<h2>Answer:</h2>
Carbon
<h2>Explanation:</h2>
Carbon is essential part of living organisms. Scientist use carbon isotopes for dating purposes but the problem with carbon isotopes is also limited as Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that
In task 2 I only did part D
answer:
Two independent sets of observations on sand activities in relation to the flowing river are recorded as the water passes through the meandering river. Stream abrasion can affect the morphology of a stream or river dramatically over time. Because the water can start erosion with anything near it, erosion can impact human communities near rivers.
MAKE SURE YOU SAY THAT YOU DID THE ALTERNATIVE ACTIVITY!!!!
A.) Veins in the pulmonary circuit carry oxygen-rich blood
red blood cells are used to circulate oxygen through out the body, thus it is true.
Galactosemia is often times a heretic genetic disorder where a simple sugar called galactose becomes a poisonous substance its commonly found in lactose which is milk sugar so if your aiming to help a friend id say the best way is to
1. make sure your friend stays away from milk
2. treat your friend if he/she ingests galactose
3. provide replacements for milk and other things with glacatose in it
4. checkup on your friend every day to make sure his/her sugar levels are normal
