The main component of the cell membrane is a phospholipid bi-layer or sandwich. The heads (the phospho part) are polar while the tails (the lipid part) are non-polar.
The question is incomplete as it does not have the options which are:
a. the STM recency effect.
b. delayed response coding.
c. the phonological loop.
d. the visuospatial sketch pad.
Answer:
The visuospatial sketch pad.
Explanation:
Working memory is a part of short term memory which is related to the recall and use of the information in the middle of another activity.
visuospatial sketch pad was proposed by Graham Hitch and Alan Baddeley in 1974 and considered the pad as a component of Working memory.
The sketchpad is held the information which is collected during the initial processing and is later saved as long term memory. The pad collects the information related to calculation, physical environment, visualization and many other activities which are later recalled.
Thus, the selected option is the correct answer.
Answer:Two of the most important characteristics of seawater are temperature and salinity – together they control its density, which is the major factor governing the vertical movement of ocean waters. The temperature of seawater is fixed at the sea surface by heat exchange with the atmosphere. brainliest plz!!

The use of resources should be sustainable because many non renewable resources like coal and petroleum can be exhausted if they are over exploited.
An organism may establish a definite area within the habitat and defend it from all other members of the population. The organisms which establish and defend a territory are more vigorous and better fitted members of the population. They are more assured of producing off-springs and thus perpetuating their more favourable attributes within the species.