Answer:
epididymis
ductus deferens
ampulla of ductus deferens
seminal gland
ejaculatory duct
urethra
Explanation:
Epididymis is a tube that connects the back side of the testicles to the vas deferens (ductus deferens). The vas deferens is the connecting link between epididymis and urinary tract/urethra and is responsible for transporting sperm to the urethra. Seminal vesicles are small glands that lie above the prostate gland and make up more than 50% of the total semen. Seminal vesicles are connected to the vas deferens through ejaculatory duct. This duct empties sperm and semen into the urethra
Hence, the correct order is
epididymis
ductus deferens
ampulla of ductus deferens
seminal gland
ejaculatory duct
urethra
Answer:
Hawks
Explanation:
As you go up in the trophic levels, energy is converted into heat energy. I recommend that you read about the 10% rule
C. nucleic acids (consisting of genes which encode for specific proteins to be synthetized)
Answer: Genetic Variation
Explanation: It is the presence of differences in sequences of genes between individual organisms of a species.
Stem cells arise from the inner mass of the cell
Signalling factors trigger differentiation in stem cells
Genes that lead to the production of undifferentiated blood cells are activated
Signalling factors cause undifferentiated blood cells to produce red blood cells
Explanation:
Red blood cells are formed in the bone marrow. The precursor to the RBC is stem cell which is undifferentiated and pluripotent. The stem cell gets differentiated to form immature RBCs. Immature RBC then gets divided and becomes mature. Stem cell giving rise to RBC is called Haemoctytoblast. The process of erythropoiesis takes 2 days to form new red blood cells
