Answer:All energy sources have some impact on our environment. Fossil fuels—coal, oil, and natural gas—do substantially more harm than renewable energy sources by most measures, including air and water pollution, damage to public health, wildlife and habitat loss, water use, land use, and global warming emissions.
Explanation:It becomes clear that for more than 45 percent of respondents, solar energy was the most environmentally friendly energy source. The energy generated by the wind was also a considered to be pro-environment by almost 24 percent of the respondents.
Answer:
D.
Explanation:
Totipotent cells can make any of the 220 cell types in an embryo, as well as the cells found in a placenta!
The correct answer is (a)
Chlorophyll is contained within the thylakoid membrane. Stroma is the space between the thylakoid membrane and the chloroplast membrane. The outer most part is the double membrane in which the whole chloroplast is housed. It is like the walls of the house.
Chloroplasts are surrounded by this double membrane and contain a third inner membrane which is the thylakoid membrane. This membrane forms long folds within the organelle. In electron micrographs, thylakoid membranes appear like stacks of coins.
The chlorophyll of the green algae is spread throughout the cytoplasm of its cells. This is true.
Here is why.
Chlorophyll is found in and around the photosystems embedded in the thylakoid membrane of the chloroplasts.
The chloroplasts are organelles found in eukaryotic algae. The chloroplasts in eukaryotic celss are contained in the cytoplasm together with other organelles.
Since the chlorophyll is insided the chloroplast which is inside the cytoplasm, it is safe to say that the chlorophyll of the green algae is spread throughout the cytoplasm of its cells.
The correct answer is C.
Amino acids consist of two different parts, the nitrogen-containing portion (NH2 group, dor the amino acid) and the carbon skeleton, containing the COOH, the acidic part. Two amino acids form bonds between their amino and acidic parts and form peptides that build up to proteins.
