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
elena-14-01-66 [18.8K]
3 years ago
10

Over many generations, the fur on polar bears mutated white to help the bears hide better in the snow.

Biology
1 answer:
gizmo_the_mogwai [7]3 years ago
8 0
True.
Polar bears evolved from the brown bear. Their fur mutated from dark to adapt to the colder climate and to hide in the snow. Probably, in the past, there were some bears with mutated lighter fur. This trait allowed them to survive so that mutated gene was transmitted to the next generations. Lighter fur allowed them to retain body heat and better to hide during hunting. White bears had a higher fitness than brown bears in the cold climate, so generations later, all polar bears were white.
You might be interested in
which of the following is not an example of symbiosis? A. red blood cells containing malaria B. vines using a tree for support C
Digiron [165]

Answer:

A. red blood cells containing malaria

Explanation:

Also, just as a heads up. I saw the previous person posted a link. Remember not to click any links that lead to domains which are unknown to you. They could hold a virus.

3 0
3 years ago
Read 2 more answers
Name any three features of a good house.
rewona [7]

Answer:

  • The home should have basics like a door and windows
  • The home should be above sea level to stay safe from hurricanes
  • The home should have heating and air conditioning

These are some three things that a good house should have.

Hope this helps!

8 0
3 years ago
) During the germinal period, the fertilized ovum duplicates and forms a blastocyst. This hollow ball of cells ________.
Vedmedyk [2.9K]

Answer:

C - Contains the embryonic disk

Explanation:

After an egg is fertilized, it begins to divide into smaller cells, from the 1 cell stage, to 2, to 4 and so on. Then, on the third day, the cells fall within 16-200 cells and it is then called a <em>morula</em>.

On the fifth day, the morula becomes a ball of calls which is now differentiated into an <em>inner cell mass and a trophectoderm</em>. The inner cell mass becomes the <em>embryo</em> as development goes on and the trophectoderm, becomes the <em>placenta</em>.

As development goes on further, the floor of the amniotic cavity is formed by the embryonic disk, a layer of prismatic cells derived from the inner cell mass.

The embryonic disc develops into 3 layers:

  • Endoderm
  • Mesoderm
  • Ectoderm

There is a major differentiation of cells which gives a template  for the origin of development of specific organs of the embryo.

3 0
3 years ago
What is the medical term for swimmer's ear?
skelet666 [1.2K]
Otitis external is the medical term for swimmers ear.
6 0
3 years ago
The triceps brachii muscle attaches to the olecranon process of the ulna crossing the posterior side of the elbow joint. that wi
Helen [10]

The triceps brachii muscle attaches to the olecranon process of the ulna crossing the posterior side of the elbow joint. that will allow the triceps to be an <u>Extensor </u>of the elbow joint.

  • Directly affected is the common extensor tendon, which arises from the lateral epicondyle of the elbow.
  • The common extensor tendon is made up of the extensor carpi radialis brevis (ECRB) and longus, extensor digitorum, extensor digiti minimi, and extensor carpi ulnaris.
  • The main elbow flexors are the biceps brachii, brachialis, and brachioradialis.
  • The main elbow extensor is the triceps brachii. Although it is also believed that the anconeus contributes to elbow extension.
  • The proximal articular region of the ulna is called the olecranon. It creates the larger sigmoid notch, which articulates with the humerus to allow for elbow flexion and extension, together with the coronoid process.
  • The main point of attachment for the forearm's extensor muscles is the common extensor tendon. This promotes forearm supination and allows finger extension.

learn more about Olecranon process: brainly.com/question/5986282

#SPJ4

6 0
2 years ago
Other questions:
  • Small lizards have difficulty defending their territory, but large lizards are more likely to be preyed upon by owls. which type
    8·1 answer
  • What is an advantage of using mulitiple lines on a line graph
    10·1 answer
  • What is the power house of the cell?
    15·2 answers
  • which of the following are the three goals of science? a. to make life easier, to extend the human life span, to reduce pain and
    9·2 answers
  • Which is the role of restriction enzyme.
    13·2 answers
  • Dr. Wagner is investigating a newly discovered, disease causing agent. She
    8·1 answer
  • Is dinosaurs dying considered a macroevoluation or a mikroevoluation?
    9·2 answers
  • During which stage of mitosis do the chromosomes line up along the middle of dividing cell
    6·1 answer
  • Menstruation occurs when.
    10·1 answer
  • An export processing zone is __________. a. another name for the top five economies in the world b. the line that divides the wo
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!