Biology, 22.06.2019 07:30 ebookhardt917
The picture represents a structure of the respiratory system. which is the function of this structure? to bring air into the body to exchange oxygen with carbon dioxide to carry air to the lungs to release oxygen from the body
Answers: 1
Biology, 21.06.2019 19:00
Which element provides strength to the exoskeleton of clams and oysters
Answers: 2
Biology, 22.06.2019 06:30
Amino acids contain the elements carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur. of the 20 amino acids found in humans, 11 are called "nonessential" because they can be manufactured by the body when needed. which elements in these 11 amino acids are commonly obtained from the metabolism of sugar molecules?
Answers: 1
Biology, 22.06.2019 09:30
Juan and carol were studying invertebrates in biology. they knew that segmented or earth worms preferred a dark, moist habitat. during this lab, they would be investigating the responses of organisms called planaria or dugesia tigrina. these were simple flatworms that still had a one-way digestive system and a very simple nervous system. juan and carol placed the planaria in a petri dish containing cool, distilled water that was partially covered with black paper. they shined a light on the dish. next, they removed the paper and placed a small amount of chicken liver at one end of the dish. they added a few large salt crystals to the water. finally, they added drops of hot water to the cool water in the petri dish. their results can be seen in the data table. according to their experiment, all but one conclusion is valid.
Answers: 1
Biology, 22.06.2019 23:20
Chimeras are interesting organisms that have two different sets of dna. chimeras occur when when two different zygotes fuse to form one organism. some chimeras have no outward symptoms,while some have two different eye colors it two different blood types what roles do mitosis and meiosis play in the process
Answers: 2
The picture represents a structure of the respiratory system. which is the function of this structu...
Mathematics, 06.12.2021 19:40
English, 06.12.2021 19:40
English, 06.12.2021 19:40
Mathematics, 06.12.2021 19:40
Mathematics, 06.12.2021 19:40
Computers and Technology, 06.12.2021 19:40
Spanish, 06.12.2021 19:40
Computers and Technology, 06.12.2021 19:40
World Languages, 06.12.2021 19:40