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umka2103 [35]
3 years ago
14

When once- ler factory closed, what happened to the town? It’s from the movie The Lorax

Biology
1 answer:
GalinKa [24]3 years ago
4 0

Answer:

in the process of cutting down so many trees harmed the environment to the point where all animals had to leave even the factory workers left the factory once the last Truffula Tree was chopped down

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What is mitosis and why is it important for identical cells to be produced
Ksivusya [100]

Mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. Mitosis is important because the organism must:

1. replace cells that have worn out or died

2. repair tissue that is damaged

3. add cells in order to grow

4. make new kinds of cells in order to develop


7 0
3 years ago
In figure 33.2 in your textbook, which two main clades branch from the most recent common ancestor of the eumetazoans?
Taya2010 [7]
The two main clades branch from the most recent ancestor is called <span>Cnidaria and Bilateria. Please have in mind that Cnidaria is a phylum containing 10.000 species of animals. Now on the other hand, Bilateria is a major group of animals. After looing at the figure 33.2 we can conclude that these two are part of the ancestor of the eumetazoans which is a clade comprising all major animals. </span>
7 0
3 years ago
While alive, an organism absorbs (radioactive) carbon 14 at such a rate that the proportion of carbon 14 in the organism remains
Inga [223]

Answer:

The person has been dead for approximately 15,300 years

Explanation:

<u>Available data</u>:

  • The half-life of carbon 14 is 5,600 years
  • The human skeleton level of carbon 14 is 15% that of a living human

To answer this question we can make use of the following equation

Ln (C14T₁/C14 T₀) = - λ T₁

Where,

  • C14 T₀ ⇒ Amount of carbon in a living body at time 0 = 100%
  • C14T₁ ⇒ Amount of carbon in the dead body at time 1 = 15%
  • λ ⇒ radioactive decay constant = (Ln2)/T₀,₅
  • T₀,₅ ⇒ The half-life of carbon 14 = 5600 years
  • T₀ = 0
  • T₁ = ???

Let us first calculate the radioactive decay constant.

λ = (Ln2)/T₀,₅

λ = 0.693/5600

λ = 0.000123

Now, let us calculate the first term in the equation

Ln (C14T₁/C14 T₀) = Ln (15%/100%) = Ln 0.15 = - 1.89

Finally, let us replace the terms, clear the equation, and calculate the value of T₁.

Ln (C14T₁/C14 T₀) = - λ T₁

- 1.89 = - 0.000123 x T₁

T₁ = - 1.89 / - 0.000123

T₁ = 15,365 years

The person has been dead for approximately 15,300 years

4 0
3 years ago
Darwin also observed fossil shells of marine organisms high up in the Andes mountains, and saw an earthquake move land that was
liraira [26]

Answer:

Geological events can cause drastic changes over long periods of times

Explanation:

He used these insights and stated that Geological events can cause drastic changes over long periods of time. Such changes can cause entire species to become extinct or cause drastic evolutionary physical changes to other species. This is because the environment changes and the animals living in these environments need to adapt in order to be able to survive. Some changes such as continental drift can even move species to different parts of the world where the climate is drastically different.

5 0
3 years ago
13
hram777 [196]
The amoeba is a eukaryote whose bodies most often consist of a single cell.
The cells of amoebae, like those of other eukaryotes, possess certain characteristic features. For example:-
1. Their cytoplasm and cellular contents are enclosed within a cell membrane.
2. Their DNA is packaged into a central cellular compartment called the nucleus.
3. They contain specialized structures called organelles, which execute a range of cellular functions including energy production and protein transport.

6 0
3 years ago
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