Author Question: What is the best alternative to the meteorite impact hypothesis for the Cretaceous mass extinction? ... (Read 136 times)

gonzo233

  • Hero Member
  • *****
  • Posts: 557
What is the best alternative to the meteorite impact hypothesis for the Cretaceous mass extinction? What will be an ideal response?

Question 2

How distinct were Mesozoic mammals from their reptile neighbors? What will be an ideal response?



Sammyo

  • Sr. Member
  • ****
  • Posts: 329
Answer to Question 1

Vast outpourings of lava in India had detrimental impacts on the climate.

Answer to Question 2

Most Mesozoic mammals had both mammalian and reptilian features. For example, while the
mammalian lower jaw has one bone, reptiles and the early mammals had multiple bones in the lower
jaw, but they also had teeth and a jaw-skull joint typical of mammals.




Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

For a complete list of videos, visit our video library