The zooplankton community is an important element of the aquatic food chain. These organisms serve as an intermediary species in the food chain, transferring energy from planktonic algae (primary producers) to the larger invertebrate predators and fish who in turn feed on them.
Zooplankton are good indicators of change in nutrient pollution over time because they respond quickly to changes in nutrient input to the waterbody.
Answer:
O Fruit fly gametes have 2 chromosomes while parent cells have 4 chromosomes.
Explanation:
The fruit fly is a diploid (2n) species with a chromosome number equal to 4, which means that somatic cells have two sets of homologous chromosomes, each set composed of two chromosomes (2n = 4). Moreover, fly gametes are haploid (n) cells, containing each a complete set of two non-homologous chromosomes (i.e., half the amount of DNA compared to parent cells). During meiosis, a single cell divides twice following one complete round of DNA replication, producing thus four gametes with a haploid number of chromosomes.
Answer:
the frequency of the wave is 2 hertz
Explanation:
Frequency is defined as the number of cycle of waves that occur in one second.
Here the total number of cycle is equal to 10
The total time in which these 10 cycles occur is equal to 5 seconds
Now, mathematically frequency is equal to
where is equal to number of cycles
and t is time
Putting the given values in above equation we get -
hertzs
Answer:
all of them are connected one way or the other
Explanation:
atom is connected with protons, electrons and neutrons
hydrogen and oxygen are atoms. water is a molecule.
atomic mass and atomic number are interrelated
Answer:
Low traffic flow
Explanation:
Flashing red and yellow lights can control some intersections during low traffic flow.
The red traffic light signifies the stop sign and even when flashing, is still recognized as such thus, cars are expected to slow down when approaching flashing red and yellow lights and if the traffic is low, traffic flow can proceed seamlessly