For a introduced species to be invasive species, there needs to be certain characteristics of the species.
<h3><u>Explanation</u>:</h3>
Invasive species are the species that belong to some other place and are introduced to a new place by means of any human interference. But many species are often transferred from one place to another. But not all of them remain there as an invasive species. This is because for being an invasive species, they need to have certain characteristics:
A. They need to have high rate of reproduction.
B. They need to have short dormancy periods.
C. They need to have high generic variability.
D. They need to be polyphagous and gregarious.
E. They need to have high dispersal rate and great adaptability.
F. They need to have phenotypic plasticity.
Around what time that they became extinct. They measure the amount of decay on the bone, and it gives them pretty accurate info
Answer:
The genotypes of the two parents: normal head shape (HH) and Bart head shape (hh)
The genotypes in the F1 generation= Hh
The phenotypes present in the F1 generation= All normal head shape
Explanation:
Let's assume that the allele "H" is responsible for the normal head shape while the allele "h" gives Bart head shape. According to the given information, both the parents are homozygous. The genotype of the parent with normal head shape would be "HH" while that of the one with Bart head shape would be "hh". Since the normal head shape is dominant, all the F1 hybrid progeny would exhibit "normal head shape".
Answer:more decrease in fish
Explanation:because that penguins source of food most of the time
