Answer:
C. A hillside that has been cleared by a volcanic eruption.
Explanation:
Pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire or other natural disasters. Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rocks into soil for plants.
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Primary succession is the colonization of living organisms into an area that was not previously colonized by any living things. A Secondary succession is the regeneration of the living community after a major disturbance.
Answer:
These underground reservoirs of steam and hot water can be tapped to generate electricity or to heat and cool buildings directly. ... It is simply power derived from the Earth's internal heat. This thermal energy is contained in the rock and fluids beneath Earth's crust.
Answer:
mRNA: UUU/CUU/GUU/AAG/UUU/AAA/GGU/UGA
Amino Acids: Phe/Leu/Val/Lys/Phe/Lys/Gly/STOP
Explanation:
A-U
G-C
T-A
Answer:
Answer is D.Produce non-identical genetically different gametes and reduction of chromosomes,creating a haploid gamete.
Explanation:
Meiosis is essential for sexual reproduction.In humans diploid gamete-mother cells or germ line undergo meiosis to produce haploid gametes.
The chromosomes pairs of each parent undergo crossing over during meiosis.so daughter cells i.e gametes have genetic variations.When gametes fuse and form zygote ,its genetic make up is different from both parents.thus meiosis allows a species to bring variations in next generations.Benenficial variations help organisms to adapt to the changes in environment.