Answer:
Hunting and Gathering
Explanation:
The first humans were nomads who traveled with their food. This means that they would seasonally move across regions hunting the animals there and gathering plants to eat. These people existed before civilization started. Centuries later, these people would develop agriculture and start society. However, the first people were still hunter-gathers.
Answer:
The most appropriate answer would be b. gene flow at work.
Transfer of pollen grain forms the example of vertical gene transfer that is, transfer of a gene from parent to the offspring.
A pollen grain is the male gamete of the parent plant. It contains the genetic material or information of the plant.
It is pollinated or transferred to the stigma of the plant of same species with the help of air, water, bees et cetera. Successful pollination results in the formation of the zygote.
Thus, gene or genetic material is transferred from parent plant to the offspring. Hence, the student can use "gene flow at work" as the caption of the picture.
Newtons third law is action/reaction, for every action there is an equal opposite force
a nitrogenous base, a sugar, and a phosphate. A nucleotide is the basic subunit of both DNA bad RNA. It contains a base with nitrogen, a 5-carbon sugar and a phosphate group.
