Answer:
Your answer would be ( A star has 2 star systems )
Hope this helps have an amazing day........
1) Speed = distance / time
s = 60 / 2
s = 30 km/h
In short, Your Answer would be Option B
2) Speed = distance / time
s = 25/4
s = 6.25 km/h
In short, Your Answer would be Option B
[ Direction not needed as it is speed not velocity ]
Hope this helps!
Answer:
Explanation:
Eras are made up of eons, but hours are made up of minutes. Eons are made up of eras, but minutes are made up of hours. Eras are not even divisions of time, while minutes are. Eons are even divisions of time, while hours are not.
Answer:
False
Explanation:
the object will float if the force of water (buoyancy )is greater than the objectives weight
Distribution of phenotypes within a population may be impacted by different types of natural selection. These types of selection include;
Directional selection involves a change in the environment shifts of phenotypes observed. Example is the giraffe neck-length, where the length got longer and longer over time to reach the leaves at the top of trees.
Stabilizing selection , this is a selection where an average phenotype is favored. example is number of eggs laid by birds such that too many eggs will be a waste of energy because some chicks would starve.
Disruptive selection is a selection where individuals with an average value of a trait are affected most while those with values below average are affected least. Example small individuals are capable of hiding from predators while big individuals can not fit in the hiding place but instead will fight with predators.
