Answer: Individuals make up a population; populations make up a species; multiple species and their interactions make up a community; and multiple species and their interactions make up ecosystems when you include the abiotic factors. This is the hierarchy of ecology.
hope this help
Explanation:
Where’s the photo ? or answer choices?
I can't read the top, but based on information I know to be true, letter B is the answer because it shows multiple predators eating the same prey.
Answer:
Assume that the left ventricle of a child's heart has an EDV=90 mL, and ESV=60mL, and a cardiac output of 2,400 mL/min. His SV is _30_ mL/beat and his HR is _80_ bpm.
Explanation:
Calculation can be achieved by using this formula.
Stroke Volume (SV) = End diastolic volume – End systolic volume
Given that
End diastolic volume = 90
End systolic volume = 60
Calculations
Stroke Volume (SV) = 90 - 60
Stroke Volume (SV) = 30mL / beat
Heart rate can be calculated using this formula:
Heart Rate = Cardiac Output / Stroke Volume
Given that
Cardiac Output = 2400 mL / min
Stroke Volume (SV) = 30mL / beat
Calculations
Heart Rate (HR) = 2400 / 30
Heart Rate (HR) = 80
m bpm