in animal field studies, why do scientists usually try to work without making the animals aware that humans are present?
Answer:
In animal field studies, why do scientists usually try to work without making the animals aware that the humans are present? It is necessary to observe the animals without disturbing them. When a controlled experiment is not possible, why do scientists try to identify as many relevant variables as possible?
Explanation:
please mark me has a brainliest
Answer:
In animal field studies, why do scientists usually try to work without making the animals aware that the humans are present? It is necessary to observe the animals without disturbing them. When a controlled experiment is not possible, why do scientists try to identify as many relevant variables as possible?
Explanation:
please mark me brainly and have a great fantastic weekend
( a+b) ^2-a^2+b^2
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Answer:
ong bro thats what im sayin!!!!333
Explanation:
If the body is a city,
what would this be?
1.
Write any three features of fungi.
the scientific name of frog is Rana trigina. Is it correct?
Answer:
Yes,the scientific name of frog is Rana trigina.
Answer:
It is correct but it is also called Anura
I think it will help you
What are all living organisms on earth called
Answer:
The biosphere is the region of the earth that encompasses all living organisms
Hey there!
I believe the answer would be just organisms.
But if you were looking for what part of the Earth would living organisms live, it would be the Earth's biosphere.
Hope this helps!
Have a great day!
What distinguishes one atom from another?
a. the number of electrons in the outer shell
b. the number of protons in the outer shell
c. the number of neutrons in the outer shell
d. the number of protons in the nucleus
e. the number of electrons in the nucleus
f. the number neutrons in the nucleus
Answer:
D. the number of protons in the nucleus
True or false: If false, please make it a correct statement. A rancher uses a particular chicken for breeding purposes because, on average, she observed that the chicken laid more eggs than other chickens. The rancher selecting the desirable trait would be considered an example of natural selection.
False.
Correct statement: A rancher uses a particular chicken for breeding purposes because,on average,she observed that the chicken laid more eggs than other chickens. The rancher selecting the desirable trait would be considered an example of selective breeding.
Outline 4 differences between Mitosis and Meiosis?
Answer:
mitosis
Explanation:
correct
Qué es una fuente renovable de energía?
Answer:
Una fuente de energía renovable significa energía que es sostenible, algo que no se puede agotar o que es interminable, como el sol. ... Significa fuentes de energía que son alternativas a las fuentes no sostenibles más comúnmente utilizadas, como el carbón.
Enzyme is lock or Key?
How is water recycle in the water cycle?
Answer:
when water evaporate or travels through dirt it gets filtered
Explanation:
A shift inward of the production possibilities curve signifies that
Answer:
A shift inward of the production possibilities curve signifies that: C. The available production resources have decreased, so potential production levels will decrease.
Explanation:
A. The demand for the products has increased, so the supply will increase B. The available resources have increased, so potential production levels will increase
C. The available production resources have decreased, so potential production levels will decrease
D. The demand for the products has decreased so, the supply will decrease
In order to test the effects of a new drug, you isolate the messenger RNA molecules from both treated and untreated eukaryotic cells and separate them according to size using gel electrophoresis. In each lane of the gel, the shorter RNA molecules migrate more quickly through the gel and end up near the bottom of the gel while the longer RNAs migrate more slowly and remain near the top.
The samples that were loaded into each of the four lanes are as follows:
Lane 1: the primary RNA transcripts isolated from the nucleus of untreated cells
Lane 2: the primary RNA transcripts isolated from the nucleus of cells treated with the drug being tested
Lane 3: RNA isolated from the cytosol of untreated cells
Lane 4: RNA isolated from the cytosol of cells treated with the drug being tested
Which of the following conclusions is most likely to be CORRECT?
A. These results suggest that the drug affects RNA processing.
B. These results suggest that the drug digests DNA.
C. These results suggest that the drug inhibits DNA replication.
D. These results suggest that the drug contains a protease that targets this gene product.
E. These results suggest that the drug inhibits post-translational processing of this gene.
As an ecosystem goes through succession, which of the following is likely to
happen:
A. Increase in biodiversity
B. Ecosystem will trigger Secondary Succession
C. Decrease in competition
D. Decrease in niches
Answer:
A
Explanation:
succession is replacement of one ecosystem by another so this cause increase in biodiversity
When an ecosystem goes through succession, the biodiversity of the ecosystem tends to increase. Thus, the correct option is A.
What is Succession?Succession may be defined as the gradual and continuous replacement of one community by another community over a long period of time.
Succession is always taking place by a better competitor. The first arrived species is known as the Pioneer species. Intermediate species are known as seral communities, while the highest species is known as the Climax species.
Overall, it increases the biodiversity of the region.
Therefore, the correct option is A.
To learn more about Succession, refer to the link:
https://brainly.com/question/1824935
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How is active transport different
from facilitated diffusion?
A. Facilitated diffusion does not use protein
channels.
B. Active transport requires energy.
C. They are very similar processes.
Answer:
B
Explanation:
active transport requires energy (ATP) where as facilitated diffusion is a passive process meaning it doesn't require energy.
I hope this helps
Match the features plates with their corresponding plate boundaries.
Answer:
please see picture for answer
whats the difference between the lipid structure and the carbohydrate structure
Lipids are an important element of the cell membrane. The structure is usually composed of a glycerol backbone.
Carbohydrates, it's very literal: are “hydrates of carbon” and possess the general structure of C(n)H(2n)O(n).
Lipid molecules comprise more energy per gram than carbohydrates: close to two times as much.Carbohydrates are more readily ingested than lipids and discharge their energy more quickly. Monosaccharides and disaccharides are water-soluble and are less complicated to move to and from storage places than lipids.Animals manage to apply carbohydrates fundamentally for short-term energy storage, while lipids are applied more for long-term energy storage. Carbohydrates are stored as glycogen in creatures while lipids are stored as fats. In plants, carbohydrates are stored as cellulose and lipids as greases.Lipids have less impact on osmotic force inside a cell than complex carbohydrates.Cyanobacteria and blue green algae are commonly called as nitrogen fixers.
They increase the fertility of soil. How do these nitrogen fixers increase the
soil fertility?
(a) The produce nitrogen gas that is released into the surrounding.
(b) They convert nitrogen gas present in the surrounding into compost.
(c) The fix atmospheric nitrogen to make nitrogen compounds in the soil.
(d) They decompose remains of plants and animals to produce nitrogen
compounds.
the best anatomical term to describe the back region of the body would be
Ventral, gluteal, deep, or dorsal?
Hey there! I'm happy to help!
Ventral has to do with the front side of the body. The ventriloquism (controlling a puppet and talking without your lips without moving to give the illusion that the puppet is talking), it has to do with creating an illusion from the front side of your body. It comes from a Latin word that means "belly", so something like ventriloquism is "belly speaking". The ventricles of the heart are chambers that are closer to the belly. So, this is not referring to the back region of body and is incorrect.
Gluteal has to do with the gluteus maximus muscles. This is a specific section of the back region of the body and not the actual back region as a whole, so this is incorrect.
Deep just means that something is further inside your body (further from the skin). For example most of your bones are deep to your muscles. This is the incorrect answer.
You may have heard of a dorsal fin on a fish or shark. These fins are normally on the top of a fish. This is the same thing as being on their back because their bellies (ventral, front) are facing down. This term does apply to the back region of the body, so this is correct.
The best anatomical term to describe the back region of the body would be dorsal.
Have a wonderful day and keep on learning! :D
The brain stem consists of the ________. Group of answer choices midbrain, medulla, and pons cerebrum, pons, midbrain, and medulla midbrain only pons, medulla, cerebellum, and midbrain
Hey there! I'm happy to help!
The cerebellum is in the back of the brain and it helps with balance and reflexes, but it isn't part of the actual brain stem, so that is not the right answer choice.
The cerebrum is the front part of the brain made up of the many different lobes. Its ultimate goal is to help with thought, movement, and language. This is not part of the brain stem.
The brain stem consists of the midbrain, medulla, and pons. The midbrain is the uppermost part with the pons below it and the medulla oblongata below the pons.
The midbrain is important for functions such as eye and body movement. The pons aids with body signaling and the medulla oblongata also aids with reflexes and involuntary actions (as it is close to the cerebellum). The brain stem as a whole helps with respiration, heart rate, and blood pressure.
Have a wonderful day and keep on learning! :D
Questions:
1.
What is the goal of the Delta tunnels project?
Answer:
California Water Fix and Eco Restore, formerly known as the Bay Delta Conservation Plan, is a $15 billion plan proposed by Governor Jerry Brown and the California Department of Water Resources to build two large, four-story tall tunnels to carry fresh water from the Sacramento River under the Sacramento-San Joaquin
Explanation:
he plan, now called the Delta Conveyance Project, is an attempt to shore up the reliability of critically needed water deliveries to the south state while improving the fragile ecosystem of the Sacramento-San Joaquin Delta
cual es el recorrido del aire al inspirar?
two types of variables
Answer:Independant and Dependant?
Explanation:
I'm not sure but those are two types
n a classic example of this type of trait: the arms of a human, the legs of a cat, the flippers of a whale, and the wings of a bat, all have similar structures as seen in the picture above. Each of the structures serves a unique purpose for the different organisms and their lifestyles. However the similarity between the structures implies that they were derived from a common ancestor. What kind of trait is being described in this example
Answer:
Scientists must collect accurate information that allows them to make evolutionary connections among organisms. Similar to detective work, scientists must use evidence to uncover the facts. In the case of phylogeny, evolutionary investigations focus on two types of evidence: morphologic (form and function) and genetic. In general, organisms that share similar physical features and genomes tend to be more closely related than those that do not. Such features that overlap both morphologically (in form) and genetically are referred to as homologous structures; they stem from developmental similarities that are based on evolution. For example, the bones in the wings of bats and birds have homologous structures (Figure 1).
Figure 1. Bat and bird wings are homologous structures, indicating that bats and birds share a common evolutionary past. (credit a: modification of work by Steve Hillebrand, USFWS; credit b: modification of work by U.S. DOI BLM)
Notice it is not simply a single bone, but rather a grouping of several bones arranged in a similar way. The more complex the feature, the more likely any kind of overlap is due to a common evolutionary past. Imagine two people from different countries both inventing a car with all the same parts and in exactly the same arrangement without any previous or shared knowledge. That outcome would be highly improbable. However, if two people both invented a hammer, we can reasonably conclude that both could have the original idea without the help of the other. The same relationship between complexity and shared evolutionary history is true for homologous structures in organisms.
What is the WIFI password for Daniel Boone High School?
Answer:
Id-k............. y?
....Explanation:
Which health claims increased in number during each year listed?
Answer:
umm ima say Dietary supplement health and education act of 1994.. thats what my mom said lol
A skateboarder drops in off the top of one side of the half pipe shown below. She does not push off and starts from rest. She stands straight as she skates down one side and up the other. She expected to get to the top of other side but didn’t make it. The skateboarder recalled the law of conservation of energy from science and didn’t understand why she didn’t make it to the top of the other side.
Which of the following actions would help the skater reach the top of the other side of the half pipe?
Lubricate the wheels in order to reduce frictional force that is causing the skateboard to lose velocity and bend down while skating off the side and bottom of the half pipe.
Hold a weight in order to increase her mass and cause the skateboard to move with a greater velocity down the half pipe.
Sit on the skateboard in order to lower her center of mass and increase the potential energy of the skateboard.
Push off at the bottom of the half pipe in order to replace lost energy and add kinetic energy to the skateboard.
The actions that will help the skater reach the top of the other side of the half pipe is to lubricate the wheels in order to reduce frictional force that is causing the skateboard to lose velocity and bend down while skating off the side and bottom of the half pipe.
The law of conservation of energy from science states that energy can neither be created nor destroyed but can be transformed from one form to another.
The skateboarder couldn't make it to the top of one side of the half pipe because the kinetic energy that was generated was converted to heat energy through friction.
As the heat energy is lost to the surrounding environment, the skateboard loses velocity.
Bending down by the skateboarder will provide additional energy to make up for the lost energy.
Therefore, in order for the skateboarder to reach the top of the other side of the half pipe, she has to lubricate the wheels in order to reduce frictional force that is causing her to lose velocity and bend down while skating off the side and bottom of the half pipe.
Learn more here:
https://brainly.com/question/1299704
Answer:
Lubricate the wheels in order to reduce frictional force that is causing the skateboard to lose velocity and bend down while skating off the side and bottom of the half pipe.
Explanation:
Got the answer right on a quiz and reducing frictional force leads to many other contributing factors that makes the skateboarder reach the other side of the half pipe.
Can the world run out of carbon? no
COMPLETE
Explain why you answered the way you did.
RETRY
Photosynthesis requires which kind of energy ?
Answer:
Solar energy (light energy)
Explanation:
Plants absorb the energy from the sun along with water,carbon dioxide to photosynthesize and produce their own food (starch,glucose) and oxygen.
I hope this helps:)
WHAT IS VACUOLE MEANING
Answer:
a space or vesicle within the cytoplasm of a cell.