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
zzz [600]
3 years ago
8

Question 17

Biology
1 answer:
RideAnS [48]3 years ago
4 0
<h2>Answer:</h2>

Removal of the tarnish from the silver is a <u>physical change</u>.

<h2>Explanation:</h2>

The type of change which doesn't produce any new substance is called as physical change. Tarnish refers to the thin black layer that is formed on the silver. Formation of tarnish is chemical change as due to oxidation a black color layer is formed.  

On the other hand, removal of tarnish from silver is considered as physical change as no new product is formed and only we are obtaining the silver in its pure form.

You might be interested in
Skeletal muscles are?
Nesterboy [21]

Skeletal muscles are one of the three muscle types they are a form of  striated muscle tissue.

6 0
3 years ago
Read 2 more answers
Which two ideas did Darwin use to explain evolution? modern synthesis and natural selection acquired traits and modern synthesis
il63 [147K]
natural selection and common descent are the 2 ideas Darwin used to explain evolution
4 0
3 years ago
Read 2 more answers
_____ blood analysis provides qualitative information such as size, shape, and ratio of one cell type to another.
alexira [117]

Answer: Differential

Explanation:

The differential blood analysis provides information about the different components of the blood.

Analysis of blood is required in order to detect any disease. This test can detect the difference between the normal cell and abnormal cell.

The blood test can diagnose any type of disease like leukemia, any inflammation, cell shape, size and then compare it with normal cells of the body.

5 0
3 years ago
Light penetrates the clear water of the open ocean more deeply than it does lake
SOVA2 [1]
The answer is A: phytoplankton provides nutrients to consumers in the ecosystem.

Hope this helps:)
6 0
3 years ago
Part A: If one follows 70 primary oocytes in an animal through their various stages of oogenesis, how many secondary oocytes wou
olga nikolaevna [1]

Answer:

<u>Part A</u> : 70 secondary oocytes will be formed.

<u>Part B</u> : 70 first polar bodies will be formed.

<u>Part C</u> : 70 ootids will be formed.

Explanation:

During oogenesis growth maturation of a single oogonium produces one primary oogonium.

the primary oogonium then undergoes meiosis -1 and produces  one secondary oocyte and first polar body.

The secondary oocyte then undergoes meiosis - 2 and forms an ootid and second polar body.

The ootid then differentiates into the ovum.

As in the above scenario , 70 primary oocytes are present , they undergo meiosis-1 and produces 70 secondary oocytes and 70 first polar bodies. Hence answers of part A and B is 70.

As 70 secondary oocytes are formed , they undergo meiosis -2 and forms 70 ootids which then differentiate in 70 ovums.

8 0
3 years ago
Other questions:
  • What is connective tissue?
    7·1 answer
  • Which technique is most accurate in identifying an appropriate vein site for iv catheter insertion into the arm?
    7·2 answers
  • What is one of the four elements that make up 96.3% of living cells
    15·2 answers
  • What are some of the effects of the enhanced greenhouse effect?
    5·2 answers
  • The hotter the star, the more light it gives off, the cooler the star the less light it gives off. Stars that follow this patter
    8·2 answers
  • ______ is found in the nucleus of all eukaryotic cells.
    12·1 answer
  • What is the mass of the green cone? <br> A. 542.0 g<br> B. 540.2 g<br> C. 500 g<br> D. 480 g
    8·1 answer
  • One random marine biology fact!
    11·2 answers
  • As soon it cut a piece of an outdoor potted plant and brings it inside and place is it in a vase. A few weeks later, the student
    5·1 answer
  • What is the one thing that puts tremendous pressure on our biodiversity and natural resources?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!