Asexual: Offspring arise from single organism
Sexual: Genetic information from two organisms (male and female), where one produces a motile gamete (male) that travels to fuse with a larger stationary gamete produced by other (female).
Internal Fertilization: Union of an egg cell with a sperm during sexual reproduction inside the body of a parent.
External Fertilization: The sperm cell reunites with the egg cell in the open, rather than inside the body of a parent.
:) I'm sure you can figure it out from the information I stated above
Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS). The sympathetic nervous system (SNS) releases the hormones (catecholamines - epinephrine and norepinephrine) to accelerate the heart rate.
The professional that most likely will be called in to help seismologist.
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Explanation:</u></h3>
When an underwater earthquake has just been recorded in the middle of the Pacific Ocean, the seismologists will be called to determine if the effects of this earthquake and whether or not it will cause tsunamis off the coast of Hawaii.
Seismology is the study of earthquakes, the escalation of waves and the effects they might have. A seismologist is a scientist who is concerned with these studies. They make use of seismographs and other relevant tools to gather essential data which helps in reading the planetary movements and understanding them better. The study does not always predict an earthquake but it helps in predicting the possibility of tsunamis. Seismology enabled the development of tsunami warning systems.
Answer:
I believe it is : water and nitrogen
Explanation:
Answer:
The correct answer is b. He determined that DNA contains four nitrogenous bases.
Explanation:
Levene was an American biochemist who studied the structure of DNA in the early 1900s and in 1920 he found that DNA consists of four nitrogenous bases that are Adenine, Guanine, Thymine, Cytosine.
He also found deoxyribose sugar and phosphate group and said that nucleotide is the basic unit of DNA which contains a ribose sugar with attached nitrogenous base and phosphate group.
He also concludes that an equal amount of adenine, guanine, thymine, and cytosine makes the DNA which is now known as tetranucleotide hypothesis. So the correct answer is b. He determined that DNA contains four nitrogenous bases.