Biology, 16.12.2020 21:50 jadynnnnn1795
During the gestational period, vital nutrients are absorbed by the digestive system and delivered to the placenta by the circulatory system. The embryo then benefits from these nutrients which are absorbed from the placenta through the umbilical cord. This demonstrates the digestive and circulatory system interacting with the Reproductive system Endocrine system Respiratory system Integumentary system
Answers: 2
Biology, 22.06.2019 05:30, KArrington815
The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen
Answers: 1
Biology, 22.06.2019 12:30, Diaryyy3986
Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled
Answers: 1
Biology, 22.06.2019 13:50, allieballey0727
The serengeti plains are part of the african savanna ecosystem and are home to a variety of different species of plants and animals. the serengeti plains experience a seven-month period of seasonal drought each year, during which the ecosystem receives only four inches of rain and the availability of some resources becomes very scarce. which type of limiting factors does the seasonal drought in the serengeti plains affect?
Answers: 2
Biology, 22.06.2019 20:30, brandyrushing3
For each of the formulas, classify the formula as either an empirical formula, a molecular formula, or both. nahco3 empirical molecular both
Answers: 1
During the gestational period, vital nutrients are absorbed by the digestive system and delivered to...
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