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
8090 [49]
2 years ago
10

Describe the hypotesis of continental drinft

Biology
1 answer:
Kruka [31]2 years ago
6 0

Answer:

Continental drift is the process whereby tectonic plates move along the surface of the earth. This is caused by convection in the lithosphere and asthenosphere.

You might be interested in
Human rights violated when George Floyd was apprehended​
Katarina [22]

Answer:

tell me how to answer it

6 0
2 years ago
Read 2 more answers
Number 12 PLS ASAP PLS
valkas [14]
The answer is H. He is mechanically digesting his food.
6 0
3 years ago
Read 2 more answers
Describe the role of a nebula in the life cycle of a star. Please use your own words​
raketka [301]

Answer:Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine brightly for many years. The exact lifetime of a star depends very much on its size.

6 0
2 years ago
Question 7 in the attachment, please help thank you so much!
sertanlavr [38]

Answer:

Here are the answers:

a. 4  Cell determination as an issue in the *rest is missing*

b. 4  They assumed that different ways of separating an embryo into two parts would be equivalent as far as the fate of the two parts was concerned.

c. 4  I and III only

Explanation:

The passage demonstrates the importance of two factors in the development of an embryo: cleavage planes of division of embryonic cells and cell differentiation.

Cleavage Planes:

Cleavage basically refers to the division of the zygote into a large number of cells called blastomeres. Cleavage planes are geometrical lines or orientations along which cleavage takes place. Since, all embryonic cells are the precursors of some type of body cells, the cleavage planes determine if the cells are adequate for growth and development.

Cell Differentiation:

Cell differentiation is the transition of an undifferentiated cell into a specialized one. For example, stem cells are undifferentiated cells that develop into progenitor cells that mature into a specific cell lineage. For an embryo to regenerate, the presence of adequate embryonic stem cells is crucial. Embryonic stem cells are present in abundance before the gastrulation phase of embryonic development, after which they rapidly start differentiating.

5 0
3 years ago
1. Which of the following events is not a source of genetic variation in eukaryotic organisms?
Lunna [17]

Answer:

Mitosis

Explanation:

Mitosis is not a source of genetic mutation because it take place mostly in the somatic cells. This is because it does not lead to the production of gametes . In mitosis, the parent cells divide into two daughter cells and each daughter cells are genetically identical to the parent cell because they carry the same number of chromosomes as the parent cell. There is no genetic variation in this.

5 0
3 years ago
Other questions:
  • Why is it important 2 protect the world's reef system? Do u think artifacts reefs r the solution? Explain your answer.
    15·1 answer
  • Explain the two main functions of the cell membrane in the cell
    15·2 answers
  • Which condition can lead to neurogenic sock?
    9·2 answers
  • How much do you need to drink?
    11·2 answers
  • A scientist wanted to formulate a pill to attack a specific type of bacteria that infects the throat. Which biological component
    6·2 answers
  • Which human activity increases beach erosion
    7·2 answers
  • Is one side of DNA is TCA, what is the other side?<br><br> A. AAA<br> B. TCA<br> C. AGT<br> F. TGA
    11·1 answer
  • What amount of chromosomes will each daughter cell have after mitosis and cytokinesis?
    10·1 answer
  • Please provide the complementary DNA sequence, mRNA sequence, tRNA sequence, and amino acid sequence for the following DNA segme
    6·1 answer
  • Glucose-6-phosphate dehydrogenase deficiency (G6PD) is inherited as an X-linked recessive allele in humans. A woman whose father
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!