The correct answer is option B. The scientists were studying if the mud snails can reproduce both sexually and asexually. The characteristics in the study included parameters such as the mating season, number of offspring, effect of environmental stress conditions and lack of mates. Out of all the parameters being studied can affect asexual reproduction in the mud snail but lack or presence of mates is a parameter required to be studied to determine the mode of reproduction i.e. sexual or asexual because need for mates or mate dependent reproduction occurs in case of sexual reproduction.
the nitrogen cycle involves decompisition. and the waste from the animals is then turned into nitrogen.
The left ventricle is responsible for pumping oxygenated blood throughout the entire body, which requires a lot of work and pressure, hence why it is super thick.
Answer:
Carbon Dioxide
Explanation:
google plus proof below I guess
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I filled in each labeled square for you and wrote each percentage to the right of each square with the genotype of the last two.
