Answer:
A. is repeated many times to ensure that the results are accurate
Explanation:
A controlled experiment is repeated many times to ensure that the results are accurate
the answer your looking for :
A. genus and species
hope this helps!!
The lichens show mutualism and they are found in every biome of the Earth. The lichens have algae and fungus associated with them and they live in a mutualistic relationship with each other. Lichens can grow on soil where no other species can grow like rocks, barren soils and they enrich the soil on dying where other plants and trees can grow.
Lichens being pioneer species change the environment by building up the soil and liberating nutrients. Also the lichens contribute to the chemical weathering of the soil releasing phosphate along with erosion and weather conditions.
When the simple plants die, the wildflowers and other plants start growing replacing lichens or mosses.
From the above explanation it can be concluded that lichens alter the abiotic environment and favor other species of plants to grow by breaking down rocks from soil and providing nutrients.
Answer:
c) 330
Explanation:
Formula to calculate exponential growth is written as:
y = a( 1+r)ⁿ
a = initial quantity
r = growth rate as a decimal
n = number of time intervals
y = quantity after n time
As per the question given
a = 300
r = 0.1
n = 1 year
y = ?
Thus,
y = a( 1+r)ⁿ
300(1+0.1)¹
300 × 1.1 = 330
Therefore,
y = 330
