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
vazorg [7]
3 years ago
15

How do astronomers rate the magnitude of a star?

Biology
1 answer:
qwelly [4]3 years ago
4 0
The astronomers rate the magnitude of a star with a SCALE.
You might be interested in
A cell with 80 chromosomes undergoes meiosis. How many chromosomes are found in the daughter cells? How many daughter cells are
qwelly [4]

Answer:

Four daughter cells are produced each with 40 chromosomes. The daughter cells would exhibit genetic variations and would not be genetically identical to each other.

Explanation:

Meiosis is a cell division that forms four daughter cells from one parent cell as two sequential division meiosis I and meiosis II do not include any DNA replication between them. Crossing over during prophase-I of meiosis-I includes the exchange of genetic segments and occurs between the homologous chromosomes. It produces new gene combinations in the daughter cells which were otherwise not present in the parent cell.

Since there is no DNA replication between meiosis I and meiosis II, the daughter cells have half the number of the chromosomes compared to the parent cell. This occurs as homologous chromosomes move towards the opposite pole during anaphase I.

Therefore, a parent cell with 80 chromosomes will make a total of 4 daughter cells by meiosis. Each daughter cell would have 40 chromosomes. These daughter cells would have some new gene combinations and would be genetically dissimilar among themselves.  

5 0
3 years ago
A substance with a pH of 3 is how many more times acidic than a substance with a pH of 5?
rodikova [14]
It’s 100x more acidic than 5
7 0
3 years ago
A device that uses wire streched across a fault to mesure horizontel movement of ground is called a
schepotkina [342]
<span> A creep meter uses a wire that stretches across a fault to measure horizontal movement of the ground, and a  </span>laser-ranging device uses alaser<span> beam & reflector to detect Horizontal fault movements. I hope this is right.</span>
6 0
3 years ago
List the ways how you can help make your commumity safe and healthy.<br>1.<br>2.<br>3.<br>4.<br>5.​
8_murik_8 [283]
1.) Follow the rules and laws in place which are meant to protect us.
2.) Alert the proper authorities when you know someone is not following the laws in place to protect us.
3.) If you see someone in danger help them however you can.
4.) Create a community watch group to prevent crime and ensure safety of those around us.
5.) Have a free social distancing neighborhood workout group to keep people active during quarantine.
4 0
2 years ago
Which layer of the atmosphere absorbs significant amounts of untraviolet light
defon

Answer: The answer is the Stratosphere.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Photosynthetic cyanobacteria caused an increase in atmospheric levels of
    6·1 answer
  • What is the function of cholesterol in the plasma membrane?
    9·1 answer
  • Which of these structures is primarily responsible for the enzymatic breakdown of a large molecules in the cell?
    12·1 answer
  • Which statement is true about Earth′s layers?
    11·2 answers
  • Starting with shredded spinach leaves, you follow a procedure that separates cellular organelles into different fractions. To id
    8·1 answer
  • I need the answer ASAP please, thank you!!
    5·2 answers
  • A student takes notes in class as shown below.
    10·2 answers
  • If each parent is a purebred, brown-eyed person, what is the probability of having a brown-eyed child.
    5·2 answers
  • The cell cycle is regulated by checkpoints during the _______ phases.
    11·1 answer
  • The diagram shows the first part of a kidney tubule and its blood supply. During filtration, protein molecules do not pass throu
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!