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
Mashutka [201]
3 years ago
13

A sample can be scratched by glass but not buy a fingernail. which two minerals could the sample be made of?

Biology
1 answer:
Alex73 [517]3 years ago
5 0

Answer:

apatite fluorite

Explanation:

You might be interested in
HELP ME PLEASE SOON BEFORE 1/4/2021
daser333 [38]
I’m not sure if that’s the answer but what immediately pops up in my mind is the food chain. Primary consumers (herbivores) consume producers (plants). Secondary consumers consume primary consumers etc. At the end of the day, all kinds of animals die and decompose, providing nutrients for producers to grow, continuing the circle of life.
Lion is a top predator that hunts secondary consumers. Simba’s father died and contribute to the circle of life. I hope it gave you some pointers!

8 0
2 years ago
PLEASE HELP
Sladkaya [172]
Sorry I have no idea but if you read the summer of the swans please let me know because I got a lot of questions to ask
8 0
3 years ago
Read 2 more answers
Which level of biodiversity includes species richness and evenness?
Novay_Z [31]
The answer is:

Community Diversity.

Reason Why: Here is an example, say you have 2 communities, community 1 is A, and community 2 is B, Communities A and B contain 5 tree species, However because community B has greater species evenness it has greater species diversity.
Community A is dominated by one of its 5 species and so has lower species diversity than.....community B, which has the same 5 species but in equal proportion.

Richness- Number of Species
Evenness-Relative abundance.

Hope This Helped!
7 0
3 years ago
Read 2 more answers
Explain the role of the cork cambium in woody plants.
kiruha [24]

Answer:

The cork cambium is a natural insulator that protects woody plants from an hostile environment.

Explanation:

The cork Cambium is a tissue that belongs to the epidermis, it is responsible for the secundary growth in the plant and replaces the epidermis in roots and stems. The cork cambium also protects the plant from overhydration, it is waterproof and has really selective ways to let the water into the plant (apoplastic and symplastic pathway).

There is some special plants in the coast of the tropical area called mangrooves, these plants has really specialized cork cambium that controls not only the water levels but also the salt levels into the plant.

The cork cambium is really important because protects and regulates the plant and its environment.

4 0
3 years ago
Why is it important for geologists to use both relative and absolute ages to determine the age of rocks?
uysha [10]

Answer:

to help and determine the exact age of the rocks

Explanation:

The study of rocks strata is known as stratigraphy. It is useful and helps the scientist and the researcher to study the earth's crust and its past.

Scientist could age the rock using two methods. They are :

Relative ages

Absolute ages

Early scientist could determine the exact age of the rock of the earth's crust. They use to find the relative ages of the layers of the rocks and then determine how one rock layer is older or younger than the other. But with advancement and development of carbon dating, scientist could tell the exact age of the rocks found on the earth's crust.

The Scientists uses the relative as well as the absolute dating technique to date the rock layers. They organize the rock layers based on their age and scale from the oldest to the youngest on a geologic time scale. So an exact date of the rocks can be determine by using the two methods of relative age and the absolute age.

3 0
3 years ago
Other questions:
  • Two characteristics of natural wines are that they have a maximum alcohol content of 14% and are ""sparkling"" wines. Apply your
    9·1 answer
  • Which of the following monomers are correctly matched with their polymers
    9·2 answers
  • The pathogen for ringworm is __________.
    15·1 answer
  • Neurological studies on memory have revealed that the______ play an important role in explicit memory and that the _____ play an
    12·1 answer
  • 50 points! b)separates sections of DNA by size in order to isolate specific genes. (1 point)
    9·2 answers
  • A dominant allele masks/hides the effect of a recessive allele.
    7·1 answer
  • Bacteria first appeared 2.5 billion years ago; while tracing the first eukaryote is difficult, animals first emerged 550-650 mil
    8·2 answers
  • Which of the following is an example of a producer? a. Oak Tree b. Big Horn Sheep c. California Kingsnake d. Box Jellyfish Pleas
    6·1 answer
  • Please help me with the following discussion questions for my biology experiment to determine the population of animals using a
    11·1 answer
  • Describe DNA replication. Include all relevant aspects. When does this process occur? and why
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!