All categories

3 years ago

1 Summarize why ozone was important in enabling organisms to live on land.

Biology

1 answer:

Lina20 [59]3 years ago

6 0

Answer:

The presence of ozone enabled organisms to develop and live on the land. Ozone played a significant role in the evolution of life on Earth, and allows life as we presently know it to exist. These atoms combined with remaining oxygen (O2) to form ozone (O3) molecules, which are very effective at absorbing UV rays which could be injurious to organism existence

Explanation:

You might be interested in

The National Park Service protects habitats such as the Florida Everglades. Which explanation states the importance of conservin

Anna [14]

The importance of conservation of habitats is that habitat conservation protects biodiversity in the region.

<h3>Conservation of habitats</h3>

Habitat can be defined as an environment that is made up of resources that are used by a particular organism.

There are different types of habitat which include:

aquatic habitat,

terrestrial habitat and

arboreal habitat.

These habitats needs to be conserved to maintain biodiversity which is an essential part of global food security.

Learn more about biodiversity here:

brainly.com/question/11542363

8 0

2 years ago

Read 2 more answers

Help please someone please

skelet666 [1.2K]

Answer:

mhkhku

Explanation:

bmvgf.

8 0

2 years ago

Describe the process of altering the genetic variation of a cell using a genetically modified virus for human gene therapy. In t

Len [333]

In human gene therapy, a genetically modified virus (a.k.a. a viral vector) can alter the genetic variation of a cell, but not all viral vectors do.

The process often begins with the delivery of or creation of a segment of viral double stranded DNA (containing the gene you want to introduce). Then typically an enzyme known as an integrase cuts the ends of the segment of viral DNA and also cuts open the cell's DNA. Then the viral DNA is integrated/ inserted into the cell's DNA. The connecting ends are ligated together and adjusted so that the nucleotide base pairs match up.

This in the future may affect the gene pool for instance if the viral DNA (your gene) was inserted in the middle of another gene or important regulatory sequence of the cell DNA, and this alteration may be passed on into offspring and become present in the gene pool, which could have bad effects.

The effects on the gene pool really depends on what the virus ends up doing. For example, it may fix the function of a damaged gene which is the goal, and allow for a working gene to be in the gene pool, which would be good. The problem with gene therapy is that it's difficult to predict 100% what the virus will do every time it is given to a patient.

But it's very important to consider that it will only affect the gene pool if the virus is able to enter and alter germ cells (reproductive cells). If the virus, enters somatic cells (regular body cells) this will not be passed on to future generations. So viruses can be designed to avoid germ cells and avoid this gene pool issue. Also, some viral vectors use viruses that do not integrate their DNA, the cells just express the viral DNA (create the desired protein from it) and over time the viral DNA is degraded/ lost which wouldn't pose this threat.

This is long, but I hope it helped!

3 0

3 years ago

_____ is the oldest possible age that members of a species can attain, whereas _____ is the number of years the average newborn

tankabanditka [31]

Maximum life span is the oldest possible age that members of a species can attain, whereas average life expectancy is the number of years the average newborn in a particular population group is likely to live.

Every living organisms pass through birth, growth, reproduction, old age, death. this period is called as life span.

<h3>What is death? </h3>

When all life activities are stopped in an individual organisms due to various reasons like ageing, disease, accidents, etc. it is called death.

Also some fully grown living organisms divides physically into two daughters, thus ending its independent existence.

<h3>What is living? </h3>

The objects with specific form and structure exhibits growth, development, reproduction, responsiveness and other unique characteristics of life. it is called living beings.

The living world is wonderful with wide range of living organisms. the earth is populated by various types of plants and animals.

Life is a complex organization of chemical molecules that express itself by chemical reactions leading to specific characteristics like cellular structure, growth, development, reproduction, adaptation, consciousness, death, etc.

Learn more about living here :

brainly.com/question/5836819

#SPJ4

3 0

2 years ago

Explain how the parts of a

vichka [17]

Answer: Meristems contribute to both primary (taller/longer) and secondary (wider) growth. Explanation: Primary growth is controlled by root apical meristems or shoot apical meristems, while secondary growth is controlled by the two lateral meristems, called the vascular cambium and the cork cambium.

Explanation:

8 0

3 years ago