What organisms alternate between haploid to diploid?

Which of the following is not a defining characteristic of plants?

Question 3(multiple choice worth 4 points) (02.04 lc) which best describes the function of chloroplast? allows certa molecules to enter and exit the cell makes food during photosynthesis detoxifies waste products o packages proteins into vesicles

Explain why ecosystem diversity results in species diversity in a healthy biosphere