2. which structures in the diagram above connects the umbilical vein with the vena cava and connects the pulmonary artery with the aorta?

a: a, the ductus arteriosus; d the ductus venosus
b: b, the ductus arteriosus; d the ductus venosus
c: b, the ductus venosus; d the ductus arteriosus
d: a, the ductus venosus; d the ductus arteriosus

Plants are used for so many things. in your house alone, you can probably look around you and see where plants have been used. for this project, you will identify various uses of plants in your home. directions make a list of objects, products, and any other items around your house where plants were involved in the production of the item. you should have a list of at least twenty items. then respond to the following questions: note: your list of objects and the answers following should be at least 200 words in length. what if plants no longer existed on earth? how would your life be different?

What is a codon and where is it found

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?