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
harina [27]
3 years ago
14

The total variety of organisms that live in the biosphere

Chemistry
2 answers:
RUDIKE [14]3 years ago
8 0
The sum total<span> of the genetically based </span>variety<span> of </span>living organisms<span> in the </span>biosphere<span> is called a. species diversity. c. biodiversity.</span>
Alik [6]3 years ago
7 0

biodiversity is the answer

You might be interested in
Deep sea divers use a mixture of helium and oxygen to breathe. Assume that a diver is going to a depth of 150 feet where the tot
Svetlanka [38]

Answer:

4.525% is the percentage by volume of oxygen in the gas mixture.

Explanation:

Total pressure of the mixture = p = 4.42 atm

Partial pressure of the oxygen = p_1=0.20 atm

Partial pressure of the helium = p_2

p_1=p\times \chi_1 (Dalton law of partial pressure)

0.20 atm=4.42 atm\times \chi_1

\chi_1=\frac{0.20 atm}{4.42 atm}=0.04525

\chi_2=1-\chi_1=1-0.04525=0.95475

chi_1+chi_2=1

n_1=0.04525 mol,n_2=0.95475 mol

According Avogadro law:

Moles\propto Volume (At temperature and pressure)

Volume occupied by oxygen gas  =V_1

Total moles of gases = n = 1 mol

Total Volume of the gases = V

\frac{n_1}{V_1}=\frac{n}{V}

\frac{V_1}{V}=\frac{n_1}{n}=\frac{0.04525 mol}{1 mol}

Percent by volume of oxygen in the gas mixture:

\frac{V_1}{V}\times 100=\frac{0.04525 mol}{1 mol}\times 100=4.525\%

6 0
3 years ago
How many elements are man made
siniylev [52]
26 elements are man-made ..........
6 0
3 years ago
Read 2 more answers
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O
larisa [96]
Make a quick chart with each element represented, and count them up. HINT - leave the polyatomic anions together - in this case, PO4

Left      Right
1     Ca  3
2      O   1
5      H   2
1    PO4 2

Begin by balancing like finding common denominators of fractions - apply to both sides:
I started by adding a 2 in front of H3PO4 on the left, them 6 in front of H2O on the right. Last, a 3 in front of Ca (OH)2. Then, re-count using the chart format to make sure you're right.

3Ca(OH)2 + 2H3PO4 = Ca3(PO4)2 + 6H2O

4 0
3 years ago
What is "X" in the following reaction?
charle [14.2K]
X is the answer that we do not know yet!!:)
4 0
2 years ago
A gamma ray primarily consists of pure energy and no mass. True False
notka56 [123]
This is true otherwise cancer patients would have a hole in them and so would the hulk ;)
3 0
3 years ago
Other questions:
  • An atom that has a charge because it has gained or lost electrons is
    6·1 answer
  • What percentage of the mass of a carbon-12 atom is
    15·1 answer
  • Calculating the Molecular Weight and Subunit Organization of a Protein From Its Metal Content The element molybdenum (atomic wei
    6·1 answer
  • I NEED THE ANSWER ASAP, GIVING BRAINLIEST.
    15·2 answers
  • Why do people make mixtures
    13·1 answer
  • Manganese(II) oxide, lead(IV) oxide, and nitric acid react to produce permanganic acid, lead(II) nitrate, and water according to
    12·1 answer
  • The rate of filtration is Select one: a. modified by boundary layer effects. b. increased with increasing viscosity of the fluid
    9·1 answer
  • PLEASE PLEAS HELP Which of the following compounds is insoluble in water?
    9·1 answer
  • Which of the following represents a molecule?
    15·2 answers
  • A. The potential energy of the products is greater than the potential energy of the reactants
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!