What are the main characteristics of a vertebrates

Which of the following is thought to be engulfed by prokaryotes eventually leading to the development of animal cells? A. mitochondria B. chloroplasts C. aerobic bacteria D. cyanobacteria

Consider the way that muscle is stimulated to move and the way that the heart is stimulated to move. Based on the positions of the electrodes, what might some challenges be to measuring ECG signals during exercise?

Question 16 Unsaved Which process melts an ore to separate useful metals from the rest of the elements in the ore? Question 16 options: 1) mining 2) prospecting 3) sifting 4) smelting

What are three sources of signals related to the regulation of cell growth and division?

Define the following what is scavenger

Can the water cycle ever end?

Robert leaves a chocolate bar in his car while attending school all day. When he goes to his car in the afternoon, the bar has changed into a gooey liquid.

How is the Linnaean system of classification different from the phylogenetic system of classification

Why do arteries travel away from the heart?

Explain why the population of rabbits might decrease if the population of mice decreased