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The statement "<span>Forensic scientists rarely have to positively identify a specific drug since they only need to prove the general category of a drug for court cases." is true. </span>
Answer and Explanation:
The Cretaceous–Paleogene extinction, which occurred around 66 million years ago, is defined as a mass extinction that wiped out around three-quarters of species on Earth.
Among the organisms that disappeared during this event, we find mammals, birds, fish, sharks, pterosaurs, birds, reptiles, insects, and some plant species.
This event is marked by the presence of a sediment layer known as the K-Ph boundary which showed important levels of iridium, an element that is abundant in craters. Therefore, after its discovery, scientists hypothesize this extinction occurred due to the impact of the giant Chicxulub crater which changed the conditions of the atmosphere.
When you think about the main purpose of mitochondira (to produce energy; an easy idea how to remember the function of mitochondria in our bodies is to imagine them as energy factories or power plants) it becomes easy to understand why.
Animals (including us) move a lot more compared to plants. For movement you need energy and energy needs to be produced in our bodies in order for us to be able to move. Therefore, we have mitochondria that are bigger. Not only that, animal cells usually also have more mitochondria. All of this is probably done to keep up with the increased energy demands that moving organisms have.
The answer is; providing one-on-one supervision during meals and for one hour afterwards.
<em>Hope this helped! :)</em>
Answer:
B. Members of Plantae and some members of Protista are autotrophs.
Explanation:
All the plants and some protists like euglena are autotrophs i. e. make their own food with the help of chloroplast in the process of photosynthesis. All members of kingdom Plantae cannot move from one place to another like animals. Protists are the organisms which is made of one cell and they have the characteristics of fungi, plants and animals.
