The first known bird fossil date to the mesozoic era of time.
Explanation:
- The first known bird fossil is Archaeopteryx.
- Archaeopteryx were not exactly like modern birds and are called dinosaur like birds..
- Carbon dating suggest that these birds evolved during the jurassic period of mesozoic era.
- These are considered as the only birds of that era.
- Ancestors of modern birds began to evolve during cretaceous period and kept on evolving through Cenozoic era.
It causes soil pore spaces to become smaller, and it reduces water infiltration rate into soil, and decreases the rate that water will penetrate into the soil root zone and subsoil.
1. is 0% because the dominant trait takes over
2. is 25% chance
<span>The correct answer should be C. oil spills. If you take oil into the United States then there's bound to eventually be an oil spill. Habitat loss can occur when you deforest lumber in order to give it to the US because they pay you for it so the animals in your forest lose homes. Air pollution is because of all the fuel used to transport things into the US.</span>
Answer:
It will swell
Explanation:
Since it is only permeable to water, the cell will try and reach homeostasis with it surroundings (it will take in water to decrease the concentration of salt in the cell).
