Answer:
After 14 years the population of these birds reached to 300.
Explanation:
The main reason for the extinction or decrease in population of these birds are over hunting or the introduction of invasive species in the ecosystem. Due to over hunting by humans many beneficial species are extinct which causes imbalance in the ecosystem which can't be corrected. These population should be increased by providing a suitable environment to these birds.
Answer:
be genotypically different
Explanation:
- Widow's peak is an example of a dominantly inherited trait, this means that any individual who receives even a single copy of the dominant allele would have a widow's peak present in the phenotype.
- In the given question, the cross is made between a homozygous dominant individual (let the genotype be WW) and a heterozygote (Genotype Ww).
- The cross can be represented as follows :
WW X Ww ----> WW Ww Ww WW
From the cross it can be seen that the<em> offsprings will have the genotype of either WW or Ww</em>, however, since W is dominant over w, the phenotype will always be the presence of widow's peak.
Answer:
Explanation:
It takes 27.3 days for moon to make one revolution this is called sidereal month and it takes 29.5 days to complete a cycle of phase this is called synodic month. The synodic month is difference is because as the moon moves around earth, the earth is also moving round the sun. Hence, the moons needs to move farther away to make up the distance that was added as the earth also revolves in other to complete the cycle.
Following gastrulation, the next major development in the embryo is neurulation, which occurs during weeks three and four after fertilization. This is a process in which the embryo develops structures that will eventually become the nervous system
Rocks can oxidize in heat and the minerals can cause the rock to crack and break off .
slaking is physical weathering because the rock is still the same, but its wet.
chemical weathering would happen the most quickly in the amazon rainforest.
chemicals in water dissolving minerals in rock is chemical weathering.
erosion removes fertile topsoil, is caused mainly by wind and water, and <span>can decrease revenue from agriculture.
erosion can be reduced by planting trees and </span><span>contour plowing.
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runoff happens when the ground cannot absorb anymore water is a true statement.</span>
