Answer:
<em>Embryo</em><em> </em><em>retention</em><em>,</em><em> </em><em>a</em><em> </em><em>cutic</em><em>le</em><em>,</em><em> </em><em>stomat</em><em>a</em><em>,</em><em> </em><em>and</em><em> </em><em>vascu</em><em>lar</em><em> </em><em>tissu</em><em>es</em><em>.</em>
Answer:
Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But humans have burned so much fuel that there is about 30% more carbon dioxide in the air today than there was about 150 years ago, and Earth is becoming a warmer place.
Cell-tissue-organ-organ system-organism
<span>The statement that is least likely to support the endosymbiotic theory is that mitochondria and chloroplasts have DNA that resembles bacterial DNA.
</span>