Answer:
4 km/h
Explanation:
Average speed = Distance / time
Distance = 2 km
Time = 30 minutes = 0.5 hours [For units to match]
Average speed
= 2 / 0.5
= 2 x 2
= 4 km/h
Answer:
Over time, these advantageous traits become more common in the population. Through this process of natural selection, favorable traits are transmitted through generations. Natural selection can lead to speciation, where one species gives rise to a new and distinctly different species.
Explanation:
Formula of a triangle: length*breadth/2
Endotherms, such as birds and mammals, use metabolic heat to maintain a stable internal temperature, often one different from the environment. Ectotherms, like lizards and snakes, do not use metabolic heat to maintain their body temperature but take on the temperature of the environment.
After DNA replication has taken place, two molecules, each with one original and new strand is formed. This supports the idea of DNA replication.