Poshpaws's user avatar
Poshpaws's user avatar
Poshpaws's user avatar
Poshpaws
  • Member for 12 years, 3 months
  • Last seen more than 2 years ago
  • Canary Islands
102 votes
Accepted

Is there a reason why human eyesight and plants make use of the same wavelength of light?

39 votes
Accepted

Life without DNA?

23 votes

What is the lowest pressure at which plants can survive?

22 votes

Why do plants have green leaves and not red?

19 votes
Accepted

Are single-celled organisms capable of learning?

14 votes
Accepted

When did vision evolve for the first time?

13 votes

How do fairy rings propagate?

11 votes

How do biological communities at deep-ocean hydrothermal vents migrate between vents?

11 votes
Accepted

Why do some plant species have lobed leaves, while similar species in the same habitat don't?

10 votes
Accepted

How would a plant sprout and grow in a zero gravity environment?

10 votes
Accepted

Free Radicals for aging

10 votes

Human perception of time depending on age

9 votes

How did the first self replicating organism come into existence?

8 votes

Is there life on other planets and if so how frequent?

8 votes
Accepted

Defining paper(s) in epigenetics

8 votes

What is the most difficult feature to explain evolutionarily?

8 votes
Accepted

Why do plants have pith and how is it useful to them?

8 votes

Are there any plants that fix their own nitrogen?

6 votes
Accepted

Why can you graft two unrelated cacti successfully, but you cannot do this on garden trees?

6 votes
Accepted

What elements are a possible basis for life?

5 votes

How did the nucleobases in the Murchison meteorite form?

4 votes
Accepted

How does the NAD+/NADH ratio affect lifespan in vertebrates?

4 votes
Accepted

Should we be looking for extra-terrestrial life on comets?

4 votes

Why do cucurbits produce so much fluid when their stems are cut?

3 votes

What would need to be discovered to prove there is extraterrestrial life?

2 votes

How are there multiple varieties of the potato?