D. . They have contributed the same type of allele <span>for this gene.</span>
Answer: D. Seminiferous tubules → Epididymis → Vas deferens → Ejaculatory duct → Urethra
Explanation:
In humans<u> sperms are produced</u> in the seminiferous tubules of the testis; and stored momentarily in the epididymis . They swim through the (paired )Vas deferens to the single ejaculatory duct, to exist through the urethra that runs the penis length. The urethra is also the passage for urine.
Answer:
1: Protecting endangered species
2: Cleaning beaches
3: Killing invasive species
Sperm cell (gamete) in humans = 23
Zygote in monkeys = 48
Zygote in humans = 46
Egg cell (gamete) in monkeys = 24
