This scientist placed a lit candle and a plant under a transparent jar. After a while the candle went out. He left the candle and plant under the jar and tried to relight it after a while with a magnifying glass and the sun. It relit. He concluded that plants somehow change the composition of the air. Who was this scientist?
Jan van Helmont
Jan Ingenhousz
John Woodward
Joseph Priestly

Pls in your opinion, what are the limiting factors that might affect the growth or diversity of our ecosystem? respond to this question in claim, evidence, reasoning format. 1. make your claim (i are the limiting factors that might affect the growth or diversity of our 2. follow the claim with 3 pieces of evidence. evidence may be taken from the reading, the videos, previous lessons, or googled answers. site sources, too. 3. use reasoning to explain why you chose your evidence.

The term autotroph refers to an organism that: a. uses co2 for its carbon source. b. must obtain organic compounds for its carbon needs. c. gets energy from sunlight. d. gets energy by oxidizing chemical compounds. e. does not need a carbon source

There are two tomato plantlets one of them is kept in an oxygen chamber with a light source and another is kept in sunlight. both of them are watered regularly what will be the observation after two weeks