Answer:
A lake I would assume because lakes have a depth to where you cannot see so it’s deep and dark down in lakes!
Answer:a. The normal gene function is required for the viability of the zebrafish.
Explanation:
It is mentioned that if the gene responsible for forming stripes on its body is inactivated by mutation then fish without stripes will produced.
This will lead to the absence of phenotypic character that is strips on the fish. The other genes which are responsible for the survival of the fish will function normally thus this will be untrue that normal functioning of the gene required for expressing horizontal strips is also necessary for the survival and viability of the zebrafish.
A/an <u>seminal vesicle</u> is a fluid-filled sac in the scrotum along the spermatic cord leading from the testicles.
- The male reproductive system includes a pair of glands called seminal vesicles that are located on the back of the bladder base in men.
- Their major job is to create the semen-making fluid that is expelled during ejaculation.
- The majority of the fluid that makes up semen is produced and stored by two tiny glands called seminal vesicles.
- The seminal vesicles' fluid is sent into the ejaculatory duct during ejaculation, where it might mingle with sperm and other reproductive fluids.
- The androgen-dependent seminal vesicle glands release a sizeable portion of the fluid that eventually turns into semen (seminal fluid).
- The majority of species' contributions to semen volume come from seminal vesicle glands.
learn more about seminal vesicles here: brainly.com/question/11223304
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