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
Nuetrik [128]
2 years ago
14

What is limestone?**

Biology
2 answers:
yaroslaw [1]2 years ago
8 0

Answer: a hard sedimentary rock, composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement.

Nitella [24]2 years ago
7 0
Limestone is a sedimentary rock made of calcium carbonate (CaCO3), composed mainly of calcium carbonate or dolomite, used as building material and in the making of cement.
You might be interested in
I NEED HELP ASAP CAN SOMEBODY HELP ME PLZ
Simora [160]

Answer: B

Explanation:

i think B because it sounds the most right and the other ones jsut don’t make sense

7 0
3 years ago
The baglike structure that contains a clear fluid in which the developing embryo floats is called the
LenKa [72]

The baglike structure that contains a clear fluid in which the developing embryo floats is called the Amnion.

<h3>What is an Amnion?</h3>

The membrane that  covers the embryos of reptiles, birds, and the mammals when first formed is called Amnion.

It contains amniotic fluid, which serves as an amniotic sac that provides a protective shield for the developing embryo. Together with the amnion, contains the

  • chorion
  • the yolk sac
  • allantois

with different functions to  protect the embryo.

The amniotic sac in humans is enclosed in the uterus while for birds, reptiles ,it is enclosed in a shell.

Read more on amnion here : brainly.com/question/23393678

3 0
2 years ago
You are studying brain cells and you discover a protein neurotransmitter that you
blondinia [14]
It is C beacuse you would produce large quantities of the neurotransmitter to see if it could be used as a potential medication.
4 0
3 years ago
Which of the following substances is not found in the sweat. ?? a)water.
dybincka [34]

Answer:

Glucose

Explanation:

Water is an obvious one. Dissolved in the water are traces of urea. And there are concentrations of sodium. No glucose though.

3 0
3 years ago
What do we call the part of the cell that is considered the brain of the cell because it controls and directs all of the cell's
Natasha_Volkova [10]
Known as the cell’s “command center,” the nucleus is a large organelle that stores the cell’s DNA (deoxyribonucleic acid). The nucleus controls all of the cell’s activities, such as growth and metabolism, using the DNA’s genetic information. Within the nucleus is a smaller structure called the nucleolus, which houses the RNA (ribonucleic acid). RNA helps convey the DNA’s orders to the rest of the cell and serves as a template for protein synthesis.
7 0
3 years ago
Other questions:
  • Complete the following statement sexually produced offspring often
    14·2 answers
  • During the process of chromosome replication, A genetic error occurs. As a result, a sequence of events occurs as described belo
    13·1 answer
  • Which of the following is not a characteristic of enzymes?
    10·1 answer
  • Properties that change when the size of an object changes are called
    5·1 answer
  • What kind of system is generally composed of a fluid system to move the heat from the collector to its point of usage and a rese
    10·1 answer
  • Jeremy loses his former interest in doing arithmetic after his teacher promises him $1 for each problem he solves correctly. Whi
    13·2 answers
  • What can happen if cells do not duplicate correctly?
    6·1 answer
  • All of the following are evidence for evolution EXCEPT -
    15·1 answer
  • A Low frequency will have a ___________wave length.
    8·2 answers
  • Why are summer days longer than winter days on earth ?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!