Answer:
Difference Between Endangered Species and Threatened Species. ... what are the other causes apart from humans that can drive an entire species to ... When a species exist no longer, it is considered as extinct.
Natural selection<span> acts upon two major sources of genetic variation: </span>mutations<span> and</span>recombination<span> of </span>genes<span> through sexual </span>reproduction<span>. Most </span>mutations<span> do not affect the reproductive fitness of individuals -- some may be beneficial, some may be harmful, and </span>many<span> may be neutral. </span>Mutation rates<span> per gene are generally low</span>
The wrinkled pea will have two recessive alleles on the locus.
Explanation:
Two forms of same gene are called alleles of that gene.
The allele that expresses itself under heterozygous condition is called the Dominant allele.
The recessive allele can express itself only if they are under homozygous combination i.e. both the alleles on homologous chromosome are recessive.
Here wrinkled pea is a recessive trait and if it is expressed in the phenotype then the genotype of the plant must be homozygous for the recessive allele.
It goes from high to low. It is explained as it is trying to spread out or it is trying to be equal across a space.
Answer:
Some possible solutions include:
1- to replace oil and gas energies with renewable sources
2- to replace fossil fuel-based transport systems with sustainable methods
3- to recycle material
4- to prevent air pollution
Explanation:
The replacement of fossil fuel energy sources with renewables energy sources (e.g., solar energy, wind energy, geothermal energy) can be considered the most important strategy to reduce (and even revert) the human effects on climate change. Moreover, sustainable transportation systems or 'green transport methods' (e.g., walking, cycling) don't consume fossil fuels, and therefore they have zero impact on the environment. Recycling materials can also be very useful in order to reduce greenhouse gases (e.g., CO2) by reducing the consumption of energy. Finally, methods to prevent air pollution (for example, by avoiding the burning of leaves and trash) can be applied in order to reduce CO2 emissions and thus minimize environmental impact.
