Answer:
Secondary succession generally occurs more rapidly in an area than does primary succession because soil formation has already occurred.
Explanation:
- Primary succession is the sequential change in environment and community which is a new habitat for example,the formation of an island.
- Similarly secondary succession is also the change in environmental factors that occurs in a disturbed community which has been colonized already.
- Secondary succession always starts after the primary succession so it generally occurs faster that primary succession.
- For example the formation of soil is the primary succession for a new habitat that makes the secondary succession faster.
Answer: Incomplete Dominance
Explanation:
Incomplete Dominance occurs when an heterozygous phenotype, different from the two parents homozygous phenotypes is expressed in the OFFSPRING.
FOR EXAMPLE: A pure breeding Red flower (RR) plant crossed with a pure breeding White flower (rr) plant and PRODUCES offspring with PINK flowers (Rr). This is Incomplete Dominance.
Answer:
D (purple flower plant is dominant)
Explanation:
Gregor Mendel was regarded as the "Father of Genetics" because of his outstanding contribution to discovering the pattern of inheritance. In his experiments with purebreeding purple and white-flowered plants, he discovered that the F1 offsprings were all purple-flowered.
This observation made him to propose his LAW OF DOMINANCE, which states that one allele of a gene is capable of masking the expression of another in a heterozygous state. In this case of flower colour gene, the allele for purple color (P) is masking the gene of the white colour (p) in a combined state. Hence, purple allele is said to be DOMINANT over white allele.
He discovered that the white allele was being masked when he performed a dihybrid cross i.e. F1 self cross to derive a plant with white flowers.
Answer:
the second one
Explanation:
it has very few abiotic factors
Answer:
Voltage-gated sodium channels
Explanation:
The voltage-gated sodium channels are integral membrane proteins that function to generate potential and thus propagate impulses in nerve and muscle cells. The opening of voltage-gated sodium channels produces a modification in the membrane potential through the entry of Na+ ions into the cell, thereby generating an electrochemical gradient that depolarizes the cell