Answer: Symbiogenesis
The process responsible for the evolution of mitochondria and chloroplasts in eukaryotes is Symbiogenesis or endosymbiotic theory.
This theory states<span> that </span>mitochondria and chloroplasts originated from bacteria entering a eukaryotic cell to form a symbiotic relationship.
Among the pieces of evidence supporting symbiogenesis are that new mitochondria and plastids are formed only through binary fission and the striking similarities between bacteria and these organelles<span><span /> (mitochondria and chloroplasts). Similarities include 1) They have their own DNA, which is separate from the DNA found in the nucleus of the cell. and 2) both organelles use their DNA to produce many proteins and enzymes required for their function</span>
Answer:
The brain has 3 major parts - cerebrum, cerebrum, brain stem. The brainstem is also divisible into three parts - medulla oblongata, pons, midbrain. The brain stem concerns with breathing, digestion, circulation.
The cerebrum is present between the cerebrum and midbrain. It carries motor information. It consists of the thalamus, hypothalamus. The hypothalamus function is the maintenance of homeostasis. The pituitary gland is present in the hypothalamus region.
The cerebrum has different lobes - frontal lobe, parietal lobe, occipital lobe, temporal lobe. These lobes are meant for sense i.e. vision, auditory, smell, and taste, etc.
The cerebrum is also divisible into the right and left hemispheres.
Answer:
Diffusion transport is responsible for oxygen entering blood cells because when the oxygen concentration in the alveoli in the lungs are too high it diffuses with the red blood cells by giving it oxygen and receiving carbon dioxide.
Explanation:
The answer is B
Here is a small experiment you can do to test this.
<span>
Put a pot of water on the stove and bring it to a boil. Take a dry lid and cover it for a minute, and lift the lid up. What happens?
What should happen is that the water droplets run down the lid and fall back into the pot.</span>
