Answer:
Hypothesis
Explanation:
Defend the use of the metric system. Why is it important for Biology students like you to get comfortable using it?
Answer:
Explanation:
Metric Units helps to make measurements and calculation a easy task.
Metric unit is a Standard system that enables result to be comoare among scientist including biology scientist when work from different part of the country.
metric system has individual unit that is few about 30 individual units that are important in some fields.
Lion populations are found all over Sub-Saharan Africa. How do the sequences above reinforce or contradict the idea that populations of lions who are genetically similar live in the same geographic area?
Answer:
Lion populations are found all over Sub-Saharan Africa showing genetic similar lions live in same geographic areas as the DNA strands are similar to each other and they can be related to each other.
It means lions with genetic similarity can be present in the same geographic area as Lion populations are found all over Sub-Saharan Africa.
Different rose bushes are grown in a greenhouse for two months. The number of flowers on each bush is counted at the end of an experiment.
IV____________________________________________________
DV____________________________________________________________________
Constant _____________________________________________________________________
Independent Variable - The type of rose bush.
The independent variable is something you change. In a good experiment, you should only have one independent variable so things don't get confusing. In this experiment, the type of rose bush would be the independent variable. It is the one thing that is being changed.
Dependent Variable - The number of flowers.
The dependent variable is the data that is obtained in an experiment. In this experiment, the number of flowers would be the dependent variable. The amount of flowers is the data from the experiment.
Constant Variable - Soil, light, water, greenhouse, amount of time.
The constant variable is something in the experiment that stays constant and doesn't change. In this experiment, it mentioned having the timespan of two months and being in the same greenhouse, those are constants. Some other things that aren't mentioned but would be constants are the type of soil, color and amount of light, amount of water, etc.
Does an electric motor turn faster if you increase the voltage? Voltage of the electricity used is measured in volts. Speed of rotation measured in revolutions per minute (RPMs)
Answer:
Yes.
Explanation:
Yes, an electric motor move faster if we increase the voltage because by increasing voltage we supply more energy in the form of current. Voltage means energy available per unit charge so if the voltage increases more energy is available for an electric motor in the form of electric current and by using more energy they move with high speed. The unit of Voltage is volts.
A well designed experiment can only have one dependent variable?
True
False
A well-set-up experiment is defined and concluded by the presence of the variables. There may be more than one or two dependent variables in an experiment. Thus, the statement is false.
What is the dependent variable?Dependent variables are defined as values that are not independent of the factors rather than the conditional value that gets altered by the conditions of the experimental design. These values are supposed to be in accordance with the law and hypothesis.
An experimental design can have more than one dependent variable as it allows the hypothesis to have a precise and accurate solution to the problems that also can respond to various queries.
Therefore, the statement is false.
Learn more about dependent variables, here:
https://brainly.com/question/26198450
#SPJ2
Water is a compound
A. Polar and covalent
B. Tribunary
C. Non-polar
D. Ionic
Explain why the average temperature on Earth would be 0 degrees Fahrenheit
Without the layer of greenhouse gases.
Answer:
The average temperature on Earth would be 0 degrees Fahrenheit because there would be nothing holding in the heat inside the atmosphere.
Explanation:
The Greenhouse effect happens when the heat from Earth gets trapped in the atmosphere, making the Earth warmer. Without the Greenhouse gasses, the heat escapes the atmosphere, leaving Earth to being colder.
What kind of effect would occur to the biotic factors if the water became contaminated by fertilizer (abiotic factor)?
If the water becomes contaminated by fertilizers, the biotic factors will not be survived properly in that water. Due to contamination, genetic changes and diseases can cause.
What are biotic factors?Biotic factors are those factors that are living or once living. The characteristics of biotic factors are growing and reproducing. These factors are plants, animals, fungi, bacteria, etc.
Fertilizers are chemicals that are used in plants and farming to increase the growth of crops and plants. These fertilizers, in the end, go into water bodies and contaminates them.
These fertilizers are not good for water, as animals drink this water and due to heavy chemicals, these fertilizers cause deformities in animals and plants.
Thus, The biotic factors in the water will not be able to survive effectively if it becomes tainted by fertilizers. Diseases and genetic alterations may result from pollution.
To learn more about biotic factors, refer to the link:
https://brainly.com/question/15170301
#SPJ2
two facts about biology in the 21st century
Answer:
Some of the most important discoveries, which have occurred in the past 50 years, are bacterial insulin synthesis, gene therapy, stem cell technology, somatic cell nuclear transfer, transgenic organisms and organ transplant technology.
Explanation:
An advantage of light microscopes compared to electron microscopes is that light microscopes (4 points)
a
allow you to view the surface of cells in greater detail than electron microscopes
b
have a higher magnification capability because they use natural light
c
allow you to view living cells, while electron microscopes do not
d
have a greater resolution available because they use white light
Answer:
the answer is B.
Explanation:
The biggest advantage is that they have a higher resolution and are therefore also able of a higher magnification
Answer:
C - Allow you to view living cells, while electron microscopes do not
Explanation:
The method used to prepare the specimen for viewing with an electron microscope kills the specimen. Electrons have short wavelengths that move best in a vacuum, so living cells cannot be viewed with an electron microscope.
In a passenger car or truck (with a manufacturers` rated carrying capacity of not more than 1,500 pounds), which of the following people must use s... - In a passenger car or truck (with a manufacturers rated carrying capacity of not more than 1,500 pounds), which of the following people must use safety belts? A. 148 feet B. 208 feet C. 264 feet D. 324 feet
Answer:
All occupants
Explanation:
It is required by the law that all passengers should always fasten their seat belt along with the requirement for belting up of all occupants of the vehicle.
Seat belt violation can attract fines of up to $250 in addition to the cost for the court to seat
Putting on safety belt ensures increased likelihood of survival of the passengers seated in front by 50% and the wearing of seat belts in combination with the presence of a protective airbag ensures the highest reduction in vehicle collision related injuries or fatalities.
Which factors affect plant and animal life in terrestrial blomes?
A. Salinity
B. Precipitation
C. Dissolved oxygen
D. Season
Answer:
precipitation and season
All but one of the following statements is true of uterine function. Select the statement that is not true of uterine function.
A) The endometrium has a functional layer that the embryo will implant into.
B) Its rhythmic, reverse peristalsis can propel sperm toward the egg.
C) The narrow portion of the uterus near the cervix is the most typical site of fertilization.
D) The myometrium contracts to expel the fetus during child birth
What happens to the total mass of the chemicals
involved in the reaction as the reaction proceeds?
The mass decreases. After the reaction, the
solution and gas have less mass than the
baking soda and vinegar.
The mass increases. After the reaction, the
solution and gas have more mass than the
baking soda and vinegar.
The mass is the same. After the reaction, the
solution and gas have the same mass as the
baking soda and vinegar.
Answer:
The mass increases. After the reaction, the solution and gas have more mass than the baking soda and vinegar (B)
Explanation:
The mass increases. After the reaction, the solution and gas have more mass than the baking soda and vinegar (B).
What happens to the full mass of the chemical substances on the give up of chemical reaction?In a chemical response, the overall mass of all the materials taking elements inside the reaction stays identical. also, the quantity of atoms in response remains identical. Mass can not be created or destroyed in a chemical response.
How will the mass of the system alternate as the reaction proceeds?If a chemical reaction is finished in a closed gadget (when nothing greater can get in and nothing can escape), then the mass will stay steady. but, if the chemical reaction occurs in an open device (where air can get inside and outside), then mass might also seem to trade.
Learn more about the chemical reaction here: https://brainly.com/question/16416932
#SPJ2
Two students completed an experiment to determine if pesticide use at local farms was causing fish kills in a local pond. The steps of the
below.
1. Select one location to collect water samples in the pond.
2. Collect a 5-ml water sample at 8 am, 12 pm, and 6 pm for 10 days.
3. Measure the amount of pesticide present in each sample using different measurement tools.
After analyzing their data, the students conclude that pesticide runoff from farms is causing the fish to die in the pond. Which of these stat
why their conclusion is not valid?
Different measuring tools are used to measure the water samples.
The pesticide measurements were the controlled variable
The samples were collected for multiple days at the same times of day.
The time and day of sample collection was not an independent variable.
Answer:
The pesticide measurements were the controlled variable
Explanation:
state and explain how osmosis is an essential process in our day to day life
Answer:
Everything on earth is all about balance. In osmosis, water follows from region of high concentration to region of low concentration through a semi permeable membrane. This is important because it helps to regulate salt and mineral content in the blood in our body.
what is the history of policing until present day
Answer:
In London, On September 29, 1829.
Explanation:
The history of policing started On September 29, 1829, when the government of Britain established Metropolitan Police Service in London which was the world's first modern and professional police force. The government established this police service in order to control crimes and protect the people from criminals. After Britain every country in the world established a police department in order to control crimes in their countries.
Where are ribosomes made? Picture A Picture B Picture C Picture D
Answer:
A
Explanation:
Answer:
picture a
Explanation:
true or false: dark energy is a "repulsive force"
Answer: True
Explanation: Dark energy is the name given to the mysterious force that is accelerating the rate at which our universe is expanding. ... Some repulsive force is pulling the universe apart and this force was dubbed “dark energy”. Riess and Livio describe the three main hypotheses to explain the nature of dark energy. The leading theory to explain the accelerating expansion is the existence of a hypothetical repulsive force called dark energy. ... "Usually this repulsion is ascribed to a mysterious dark energy that would uniformly permeate the cosmos, but nobody knows what it is nor why it behaves this way," Villata said in an email. Dark energy is believed to be responsible for the expansion of the universe, counteracting gravity, and is considered to be the fifth force acting on matter, after gravity, the electromagnetic force, and the strong and weak nuclear forces.
Evolution can be guided by random processes. What is the effect called when some genotypes are lost in a small population over time, leading to a more homogeneous genetic pool
Answer:
Genetic drift
Explanation:
Genetic drift is defined as the random change in allelic frequencies from one generation to the other.
Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population, meaning that this effect is inversely proportional to the population size. Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to randomly fixate one of the alleles. Low-frequency alleles are the most likely to be lost. Genetic drift results in a loss of genetic variability within a population.
Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.
The water Buffalo is a ? consumer because they eat plants
Answer:
Herbivore (plant eating)
Explanation:
Because they only eat plants, this means water buffalos are herbivores.
Herbivores are a type of consumer that only eat plants.
Answer:
Herbivore
Explanation:
There are five main types of consumers, classified by their diet.
Herbivores: eat plants.
Carnivores: eat meat and other animals.
Omnivores: eat both plants and animals.
Decomposers: break down dead material and waste to return nutrients to the earth.
Scavengers: eat animals that are already dead.
The water buffalo eats plants. Based on the information above, we can assume the water buffalo is a herbivore.
In the brain, the ____________ receives signals of increased blood ____________ (concentration) from various receptors. It responds by stimulating the posterior ____________ gland.
Answer:
I wish I could help I'm sorrrrry:(
PLEASE HURRY..........A skin cell divides to make a new skin cell. Which component of cell theory does this best illustrate? All living things are made of cells. Cells are the basic unit of structure and function of all living things. All cells come from other cells. Cells are generated from nonliving materials.
Answer: Hi!
If a skin cell divides into a new skin cell, this best demonstrates the component of cell theory that all cells come from other cells. The process that this cell is going through is called mitosis, where one cell splits into two. This can occur with skin cells, toe cells, lung cells, etc. - any body cells besides reproductive cells.
Hope this helps!
Answer:
b
Explanation:
HELP THIS IS DUE TODAY!!!!!
Answer:
The subsystem is where work is processed on the system.
Atmosphere:
Plants on land release oxygen during photosynthesis and the subsystem will be atmosphere because oxygen is finally processed on the atmosphere.Geosphere:
Bacteria living underground converts ammonia to nitrates and the waste from livestock add nitrogen to the soil have geosphere as the subsystem because both the process finally occur under the soil.Hydrosphere:
Marine life adds carbon-dioxide to ocean water during respiration have hydrosphere as a subsystem because carbon-dioxide is finnaly processed in the water medium.What is an educated guess that can come from a previous experiences and logical inferences?
What is isotonic solution?
HOPE IT IS THE RIGHT ANSWER... GOOD LUCK FOR YOUR ASSIGNMENT
Human geography is the study of the natural features of the Earth's surface, including
land formation, climate, and currents ,True or false
Answer:
False
Explanation:
Human geography is the branch of geography that deals with humans and their communities, cultures, economies, and interactions with the environment by studying their relations with and across locations.
The study of the interrelationships between people, place, and environment, and how these vary spatially and temporally across and between locations
Answer:
false
Explanation:
Observations and inferences are important in science. How would you explain the differences between the two words?
Explanation:
when you Observe, you describe what you are seeing at the moment. so observation means seeing.
inference is the result you receive by observation.
for example, "I threw a stick and the dog ran after it and brought it back to me" this is an observation. you don't mention the reason why the dog brought you the stick. you just describe what happened!
but if you say, "the dog was trained to bring back the stick." you are mentioning the reason of the dog's behavior and that's inference.
You explain what you are now observing when you Observe. Therefore, observation is seeing. As a result of observation, you arrive at an inference.
What is a scientific observation?
We use our senses to make observations when doing scientific investigations. When performing a scientific experiment, you use your senses to take note of or observe what is happening. Normally, this will be done using your sense of sight, but depending on the experiment, you could be able to use other senses as well.
In the context of a scientific experiment, it is what it means to observe. In further detail, we might describe observation as the process of knowing and documenting something. Observation simply means observing what is happening through your senses.
This relates to both the awareness of what is occurring and the subsequent documentation of what occurred. In order to avoid having to repeat the experiment over and over, it is crucial for scientists to document what happens throughout the experiment.
Therefore, we explain what you are now observing when you Observe. Therefore, observation is seeing. As a result of observation, you arrive at an inference.
Read more about observation, here
https://brainly.com/question/28041973
#SPJ2
WILL GIVEEE BRAINLIESTTTTTT!!!!!!!!!!! Why do scientific laws and theories change over time?
Your question has been heard loud and clear.
Well by the nature of science itself , we know that it is a rapidly progressing area . So , scientific laws are basically ideas from theories , it does not mean that it is absolute , because future research of that same topic on which the law is based , can always change and thus the theory and thus the law. So , scientific laws and theories change over time due to new phenomena and scientifc research that gives a more accurate theory than the old laws and theories.
Thank you
What is a carbohydrate molecule
Answer:
I
Explanation:
it is an organic compound such as sugar, starch and is used to store energy