Seeds are an absolutely crucial element in the evolution of many plants because they allow the plant to have many chances at reproducing, because the plant usually discharges several seeds.
Answer:
a spider has 4 pairs of legs, since they have 8 legs
lichens, grasses, shrubs, trees is the correct ecological succession fro organism. Option C is the right answer.
Explanation:
The sequence of changes in a species which make it useful to make a community or colonization.
The rocks being colonized for the first time by an organism, this organism is termed as pioneer species. In this series given lichens are the pioneer species.
lichens are the microorganisms that colonize the bare rock and starts the soil forming process from the acids they secrete.
primary ecological succession will be as:
lichens inhabit bare rocks and breakdown the minerals rich material in the rock and die to produce organic material so that new species could be formed as grasses will grow which will become shrub and eventually the tree.
Animals eat those grass, shrub or tree products.
lichens, grasses, shrubs, trees,
Absolute dating methods determine how much time has passed since rocks formed by measuring the radioactive decay of isotopes or the effects of radiation on the crystal structure of minerals. Paleomagnetism measures the ancient orientation of the Earth's magnetic field to help determine the age of rocks.
There's 50% chance of having a boy.
There's nothing specific states you're gonna have a boy. It is just like luck.
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It is simple, divide 100% by 2.</em>