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TiliK225 [7]
3 years ago
14

Ozone, a pollutant or a gas to protect us? We have known that the ozone layer absorbs (slides 12 to 16) most of the sun's ultrav

iolet light, which is potentially damaging to life on earth. At the same time, we have heard that ozone pollution (slides 25-28) is pretty significant in urban areas like l.A. So ozone is good or bad? Elaborate your answers by using what you've learned so far.
Biology
1 answer:
krok68 [10]3 years ago
8 0

Ozone is good when it is in the stratosphere but bad when in the troposphere (where the weather system occurs). When in the stratosphere it help absorbs UV light from sunlight before reaching earth surface. This prevents damage to the genetic material of living organisms.

When in the troposphere, it is considered a pollutant and causes irritation of the lungs when inhaled. It also affects vegetation by reducing crop growth and yield.


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Match the following.
dimaraw [331]

Answer:

1) Organisms in this level are either unicellular or colonial (Cellular level).

2) Organisms that live in a group called a colony (Colonial).

3) The work being divided up into specialized tasks (Division of labor).

4) A very long, contracting cell (Fiber).

5) A group of tissues working together as a unit (Organ).

6) A degree of organism complexity. Organisms at this level have their cells arranged into organs (Organ level).

7) The highest level of complexity of a living thing (Organism level).

8) The limiting of the function of a cell to a specific function muscle (Specialization).

9) A group of organs working together for a common purpose (System).

10) Organisms at this level have their cells arranged into systems (System level).

11) Cells working together to perform a particular task division of labor (Tissue).

12) Organisms at this level have their cells arranged into tissues (Tissue level).

8 0
3 years ago
In a group of muskmelon plants, some individuals have sour fruit and others have sweet fruit. in this group, the gene for the fr
juin [17]

Correct option(s):

(b) This muskmelon plant's genotype for the fruit taste gene is ff.

(c) This muskmelon plant is homozygous for the fruit taste gene.

A dominant allele is one that is capable of expressing itself even in the heterozygous condition and overshadows the effect of the recessive allele. It is usually denoted by a capital letter. Recessive allele on the contrary cannot express in presence of a dominant allele and is denoted by a small letter.

In the given case the fruit with a sour taste (phenotype) can have two possible genotypes (FF and Ff). The genotype of sweet taste is ff which is a homozygous condition.  

Note: Your question is incomplete, probably your complete question is “In a group of muskmelon plants, some individuals have sour fruit and others have sweet fruit. in this group, the gene for the fruit taste trait has two alleles. the allele F is for sour fruit, and the allele f is for sweet fruit. a certain muskmelon plant from this group has sweet fruit. this plant has two alleles for sweet fruit. Choose the correct option:

(a)  this muskmelon plant's genotype for the fruit taste trait is sweet fruit.

(b) this muskmelon plant's genotype for the fruit taste gene is ff.

(c) this muskmelon plant is homozygous for the fruit taste gene.”

Know more about Mendelian genetics here:

brainly.com/question/10189802

#SPJ4

7 0
2 years ago
Explain some use of chromosome?
Korolek [52]
<h3>Chromosomes are the thread-like structure found in the nuclei of both animal and plant cells. They are made of protein and one molecule of deoxyribonucleic acid (DNA). Organisms grow by undergoing cell division to produce new cells and replace older, wornout cells. During this cell division, DNA must remain intact and keep its even distributionthroughout the cells. Chromosomes are important to this process to ensure the DNA is accurately replicated.</h3>
4 0
3 years ago
Which of the following statements about the two strands of a DNA molecule is true?
zheka24 [161]
A T base on one strand always pairs with an A base on the other strand
8 0
3 years ago
The main reason that cells carry out cellular respiration is to
Ne4ueva [31]

Answer;

-To release or generate energy

Explanation;

-The main reason that cells carry out cellular respiration is to release or generate energy that drives cellular processes such as growth, and reproduction.

-Cellular respiration is the process by which animal and plant cells break down nutrients such as glucose to generate energy in the form of ATP, that is used to drive cellular processes such as growth, reproduction and transport among others.

4 0
3 years ago
Read 2 more answers
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