Answer:
If mismanaged, renewable resources will become non-renewable.
Explanation:
For example: Groundwater can be over-pumped. If you burn a tree (plant) and don't plant another one.
Answer:
The correct answer is 4: "The exception to Mendelian laws of inheritance that best explains the mentioned symptoms is codominance".
Explanation:
In codominance, both alleles can be expressed. In these cases, heterozygote individuals<em> instead</em> of showing an <em>intermediate phenotype</em>, express both of the alleles. Their phenotype is an additive expression of their parents' genes.
In cystic fibrosis, there is a gene responsible for coding for a protein named "cystic fibrosis transmembrane conductance regulator, CFTR".
-Most of the people have two copies of the normal allele and produce the functional CFTR protein form.
-Patients with cystic fibrosis have two copies of the mutated allele and so produce the mutated and dysfunctional form for this protein.
-Heterozygote people possess only one normal CFTR allele and a mutated form for the same allele and produce a normal protein and a mutated protein.
In the last case, both alleles are codominant and they express in heterozygote individuals. Given the fact that the normal allele produces enough functional CFTR protein, these individuals do not have any adverse effect and the mutated allele is recessive at a physiological level.
The options are:
A) leaf abscission to prevent further loss
B) early flowering to try to reproduce before being eaten
C) production of chemical compounds for defense or to attract predators
D) production of physical defenses, such as thorns
Answer:
The correct answer of this question is- C) production of chemical compounds for defense or to attract predators
Explanation:
In response to attacks by herbivores, plants produce chemicals that are toxic to the herbivores which can even kill them or some chemicals can spread in the air and can attract the predators of those herbivores that attack that plant species.
Plants produce secondary metabolites that play an important role in protecting the plant from predators because they can be toxic and antimicrobial for example flavonoids, alkaloids, saponins. Plants do not get harmed by these metabolites because they have their own detoxification method. So the correct answer is C.
Answer:
Monohybrids
Explanation:
Gregor Mendel performed many experiments to discover the principles that governs inheritance. He crossed purebreeding plants with certain traits to obtain offsprings that phenotypically express same traits. The offsprings will be phenotypically identical to one of the parents for that particular trait. This kind of cross is called a MONOHYBRID CROSS and the offsprings are referred to as MONOHYBRIDS.
They are called MONOHYBRIDS because they differ in only one characteristics or trait.
