Answer:
The answer is <u>C.) 1953, Watson and Crick</u>. In <u><em>1953</em></u>, with the help of Rosalind Franklin, <u><em>Watson and Crick</em></u> discovered the structure of DNA.
Explanation:
To be specific, James Watson and Francis Crick were the first people to make a 3-D model of DNA. Although it may not seem much today, as our technology has advanced so much ever since, it was big time in 1953. They discovered that DNA was shaped like a double-helix, or twisting ladder. Pretty intriguing if you ask me!
Answer:
d. ultraviolet
the answer is ultraviolet
Answer:
Chambers
Explanation:
Oxygen-rich blood travels from the lungs to the left atrium, then on to the left ventricle, which pumps it to the rest of the body. The heart pumps blood to the lungs and to all the body's tissues through a sequence of highly organized contractions of the four chambers.
Let say, polled (without horn) parent cattle is dominant (PP) and parent horned cattle is recessive (pp). They cross bred which produced all polled calf F1 generation. F1 will be hybrid for trait horn (Pp). On Selfing of F1 progeny ( Pp x Pp) will give 1 homozygous polled (PP) cattle, 2 heterozygous polled (Pp) cattle and 1 cattle with horn recessive (pp) in F2 generation.
Answer:
3) offspring with more variety
Explanation:
The reason #3 is the answer to #1 is because variety means change or difference in something and the change was in the environment. Asexual species reproduce with no partner, just their genetics, so there isn't much of a change. Species that reproduce sexually have a higher advantage of reproducing offspring with more variety because there was a "change" in the environment. If that change affected one of the two mating species it could cause variety within the environment.
