Which of the following is true about ecology? A.Ecology is a philosophy that seeks to limit harm to the natural world. B.Ecology is a practice that emphasizes preservation of life. C.Ecology is an area of study that focuses on interactions in nature. D.Ecology is a strategy for sustainable living.
C.Ecology is an area of study that focuses on interactions in nature.
ANSWERED AT 06/12/2019 - 04:02 PM
QUESTION POSTED AT 06/12/2019 - 04:02 PM
Magma's thickness and viscosity are affected by differences in the amount of
ANSWERED AT 06/12/2019 - 04:02 PM
QUESTION POSTED AT 06/12/2019 - 04:02 PM
Sometimes scientists make a mistake, or ___, and need to do the experiment again?
ANSWERED AT 06/12/2019 - 04:01 PM
QUESTION POSTED AT 06/12/2019 - 04:01 PM
Wind erosion occurs at a faster rate in deserts than in places with a thick layer of vegetation covering the ground. Why do you think that this is the case?
Answer:
The wind erosion is defined as the removal of soil particles from a particular area. This erosion mostly takes place in the region where there is less vegetation cover and less amount of rainfall. Presence of vegetation helps in controlling the rate of wind erosion as the plants acts as a barrier to the wind, thereby not allowing it to carry the soil particles with them. But absence of water and vegetation makes the soil dry and the wind removes these particles easily loosing the fertility of the soil.
The wind generally carry the materials by the method of suspension, in which the extremely lighter materials like silt and clay are transported from one place to another.
This is the reason why wind erosion is rapid in the desert areas compared to the places which are rich in thick vegetation cover.
ANSWERED AT 06/12/2019 - 03:50 PM
QUESTION POSTED AT 06/12/2019 - 03:50 PM
In which direction do the gravitational forces act between you and earth
ANSWERED AT 06/12/2019 - 03:40 PM
QUESTION POSTED AT 06/12/2019 - 03:40 PM
Identify the pancreas as the source gland for insulin, and describe the function of insulin in maintaining blood sugar levels.
ANSWERED AT 06/12/2019 - 03:33 PM
QUESTION POSTED AT 06/12/2019 - 03:33 PM
How many ribose molecules are found in ATP?
ANSWERED AT 06/12/2019 - 03:32 PM
QUESTION POSTED AT 06/12/2019 - 03:32 PM
If the upper atmosphere is very thin, why do space vehicles heat up as they enter the atmosphere
ANSWERED AT 06/12/2019 - 03:30 PM
QUESTION POSTED AT 06/12/2019 - 03:30 PM
The process in which an animal’s cells use oxygen and digested food molecules to release the energy in food is called a. Breathing b. cellular respiration c. diffusion d. gas exchange
Answer:
The correct answer would be b. cellular respiration.
Cellular respiration is defined as the set of metabolic reactions taking place in a cell in order to harness energy from food and convert it in the form of ATP (adenosine triphosphate).
It includes glycolysis, pyruvate decarboxylation, Krebs cycle, and oxidative phosphorylation (electron transport chain, and chemiosmosis).
It requires oxygen for complete oxidation of food (glucose) in order to produce ATP and release carbon dioxide as a byproduct.
The overall reaction can be written as:
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy (ATP)
ANSWERED AT 06/12/2019 - 03:28 PM
QUESTION POSTED AT 06/12/2019 - 03:28 PM
How can the student identify the catalyst
ANSWERED AT 06/12/2019 - 03:26 PM
QUESTION POSTED AT 06/12/2019 - 03:26 PM
Which consequence of global warming is described as having an increase in growing season, changes in migration, and loss of species? A.changing oceans B.melting ice C.affected human populations D.altered ecosystems
The correct answer is (d) altered ecosystem.
The increase in the global temperature all over the world due to the harmful effect of green house gases is called global warming. The consequences of global warming can be defined as having an increase in growing seasons, changes in migration and loss of species. All the consequences mentioned here signifies altered ecosystem. The ecosystem consists of the plant and animal species that interact with the environment. Hence, global warming results in altered ecosystem.
ANSWERED AT 06/12/2019 - 03:25 PM
QUESTION POSTED AT 06/12/2019 - 03:25 PM
Why was the reduction of the bison population to under 1,000 individuals a bottleneck event for the species? a. It drastically reduced the gene pool of the species. b. It reduced the territorial range available to the species. c. Foreign genes were introduced by crossbreeding with cattle. d. It reduced the prevalence of recessive traits.
b) The territorial range would be unchanged or, if anything, could grow (with reduced competition)
c) this would not be a bottleneck effect - or at least, this is not how we define it.
d) it reduced the number of genes for both dominant and recessive traits probably, so , not.
ANSWERED AT 06/12/2019 - 03:24 PM
QUESTION POSTED AT 06/12/2019 - 03:24 PM
Which of the following plant cell structures could not be seen when using the 10X objective of the compound microscope? A) Nucleus 2) Cell wall 3) Cytoplasm 4) Endoplasmic Reticulum
ER Golgi apparatus, because it packages proteins received from the ER cytoplasm
The Golgi body are the ones that slightly alter, organize and prepare so-called parcels to be delivered for all the organelles in the cell. They receive these packages mainly in the rough endoplasmic reticulum. These packages that set out by Golgi body are macromolecules that used and synthesized by cells in many operations. If ER is absent then it would only mean that Golgi body would have no use other than simply lysosomes but these macromolecules plays a dynamic role in many organelles –nutrients, ATP and cell metabolism. It'll have a ripple effect if ER is absent in the cell.
ANSWERED AT 06/12/2019 - 03:21 PM
QUESTION POSTED AT 06/12/2019 - 03:21 PM
True or false biology can help you learn more about your body
ANSWERED AT 06/12/2019 - 03:13 PM
QUESTION POSTED AT 06/12/2019 - 03:13 PM
Which one of the following interspecies relationships has a negative effect on both species?
Parasitism. There are several types of biotic relationships that is occurring every single moment in the ecosystem and one is parasitism. In this scenario with human beings and mosquitos, this phenomenon of interaction is distinguished as parasitism where mosquitos draws blood that contains nutrients from the human tissue to use it as its source of food and then leaves harmful substances and bacteria in the human’s blood stream.
ANSWERED AT 06/12/2019 - 03:11 PM
QUESTION POSTED AT 06/12/2019 - 03:11 PM
What does the word facilitated mean in facilitated diffusion?
ANSWERED AT 06/12/2019 - 03:09 PM
QUESTION POSTED AT 06/12/2019 - 03:09 PM
All cells are surrounded by a cell wall true or false
ANSWERED AT 06/12/2019 - 03:08 PM
QUESTION POSTED AT 06/12/2019 - 03:08 PM
Select all that apply. Micro-evolution _____. -refers to evolution at or below the species level - includes evolution at the population and community level - analyzes the history of life over time - refers to evolution above the species level - is based on direct observation
- includes evolution at the population and community level - YES!
- analyzes the history of life over time - well, I wouldn't choose this answer. life.. as in one life form or all life forms? it's not clear to me. In any case "microevolution" doesn't anlyse anything, it's a process of change...
- refers to evolution above the species level -NO! it would be rather evolution within the same species, on a very small level
- is based on direct observation - NO! it would rather be based on genetic analysis
ANSWERED AT 06/12/2019 - 03:01 PM
QUESTION POSTED AT 06/12/2019 - 03:01 PM
A membrane that allows only some materials to move in and out of the cell is
ANSWERED AT 06/12/2019 - 02:57 PM
QUESTION POSTED AT 06/12/2019 - 02:57 PM
What happens to E. coli when lactose is not present?
ANSWERED AT 06/12/2019 - 02:57 PM
QUESTION POSTED AT 06/12/2019 - 02:57 PM
Cures and medicines for diseases, such as diabetes, can be credited to the study of _____.
Answer:
Biology
Explanation:
Study of various organ systems including the endocrine system of human provided information about the role of insulin hormone in the regulation of blood sugar level. It elucidated the role of insulin in the development of diabetes.
Once information about the causes of the diabetes was obtained, the development of methods of its treatment became possible by targeting the regulation of normal insulin level in the body. This is how the study of biology helped in the development of treatment and medicines for disease such as diabetes.
ANSWERED AT 06/12/2019 - 02:55 PM
QUESTION POSTED AT 06/12/2019 - 02:55 PM
How to arrange from smallest to biggest organ,organism,gene,nucleus,cells,tissue,chromosome,system?
ANSWERED AT 06/12/2019 - 02:53 PM
QUESTION POSTED AT 06/12/2019 - 02:53 PM
Biology shows us the fossil record and comparative anatomies. Chemistry shows us that organic molecules can come from inorganic matter. Geology shows us that organisms that used to live together are found on separate continents due to continental drift. Which fields of science provide evidence for evolution? a.)biology only b.)biology and chemistry c.)biology and geology d.)biology, chemistry, and geology HEELLLLLP PPPLLLSSS
ANSWERED AT 06/12/2019 - 02:53 PM
QUESTION POSTED AT 06/12/2019 - 02:53 PM
Most stars are at what point in their life cycles? a. supergiant c. main sequence b. giant d. white dwarf
Answer: c. main sequence
The nuclear fusion reaction is the natural process which occurs in the stars which is responsible for their development. The size of the star changes at different stages of their life. A cloud, dust and gas combine to form nebula which is the initial stage of star formation. The star undergoes multiple nuclear fusion reactions with the surrounding heavy compounds like helium, carbon dioxide and hydrogen to attain a stable form. The main sequence is the stable form of star and it takes million's of years to attain this form. Most of the stars in the galaxy are in the main sequence.
ANSWERED AT 06/12/2019 - 02:48 PM
QUESTION POSTED AT 06/12/2019 - 02:48 PM
How does the cell theory describe the levels of organization of living organisms?
ANSWERED AT 06/12/2019 - 02:44 PM
QUESTION POSTED AT 06/12/2019 - 02:44 PM
In which type of reproduction can cells divide through the process of mitosis ?
ANSWERED AT 06/12/2019 - 02:43 PM
QUESTION POSTED AT 06/12/2019 - 02:43 PM
Lactase and carbonic anhydrase are examples of what type of substance?
ANSWERED AT 06/12/2019 - 02:36 PM
QUESTION POSTED AT 06/12/2019 - 02:36 PM
A slow reproduction process is a disadvantage of which form of reproduction
Life processes then includes.
1. Reproduction, is as vital for an entire race to survive. It prolongs their generation onwards and offspring to the next centuries to pass by.
2. Obtaining energy. In both humans and animals, even plants is a challenge because these creatures need to work in order to obtain these need resource from food –preys.
3. Maintaining structure. For the living organisms to still exist they need to keep themselves intact. Combating diseases and having nutrition. This is a by-product of having energy.
4. Irritability. Responding to stimulus
5. Excretion. Able to dispose waste
6. Movement. Being able to be in one place to another.
7. Growth. Able to develop.
8. Death.
ANSWERED AT 06/12/2019 - 02:30 PM
QUESTION POSTED AT 06/12/2019 - 02:30 PM
A solution that is a 4 on the pH scale is a _____.
hence this solution is acidic.
ANSWERED AT 06/12/2019 - 02:16 PM
QUESTION POSTED AT 06/12/2019 - 02:16 PM
A relationship where one organism lives in or on another organism for the purpose of getting energy
an example is human (host) and tapeworm (parasite)
ANSWERED AT 06/12/2019 - 02:15 PM
QUESTION POSTED AT 06/12/2019 - 02:15 PM