Answer:
After an organism is buried, minerals carried by water such as silica, calcite or pyrite replace the organic material in the fossil. Some common examples are most dinosaur bones, petrified wood, and many trilobite fossils.
The answer is the recessive allele
Answer:
Brain structures called the hypothalamus and pituitary gland control the menstrual cycle.
Explanation:
Hi there!
We can go through the overall function of all three of these:
mRNA: transcribed from the DNA, has the protein's composition written in it, and brings that to a ribosome where the protein will be made
tRNA: looks at the codons (set of 3 nucleotides) on the mRNA and brings amino acids which match up to that codon
rRNA: significant part of the composition of ribosomes
Now, looking at these, and back to the answer choices, we can already see that a, b, and c are correct. d, on the other hand, is incorrect.
Hope this helps! Feel free to let me know if you have any questions about this specific problem.
