Answer:
b gather evidence
Explanation:
ask if anymore help
Keystone species affect the populations of many other species in a community.
True
False
Answer:
True
Explanation:
define the following words a: biology
b:biotechnology
Answer:Biotechnology is a broad area of biology, involving the use of living systems and organisms to develop or make products. Depending on the tools and applications, it often overlaps with related scientific fields
biology the laws and phenomena relating to an organism or group
Biology: The study of living organisms is called biology
Biotechnology: Application of technologies in the field of biology.
What is the difference between biology and biotechnology?Biotechnology is a subfield of biology, which is a science. Biotechnology is the use of biology for human benefit, whereas biology is the study of living things. Biotechnology uses a variety of methods, such as the genetic engineering of bacteria, to produce industrial goods.
The anatomy of living things is what distinguishes biology from biotechnology. The anatomy and physiology of living things are the main topics of biology. Contrarily, biotechnology is concerned with technology. It has nothing to do with the least important aspects of a living thing's anatomy and physiology.
Hence, this is a detailed explanation of biology and biotechnology.
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Respiration releases ____.
A.Oxygen
B.Carbon dioxide
C.Nitrogen
D.Carbon
Answer:
A. oxygen is what we brief
Compare and contrast the two types of tsunami
The hardest coal has the most energy and burns the cleanest. Where do coal miners find the HARDEST coal?
A. on the surface of the earth
B. in the oceans
C. deep beneath the earth’s surface
D. at the bottom of shallow lakes and rivers
Answer:
C
Explanation:
This coal will be more compact and therefore most of the water and CO2 has been expelled due to this. This coal is called Anthracite and burns the cleanest. It is often found in areas with high stress and lots of pressure so mainly far underground. Why do you think the the majority of mines are underground and not open sites? So that they can get to the best coal the most economic and ergonomically way possible
What does the word optimal mean
Answer:
best or most favorable; optimum
Explanation:
To be honest i copied it from the internet
An experiment was designed to investigate the effect of caffeine on the heartbeat of Daphnia magna, or water fleas. These tiny, aquatic animals are used because their transparent bodies make it easy to see their hearts and measure their heart rates. Two populations of Daphnia were raised, (A) and (B). Both populations lived in tanks of water at the same temperature and received identical amounts of food. Every 2 hours, water fleas from both populations were selected and their heartbeats were monitored. Population (A) had 0.5 g of caffeine given to them five minutes before their heartbeat was checked. Population (B) were given 0.5 g of water and with no caffeine.
Answer:
This question is incomplete. It is asking to identify the following in the experiment:
Independent variable: CAFFEINE
Dependent variable: HEARTBEAT
Experimental group: POPULATION A, which were given 0.5g of caffeine
Control group: POPULATION B, which were not given caffeine
Constants: SAME TEMPERATURE, SAME AMOUNT OF FOOD, SAME TIME BEFORE CHECKING
Explanation:
Independent variable in an experiment is the variable which is changed or manipulated by the experiment. In this experiment, the independent variable is the CAFFEINE.
Dependent variable is the variable that is measured by the experiment or in other words, the variable that responds to changes made to the independent variable. In this experiment, the dependent variable is the HEARTBEAT measured.
The experimental group of an experiment is the group that receives the experimental treatment (caffeine). In this experiment, the POPULATION A of Daphnia magna, or water fleas are the experimental group because they received 0.5g of caffeine.
On the other hand, the control group is the group that does not receive the experimental treatment. In this experiment, POPULATION B did not receive any caffeine, hence, it is the CONTROL GROUP.
Constant or controlled variable are those variables that the experimenter must keep unchanged for all groups throughout the experiment, in order not to influence the experiment's outcome. In this experiment, the constants are: SAME TEMPERATURE, SAME AMOUNT OF FOOD, SAME TIME BEFORE CHECKING (2hrs)
what happen to the solar radiation that is absorbed?
Answer:
Explanation:
Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. Some of the sun's energy is reflected back to space by clouds and the earth's surface.
Bacteria reproduce by a process known as
A.)meiosis
B.)competitive fusion
C.)mitosis
D.)binary fission.
Answer:
The answer is D, binary fission
Answer:
D.) binary fission.
Explanation:
The process of reproduction in bacteria is known as binary fission.
list and explain the pests of maize
Answer:
Pests of Maize and Their Control
Leaf Feeders
Corn Leaf Aphid.
Spider Mites.
Thrips.
Dingy Cutworm.
Armyworm.
Grasshopper.
Corn Flea Beetle.
Stink bug.
Explanation:
can someone please help me
Answer:
False, Cancer Will continue to grow unless treated
what are some environmental effects of open pit mining?
Answer:
pit mining exposes rocks that have been buried for millions of years and these rocks are crushed and when they are crushed they release radioactive elements and other air pollutants into the air.
Explanation:
got me 100 on edge
Which is erosion taking place on the river diagram: A or B? (idk which subject to pick :/)
Answer: I think A!
Explanation: Because of the waters force, it would be wearing down on A, because of the way this river is shaped :) please let me know if this helps! Have a great night and good luck!
A liquid finds its own
کے ارد
Answer:
When water or any other liquid is poured into the communicating tubes shown in Fig. 10.9 it stands at the same level in each tube. This illustrates the popular saying that, “water finds its own level
Suppose a human blood cell containing a 0.9 percent solute concentration were put into a container of 0 percent solute solution (i.E., distilled water). Would the blood cell get bigger or smaller? Why? In your explanation, you must tell me which area has the hypotonic solution (inside the blood cell or outside the blood cell), which area has the hypertonic solution (inside the blood cell or outside the blood cell), and which direction the water would be moving (into the cell or out of the cell).
Answer and explanation:
If a human blood cell with a 0.9% solute concentration were to be put into a container of 0% solute solution, the cell would get BIGGER.
The cell contains a more concentrated solution than the solution in the container. The difference in concentration would produce an osmotic gradient that would cause water from the container to get inside the cell to even the concentrations - this is going to make the cell much bigger because the entering water would bloat the cell.
In this example, the solution in the container is hypotonic in relation to the cell, while the solution inside the cell is hypertonic in relation to the solution in the container. This is why the water will be moving from outside of the cell to the inside of the cell.
Which statement best describes the cell membrane of a living cell?
A) It is composed of proteins and carbohydrates
B) It has the same permeability to all substances found inside or outside the cell.
C) It is a double protein layer that doesn't allow things to pass through it.
D) It selectively regulates passage of materials into and out of the cell..
D) It selectively regulates passage of materials into and out of the cell.
The plasma membrane in a living plant cell is composed of a double lipid layer that gives it hydrophobic character and acts as a semi- permeable barrier. The partial permeability of the substances allows regulating the passage of substances from and to the interior of the cell. At the level of the plasma membrane there are several mechanisms and transport to allow the entry of substances needed for the cell or the output of synthesized products or metabolic waste, thus regulating the passage of substance in a selective way.They keep toxic substances out of the cell.They contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products.Therefore, correct option is D)
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which reactions add a water molecule to break a polymer into smaller parts?
What would they be called? I don't know/ I am multitasking and don't want to screw it up.
Answer:
Endotherms
Explanation:
It says internal temperature and I know that endo means in. Also Google told me so. (I had to double check my answer)
Lactic acid fermentation occurs in ____.
A.
bread dough
B.
an environment containing oxygen
C.
muscle cells
D.
mitochondria
Answer:
B an environment containing oxygen
Explanation:
Answer:
C. muscle cells
Explanation:
Which of the following is(are) non-technological ways of improving air quality?
a. using public transportation
b. building wind turbines
c. turning lights off when leaving a room
d. both a and c
Using public transportation and turning lights off when leaving a room are both non-technological ways of improving air quality. Therefore, (A) and (C) are correct.
What is air quality?An air quality index is a tool that is used by government agencies to communicate with the general public about the current level of air pollution as well as the level of air pollution that is expected to occur in the near future.
The Clean Air Act regulates a number of key air pollutants, including ground-level ozone, particle pollution, carbon monoxide, and sulfur dioxide. The AQI is determined based on these four pollutants. The Environmental Protection Agency (EPA) has developed national air quality standards to safeguard the general population from each of these contaminants.
We can improve the quality of the air by:
Try to cut down on the amount of times you drive your vehicle.Use of fireplaces and wood stoves should be cut back or eliminated entirely.Avoid burning anything, including leaves, rubbish, or other objects, on fire.Try to avoid using lawn and garden equipment that is powered by gas.Learn more about AQI, here;
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Answer: d.both a and c
Explanation:
He map shows crops that were grown by early humans. A map titled Plant Domestication by Early Humans. A world map shows the Equator line. Shaded regions show the location of domesticated plants. Shaded regions begin near the equator and continue north for approximately one quarter of the map. What conclusion can be drawn from the map about farming by early humans?
Answer:
b
Explanation:
What is physical evidence?
ОА.
matter
OB.
elements
OC.
atoms
OD.
compounds
O E.
mixtures
Answer:
Its A. Matter
Explanation:
I took the test
More than _______ million substances are a result of substances.
Answer:
1.23
Explanation:
Answer:
58.8
Explanation:
What are the 2 components of science
Explanation:
"Science can be grouped into two broad categories: natural science and social science. Natural science is the science of naturally occurring objects or phenomena, such as light, objects, matter, earth, celestial bodies, or the human body."
HELP it is late work i need help
Answer:
Question 1: The car is traveling 65 miles per hour
Question 2a: The car travels 97.5 miles in 1.5 hours
I am not sure about b. Also I do not know if my answers are right sorry!
Explanation:
2a: 65*1.5=97.5
diffusion of water through a membrane
Answer:
osmosis
Explanation:
Answer:
Explanation:
Osmosis is a type of simple diffusion in which water molecules diffuse through a selectively permeable membrane from areas of high water concentration to areas of lower water concentration.
plz mark as brainliest
8. Explain why young adults coming into the ER with brain
swelling are often asked about drug use?
Answer:
Over the past several years, the misuse of opioids – ranging from prescription painkillers to black tar heroin – has reached epidemic proportions. In 2015, the Media Research Center reported that drug overdoses had surpassed motor vehicle accident fatalities nationwide for the first time. Since 1999, nearly 200,000 Americans have died from a prescription drug overdose. Heroin use increased in response to advocate and lawmaker efforts to restrict overprescribing, doctor shopping, and opioid sales via online pharmacies. As prescription drug overdoses fell from 2010 to 2015, the number of heroin overdoses tripled.
Opioids are synthetic or semi-synthetic substances originating from the poppy plant. Examples include heroin, Fentanyl, and prescription opioid painkillers, all of which operate in the same fashion, albeit with varying degrees of strength. Synthetic opioids are among the most dangerous and addictive. The synthetic opioid Fentanyl, for example, is 25 to 50 times more potent than heroin, which is a semi-synthetic substance.
The National Institute on Drug Abuse explains, “[Opioids] act by attaching to specific proteins called opioid receptors, which are found on nerve cells in the brain, spinal cord, gastrointestinal tract, and other organs in the body.” When substances attach to these receptors, they change how the brain perceives pain and instead produce feelings of euphoria. They also slow essential body functions, such as heart rate and breathing.
Identify the characteristics of life. Check all that apply.
Answer:
* Having cells
* Use energy
* Reproduce
* Respond to the environment
* grow and develop Cells
Explanation:
Answer:
-Has one cell or more
-Use energy
-Reproduce
-Grow and develop
-Respond to the environment
A scientist used a model to predict the path of a hurricane. The hurricane followed a similar path but did not follow the exact path that was predicted. How does this example
demonstrate a limitation of models?
O Models cannot be used to predict things.
O Models can be used to predict weather events before the event occurs.
O Models cannot account for how every factor may suddenly change.
O Models can only be used to show physical structures, not events such as hurricanes.
Answer:
Your answer is 3. Models cannot account for how every factor may suddenly change.
Hope this helped you :))))
Huntington's disease is caused by the allele H, which is completely dominant to the normal recessive allele h. Consider a couple where the man has the genotype Hh, and the woman has the genotype hh. What is the chance that their first child will develop Huntington's disease?
50%
0%
25%
75%
Answer:
25%
Explanation:
