QUESTION 11 Eutrophication excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen. O True False DEC 29 16 atv MacBook Air 08 F3 F4 F7 F10 $ & 2 3 4 5 6 8 9 W E R Y P G H K

Q: Juestion 30 Lichens are a mutualistic relationship between fungi growing on rocks and trees that are…

A: Similar to all fungi, the need of a lichen fungi is carbon which is their main food source. Their…

Q: UESTION 8 An organism's DNA guides growth, reproduction, a. Development

A: Reproduction is a biological process by which an organism produces its own offspring. It is of two…

Q: By developing vascular tissue, plants gained the ability to reproduce using flowers the ability to…

A: The correct option is 3rd i.e. the ability to grow taller.

Q: It can take 400 to 1,000 years to break down ____ that end up in landfills or the ocean.   a.…

A: Landfills refer to the dumping ground or garbage dump. It is the site where waste material is…

Q: QUESTION 29 Every amino acid is a miniature buffer due to the 2 functional groups found in every one…

A: TRUE,COOH, and NH2 are the 2 functional groups present in all amino acids.

Q: It is likely that the first organisms on Earth were heterotrophs that obtained energy through animno…

A: The first organic molecules formed about 4 billion years ago. This may have happened when lightning…

Q: MULTIPLE CHOICE Question 8 Which of the following is a TRUE statement about the rock cycle? Audio…

A: Earth is made of three major layers. The innermost layer is an iron - rich solid core.The second…

Q: Question 1 Nf - Ni x 2n Nf- final # of microbes Ni initial # of microbes n-(total growth time) /…

A: Bacteria, single cell prokaryotes usually reproduces through the cell division. Most of the bacteria…

Q: QUESTION 2 2.1 10-C The figures below shows two leaves from the same plant B A (12) 2.1.1 Suggest…

A: Key references:Brestic, M., Zivcak, M., Vysoka, D. M., Barboricova, M., Gasparovic, K., Yang, X.,…

Q: QUESTION 3 All of the following are examples of decomposers or detritivores EXCEPT: - Athyrium…

A: Examples of deecomposers or detritivores are the :-

Q: QUESTION 17 The only thing that allows mobility in living things is contractile proteins (with the…

A: (17)  Contractile proteins help the sliding of muscle fibers and thus make movement possible.  The…

Q: On Earth the equator regions are warmer than the north and south poles because the polar atmosphere…

A: An equator is a imaginary line around the middle of earth or any spherical object like planet, star,…

Q: Today, forests in the United States (including tree plantations) cover more area than they did in…

A: Biodiversity is diversity of various living organisms on the planet that it contains different types…

Q: One problem that threatens aquatic biodiversity is the deliberate or accidental introduction of ____…

A: The variety of life and the habitats that make up the world's freshwater, tidal, and marine regions…

Q: protecting marine biodiversity is difficult is that ____.   a. most of the world’s ocean area lies…

A: Aquatic biodiversity is referred to as the constitution of animals and plants in the salt and fresh…

Q: Which of the following will increase frequency of cell-cell interactions, that are also important…

A: Cell-cell interaction is essential for the growth, development, and regulation of cellular…

Q: The primary forest ecosystem of the east coast of North America was and thought to be wiped out due…

A: The forest ecosystem includes a wide range of species and a rich level of vegetation that has a rich…

Q: Coral bleaching occurs ____.   a. when excessive runoff allows household bleach to enter coral…

A: We all know that corals have one of the most vibrant colors in the world. The phenomenon of coral…

Q: In terms of net primary productivity, where are the most productive ecosystems found? nearer the…

A: Net Primary Productivity (NPP) is explained as the rate of storing energy in plants, or it is…

Q: A species of salmon grows for several years before becoming sexually mature. It mates, reproduces,…

A: There are two reproductive strategies seen in living organisms. They are semelparity and…

Q: During the vascular phase the endothelial cells become sticky and constrict. True False

A: The vascular phase is a stage in the inflammatory response to tissue injury or infection. It is the…

Q: QUESTION 19 Heme iron is found in: A. dried fruits and nuts OB. meat and poultry OC. milk and cheese…

A: Iron is needed for the development and growth of the body. Iron is used in the making of hemoglobin…

Q: Svalbard Global Seed Bank is a long-term storage facility to preserve crop seeds all of the above…

A: all the above is the answer. Svalbard global seed bank stores seeds of all crops collected across…

Q: A given enzyme can work in a wide range of temperature and pH, and on a wide range of substrates.

A: Enzymes are biological catalysts that speed up chemical reactions in living organisms and they are…

Q: Using

A: Introduction:-  a. carcinogens : Carcinogens are substances, organisms, or agents that can cause…

Q: ▶ Question 10 1 12 3 07 O 11 2n 11 10 6 8 and/or 8 7 In the figure above, which number represents…

A: Introduction: Gymnosperm flowers produce the pollen through the microsporangia of a male cone,…

Q: QUESTION 20 When cells growth to a point where they cover the flask surface, this condition is…

A: Cells can easily be cultured a lab using different nutrient media and optimising conditions of…

Q: the ability to move as a group. O b. increased competition for food. O c. the formation of a…

A: Biofilm is a complex structure of microorganisms having different bacterial colonies or single type…

Q: Question 7 Over use of antibiotics used as growth promoters in animal feeds m. O decrease milk…

A: Antibiotics are substances that are produced by microbes to kill or stop the growth of other…

Q: The Peruvian anchovy fishery occurs a highly productive region with coastal upwelling. Why is this…

A: In a food web, this is an indicator of the effectiveness of energy exchange among trophic levels. It…

Q: Question 29 All of the following are advantages of plants moving to land EXCEPT oxygen availability…

A: The evolution of plants is very much important because they are the phototrophic organisms that can…

Q: QUESTION

A: Introduction:- Climate change,and the loss of sea ice habitat,is the greatest threat to Polar bears.

Q: Question 42 Carnivorous plants often live in acidic soils where O a. phosphorus O b. sulfur O c.…

A: Introduction :- Carnivorous plants obtain some or all of their nutrition by catching and consuming…

Q: question 40  lf a cell is increased to 1000 cells, how many generations in this process? A 100. B…

A: The cell division process causes "significant alterations in both plant and animal cells." For…

Q: Plant cells carry out photosynthesis to produce all of their ATP whereas animal cells carry out…

A: During photosynthesis, plant capture light energy for ATP production. This ATP is used up in…

Q: Which microbes perform nitrogen fixation by synthesizing O cyanobacteria, Rhizobium ; nitrogenase O…

A: Nitrogen fixation is a process by which molecular nitrogen that is present in the air is converted…

Q: Delta wetlands can help to protect human development from hurricanes because ____.   a. they…

A: Deltas are wetlands that form as rivers empty their water and sediment into another body of water,…

Q: luestion 25 Honey bees have a special type of communication to indicate to the other worker bee…

A: Honey bee also have pheromones to communicate with each other.

Environmental health and hazards

An organism's environment is the environment in which it lives and has an impact on its well-being. The World Health Organization (WHO) defines environmental health as "those aspects of public health, such as quality of life, that are influenced by physical, chemical, biological, social, and psychosocial components in the environment." Environmental health is concerned with both natural and man-made settings in order to enhance public health. Environmental science, occupational medicine, toxicology, and epidemiology are the key subdisciplines of environmental health.