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natta225 [31]
3 years ago
11

There is a theory that gravity could pull galaxies back together, causing a reverse big bang.

Biology
2 answers:
Rashid [163]3 years ago
8 0

Answer: The expansion of the universe is accelerating.

Explanation: Every millisecond the expansion slowly but surely speeds up.

Ede4ka [16]3 years ago
4 0

Answer:

I would say A: "Background radiation is present.

Explanation:

B, C, and D are proving that the universe is still expanding to this very second, the faster the universe expands the bigger it gets (obviously). Gas giants forming farther away from the Sun, once again, shows that the universe is expanding, and the same thing applies with B.

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. While Carl Linnaeus catalogued nearly all known organisms of his day, which major group of organisms did he not account for in
Blababa [14]

Answer:

Single-cell organisms

Explanation:

In 1735, Linnaeus introduced a classification system with only two kingdoms: animals and plants. Linnaeus published this system for naming, ranking, and classifying organisms in the book "Systema Naturae". In the epoch that Linnaeus created this system, single-cell organisms such as bacteria and protists were almost unknown. In 1866, E. Haeckel added a category including both bacteria and protozoa, thereby adding a category formed by single-cell organisms (different from animals and plants). During the 1900-1920 period, bacteria were classified as a separated kingdom named 'prokaryotes'. The current three-domain classification system was introduced by C. Woese in 1990. In this system, all forms of life are divided into three different domains: archaea, bacteria, and eukaryote domains (this last composed of protists, fungi, plants and animals).

6 0
2 years ago
Gold has a specific heat of 0.129 J/(g×°C). How many joules of heat energy are required to raise the temperature of 15 grams of
Elodia [21]

Answer:

\boxed {\boxed {\sf 121.905 \ J  }}

Explanation:

We are asked to find the energy given mass, specific heat, and change in temperature. Therefore, we must use this formula;

q= mc \Delta T

The mass is 15 grams and the specific heat is 0.129 J/(g×°C). Let's calculate the change in temperature.

  • ΔT= final temperature - initial temperature
  • ΔT= 85 °C- 22°C = 63°C

Now we know all the values:

m= 15 \ g \ \\c= 0.129 \ J / (g* \textdegree C) \\\Delta T= 63 \ \textdegree C

Substitue the values into the formula.

q= (15 \ g)( 0.129 \ J / (g* \textdegree C)) ( 63 \ \textdegree C)

Multiply the first numbers together. The grams will cancel.

q= (1.935 \ J/ \textdegree C) ( 63 \ \textdegree C)

Multiply again, this time the degrees Celsius cancels.

q= 121.905 \ J

<u>121.905 Joules</u> are required.

5 0
2 years ago
Read 2 more answers
An ecosystem can be viewed as a host that is parasitized by the organisms that live on it. Agree or disagree?
kari74 [83]
I agree because an ecosystem and a host are basically the same thing.
3 0
3 years ago
Read 2 more answers
Susan wants to see how
Allushta [10]

Awnswer\\rg: cool

exxscatmatiom

7 0
2 years ago
Why might (mostly) boneless creatures, like jellyfish, sea slugs, squid, and octopuses, fare especially well underwater? What is
vagabundo [1.1K]

Answer:

The species that develop in aquatic environments, need to be able to have an adequate locomotion and according to the hydrostatic pressure in the water, which this pressure has the opposite direction to gravity in terrestrial life.

Explanation:

Vertebrates that have a skeleton are accustomed to gravitational forces, and this bone structure is what allows adequate locomotion to perform movements as a function of the force of earth's gravity, in water the force of gravity has no effect, since that the hydrostatic force predominates, which the direction is opposite to the gravitational forces.

Amorphous bodies, with few solid structures, not bony, make them better adapt to movements in water masses that are promoted by hydrostatic forces.

5 0
2 years ago
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