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
Oksana_A [137]
4 years ago
14

An unknown black mineral must be identified as one of the minerals on this data table

Biology
2 answers:
Zepler [3.9K]4 years ago
7 0

D.

Hardness and streak


Paha777 [63]4 years ago
6 0
D) Hardness and streak
You might be interested in
What role does muscular tissue play in the digestive system?
daser333 [38]
About half of a body’s weight is muscle. Muscle tissue is of three distinct types: skeletal, cardiac, and smooth. Each type has a unique structure and a specific role. Skeletal muscle<span> moves bones. </span>Cardiac muscle<span> contracts the heart to pump blood. The </span>smooth muscle<span> tissue that changes shape to facilitate bodily functions of intestine and bladder. Here are more details about the structure and function of each type of muscle tissue in the human muscular system. </span>
6 0
3 years ago
You are attempting to see if a suspect is associated with a crime. The only evidence you have is a tiny drop of blood from the c
kykrilka [37]

Answer:

There are no options in this question but generally a sample of DNA can be increased;

By using Polymerase Chain Reaction (PCR) technique.

Explanation:

This question describes the application of making molecular biology to solving a crime problem; a branch called forensics. In this case where an insufficient small amount of DNA sample was recovered from the blood in a crime scene, the polymerase chain reaction technique, commonly known as PCR can be used to increase the DNA sample.

In the 1980's, a molecular technique used to amplify part of a template DNA strand to produce several copies of it, was invented by Kary Mullis and his colleagues. This amplification refers to the numerical increase in the number of DNA sequence.

6 0
3 years ago
The largest proportion of the carbon dioxide delivered from peripheral tissues to the lungs is carried in the blood:
Lemur [1.5K]

Answer: The correct answer would be option a.

Explanation:

The hemoglobin in red blood cell has a tendency to bind to oxygen as well carbon dioxide in a reversible manner. It depends upon the partial pressure of the gas.

For example, at tissue site, the concentration of carbon dioxide is higher than oxygen due to which the affinity of hemoglobin increases for carbon dioxide.

In hemoglobin, carbon dioxide reacts with water to form bicarbonate ions and hydrogen ions.

At alveolar site, these ions again convert into carbon dioxide and excrete out of the blood as a part of exhale air.

8 0
3 years ago
If an individual has genotype Dd, what are they?
ipn [44]

Answer:

Heterozygous dominant

Explanation:

because, as you know, heterozygous is different, and Dd has both dominant and recessive, making it heterozygous rather than homozygous.

Because the first d is dominant (capital D), then it makes the genotype dominant and heterozygous.

7 0
3 years ago
Read 2 more answers
What do food chains display?
victus00 [196]

Answer:A food chain shows what eats what in a particular habitat. It shows the flow of energy and materials from one organism to the next, beginning with a producer . ... The arrows between each organism in the chain always point in the direction of energy flow from the food to the feeder.

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Why does meiosis ii result in four 1n cells rather than four 2n cells?
    8·1 answer
  • What types of plants grow propagated by grafting layering and tissue culture​
    14·1 answer
  • What are the four general groups that matter can be classified into?
    7·1 answer
  • Imagine that you discover a carnivorous deep-sea fish that cannot utilize the carbon in carbonic acid, or any other inorganic mo
    10·1 answer
  • An elongating ribosome is bound to appropriate tRNAs in both the A and P sites and is ready for peptidyl transfer. What happens
    14·1 answer
  • After the big bang, atoms in gas clouds experienced a greater gravitational pull to each other than atoms in other regions of th
    6·2 answers
  • A bird that preys on moths is introduced to the habitat with moths and trees like the ones shown below.
    12·2 answers
  • The overall long-term effects of air pollution are not yet certain.<br><br><br> True False
    15·2 answers
  • (PLEASR HELP ME)
    14·2 answers
  • Plant Cell
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!