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Zepler [3.9K]
3 years ago
9

nd which of the following small bodies are hardest to tell apart because they have similar bodies?A)Dwarf planets and comets..C)

Asteroids and comets..D)Asteroids and meteoroids.
Biology
1 answer:
alex41 [277]3 years ago
4 0
Asteroids and meteoroids
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In what era did the plants begin to flourish?
Juliette [100K]

Answer: Paleozoic

Explanation: The Paleozoic Era, which ran from about 542 million years ago to 251 million years ago, was a time of great change on Earth. The era began with the breakup of one supercontinent and the formation of another plants became widespread. And the first vertebrate animals colonized land.

6 0
3 years ago
When a horse and a donkey have an offspring, it is called a mule--a hybrid that cannot reproduce itself. Why are horses and donk
RUDIKE [14]

Answer:

Horses and donkeys are two different species but belong to the same family Equidae and the genus Equus. They both have different numbers of chromosomes.

Although they look quite similar in appearance, there are many dissimilarities.

The physical differences between horses and donkeys include:

Donkeys backs are flatter than horses.

Donkeys have smaller hoofs than horses.

Donkeys have longer and thicker ears than horses.

Horses tend to have a long face than Donkeys.

Horses have six vertebrates, while donkeys have only five.

Tails of horses and donkey differ. Horses have long tails, whereas donkey’s tail looks like a cow’s tail.

On the genetic level, the total number of chromosomes in the horse is 64 and donkey have 62 number of chromosomes. Mule is a hybrid of a female horse and a male donkey. Hinny is a hybrid of a female donkey and a male horse. Both the offspring (hybrid offspring) produced by donkeys and horses are infertile, sterile, cannot have its own offspring and both have 31 pairs of chromosomes each.

If the produced offspring is fertile then the animals are of the same species and if the produced offspring is sterile then they are of different species. Because of this, both horses and donkeys are considered as a separate species. A species is generally defined as a group of organisms, which are capable of interbreeding and creating viable offspring. In this case, mule and the hinny are not really a new species and are produced by two different species.

4 0
3 years ago
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Suppose corinna undergoes a surgical procedure in which a catheter is inserted into her blocked artery and a balloon is inflated
Misha Larkins [42]
Balloon catherisation (angioplasty)
5 0
3 years ago
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When testing the effect of penicillin on the growth of E. coli, penicillin would be considered the? A.independent variable B. de
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A. It’s the thing you change and you’ll measure the E. coli growth
7 0
2 years ago
If you had a giant, 1000 cm Twizzler, how much of it would remain after: a) One half-life ____________________ b) Two half-lifes
navik [9.2K]

Explanation:

The half life is the time taken for a half of a radioactive material or substance to decay to half.

After the passing of the half-life, only half of the original material will remain. Now, let us follow the half-life sequence of this decay;

    One half-life

  Original: 1000cm

    one half life = 500cm

Two half-lifes

    Original: 500:

   half-life = 250cm

Three half-lifes

   Original : 250cm

   Half life = 125cm

Four half-lifes

    Original: 125cm

    Half life = 62.5cm

Five half-lifes

    Original: 62.5cm

     Half-life = 31.25cm

Six half-lifes

   Original: 31.25cm

   Half-life = 15.625‬

learn more:

Half life brainly.com/question/1695370

#learnwithBrainly

8 0
3 years ago
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