1. scientist's can identify genetic disorders or diseases from studying DNA
2. scientists can possibly find cures for these causes by manipulating or experimenting with this DNA
they’re a product of sexual reproduction that are usually located on the lower surface of fern leaves. they’re essential for reproduction , they’re clusters of sporangia which contain the spores in plants like ferns & moss
Answer:
Longest interval during which no tree-cutting sample occurred: 9 years (1203 AD - 1212 AD)
First year in that interval: 1203 AD
Explanation:
Lets complete the question first.
Q) A study uses tree rings to determine the year in which a tree was cut. The data is shown in the leaf and stem diagram in the ATTACHMENT.
The three digits number in the left column represents centuries and decades AD. The numbers on the right represents the years.
For example, consider the first input in the diagram
119 | 5 6
which means it represents 2 samples.
1195 AD, 1196 AD.
The longest interval with no tree-cutting samples is found from 1203 AD to 1212 AD.
Answer:
The total amount of matter on Earth constantly increases.
Explanation:
This is because there are always new things taking birth every second and they have matter in them, so the matter is increasing constantly.
Answer:
The amount of light they receive.
Explanation:
In an experiment, the independent variable is the part of the experiment that the experimenter changes. In this experiment, the only thing that's different for each of the plants is the amount of light they receive. Everything else is the same - the same amount of soil, same amount of water, same pots, and so on.
