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
REY [17]
3 years ago
13

Why do some metals lose their shine but Gold Does not

Biology
2 answers:
ser-zykov [4K]3 years ago
7 0
Because it doesn't have the same materials as gold
vekshin13 years ago
3 0
Gold has more ductile and luster . much more than other metals.
You might be interested in
Classify the following organisms into their respective kindoms 1.yeast 2.penicillium 3.rhizobium 4.mushroom 5.amoeba 6.fish
Fofino [41]

Answer:

1.fungi,   2.fungi     3.monera   4.fungi   5. protista  6. animalia

Explanation:

since, yeast is a fungus , penicilium and mushroom (agaricus) also fall under this catergory due to the <em>presence of mysceliom and hyphae.</em>

rizobium is a <em>bacteria</em> so falls under the kingdom monera

amoeba has <em>locamotory organs</em> hence is a part of the protista kingdom

while , fish is <em>an animal</em> and thus belong to animalia

5 0
3 years ago
The muscular system helps maintain body temperature. Explain why humans shiver in the cold. Be sure to discuss the process of ce
docker41 [41]
The muscular system contributes to maintaining homeostasis by working with other body systems to regulate body temperature and dilate or constrict blood vessels close to the skin's surface, according to OpenCurriculum. The muscular, nervous, cardiovascular, endocrine and integumentary systems work together to cause sweating and shivering in the body, which contribute to homeostasis.
3 0
3 years ago
which part of the brain is represented by the highlighted area shown below? cerebrum cerebellum medulla oblongata pons
Leviafan [203]
Cerebrum is in the most anterior part of our brain, fronting of the skull. It functions in sensory and neural processes. Cerebellum is found at the back of the skull. It functions in coordination, balance and muscular activity. Medulla oblongata connects from the spinal cord which controls heart and lungs. Pons is part of the brainstem which controls breathing and communication.
7 0
3 years ago
Read 2 more answers
What is the main difference between catalysts <br> and enzymes?
Harrizon [31]

Answer:

Enzymes are proteins that increase (only) the rate of chemical reactions converting substrate into product.

Catalysts are substances that increase or decrease the rate of a chemical reaction but still remain unchanged.

3 0
3 years ago
The "rod-cone break" in the dark adaptation curve occurs after about ____ in the dark.
emmainna [20.7K]
The correct answer is "<span>7 minutes".

The Rod-Cone-Break is considered to be a d</span>ark environment adaptation function in the eye, wherein for an estimated time of the first ten minutes in the dark, the cones<span> needs less light to reach a threshold response than do the </span>rods<span>. Thereafter, the </span>rods<span> need less light. The point at which the </span>rods<span> become more sensitive is called the </span>rod-cone break<span>.</span>
3 0
3 years ago
Other questions:
  • The formal system for classifying and naming organisms was developed by The formal system for classifying and naming organisms w
    12·1 answer
  • What is the sodium-potassium pump?
    15·1 answer
  • WHEN CELLS ARE NOT DIVIDING, ARE CHROMOSOMES EASILY SEEN. EXPLAIN
    10·1 answer
  • How does the zygosporangium of Rhizopus stolonifer function to ensure the survival of the species? A: It breaks down complex mat
    10·1 answer
  • List 3 parts of the cell theory?
    5·1 answer
  • What is it about the life-cycle that makes cane toad populations successful?
    9·2 answers
  • The concentric rings of calcified intercellular substance arranged around Haversian
    5·1 answer
  • Help plz I need help!!!!!
    14·1 answer
  • How are photosynthesis and cellular respiration similar?
    8·1 answer
  • Which human action has not lead to significant changes in Earth’s biomes?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!