The given statement is false, as Paleolithic people thrived in the groups of 20 to 30 individuals.
At the time of Paleolithic, the hominins gathered together in brief societies, like bands, and survived by fishing and gathering plants, scavenging or hunting wild animals. The Paleolithic era is featured by the application of knapped stone tools, however, tools made up of woods and bones were also used by humans at that time.
Answer: 2, 4 and 5.
Explanation:
Human system are made of various organs which in turn are made up of various tissues which in turn are made up of various cells. Cells are therefore much more numerous than systems.
As already mentioned, organs are made up of tissues which are made up of cells so statement 4 is right.
As systems are made up of various organs working together, they are more complex than the individual organs. For instance, the Muscular system is more complex than the triceps or bicep muscles.
Answer:
Water.
Explanation:
Osmosis is the diffusion of water across a memnbrane.
Answer:
Option C
Explanation:
Gastrocnemius and soleus muscles are jointly known as calf. Gastrocnemius is the larger muscle and connects to the knee joint while soleus is smaller muscle that connects to the portion of leg just below the knee. When gastrocnemius is stretched, the knee remains straight while when the soleus is stretched the knee bends. If a person feels difficulty in bending or stretching the knees, he/she must be facing the problem with the calf muscle. Hence, Option C is correct
Convection Current
This happens when there is a noteworthy contrast in temperature between two sections of a liquid. At the point when this temperature distinction exists, hot liquids rise and cool liquids sink, and after that streams, or developments, are made in the liquid
