Answer:
d.They are still very common ,but threatened with increasing harvesting for timber.
Explanation:
Brazil's Araucaria trees:
These trees are very soft and can be cut so easily.Brazilian pines is also know as Araucaria tree.
Before 1950's or 60's the number of trees were more but now due to harvesting the number of trees become less.The these trees are used for timber and for glue also.
In the present time the availability of these trees threatened with increasing harvesting for timber.
So the our option d is correct.
<span>Pleural sac is a two
layered membrane formed when a serous membrane known as pleura folds back onto
itself. Thus, the pleura invest the lungs and line the walls of the thoracic
cavity. However, the potential volume of the thoracic cavity increases during
inhalation.</span>
Based on the seed experiment in the Poop Lab, the seeds that are expected to sprout are the seed in the elephant poop while the seeds in the soil are not expected to sprout.
<h3>What was the Poop Lab?</h3>
The main idea of the Poop Lab is to compare the growth of seeds that have gone through the digestive system of an animal, in this case, an elephant, to a seed that has not.
The seed that had gone through the digestive system was observed to have sprouted but the seeds in the soil did not. This experiment demonstrates the role animals such as elephants play in shaping the ecosystem through seed dispersal.
The seed that passed through the digestive system of the element and then passed out into the poop received enough nutrients for growth.
However, the seed in the soil does not receive adequate nutrients.
Learn more about seed growth at: brainly.com/question/29316564
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Answer:
I am not sure but I think the answer is of first one.
