Answer:
Observers ahead of the wave observe an apparent increase in wave frequency
Explanation:
This is the Doppler Effect. The frequency of a wave increases when the source approaches the observer and decreases as the source recedes.
B, C, and D are wrong. Observers behind the source notice a decrease in frequency.
Answer:
Carrying capacity
Explanation:
Carrying capacity means the number of organisms that a region can support without environmental degradation.
by studying RNA, geneticists could learn about where genes begin and end on a chromosome. they could also learn about where genes are active in different types of the cells.
It can be classified in the phylum chordata.
Phylum : chordata
Sub-phylum: Vertebrata
Division: Gnathostomata
Superclass: pisces (respiration occurs typically by gills)