Answer:
The correct answer is option (2) "increased exposure to ultraviolet light".
Explanation:
The ozone shield or the ozone layer is a region of the atmosphere comprised of high concentrations of ozone that absorbs most of the Sun's ultraviolet radiation. Therefore, damage to the ozone shield will cause increased exposure to ultraviolet light over the United States. This could cause harmful consequences such as an increase of cases of skin cancer, sunburn and cataracts.
C thymine, guanine, adenine, and cytosine
D thymine, guanine, adenine, and uracil
Answer:
C
Explanation:
It has 2 pairs
Adenine and Thymine
Cytosine - Guanine
hope it helps
Answer:
C. thymine, guanine, adenine, and cytosine
The answer is C, I just had this question-
C. To move oxygen-poor blood through the lungs and to move oxygen-rich blood to the rest of the body
moss → pea plant → firefly
firefly → pea plant → moss
pea plant → firefly → moss
Answer:
The correct answer is firefly → pea plant → moss.
Explanation:
Fireflies average life span is about 2 months for adults. Pea plants are annual plants and life span is of one year, it takes place from winter to the end of summer.
Moss life span is longer than pea plants and fireflies. Their life span depends on their species which can range from two to ten years. Generally, it considered as 10 years.
Thus, the correct answer is firefly → pea plant → moss.
Answer:
c. Firefly, peaplant, moss.
Explanation:
Fireflies live for only a couple weeks. Pea plants live for about 100 days. Moss lives for about 4 months.
(B) 142.
(C) 141.
(D) 429.
(E) 428.
An mRNA of 429 nucleotides will form a polypeptide chain with 143 amino acids, assuming each codon (set of 3 nucleotides) corresponds to an amino acid and the stop codon is not counted.
For the synthesis of protein in a process known as translation, each triplet set of nucleotides in the mRNA, called a codon, identifies a specific amino acid. Hence, an mRNA of 429 nucleotides would be segmented into a set of 3 to form the different codons for the amino acids. Since 429 divided by 3 is 143, the polypeptide chain resulting from this mRNA would have 143 amino acids.
In this case, the correct answer would be (A) 143. This calculation does not take into account the stop codon that does not correspond to an amino acid, but usually examination questions ignore the effect of the stop codon. To provide the most accurate answer, we would need to know if the mRNA sequence includes the stop codon or not.
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dolphins
fish
baleen whales
clams
sponges