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
Svetach [21]
3 years ago
12

Which of the following typical adaptations of marine animals is not found in sea otters?

Biology
2 answers:
grandymaker [24]3 years ago
8 0
Unlike fully aquatic marine mammals, or Cetacea, sea otters are bi-terrestrial and are capable of living on both land and in the water. Like all marine mammals, otters have webbing between their toes with acts like a flipper as well as a streamlined body to enable them to move quickly through the water. The only adaption that is not applicable to otters is <span>d. breathing apparatus on the top of the head.</span> Only marine mammals such as whales, dolphins, and porpoi have a blow hole on their dorsal side of their body. Another difference from Cetacea is an otter's thick fur. I believe the ratio for pelt density is one million lock of fur per square inch. Otter fur is also much longer compared to that of other marine mammals like pennipeds. Their long fur makes otters especially susceptible to oil and oilspills resulting from underwater oil mining accidents.
Igoryamba3 years ago
5 0

Answer:

D. breathing apparatus on the top of the head

Explanation:

edge 2020

You might be interested in
Which of the following enzymes digests carbohydrates?
garri49 [273]
Amylase maltase, and lactase in the mouth digest carbohydrates. Trypsin and lipase in the stomach digest protein.
8 0
3 years ago
1 Describe 2 ways that carbon is removed<br> from the atmosphere.
Alik [6]

Carbon dioxide is removed from the atmosphere primarily through photosynthesis and enters the terrestrial and oceanic biospheres. Carbon dioxide also dissolves directly from the atmosphere into bodies of water (ocean, lakes, etc.), as well as dissolving in precipitation as raindrops fall through the atmosphere.

3 0
4 years ago
Forty mothers have taken the suspected drug during their pregnancies. of these mothers, 35 have delivered malformed infants. in
olasank [31]

The complete question is :

As an epidemiologist you are going to investigate the effect of a drug suspected of causing malformations in newborn infants when the drug in question is taken by pregnant women during the course of their pregnancies. As your sample you will use the next 200 single births occurring in a given hospital. For each birth a medication history will be taken from the new mother and from her doctor; in addition, you will review medical records to verify use of the drug. [N.B.: These mothers are considered to have been followed prospectively during the entire course of their pregnancies, because a complete and accurate record of drug use was maintained during pregnancy.] The resultant data are: Forty mothers have taken the suspected drug during their pregnancies. Of these mothers, 35 have delivered malformed infants. In addition, 10 other infants are born with malfunctions. What is the relative risk between exposure to the drug and malformations?

Answer:

14

Explanation:

  • The relative risk is a measure that is used to calculate or compare the likelihood or the chance that an event would occur while comparing the two groups.
  • To calculate the relative risk, the probability of an event occurring in one group is compared with the probability of the event occurring in another group and this is done by dividing the probability of one group by another.
  • The value of relative risk is always either zero or greater than zero but it cannot be negative.
  • The value 1 indicates neutrality.
  • The probability of an event = no. of favorable outcomes/ total no. of outcomes
  • For the given question, 35 mothers out of 40 delivered infants that were malformed, so the probability of delivering malformed infants is 35/40.
  • Out of the 200 births, 40 have occurred so total births left is 200 - 40 = 160
  • Therefore, the probability of the second event is 10/160.
  • Therefore relative risk is = (35/40)/(10/160) = (0.875/0.062) = 14
6 0
3 years ago
Answer this for 10 points!!
alisha [4.7K]

Answer:

25%

78%

I don't know if this is right

Explanation:

Serch it up

5 0
3 years ago
SOMEONE PLEASE HELP ME!!!! i would appreciate it sooo much. its in the pic below. someone whos good at bio.
Marat540 [252]

Answer:

1024

68

32

Explanation:

7 0
3 years ago
Other questions:
  • Compare and contrast kelp forests and coral reefs
    14·1 answer
  • What is a function of the efferent division of the nervous system?
    10·1 answer
  • Some scientists believe that a change in climate is causing Earth's glaciers to rapidly melt. How will this affect polar bears?
    9·2 answers
  • Ocean currents move warm and cold water around the Earth, affecting Earth's __________.
    5·2 answers
  • The kidneys regulate the levels of many chemicals and ions in the body. Which term best describes the result of this process?
    12·2 answers
  • If your blood sugar level is low from skipping lunch, what reaction (dis- cussed in this exercise) will occur in your liver cell
    9·2 answers
  • I include bases guanine, cytosine, and adenine.<br><br> DNA ONLY <br> RNA ONLY <br> DNA AND RNA
    7·2 answers
  • What describes sand?
    7·2 answers
  • Make each noun plural. Type the whole word in the box following the singular form.
    10·2 answers
  • Over time, the hull of a sunken ship may become colonized by a wide range of marine organisms. What term is used to describe all
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!