Balances & scales
and a
Space Linear Acceleration Mass Measurement Device (SLAMMD)
because the probability of hemophilia would be 1:4
i guess there should be some options for this question ...
Primary succession takes place when barren land is exposed and made available for plant growth.
The first step is the retreat of the glacier. Next, pioneer species begin to inhabit the exposed land. These species include lichens and they break down rocks and create soil. Some years later, more complex plants start growing in the soil and insects also begin to inhabit it. The remains of all of these organisms add nutritional value to the soil. As soil thickens, more complex plants and animals inhabit the region, until finally, the soil is thick enough for entire forests to grow.
When limiting factors increases, diversity in population decrease.
