When we talk about meiosis I and II we talk about gametes formation.
The objective is to create cells with half DNA charge, called haploids.
At the meiosis I, in prophase I, crossing over happens and anaphase separated homologous chromosomes.
In the end, you still have cells with all DNA charges (2n).
To start meiosis II cells does not duplicate its DNA. When anaphase II happens sister chromatids split, and you end with half DNA charge cells. Haploids or (n).
<h3><u>Answer;</u></h3>
A). Organic compounds would not be available for use by autotrophs.
<h3><u>Explanation;</u></h3>
- The stability of an ecosystem depends on the actions of the decomposers.
- Therefore, if there were no decomposers in an ecosystem then, wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients.
- The carbon and nitrogen necessary to build organic compounds, and then cells, allowing an organism to grow, would be insufficient. Other nutrients necessary for an organism to function properly would also not be sufficient.
Answer:
It shows their evolutionary history and their possible common ancestor.
Explanation:
Similarity of early embryos of different species is a phenomenon observed by many scientist such as Karl von Baer, Charles Darwin and Ernst Haeckel.
Karl von Baer even formulated the law of embryonic development. He explained that there is a certain embryonic form, basic form, which is similar in different species. After this stage (basic form) each species develops independent-there is a branching pattern of further development.
So, according to von Baer development goes " from the most general forms the less general".
Answer:
Analyzing Scientific Data
Science is all about collecting data. If we look at the definition of science, we can say that science is the study of the natural world through systematic observation and experiment. That observation and experiment is where you collect the data.
Explanation:
