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
Mariana [72]
2 years ago
10

Petrification occurs when:

Biology
1 answer:
LenaWriter [7]2 years ago
6 0

Answer:

(B) shell and bone are replaced with minerals

Explanation:

Petrification is simply turning into stones. It is one of the ways of fossilization which helps to preserve an organism from decay and total loss from the stratigraphic record.

  • In this process, soft parts of an organism are replaced by minerals
  • The minerals crystallize and becomes solidified.

This process is therefore known as petrification.

You might be interested in
Which of these is the movement of material caused by the interaction between warm and cool material?
lesya692 [45]
Convection Current  
This happens when there is a noteworthy contrast in temperature between two sections of a liquid. At the point when this temperature distinction exists, hot liquids rise and cool liquids sink, and after that streams, or developments, are made in the liquid
7 0
3 years ago
We are studying 3 strains of bacteria, with populations p1, p2, p3, in an environment with three food sources, A, B, C. In a day
Nastasia [14]

Answer:

The population of each bacteria in 1, 2, 3 are 12, 8, and 7 respectively.

Explanation:

From the given information:

For  food source A; we have:

3P₁ + P₂ + 2P₃ = 58    units of food A ---- (1)

For food source B; we have:

2P₁ + 4P₂ + 2P₃ = 70   units of food B  ---- (2)

For food source C; we have:

P₁ + P₂  = 20   units of food C    ----- (3)

From equation (1) and (2); we have:

3P₁ + P₂ + 2P₃ = 58

2P₁ + 4P₂ + 2P₃ = 70

By elimination method

 3P₁ + P₂ + 2P₃ = 58

-

 2P₁ + 4P₂ + 2P₃ = 70

<u>                                       </u>

<u> P₁  -   3P₂   + 0    = - 12    </u>

P₁ = -12 + 3P₂   ---- (4)

Replace, the value of P₁  in (4) into equation (3)

P₁ + P₂  = 20

-12 + 3P₂ + P₂  = 20

4P₂ = 20 + 12

4P₂ = 32

P₂ = 32/4

P₂ = 8

From equation (3) again;

P₁ + P₂  = 20

P₁ + 8 = 20

P₁  = 20 - 8

P₁  = 12

To find P₃;  replace the value of P₁ and P₂ into (1)

3P₁ + P₂ + 2P₃ = 58

3(12) + 8 + 2P₃ = 58

36 + 8 + 2P₃ = 58

2P₃ = 58 - 36 -8

2P₃ = 14

P₃ = 14/2

P₃ =  7

Thus, the population of each bacteria in 1, 2, 3 are 12, 8, and 7 respectively.

4 0
3 years ago
Discuss what is meant by heterozygote advantage and use sickle-cell anemia as an example
vodomira [7]
When a single copy of a disease allele doesn't result in a disease but instead is good for the person or organism that carries it, we say that allele has a heterozygote advantage. In other words this occurs when heterozyhotes have increased fitness over both homozygotes.  A good example is sickcle cell trait, which protects against malaria in heterozygotes, but causes a deadly disease in homozygotes. 
6 0
3 years ago
This is where the genetic information is found in a eukaryotic cell? A) nucleus B) cytosol C) mitochondrial D) endoplasmic retic
Lelechka [254]

In eukaryotic cells, all the genetic information, in other words, the DNA is found in the nucleus, where its arranged in chromosomes. Therefore, the answer is A).

In the other hand, in prokaryotic cells, it isn't inside any special structure. Instead, it's just dispersed through the cytoplasm.



Hope it helped,


BioTeacher101

7 0
3 years ago
Read 2 more answers
When an amoeba undergoes reproduction, the end result are two totally independent organisms. Which term best describes the amoeb
never [62]

Answer:

C. Fission

Explanation:

Amoeba reproduces by asexual reproduction method - binary fission. After replicating its genetic material through mitosis, the cell divides into two independent equal sized daughter cells.

6 0
3 years ago
Read 2 more answers
Other questions:
  • The cubic centimeter (cm3) is a measurement of which of the following quantities?
    13·2 answers
  • What is the body's tendency to maintain relatively stable internal conditions in spite of greater changes in its external enviro
    8·2 answers
  • How does increasing in carbon dioxide affect photosynthesis?​
    10·1 answer
  • Amelia puts some ice cubes in a cup of water at room temperature. Which statement describes the heat flow in this situation?
    10·2 answers
  • Assuming that a person going to community college can't afford to go to a four-year college is an example of a) a generalization
    11·1 answer
  • Material Density (g/cm3)
    10·1 answer
  • )Which sentence is written in third-person point of view?
    12·1 answer
  • About 96% of sea water is made of: A. Nitrogen/ B. Carbon dioxide/ C. Sodium and chloride/ D. Hydrogen and oxygen
    7·2 answers
  • explain the differences between the particles of a pure substance and the particles of a mechanical mixture
    5·1 answer
  • The discarded theory of blending inheritance most closely resembles what inheritance
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!