Answer:
B
Explanation:
The Ames test is a bacteriological technique commonly used to determine if a particular chemical or substance can cause mutations. To achieve this, researchers use bacteria (commonly <em>Salmonella typhimurium</em>) as this bacteria strain is unable to grow in a medium that does not contain histidine (a very important amino acid in the biosynthesis of proteins). If the studied substance is able to cause mutations, bacteria will mutate, and they will be able to grow on that particular media even if they don’t have histidine for their metabolism. Therefore, if there are colonies growing, the chemical being tested is mutagenic.
I hope this clarify your inquiry.
The eocene organisms had clear primate characteristics like a postorbital bar, opposable thumbs, nails, and a large brain are Omomydids and Adapids.
The adapids were lemur like primates and the omomydids which includes the probable ancestors of apes and monkeys and Tarsiidae (tarsiers). They are organisms of the eocene epoch present about 34 to 55 million years ago.
They are considered to be the early primates. Their primates characteristics are forward oriented eyes, postorbital bar, opposable thumbs, nails, large brain and adaptation to live in the tree.
To learn more about primate characteristics here
brainly.com/question/28024455
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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.
ATACT
A goes with T
C goes with G
Precipitation and Wind direction :)
