Answer:
Loss of balance in biodiversity will have very dangerous impact on the life on earth. consequences for the sustainability of life on earth due to loss of balance in biodiversity are as follows:
- Food security will be reduced due to the extinction of species at several food chain level.
- Increase in disease carrying animals as due to loss of balance in biodiversity, animals will adapt to fragmented habitats.
- Frequent changes in weather.
- Livelihood of humans will be disturbed as ecosystem will not remain healthy.
- Natural disasters will increase and lead to loss of humans and other wildlife lifes.
The earth moves closer to the sun and we get summer. then when the earth moves further from the sun, we get winter.
Answer:
<em>Agrobacterium</em> <em>tumefaciens</em> is a gram negative bacteria that is responsible for tumor formation in the different parts of plant body.
Explanation:
It causes crown-gall disease in plant body by transferring it's DNA into the plant body which include Ti plasmid.
There are 3 types of bacteria that form tumor in different plant ares.
<em>Agrobacterium rhizogenes</em>,<em> Agrobacterium tumefaciens</em> strains contain either Ti or Ri plasmid but <em>Agrobacterium vitis</em> contain only Ti plasmid which are virulent.
The transfer of T-DNA takes place into the body of host cells and then the DNA is expressed into the body of the host and thus forming gall or tumor.
