Answer:
Rocks which were underwater long time ago.
Explanation:
If we were hunting for trilobites in Canada, we look for those types of rocks where once water present on it because trilobites are the organisms which lived in the marine ecosystem so if they are present in marine so we have to look those rocks which were underwater millions of years ago. Trilobites are the extinct marine arthropods that were present around 521 million years ago.
Tobacco smoke contains dozens of carcinogen
Answer: False
Explanation:
DNA sequences can be similar for organisms that are related to each other but through various steps of meiosis like crossing over and law of independent assortment we can get genetic variations that lead to slight differences. We can also get differences in DNA sequences due to mutations.
Answer:
invasive species are a kind of living organism like a plant, insect, fish, fungus, bacteria, or an organism's seeds or eggs. They can harm the environment, economy, or even human health.
Explanation:
Answer:
In 1831, Darwin embarked on a voyage aboard a ship of the British Royal Navy, the HMS Beagle, employed as a naturalist. ... Darwin's analysis of the plants and animals he gathered led him to question how species form and change over time. This work convinced him of the insight that he is most famous for—natural selection
Explanation:
