Evidence unearthed by scientists supports the conclusion that about 65 million years ago a large object from space crashed into an area north of what is now the Yucatan Peninsula of Mexico. The impact threw huge amounts of
dust into the atmosphere which spread across Earth's
sky, blocking the sunlight. At about the same time
dinosaurs, and many other forms of life in all regions of Earth, became extinct.
Describe how this event could have caused herbivorous and carnivorous organisms to become extinct.
Answers: 1
Biology, 22.06.2019 03:40
20. in humans, freckles are dominant to no freckles. trey has no freckles and his wife anna grace has freckles, but her dad doesn't. they want to know what percentage of their kids would look like trey. show a punnett square to support your answer.
Answers: 1
Biology, 22.06.2019 04:00
Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them
Answers: 1
Biology, 22.06.2019 04:40
The negative impacts of nonnative species generally outweigh the positive impacts
Answers: 1
Evidence unearthed by scientists supports the conclusion that about 65 million years ago a large obj...
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