Question

What was Darwin's Dilemma? A. The Cambrian Explosion B. The fact that complex life appeared in...

What was Darwin's Dilemma?

A. The Cambrian Explosion B. The fact that complex life appeared in the fossil record abruptly C. The fact that animals seemed to have no ancestors D. All of the above E. None of the above

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Ans: All of the above

Explanation: Darwin's Dilemma was the mystery that bothers Charles darwin (who is known as the father of evolution) about his evolution theory. The Cambrian period is the marking point in the history of life on the planet where fossil record was found of major animals. The event shows the diversity forms over a very short period of time and was called a Cambrian explosion. It was assumed that before 10 million years back first simple organism came. These single-celled organisms transform into bacteria and other kinfolks. After the exposure of the Cambrian explosion, Charles darwin was very concerned about this because he was worried about his theory of evolution may cripple by it. Moreover, there were no sign of the presence of ancestors. Darwin in his theory stated that evolution is a slow process and takes a long time to occur. however, the Cambrian explosion shows a quick evolution of life and the fossil appeared abruptly. This becomes a darwin's dilemma.

Add a comment
Know the answer?
Add Answer to:
What was Darwin's Dilemma? A. The Cambrian Explosion B. The fact that complex life appeared in...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • Match 1. Cenozoic era 2. Mesozoic era A) Cambrian explosion B) Mammals appeared on the earth....

    Match 1. Cenozoic era 2. Mesozoic era A) Cambrian explosion B) Mammals appeared on the earth. C) Prokaryotes appeared on the earth. D) Animals appeared on the earth. 3. Paleozoic era 4. Proterozoic eon 5. Archaean eon E) Human appeared on the earth.

  • QUESTION 1 The “Cambrian Explosion” describes the relatively sudden appearance of __________ in the fossil record...

    QUESTION 1 The “Cambrian Explosion” describes the relatively sudden appearance of __________ in the fossil record in the Cambrian. Metazoans Eukaryotes Algae Cephalopods Chocolate 0.5 points    QUESTION 2 Poriferans lack: Extracellular matrix Organs Choanocytes Nuclei 0.5 points    QUESTION 3 Which of the following has no terrestrial species? Brachiopoda Nematoda Mollusca Arthropoda 0.5 points    QUESTION 4 The metazoan phylum with the greatest diversity (i.e., number of species) today is: Arthropoda. Annelida. Cnidaria. Mollusca. 0.5 points    QUESTION 5...

  • 1) Darwin's four postulates include (circle all that apply)

    1) Darwin's four postulates include (circle all that apply)  a) Reproductive success and survival are NOT predictable b) There is variation in a population c) Some trait differences in a population are heritable and are passed from generation to generation d) Individuals with certain traits are more likely to survive and reproduce e) All of the above are Darwin's postulates. 2) For each of the following, indicate whether the statement is True or False (circle correct choice) a) An adaptation is a behavior...

  • help 79. If the the non-template strand of a gene is 5' ATGCGT 3', the mRNA...

    help 79. If the the non-template strand of a gene is 5' ATGCGT 3', the mRNA would be (all are listed 5' to 3') a. UACGCA. b. ATGCGT. c. AUGCGU. d. UAGCGU. e. none of these 80. Which of the following scientific observations supports Darwin's theory of evolution by natural selection using an approach completely unavailable in Darwin's time (thus representing independent confirmation of his ideas)? a. analogous stuctures in different species. b. transitional species. c. DNA sequence homology. d....

  • Which example illustrates the difference between Lamarck's vs. Darwin's theories of how new species come from...

    Which example illustrates the difference between Lamarck's vs. Darwin's theories of how new species come from existing species. A. Lamarck may have stated that with the rapid distance between pieces of ice in the arctic, polar bears would naturally be able to swim further than their parents would have, whereas Darwin would have said that the polar bears who could swim far enough would survive, those who could not would die. B. Lamarck may have stated that with the need...

  • In plants, germ cells are derived from tissues late in plant growth. How does this fact...

    In plants, germ cells are derived from tissues late in plant growth. How does this fact relate to inheritance patterns observed in plants versus animals? a. This explains the presence of Barr bodies found in the cells of animals but not in plants. b. This explains why some genes in both the egg and sperm of animals contain special methylation patterns, whereas in plants all gametes have the same methylation patterning. c. This explains why epigenetic modifications are heritable in...

  • 54) Which of the following statements is FALSE? a. Microbial cells exist as single cells. b....

    54) Which of the following statements is FALSE? a. Microbial cells exist as single cells. b. Microbial cells carry out their life processes of growth independently. c. Microbial cells include both bacteria and viruses. d. Microbial cells exclude the cells of plants and animals. ------------------ 55. The largest mass of living material on Earth comes from a. microorganisms. b. plants. c. animals. d. plants and animals together. ----------------- 56. In what/which domain(s) of life is/are microorganisms represented? a. Archaea b....

  • 3. According to the molecular sequence-based phylogenetic tree of animal life, which of the following is...

    3. According to the molecular sequence-based phylogenetic tree of animal life, which of the following is correct? a. Eucolomate animals evolved from pseudocoelomate animals, which in turn evolved from acoelomate animals. b. Segmentation probably evolved in only one clade, which includes more than one phylum showing segmentation. C. Segmentation evolved in some protostomes and some deuterostomes. d. Deuterostomes are more closely related to eucoelomate protostomes than to other protostomes that are pseudocoelomate or acoelomate. e. None of the above is...

  • 1.Choose the FALSE statement from the list below. A. all animals are multicellular B. all animals...

    1.Choose the FALSE statement from the list below. A. all animals are multicellular B. all animals are heterotrophic C. all animals are motile for some part of their life cycle D. all animals are eukaryotic E. none of the above (all of these statements are true) 2.With the exception of sponges, all animals have a body plan that is: A. large B. symmetrical C. radial D. segmented E. columnar 3.Choose the response that does NOT correctly match the tissue type...

  • 18) The premium on bonds payable: a) represents the increase in interest expense over the life of the bonds b) represents a decrease in interest expense over the life of the bonds c) decreases int...

    18) The premium on bonds payable: a) represents the increase in interest expense over the life of the bonds b) represents a decrease in interest expense over the life of the bonds c) decreases interest expense to the effective interest rate d) both (b) and (c) are correct e) none of the above. 19) Interest received on investment is classified on Statement of Cash Flows as: a. Financing activity b Operating activity c investing activity d. Non-cash investing and Financing...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT