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
Sedaia [141]
2 years ago
13

Which of the following statements is true?

Biology
1 answer:
Lubov Fominskaja [6]2 years ago
8 0
This statement is true: <span>The mineral ores for gold and silver are commonly found in the earth's crust.

These two types of metals are known as native metals because they are naturally occurring within the Earth's stratosphere. These metals are usually found through mining processes because they are often found mixed with sediments and other soil components. One method of acquiring gold is called gold panning while silver is obtained mixed with silver sulfide and sulfosalt minerals.</span>
You might be interested in
Which of these is an environmental change that occurs rapidly?
lozanna [386]
Out of all the options, only "Volcanic Eruption" is the rapid change

In short, Your Answer would be Option D

Hope this helps!
8 0
2 years ago
Read 2 more answers
the graph predicts the effect that each factor would have on the biodiversity of the mediterranean sea in the next 10 years. how
bixtya [17]

Answer: Exploitation, invasive species

If the government introduces laws prohibiting hunting, it would somewhat reduce the impact of exploitation would have on the biodiversity because hunting is mainly done for the purpose of fun or to derive valuables from animals like skin, horn, ivory, venome for selling them in the international market and making huge profit from them. Introduction of prohibition law on hunting will reduce killing and exploitation of animals for their valuables.

If laws prohibiting introduction of new plant or animal species within the country are passed, it will curb the effect of invasive species would have on the seas. Invasive species are those living species which are arrive or immegrate to new locations in search of resources. These species compete with native species which results in decline of native species. This will result in disturbance in actual sea biodiversity as this will result in decline in native sea species and may also lead to extinction of native species.

9 0
3 years ago
Read 2 more answers
Why is water said to have a high "specific heat index"
Vlada [557]
It's because of hydrogen bonding among water molecules
3 0
3 years ago
A researcher has developed two stains for use with seed plants. One stains sporophyte tissue blue; the other stains gametophyte
sukhopar [10]

Answer:

A) The pollen grains will be pure red.

Explanation:

Plants have alternation of generations, this means that there are two different stages in their life-cycle: a sexual haploid (n) phase and an asexual diploid phase (2n). These phases occur in different individuals, so there is an haploid plant called gametophyte that carries gametes and after fecundation, it will rise a diploid sporophyte (asexual).  

In seed plants, the sporophyte is the plant that we normally see, and the gametophyte is reduced into an organ of the sporophyte. The male gametophyte is the pollen that is produced in the sporangium in anthers (parts of sporophyte).  When a pollen grain fecundes a female gametophyte (egg), it will produce a diploid embryo or new sporophyte.

Therefore, if the researcher exposes pollen to both stains, these grain will stain red, because red stain identifies gametophyte tissue.

3 0
3 years ago
Water vapor is important because it helps air hold: PLEASE HELP THIS IS A QUIZ. and please dont answer if u dont know the answer
neonofarm [45]

Answer: D. Heat

Explanation : Water Vapor is a source of warmth, since the heat that is radiated from Earth is absorbed by the water vapor. This is why greenhouses use water vapor as well.

7 0
2 years ago
Other questions:
  • Which invertebrate is NOT bilaterally symmetrical ?
    9·1 answer
  • Would you find mitochondria in animal cells plant cells or both
    5·1 answer
  • Communities of microorganisms reside naturally on your skin, in your mouth and nasal passages, and in your digestive and urogeni
    6·1 answer
  • What is an example of a nonmotile protist?
    6·1 answer
  • ___________ is a structure that contains spores and is located on the underside of fern leaves. Basidium Bacillus Cilium Sorus
    8·1 answer
  • What do the amino acids tyr, asn, and thr have in common?
    9·1 answer
  • Which of the following proteins attach desmosomes to one another?
    11·1 answer
  • Which of the following best describes a eukaryotic cell?
    12·1 answer
  • You are studying a plant whose seeds persist in the soil for a long time, normally only germinating when the seeds are brought t
    5·1 answer
  • Could someone pls help me with biology?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!