The position of coal deposits.
Which organism is it?
Answer:
i would number one
Explanation:
Eukarya, Archaea, and Eubacteria constitute the three major branches of living organisms (excluding viruses). Eukaryotes are organisms consisting of one or more eukaryotic cells, the most distinctive feature of which is the presence of a membrane-bound nucleus containing the cell's genetic information.
hope this helps
1. In a DNA molecule, T pairs with ___
A
C
G
2. There are different bases of
DNA.
2
4
6
8
3. In a DNA molecule, pairs with
А
G
T
Answer:
1- A
2- 4
3- A with T
G with C
T with A
Explanation:
The nucleic acid is made up of five major nitrogenous bases. These nitrogenous bases are adenine (A), guanine (G), thymine (T), and cytosine (C). Adenine is always paired with thymine, and guanine is always paired with cytosine. These are known as base pairs. Uracil is only present in RNA, by replacing thymine.
Which type of the media is used to grow Prevotella melaninogenica?
(a) Complex media
(b) Selective & Differential media
(c) Nutrient agar
(d) Reducing media
Most prokaryotes have a single ______ molecule found in the cells cytoplasm. This large DNA molecule is typically referred to as the cells _________.
Answer:
most prokaryotes have a single double stranded circular DNA
the cell's nucleoid
cell division occurs once mitosis ,meiosis, or both
Answer:
Mitosis
Explanation:
Answer:
Mitosis.
Explanation:
A question a critical reader might ask is
When was this text published?
b. Why did the author write this text?
a.
C.
How old is the author?
None of these
d.
The answer is B!
Answer:
b. is the answer ..... btw hope you have a great fay
The Earth's magnetosphere is created by: A. a fusion in Earth's core
B. spinning in the Earth's core
C. gravity in the Earth's core
D. too much heat in the Earth's core
Answer:

solar wind
The magnetosphere is the region of space surrounding Earth where the dominant magnetic field is the magnetic field of Earth, rather than the magnetic field of interplanetary space. The magnetosphere is formed by the interaction of the solar wind with Earth's magnetic field.
Which of the following is a density-dependent factor?
a. food availability
b. volcanic eruptions
c. cold weather
Answer:
a) food availability
Density-dependent factors have varying impacts according to population size. Different species populations in the same ecosystem will be affected differently. Factors include food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size.
This man took the evolution work of Darwin and applied it to human cultures, arguing that just like species, some cultures are better adapted to the world than others (that is, they are more successful at extracting resources and providing for their offspring), and for this reason, those more successful cultures are superior.
a) Herbert Spencer
b) Franz Boas
c) E. B. Tylor
d) Lewis Henry Morgan
Answer:
A
Explanation:
A
Franz Boas took the evolution work of Darwin and applied it to human cultures (Option b).
Franz U. Boas was an anthropologist and who has been considered as the "Father of American Anthropology".F. Boas is known due to the theory of cultural relativism, which states cultures are essentially similar.Boas work's is in consonance with Darwin's ideas of natural selection and evolution.In conclusion, Franz Boas took the evolution work of Darwin and applied it to human cultures (Option b).
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There is a zombie apocalypse but the zombies only eat people with brown eyes . What do you think would happen to the percentage of people with brown eyes in the population after 10 years? After 100 years ?
Answer: The population of brown eyed would decrease
Explanation:
It would decree over time due to the zombies
Question 17
Identify the organelle by its function
Creates ATP (energy) and known as the powerhouse of the cell.
Rank the 9 body systems from most important to least important I need someone else’s opinion for this assessment (:
Use as the following
(Urinary System)
(Respiratory System)
(Musculoskeletal System)
(Circulatory System)
(Digestive System)
(Nervous System)
(Endocrine System)
(Reproductive System)
(Integumentary System)
(I’ll give points + brainalist for the correct answers)
Answer:answer in explanation
Explanation:They are the integumentary, skeletal, muscular, nervous, endocrine, cardiovascular, lymphatic, respiratory, digestive, urinary, and reproductive systems.
Large molecules that are built from repeating smaller molecules called
(Insert first answer) are called (insert second answer)
Answer:
The first answer would be a polymer and the second answer would be a monomer.
What kind of neurons are sending messages from the brains to legs ordering them to dance ?
Answer:
motor neurons
Explanation:
( i believe ,, correct me if i am wrong )
the sensory neurons collect stimuli from your surroundings or they send messages to the relay neurons ,, and therefore causes the motor neurons to act on the command to move a certain body part .
need the answer asap!!
Answer:
Cell division, as this includes meiosis and mitosis, which are types of asexual reprodcution
Explanation:
Drag the tiles to the correct boxes to complete the pairs.
Match the characteristics with the phylum.
water vascular system
tentacles with stinging cells
molting for growth
the presence of mantle
Arthropoda
Cnidaria
Molluska
Echinodermata
Answer:
Water vascular system = Echinodermata
Tentacles with stinging cells= Cnidaria
Molting for growth= Arthropoda
Presence of mantle= Molluska
Explanation:
which part of Earth is not influenced by energy from the sun?
Answer: Mantle
Explanation:
Proteins work as buffers to prevent acidosis
O
O False
Answer: ima say its true
Explanation: Several substances serve as buffers in the body, including cell and plasma proteins, hemoglobin, phosphates, bicarbonate ions, and carbonic acid. ... The respiratory and renal systems also play major roles in acid-base homeostasis by removing CO2 and hydrogen ions, respectively, from the body.
which pair of terms describes studies that give specific information about movement, behavior, and composition of ancient species?
a. trace fossils and original material
b. camouflage and mimicry
c. mold and cast
d. embryology and comparative anatomy
Answer: A because before used to be fossils.
Not shure just double check but from my side its A
Explanation:
As car 1 hits car 2 what happens next?
Answer:
c
Explanation:
The Kuiper Belt holds most of the solar system's_______.
A.moons B.dwarf planets
C.comets
D.planets
Answer:
B. dwarf planets
Explanation:
Trust
which of tge following is true about Earth's temperatures?
Answer:
Water vapor and clouds are the major contributors to Earth's greenhouse effect
Explanation:
a student studying the amount of soil erosion due to heavey rainfall in an area with many hills and valleys.in which of these locations in the area will the student most likely find the greatest amount of soil erosion
A.the hillsides
B.flowing water
C:a densely city in a valley, because removal of grass an trees to build structures leaves soil exposed to the flower water
D. A hillside where the trees have been cut down for lumber because there are fewer plants to slow the flow of water down the hillside
Answer:
B
Explanation:
Because flowing water causes erosion the fastest
Which of the following would increase the rate of an enzyme-catalyzed reaction? *25 points!!!*
a) Increase the concentration of inhibitors present in the reaction.
b) Decrease the concentration of cofactors present in the reaction.
c) Increase the substrate concentration and increase the enzyme concentration.
d) Decrease the substrate concentration and decrease the enzyme concentration.
Answer:
c) Increase the substrate concentration and increase the enzyme concentration.
An increase in substrate concentration favors to an increase in the rate of an enzyme catalyzed reaction. Thus, the correct option is C.
What are enzymes?The enzymes is defined as the protein which act as biological catalyst and speeds up the rate of a specific chemical reaction in the cell. The enzyme is not destroyed during the reaction and is used over and over.
As the enzyme molecules become saturated with substrate, this leads to increase in reaction rate levels off. As soon as the catalytic site is empty, more substrate is available to bind and undergo reaction.
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How does DNA analysis help scientists better understand evolution? (1 point)
O It spells out the amino acids that make up an organism.
o It shows us what codons an organism has.
o It helps chart changes in amino acid sequences over time.
O It shows us an organism's genome sequence.
Answer: i would say number one
Explanation: DNA and the genetic code reflect the shared ancestry of life. DNA comparisons can show how related species are. Biogeography. The global distribution of organisms and the unique features of island species reflect evolution and geological change
hope this help
Answer:
It helps chart changes in amino acid sequences over time.
Explanation:
I took the qc
Submit your project researching some environmental problems caused by the agriculture and natural resource industry. Be sure your
essay includes the following:
• the name of the article, author, and publisher or site owner;
• a description of the problem;
• a discussion of how it relates to agriculture or natural resources;
• a discussion of potential solutions to the problem; and
• a discussion of your own ideas on the causes of and solutions for the problem.
Ok
Answer:
this is what i put, i tried my best and im sorry its not the greatest but maybe it can help some of you out and give you some ideas.
Agriculture is the leading source of pollution in many countries. Pesticides, fertilizers, and other toxic farm chemicals can poison fresh water, marine ecosystems, air, and soil. They also can remain in the environment for generations.
What are the major environmental problems caused by agriculture?Agriculture contributes to a number larger of environmental problems that cause environmental degradation including climate change, deforestation, biodiversity loss, dead zones, genetic engineering, irrigation problems, pollutants, soil degradation, and waste.
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Fossil fuels began to be used, which led to increased pollution, and the construction of factories led to the loss of habitat for many wild animals. The development of agriculture has led to the emergence of new plant varieties, domestication of animals, and disturbance of soil composition.
Therefore, some of the environmental problems caused by the agriculture and natural resource industry are well described above.
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describe the three general methods used by ecologists to study organisms
Answer: The three main research methods used are observation, modeling, and experimentation.
Explanation:
Observation:
Every experiment requires observation. Ecologists must observe the environment, the species within it, and how those species interact, grow and change. Different research projects different types of assessments and observations.
Ecologists sometimes use a desk-based assessment, or DBA, to collect and summarize information about specific areas of interest. In this scenario, ecologists are using information already collected from other sources.
Oftentimes, however, ecologists rely on observation and fieldwork. This entails going into the habitat of the subject of interest to observe it in its natural state. By doing field surveys, ecologists can track the population growth of species, observe community ecology in action and study the impact of any new species or other introduced phenomena in the environment.
Each field site will differ in nature, shape, or other ways. Ecological methods allow for such differences so that different tools can be used for observations and sampling. It is crucial that sampling be done randomly to combat bias.
Modeling:
Ecological methods rely heavily on statistical and mathematical models. These provide ecologists with a way to predict how an ecosystem will change over time and react to changing conditions in a system.
Modeling also provides another way to decipher ecological information when fieldwork is not practical. There are several drawbacks to relying solely on fieldwork. Because of the typically large scale of fieldwork, it is not possible to replicate experiments exactly. Sometimes even the lifespan of organisms is a rate-limiting factor for fieldwork. Other challenges include time, labor, and space.
Modeling provides a method in which to streamline information more efficiently.
Examples of modeling include equations, simulations, graphs, and statistical analyses. Ecologists use modeling for producing helpful maps as well. Modeling allows for calculations of data to fill in gaps from sampling. Without modeling, ecologists would be hampered by the sheer amount of data that needs to be analyzed and communicated. Computer modeling allows for comparatively rapid analysis of data.
A simulation model, for example, enables the description of systems that would otherwise be extremely difficult and too complex for traditional calculus. Modeling allows scientists to study coexistence, population dynamics, and many other aspects of ecology. Modeling can help predict patterns for crucial planning purposes, such as for climate change.
Humanity’s impact on the environment will continue. It, therefore, becomes ever more crucial for ecologists to use ecological research methods to find ways to mitigate the effects on the environment.
Experimentation:
The overarching purpose of ecological methods for research is to get high-quality data. Experiments must be carefully planned.
Hypothesis: The first step in any experimental design is to come up with a hypothesis or scientific question. Then, researchers can come up with a detailed plan.
Factors that affect fieldwork experiments include the size and shape of an area that needs to be sampled. Field site sizes range from small to very large, depending on what ecological communities are being studied. Experiments in animal ecology must take into account the potential movement and size of animals.
For example, spiders would not require a large field site for study. The same would be true when studying soil chemistry or soil invertebrates. You could use a size of 15 meters by 15 meters.
Herbaceous plants and small mammals might require field sites of up to 30 square meters. Trees and birds might need a couple of hectares. If you are studying large, mobile animals, such as deer or bears, this could mean needing a quite large area of several hectares.
Deciding upon the number of sites is also crucial. Some field studies might require only one site. But if two or more habitats are included in the study, two or more field sites are necessary.
Tools: Tools used for field sites include transects, sampling plots, plotless sampling, the point method, the transect-intercept method, and the point-quarter method. The goal is to get unbiased samples of a high-enough quantity that statistical analyses will be sounder. Recording information on field data sheets aids in the data collection.
A well-designed ecological experiment will have a clear statement of purpose or question. Researchers should take extraordinary care to remove bias by providing both replication and randomization. Knowledge of the species being studied as well as the organisms within them is paramount.
Results: Upon completion, collected ecological data should be analyzed with a computer. There are three types of ecological experiments that can be made: manipulative, natural, and observational.
Hope This Helps!
The 3 general methods used by ecologists to study organisms include:
ObservationModellingExperimentationObservation involves observing organisms in their natural habitats or environments and then recording the findings. It is usually done by field surveying.
The different species living in an environment, how they interact with each other and other abiotic components of the environment are some of the observations taking during field surveys. The growth of individual species, the effects of introducing new species, their adaptations and other areas of community or ecosystem ecology can be studied through observation.
Modelling requires a simulation of real-life ecological processes through different manipulations. This could be done in the laboratory, on the field, or even on the computer. Computer modelling requires that data from observation or experimentation are supplied as input and the inputs are subject to mathematical maneuvering.
With models, complex ecological processes can be simulated and analyzed and extrapolated to deduce how things might happen in real life ecological interactions.
Experimentation involves setting up experiments following the scientific method. It can be a observational or controlled experiments.
Observational experiments requires studying organisms, populations, communities, or ecosystems through pure observation without changing or manipulating any variable.
Controlled experiments requires that variables are introduced and manipulated in some groups while some groups serve as the baseline without any manipulated variables.
Data are obtained from experiments and these are analyzed in relevant ways to support or reject hypotheses.
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best answer for the question
2. Which of the following DNA extraction methods involves a commercially available styrene polymer resin that binds metal ions
O A. Organic extraction
OB. EDTA extraction
OC. Chelex extraction
O D. Phenol-chloroform extraction
Answer:
The correct answer is - C. Chelex extraction.
Explanation:
Chelex extraction is a DNA extraction method that involves a Chelex100 chelating resin that prevents DNA degradation by traping the degradative enzymes and from potential contaminants.
In absence of this Chelex resin, a styrene polymer resin that binds metal ions that might inhibit downstream analyses. This process involves a commercially used Chelex 100 which is a styrene-divinylbenzene copolymer that has paired iminodiacetate ions, which act as chelating groups in binds metal ions.
4. In a prairie ecosystem, nitrogen and other matter builds up in animal
wastes. Which organisms return this matter to the ecosystem by
breaking down wastes?
Answer:
Fungi, insects, and earthworms
Explanation:
They decompose wastes, returning nitrogen back to the ecosystem.
PLEASE ANSWER ASAP
What do you notice about the anti parallel strands?
Answer:
Antiparallel: A term applied to two molecules that are side by side but run in opposite directions. The two strands of DNA are antiparallel. The head of one strand is always laid against the tail of the other strand of DNA