All of the above are true.
A is correct, because, well. We can’t see atoms directly, at least not with our current levels of technology.
B is correct because a model is a representation of something by nature.
C is correct because our knowledge of the atom is still growing, and as we still don’t know about some future atomic developments, it’s called a model so that there’s still flexible room for new discoveries.
Hope this helps!
B)The respiratory system brings in carbon dioxide so the circulatory system can transport it throughout the body.
C)The circulatory system transports nutrients and oxygen brought in by the respiratory system throughout the body.
D)The circulatory system removes oxygen and other nutrients from the body to make room for carbon dioxide in the respiratory system.
(True or False question)
The given statement is True.
The rain shadow can be defined as a dry area which is found on the leeward side of the mountain area. The presence of these mountains acts as blockage in the passage of rain causing weather and forms a shadow of dryness on the other side of the mountain. The land on leeward side of a mountain range is drier on the lee and wetter on the prevailing windward.
Answer:
Groundwater protection must be a high priority in zones where contamination can easily enter the aquifer and affect a spring or pumping well used for the drinking water supply of a large population.
Explanation:
Groundwater protection has been addressed in most countries by issuance of different rules and regulations at national or local level that aim at preventing aquifer contamination. In this sense, laws have been issued to regulate the use and manufacture of toxic products, and set measures to manage the waste produced by industrial activities, and to properly place and maintain waste disposal and storage facilities (landfills, injection wells, storage tanks). Maximum allowable concentrations for some pollutants have been established, mainly in developed countries, to preserve a good quality of the groundwater exploited for drinking water supply. In addition, well-head protection areas and groundwater zone protection areas have also been defined in some developed countries to prevent pollution of drinking water sources.
Answer:
2 one
Explanation:
B) Successive generations have shorter life spans.
C) No new genes are added to the future generations.
D) Undesired traits are introduced into future generations.
B. A gene is one of two or more variants of allele. An allele is a section of chromosome that usually contains the code for a particular protein.
C. An allele is one of two or more variants of a gene. A gene is a section of chromosome that usually contains the code for a particular protein.
D. A gene is a section of an allele. An allele is a section of DNA at usually contains the code for a specific protein that determines a specific trait. I need an answer as soon as possible thanks in advance