Answer:
Virus
Explanation:
A Virus can cause infections and disease due to the Virus needing a host to reproduce.
The changes in foot structure in a bird population over. Evolution leads to less complex organisms. And also the lock-and-key model.
From the given options, the following sidovery involving DNA happened first: C) Griffith learned that a chemical changed harmless cells into harmful cells.
The British medical officer named Frederick Griffith discovered DNA in 1928 while conducting experiments using Streptococcus pneumoniae bacteria and mice.
<span>He concluded that the living R bacteria had been transformed into pathogenic S bacteria by an unknown, heritable substance from the dead S cells that allowed the R cells to make capsules.</span>
Frogs will start devouring fish if there are too many of them in the pond and not enough food sources for them.
<h3>
What is pond ecosystem?</h3>
A freshwater ecosystem called a pond is made up of groups of species that depend on one another and the surrounding water environment for nutrients and survival.
Garden can take on a new dimension with the addition of a pond or a container planted with aquatic plants like water lilies. Additionally, it might give your property a completely new depth by bringing in a variety of creatures, especially frogs.
For more information regarding pond ecosystem, visit:
brainly.com/question/13155624
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I belive the correct answer is D
Hope this helps :)
