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Art [367]
3 years ago
14

Explain how the coronavirus and quarantine has affected the environment both locally, and globally. Give at least two important

examples.
Biology
2 answers:
8090 [49]3 years ago
8 0
Carbon emissions are lowering and waters are clearing
Advocard [28]3 years ago
3 0

Answer:

Quarantine is making us bored in our house, we can't see people, we can't go out like we used to. Coronavirus if a very nasty disease, and this led to quarantine. That's why people sell hand sanitizer, Lysol disinfectant, and corona masks, so we won't catch it.

To all those quarantined people,

Whether you have corona or not, stay home.

We're alone together.

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A scientist is studying the inheritance of two characteristics in plants: red flowers (RR and Rr) , which are dominant to yellow
marin [14]

Answer:

The correct option is <em>B. Crossing- over </em>

Explanation:

In biology, crossing over can be described as a phenomenon by which homologous chromosomes exchange segments during the process of meiosis.

The unexpected results came because the DNA segment between the homologous chromosomes was exchanged during meiosis. The alleles got shuffled by this process and hence showed the unexpected results.

Crossing over and independent assortment are phenomenon which occurs only during the process of meiosis. These phenomenons cannot be observed during mitosis.

7 0
3 years ago
List some ways a DNA strand is similar to a ladder
ruslelena [56]
A DNA molecule is like a ladder because there are two sides (the sugar-phosphate backbones of the two strands) and rungs (each rung being a pair of complementary bases). Twisted, because the molecule is twined in a coil called a helix - or rather, a double helix because there are two strands.
3 0
3 years ago
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Kara was tested for diabetes. her fasting plasma glucose test showed a level of 120 mg/dl. this indicates that
Leno4ka [110]
A single test won't put the definitive diagnosis of diabetes. This diagnosis is put on 3 conseccutive measurements and they all have to be more that 125.
4 0
3 years ago
Describe 2 homologies (structures that were shared from a common ancestor) between the Zeuglodon and the Orca.
Elden [556K]

Answer:

Homologous structures can be described structures which originate in different organisms from a common ancestor and may or may not have the same functions.

Zeuglodons can be described as ancient whales and Orca is a common whale today known as the killer whale.

<u><em>Scientific studies show that Zeuglodans and Orca have many structures in common such as:</em></u>

  • <u><em>Having teeth with two roots</em></u>
  • <u><em>The presence of nostrils</em></u>
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5 0
3 years ago
14. Which is the basic unit of life?
Dominik [7]

Answer:

C

Explanation:

Every living thing is made up from cells, as they are the smallest unit of a living thing.

6 0
3 years ago
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