characteristic that they do not move. These joints have collagen which is a white connective tissue and it help in connection with other tissues.
Fibrous joints are mainly three types called sutures, gomphosis and syndesmosis.
Suture:
Suture is one of the fibrous tissue which only present in skull called cranal suture. There is tiny amount of movement present it sutures for elasticity of skull.
Gomphosis:
Gomphosis is found in the tooth which bind tooth with tooth socket bone by periodontal ligament. This joint is completely immovable.
*Peridontal ligament is the fibrous tissue which is present between tooth and tooth socket.
Syndesmosis:
Syndesmosis is found between tibia and fibula joint which is joined or connected by connective tissue (ligament). This fibrous joint is slightly moveable.
Answer:
The major structural difference between chromatin and chromosomes is that the latter are more organized and condensed.
Explanation:
Chromatin is genetic material packaged into a complex by special proteins (histones). That complex is in the form of uncoiled structures, so chromatin fibers are long and thin. Chromatin structure is permissive to DNA replication, transcription and recombination events.
On the other hand, chromosomes are highly condensed structures of genetic material that are formed just before the cell division.
Answer: CHANNEL PROTEINS provide openings in the plasma membrane for substances to flow through without changing structure, and CARRIER PROTEINS allow passage of substances through the plasma membrane after undergoing a subtle change in shape.
Explanation: They are described thus:
A channel protein is a protein that allows the transport of specific substances across a cell membrane.
Carrier proteins are proteins that carry substances from one side of a biological membrane to the other. Many carrier proteins are found in a cell’s membrane, though they may also be found in the membranes of internal organelles such as the mitochondria, chloroplasts, nucleolus, and others.
The answers are sympathetic nervous system and the parasympathetic nervous system, respectively.
The sympathetic nervous system (SNS) controls the response of our body to threats or stressors. It prepares the body for an intense physical activity by increasing the body's biological processes like heart rate, breathing and the like. This is also known as the "Flight-or-fight" response.
The parasympathetic nervous system (PNS) on the other hand, responds the opposite way. When threats or stressors are no longer present, the PNS works to relax and calm the body. This is done to help the body recover from the high activity it previously went through.
