The advantage of growing genetically engineered BT crops are increased crop yields, reduced pesticide use, less environmental damage, less fungal contamination and reduced labor.
Explanation:
Bt is a soil bacterium whose genome contains genes for several proteins toxic to insects. When it is sprayed on the surface of crops, Bt toxins breakdown quickly when exposed to ultraviolet light, and also wash them in a strong rain.
They offers environmental and economic benefits to farmers with increased crop yields, reduced pesticide use, less environmental damage, less fundamental contamination, and reduced labor.
Thus the advantages of growing genetically engineered Bt crops over spraying Bt on the crops include lower production cost,less pest problems, and better yields.
The organisms which appeared on earth first was bacteria.
<u>Explanation:</u>
- The first-ever living organism on Earth was a bacteria known as cyanobacteria. It is believed by scientists that it first formed around 3 billion years ago.
- When the Earth was first formed, it was inhospitable for a long time until 3.8 billion years ago approximately, the core cooled down and the level of oxygen had risen. This, along with photosynthesis resulted in the formation of Cyanobacteria.
- These organisms were capable of carrying out the process of photosynthesis by which they prepared their food. These were known as common ancestors. All the living organisms thereafter are known to be their descendants.
Answer:
Some political scientists need a background in marine science so they can understand marine life and can make policies in an attempt to regulate human behavior to protect the ocean and ocean life. Marine scientists must be able to understand the diverse life in the ocean
Explanation:
BRAINLIESTTTT PLZ
When an ophthalmologist uses an ophthalmoscope to look into your eye he sees the following view of the retina
In the center of the retina is the optic nerve, a circular to oval white area measuring about 2 x 1.5 mm across. From the center of the optic nerve radiates the major blood vessels of the retina. Approximately 17 degrees (4.5-5 mm), or two and half disc diameters to the left of the disc, can be seen the slightly oval-shaped, blood vessel-free reddish spot, the fovea, which is at the center of the area known as the macula by ophthalmologists.
In astrophysics, the mass–luminosity relation is an equation giving the relationship between a star's mass and its luminosity, first noted by Jakob Karl Ernst Halm.[1] The relationship is represented by the equation:
L
L
⊙
=
(
M
M
⊙
)
a
{\frac {L}{L_{{\odot }}}}=\left({\frac {M}{M_{{\odot }}}}\right)^{a}
where L⊙ and M⊙ are the luminosity and mass of the Sun and 1