1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
umka21 [38]
4 years ago
14

Describe the evolution of modern whales and dolphins using the fossil evidence

Biology
1 answer:
HACTEHA [7]4 years ago
4 0
Whales are related back to a hairy, 4-legged land mammal that eventually led to the formation of flippers without phalanges, a blow hole that became more dorsal, and other defining features. All of this has been backed by fossil evidence, especially that found within a certain desert region (can’t remember the name) that has a vast amount of whale fossils from many different time periods
You might be interested in
Complementary pairs to A-C-G-T-T-A-C-G-A- in dna
Illusion [34]
The answer is T-G-C-A-A-T-G-C-T
5 0
4 years ago
You are conducting a case control study to determine if an association exists between melanoma and indoor tanning. From a statew
Aleksandr-060686 [28]

Answer:

a. Odds ratio = 1.58

b.  Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning

Explanation:

For case  study                                                  

Let 'a'  represent the total population of people with melanomia = 696                                                      

Let 'b' represent the total number of people with melanomia exposed to indoor tanning  =  1107 – 696 = 411 people

For  control study

Let 'c' represent the total population = 1500

Let 'd' represent the total number of people not exposed to indoor tanning = 1500 - (0.428 * 1500)

                                                          =  1500 - 723

Total number of people not exposed to indoor tanning   = 777 people

                                                       

a. Odds ratio = (a/b) / (d/c) = (696/411) / (777/723)

                                                = 1.69 / 1.07 = 1.58

b. Inasmuch the odds ratio is greater than 1, this means that higher odds of melanoma exist in people exposed to indoor tanning, than in those not exposed to indoor tanning.

7 0
3 years ago
The combination of mitotic cyclin with CDK signals the __________.
Masteriza [31]

Answer:

The correct answer is beginning of cell mitosis.

Explanation:

Cyclins are cell cycle regulatory protein which regulates the catalytic activity of cyclin dependent protein kinase or CDK.From the name cyclin dependent protein kinase it can be concluded that CDK helps in the phosphorylation of key proteins of cell cycle.

  The combination of cyclin with CDK helps in the progression of cell from one phase to another.

  Such as cyclin A CDK 2 helps also called G1 cyclin CDK helps in progression of cell from G1 to S phase whereas Cyclin B CDK 1 or M cyclin CDK helps in beginning of mitosis phase or M phase of the regulated cell.

8 0
3 years ago
Which term describes baody parts of different organisms that are similar in form
uranmaximum [27]

Homologous structures (Not to be confused with Homologous pairs)

7 0
3 years ago
WILL BE MARKED BRAINLIEST
cestrela7 [59]
The answer is C. Ring
5 0
4 years ago
Read 2 more answers
Other questions:
  • Identify the organs each body cavity contains
    7·1 answer
  • 4. Determine What captures<br> the atmospheric nitrogen?
    6·1 answer
  • TRUE OR FALSE the oxygen present in the modern atmosphere is very reactive and would tend to destroy any new kinds of organic mo
    14·1 answer
  • A patient is brought to the emergency department. he is restless, has dilated pupils, is sweating, has a runny nose and tearing
    11·1 answer
  • What device can be used to make measurements globally?
    10·2 answers
  • Compare bacteria to other single-celled organisms. How do they differ? How do they compare to viruses?
    6·1 answer
  • Which of the following situations or phrases most accurately describes the citric acid cycle?
    11·1 answer
  • What are science experimental skills
    10·1 answer
  • Glucose is an example of (choose Carbs or Lipids).<br> A. Carbs<br> B. Lipids
    12·2 answers
  • Mangrove have two types of specialized root systems. Please select the best answer from the choices provided T F.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!