Biology, 12.07.2019 16:30 dessyrob05
Large amounts of oxygen gas first appeared in earth's atmosphere about years ago. 500,000 3.5 million 10 million 2.7 billion 3.5 billion
Answers: 1
Biology, 21.06.2019 19:40
Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation
Answers: 1
Biology, 21.06.2019 20:00
Many people try to eliminate fat from their diets. which is one reason it is necessary for humans to eat fat? a. eating fat is the fastest way to get energy. b. fat eliminates triglycerides from the body. c. saturated fats clear out the blood vessels. d. fat nerves transmit signals. , this is for apex in summer school.
Answers: 1
Biology, 22.06.2019 05:20
Match the description of each organism to the appropriate category
Answers: 2
Biology, 22.06.2019 05:30
The vaccine in a flu shot contains weakened flu viruses. how does a flu shot work with the immune system? a. it destroys lymphocytes. b. it destroys macrophages. c. it activates macrophages. d. it activates lymphocytes.
Answers: 3
Large amounts of oxygen gas first appeared in earth's atmosphere about years ago. 500,000 3.5 milli...
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