Answer No 1:
The correct option is c) Both mitochondria and chloroplast contain DNA that is different from the nucleus.
Explanation:
The theory of endosymbiosis proposes that all the eukaryotic organisms have arisen from prokaryotes. This theory proposes that organelles such as DNA and nucleus were once prokaryotic cells. These smaller prokaryotic cells were engulfed by the larger prokaryotes which gave rise to eukaryotes eventually. These organelles possess their own DNA which is different from the DNA of the nucleus.
Answer No 2:
The correct option is C) aerobic organisms
Explanation:
The scientists propose that the initial conditions of the Earth were not favourable for supporting aerobic life. Scientists propose that photosynthetic organisms like cyanobacteria released oxygen into the environment which made the life of aerobic organisms possible on Earth.
Answer No 3:
The correct option is A) It proved the theory of spontaneous generation.
Explanation:
Spontaneous generation can be described as the generation of life from non-living things. Some scientists proposed that living organisms are formed by non-living things.
You would avoid the following:
-An Advertisement
-A TV Show
-A Magazine
Answer:
Option (D).
Explanation:
Steroid hormones are derived from lipids. Testosterone and estrogen are the steroid hormones. These hormones can directly diffuse into the plasma membrane.
Steroid hormones after diffusing into the cell, binds with its receptor present in the cytoplasm. Hormone with its receptor enters inside the nucleus and results in the gene transcription.
Thus, the correct answer is option (D).
A parasagittal plane passes
through the breast, hip, and knee on only one side of the body.
Not including the median plane passing through the midline, the parasagittal plane is situated alongside or parallel to the sagittal plane. Because <span>viewing is achieved along the sagittal axis, such
a section is often referred to simply as a "sagittal" view.</span>
(a) 0.6 because working out the probability
i dont think i actually helped XD