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
ExtremeBDS [4]
2 years ago
6

Question 8

Biology
1 answer:
arsen [322]2 years ago
8 0

Answer:

D. is the correct answer

Explanation:

He was the first scientist to prove that cells can only form from pre-existing cells

Hope it helps.

You might be interested in
Which of the following correctly pairs labels of animals with the way they feed?
Vlad1618 [11]
<span>The answer is the option a. Filter feeders - strain food from water. You can realize the the option b is no rirght because carnivores eat meat (other aninals), c is not rigth because paraistes do not help other animals but they harm other animals, and d. is not right because herbivores eat plants and not bits of decaying matter. So you can eliminate b, c, and d. While a. reflects exactly what filter feeders eat.</span>
5 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST!!!!!!
vodomira [7]

Answer:

A: The xylem releases all it's water

Explanation:

This is so because wilting is the loss of rigidity of non-woody parts of plants. This occurs when the turgor pressure in non-lignified plant cells falls towards zero, as a result of diminished water in the cells. The rate of loss of water from the plant is greater than the absorption of water in the plant.

7 0
3 years ago
Read 2 more answers
How do peanuts help us to recover fe=rom starvation and Malnutrition ?
Shkiper50 [21]

Answer:

Peanuts have protein which helps malnutrition and free from starvation

Explanation:

7 0
3 years ago
PLEASE HELP I NEED HELP WITH THESE TWO QUESTIONS
cestrela7 [59]

Question:

Chromosomes are distributed randomly during anaphase I. What are the possible chromosome combinations in the two daughter cells? (Use the following abbreviations for the chromosomes. Dark green -> DG; Light  green -> LG; Dark purple-> DP, Light purple -> LP)

How does the random lining up of the homologous chromosome in Metaphase 1 contribute to Genetic Variation?

Answer:

Possible chromosome combinations:

  • LG,LP + DG,DP  
  • LG,DP + DG,LP        

The random arrangement of tetrads is different in every cell going through the meiosis process. Any chromosome of the homologous pair might face any of the poles and then migrate to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is different and depends on the chromosomes that form that cell.

Explanation:  

1) During meiosis, organisms can produce at least four different  gametes. Anaphase occurs after the prophase where crossing-over has occurred. During anaphase 1, the homologous chromosomes separate, migrating to different poles.

The possible chromosome combinations in the two daughter cells of the exposed example are

  • LG,LP + DG,DP  
  • LG,DP + DG,LP      

2) Crossing-over between homologous chromosomes (prophase 1), the random lining of homologous chromosomes (metaphase 1), and random fertilization are the mechanisms involved in genetic variation.

During metaphase I, homologous pairs together migrate to the equatorial plane, where they randomly aline with their kinetochores facing opposite poles. The random arrangement of tetrads is different in every cell going through the meiosis process. There is no equal alinement between two cells. When tetrads aline in the equatorial plane, there is no predetermined order for each of the homologous chromosomes of each tetrad to face one of the poles and then migrate to it while separating. Any chromosome of the homologous pair might face any of the poles and then migrate to it. Each of the chromosomes has two possibilities for orientation at the plane. When the new haploid cells are formed, the number of variations in each cell is also different and depends on the chromosomes that form that cell. This random order in the equatorial plane is what introduces variation into the gametes. It is almost impossible that two gametes resulting from meiosis will get the same genetic charge.

       

5 0
3 years ago
Which Organisms should be the most common in an ecosystem in order for every organism to get the energy it needs to survive?
galben [10]

Answer:

The answer is producers

Explanation:

producers convert the sun's energy to other things in photosynthesis

3 0
3 years ago
Other questions:
  • Meaning of asexual reproduction
    7·1 answer
  • What hormones are involved in the three stages of stress response?
    13·1 answer
  • Sister chromosome exchanges are recombination events that occur between homologous chromosomes and are often the result of:
    14·1 answer
  • Compared to atoms of the same element, isotopes have different
    9·2 answers
  • A farmer notices that his lettuce crops are covered in a white film and that the lettuce is being destroyed.
    6·2 answers
  • What are the types of trace elements in organic compounds?
    7·2 answers
  • What happens when atoms share electrons?
    15·2 answers
  • True or False Water moves from an area of low water concentration to an area of high water concentration.
    5·1 answer
  • Please help me <br><br>thank you ​
    10·2 answers
  • Do human blood cells contain a cell wall?
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!