Answer:
by counting the number of tadpoles and adult animals 2 weeks post-metamorphosis
Explanation:
During its growth, the tadpole turns into a frog by a complex biological process known as metamorphosis, producing an adult land animal with 4 legs to move and lungs to breathe. During this process, tadpoles face different threats such as, for example, predators (i.e., turtles, birds, fish), diseases that spread quickly through natural populations, limited food, etc. In natural environments, it is possible to determine the mortality rate during metamorphosis by calculating the number of tadpoles and then by comparing it with the number of adult individuals (i.e., post-metamorphosis). Moreover, it is also possible to determine the causes of death by placing fresh tadpoles in experimental optimal conditions and then by comparing both mortality rates. Another mode to determine the causes of death is the examination of these dead animals by a wildlife pathologist.
Answer:
The grasshopper cannot be in the same location it started because by 2017, it would have covered a distance of 1017576.5 to either left or right. and that distance is not an integer.
Explanation:
The grasshopper jumps in integer of 1 cm to either right or left
Calculating for the total distance covered in 2017 jumps
Total Distance = (2017 x 2018)/2 = 2035153 cm
To either right or left: this implies that the total distance be divided by 2
=> 1017576.5 cm
It shows that at some point, the grasshopper will not be in a position of integer on either right or left.
Therefore, it can not get to its initial point of start.
Answer:
Habitat
Explanation:
the environment in which an animal lives is its habitat
Answer:
Population A has 4590 and population B has 1520 bacteria
Explanation:
Let’s mark bacteria:
a - bacteria from population A
b - bacteria from population B
Every bacteria <em>a</em> needs 4 units of the first nutrient and every bacteria <em>b</em> needs 1 unit of the same nutrient, so we can write it down as:
4*a + 1*b = 19880
Let’s do the same for the second nutrient. Every bacteria <em>a</em> needs 5 units of the second nutrient and every bacteria <em>b</em> needs 6 units of the second nutrient:
5*a + 6*b = 32070
Now there are two equations and two unknowns. From the first equation, we can separate <em>b</em>:
b = 19880 - 4a
Let’s place this <em>b</em> to the second equation:
5a + 6*(19880 - 4a) = 32070
5a + 119280 - 24a = 32070
119280 - 32070 = 24a - 5a
19a = 87210
a = 4590
This can be brought back to: b = 19880 - 4a
b = 1520