Author Question: Archaeopteryx fossils are those of a prehistoric a. bird. b. crinoid. c. trilobite. d. ground ... (Read 41 times)

appyboo

  • Hero Member
  • *****
  • Posts: 527
Archaeopteryx fossils are those of a prehistoric
 a. bird.
  b. crinoid.
  c. trilobite.
  d. ground sloth.

Question 2

The K-T impact is thought to have occurred at what site?
 a. Iridium
  b. Chicxulub
  c. Gubbio
  d. Alvarez



Jane

  • Sr. Member
  • ****
  • Posts: 309
Answer to Question 1

a

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

About 3.2 billion people, nearly half the world population, are at risk for malaria. In 2015, there are about 214 million malaria cases and an estimated 438,000 malaria deaths.

Did you know?

Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

For a complete list of videos, visit our video library