White fat cells secrete many proteins acting as adipokines such as resistin, adiponectin, leptin and apelin. An average human adult has 30 billion fat cells with a weight of 30 lbs or 13.5 kg.
Cells are made up smaller units called organelles that undertake various critical roles in the activities of the cell. Some of these organelles include, mitochondria whose major function is formation and production of energy in the form of ATP, Ribosome is an organelle involved in the protein synthesis, lysosome is involved in the destruction of old and worn out tissues and organelles, Golgi apparatus or complex helps in transportation, modification and packaging of secretions such as proteins and lipids. Therefore, alcoholism affects the activity of lysosomes in the liver since they are tasked in the digestion of proteins using hydrolytic enzymes.
Answer:
(E) seedless vascular plant
Explanation:
Seedless vascular plants, compared to some other kinds of plants, reproduce and disperse through unicellular spores instead of seed. They possess vascular tissues but do not possess seed or flower.
The life cycle of the seedless vascular plant is characterized by alternation between the diploid sporophyte and haploid gametophyte. The haploid gametophyte is small, but still independent while the diploid sporophyte is is large and long- lived, it is the dominant phase of the life cycle.
Examples of seedless vascular plants are horsetails and ferns
In A, stronger may not be the good word, but if a species needs to get stronger to survive then it will get stronger through natural selection.
B This in my opinion is true because the species will always adapt to what traits it needs to survive and this ties in with D becuase D is very similar
C causes changes in population in my opinion is the least likely to be true, this is because natural selection only effects offspring and not current population, which is why I would consider this one to be false.
To be honest I'm not sure this is a very tough question and is worded strangely. I would choose C or A, I would suggest getting a second source
