The cardiovascular system is my best answer. hope this helped, have an amazing day gorgeous :)
The true statements are:
Only a fraction of matter consumed at lower trophic levels is transferred to higher trophic levels to produce growth and release energy through cellular respiration.
And
There are fewer organisms at the higher trophic levels of a food web.
These first statement is actually the reason for the second.
Answer:
The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history.
Explanation: