4 years ago

What is the starfish experiment?

1 answer:

6 0

Answer:

When starfish were removed from their environment, the species richness of that area went down. This was because the starfish ate the mussels, and when the starfish were removed, the mussels became abundant and preyed on many of the other species.

This experiment showed that the starfish were a keystone species. A keystone species is a species that has a low biomass but a large impact on the community they are living in.

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raketka [301]

I’m pretty sure it’s C but try googling it

5 0

4 years ago

A European species of marsh grass called Spartina maritima has a diploid number (2n) of 60. A similar species native to North Am

puteri [66]

Answer:

2 n = 61 Chromosomes

Explanation:

If the plants that are produced are fertile then they must have a chromosome number hybrid of previous two species and that is 122. This is an example of tetraploidy. It is crucial that the chromosome number of the species should be even otherwise the pairing will result in a mismatch and the produced offspring will be a sterile hybrid.