Answer:Make use of spaced repetition algorithms (SRSs) ...
Study vocabulary in context. ...
Make the vocabulary personal, and emotional. ...
Read regularly, and from a variety of sources. ...
Link vocabulary with mnemonics and word associations. ...
Pool new vocabulary from a frequency list.
Explanation:
Answer:
this and that are are referring to objects that are singular in number , while these and those are referring to objects that are plural in number
Answer:
The 11 organ systems include the integumentary system, skeletal system, muscular system, lymphatic system, respiratory system, digestive system, nervous system, endocrine system, cardiovascular system, urinary system, and reproductive systems.