Answer: True
A point source pollution is a single identifiable source of pollution of air, water ,noise and soil. The pollutants being responsible for pollution can be easily traced back to their origin. The pipe, drain, well, container and ditch can allow the tracing back of the source of pollution coming from the sewage drain, household waste, industrial waste and agricultural waste.
Therefore, Point-source pollution comes from a specific location and is easy to trace is true.
The correct option is (D) Nucleotide variability and average heterozygosity
The higher the proportion of loci that are "fixed" in a population, the lower are that population's nucleotide variability and average heterozygosity.
<h3>
What does it indicate when a gene in a population is fixed?</h3>
- In population genetics, fixation is the transformation of a gene pool from one in which at least two alleles of a certain gene exist in a given population to one in which only one allele persists.
- Any allele must eventually be lost entirely from the population or fixed (permanently established at 100% frequency in the population) in the absence of mutation or the heterozygote advantage.
- Selection coefficients and random variations in allelic proportions determine whether a gene will ultimately be lost or fixed. Fixation may relate to a specific nucleotide location in the DNA chain or a gene in general (locus).
Learn more about the Nucleotide variability with the help of the given link:
brainly.com/question/9363472
#SPJ4
Hay dos especies principales que causan enfermedades: Cryptococcus neoformans y C. gattii. Estos hongos rara vez causan infecciones en personas sanas, pero pueden ser muy graves para personas con sistemas inmunitarios comprometidos, como las que tienen VIH / SIDA. La infección generalmente ocurre cuando alguien inhala el hongo
High levels of cortisol would normally provide negative feedback to the D)the anterior pituitary and the hypothalamus.
ACTH secretion stimulates the discharge of glucocorticoids (cortisol), mineralocorticoids (aldosterone), and androgen from the adrenal cortex.
Corticotropin-liberating hormone (CRH) is launched from the hypothalamus, which stimulates the anterior pituitary to release adrenocorticotropic hormone (ACTH). ACTH then acts on its target organ, the adrenal cortex.
Cortisol increases blood sugar by way of releasing stored glucose, at the same time as insulin lowers blood sugar. Having chronically high cortisol stages can result in continual high blood sugar (hyperglycemia). this can purpose type 2 diabetes.
Learn more about the hypothalamus here brainly.com/question/1022285
#SPJ4
Sperm cells are stored an matured in the Epididymis
