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Dmitrij [34]
2 years ago
15

What two nations were at the center of the Space Race in the 1950's Australia and Russia .China and United States .United States

and Russia .
Russia and China​
Biology
1 answer:
g100num [7]2 years ago
4 0

Answer:The Space Race was a 20th-century competition between two Cold War adversaries, the Soviet Union (USSR) and the United States (US), to achieve superior spaceflight capability.

Explanation:

i looked it up

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Which of the following does not provide evidence for evolution?
Kitty [74]

Answer:

b) natural variation w/in a species

Explanation:

All the answer you put are evidence of evolution also I have done this before.

7 0
1 year ago
Elephant seals are abundant in their population size but they have low genetic diversity within their species due to overhunting
Anastasy [175]
<h2>Genetic diversity </h2>

Explanation:

If the environment changes, the species runs the risk of not having the genetic diversity to be adaptable to that change and could go extinct

  • Genetic diversity is the diversity  or genetic variability within species
  • The huge variety of different gene sets defines an individual or a whole population's ability to tolerate stress from any given environmental factor
  • While some individuals might be able to tolerate an increased load of pollutants in their environment, others carrying different genes might suffer from infertility or even die under the exact same environmental conditions;the former will continue to live in the environment the latter will either have to leave it or die
  • Any change in the environment - natural or human induced causes a selection of events that only the fittest survive
  • In case of elephant seals,overhunting reduces the sum of genes available,thus leaving behind a population that is less capable of tolerating any further natural or human disturbances in environment
  • The loss of genetic diversity within a species can result in the loss of useful and desirable traits  
8 0
2 years ago
8(a)(ii) What are the subatomic particles that makes up the nucleus of<br>beryllium?<br>Your answer​
deff fn [24]
4 protons, 5 neutrons, 4 electrons
7 0
2 years ago
That are the main ideas behind the cell theory? Check all that apply.
Travka [436]

Answer:

2nd 3rd and 4th are the right statements

Explanation:

3 0
3 years ago
Read 2 more answers
The difference between a pH of 5 and a pH of 8 is
Kaylis [27]

Answer:

The correct answer is - D) 1000x.

Explanation:

pH is a logarithmic scale, 1 reading change leads to the results in ten-fold in the   H+ concentration in acidity/basicity. The more  H +  ions found in solution, the more acidic the substance is as acids donate  H +  ions.  

You can calculate the concentration of  H +  from the pH and the equation  

p H  = − log [ H + ]

arrange again

[ H + ]  =  10 − p H

So for a pH of 8, we get  [ H + ]  = 10 ^− 8

For a pH of 5, we get  [ H + ] = 10^ − 5

 10 ^−5  /10 ^− 8= 10 ^3

=  1000

7 0
2 years ago
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