Answer:
Explanation:Each drum must endure for one-half a second, so the period is 0.5 s. If the woodpecker drums upon a tree 4 times in one second, then the frequency is 4 Hz; each drum must endure for one-fourth a second, so the period is 0.25 s.
1. What is the first step of the scientific method?
Answer:
The first step in the Scientific Method is to make objective observations.
create a food chain for an ocean ecosystem.identify each organism’s role. Include producer Estuary organisms: algae, sea lion, zooplankton, squid, salmon
Answer: Algae, Zooplankton, Salmon, Sea Lion, and then Squid (or might be sea lion and then squid)
Explanation:
Algae is the producer.
write down four characteristics of Aves
four characteristics of Aves are:
Birds are warm-blooded animals.
Their forelimbs are modified into wings.
They have well-developed flight muscles that help during the flight.
Their hind limbs are adapted for walking, hopping, perching, grasping, wading and swimming.
True/False: Mutations that inactivate genes that promote apoptosis often lead to increased risk of developing cancer. g
Answer:
An important difference between oncogenes and tumor suppressor genes is that oncogenes result from the activation (turning on) of proto-oncogenes, but tumor suppressor genes cause cancer when they are inactivated (turned off).
Its true g
Explanation:
i actually dont know
Question and hypothesis worksheets
search Question and hypothesis worksheets
and go to images
Please select the correct answers
Answer:
c is the answer
Explanation:
what would happen if cell in human recepter is absent
Answer:
if cell in human receptor is absent then it can't detect the signal and send them to the Brain in the form of electrical signal due to it will not detect the input leading to harm our body in dangerous situation
Which statement best describes how science influences the development of a national law?
Answer:
Scientific laws were theories that have been tested, proven, and adopted as laws.
Explanation:
hope it help goodluck:)
4. An example of a sliding joint is
A. Elbow joint
B. Neck joint
C. Knee joint
D. Wrist joint
Answer:
hello
I
guess
its
Elbow joint
Describe the interrelationship between protons Neutrons and electrons
Answer:
Protons and neutrons are in the center of the atom, making up the nucleus. Electrons surround the nucleus. Protons have a positive charge. Electrons have a negative charge.
Explanation:
Answer:
Protons and neutrons are in the center of the atom, making up the nucleus. Electrons surround the nucleus. Protons have a positive charge. Electrons have a negative charge.
Please write in your own words). The Science of Biology: Question 1: Explain how sunlight is the primary source of energy for your own life? Question 2: In terms of energy, what is the difference between glucose and ATP? Question 3: Explain the role of a hypothesis in a scientific investigation? ( Will Mark Brainliest if correct). ( Don't copy down what you find in books or websites).
Answer:
well sunlight is the primary source of anergy for your own life because plants use the sunlight to make food and make oxygen and humans need to breathe oxygen
Which of the following advances best describes the idea that today we may be experiencing a second golden age of microbiology? Multiple Choice Koch postulates Genomic testing Biochemical testing Light microscopy
Genomic testing explains the idea that today we may be experiencing a second golden age of microbiology.According to Research, The Second Golden Age of Microbiology has developed into the Birth of Molecular Biology and in the production of Chemotherapy.
Now, Genomic testing,which is as a result in the advancement of molecular biology is used in observing the DNA in a human body so as to identify any alteration or change in the genes to curb and prevent any suspecting genetic disorder such as tumors, or any other diseases as a result of hereditary which is the trending situation.
See about Microbiology and genetics here: https://brainly.com/question/17308038
Mitochondrial inheritance tends to not follow traditional heredity patterns described by Mendelian laws. A mother has a
mitochondrial condition where she produces a modified version of ATP synthase that is embedded in the inner mitochondrial
membrane. Which outcome is predicted for a mother who has four children with an unaffected father?
The outcome is predicted for a mother with a mitochondrial condition where she produces a modified version of ATP synthase that is embedded in the inner mitochondrial membrane who has four children with an unaffected father - all four offspring will have this mitochondrial condition
Mitochondrial inheritance is a type of inheritance that is caused by mitochondrial DNA.
Mitochondrial DNA is the small circular chromosome found inside mitochondria.The mitochondrial DNA, are passed exclusively from mother to offspringsa mitochondrial disease was inherited, there is a 100% chance that each child in the family will inherit a mitochondrial disease.Thus, all four offspring will have this mitochondrial condition
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pls help me solve this! (20 pts)
Answer: asuume
Explanation: i would asuume 2
Nitrogen-fixing bacteria are prokaryotic organisms that transform nitrogen gas into nitrogen compounds like ammonia and nitrates.
The graph that correctly shows the nitrogen-fixing bacteria in the soil is graph 2.
Nitrogen-fixing bacteria can be explained as:
Nitrogen-fixing bacteria are the organisms that fix the atmospheric nitrogen into the compounds of nitrogen as ammonia and nitrates.The conversion of the atmospheric nitrogen is done in two steps, the first step involves the conversion of atmospheric nitrogen to ammonia. The second step involves the conversion of ammonium to usable nitrate. Graph 2 represents the amount of atmospheric nitrogen decreasing with an increase in the amount of ammonia. It indicates that atmospheric nitrogen is utilized and converted into nitrogen compounds.
Thus, the correct answer is graph 2.
To know more about nitrogen-fixing bacteria, refer to the following link:
https://brainly.com/question/7049583
8. What part of the heart is described as having thin walls that store blood returning to the
heart?……
A. Upper chambers
B. Lower chambers
C. Ventricles
D. None of the above
Answer:
none of the above is answer
Describe water and salt uptake by roots from the soil
Awnser "i" and "ii".
feel free to use the internet
Answer:
i . ammonium bromide
II. the rate of diffusion depends on the relative density of the substances . a lighter gas diffuses quicker than a heavy gas. so the white ring( ammonium bromide ) is formed closer to the hydrogen bromide particles.
what is unique about the way a binary geothermal power plant works
Select the correct answer.
Imagine that an exchange student from China visits your class. While your teacher discusses how the United States has a limited government, the Chinese student raises his hand and asks why the government has limited power. Which point best highlights why the US government has limited power?
A.
A limited government means citizens pay fewer taxes.
B.
A limited government helps people avoid breaking the law.
C.
A limited government protects individual freedoms.
D.
A limited government prevents businesses from being too powerful.
Answer:
Option C
Explanation:
A limited government protects individual freedoms.
Hope this helps!
Parkinson's disease Is the disorder contagious?
What cells in the body do NOT undergo mitosis as
adult cells?
Answer:
Skin cells, red blood cells or gut lining cells
Explanation:
Stem cells do divide by mitosis and this makes them very important for replacing lost or damaged specialized cells
6.
What are two characteristics of each of Earth’s four major systems?
Answer:
Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air)
Used to measure length
Answer:
meters
Explanation:
a person has a mass of 63.4kg what is the weight in pounds
Answer:
1 kg= 2.204 lb
63.4kg x 2.204 Ib/ 1 kg= 139.7 lb
Explanation:
true or false: concept that cells or organisms maintain specific internal conditions
True hope it helps :>
Answer:
A balance inside the body or cells of organisms is called homeostasis.
Explanation:
Hope this helps. God bless
please help
Where does sound waves passes through
Ashley hypothesizes that adding coffee grounds to the soil will help the plants grow faster. She designs a controlled experiment to determine if this hypothesis is supported.She grows one group of soybean seedlings under normal conditions. She mixes three tablespoons of coffee grounds into the soil of the second group and grows the seedlings under the same light, temperature, and watering regimen. After three weeks, she measures the height of the seedlings and compares the two groups.Identify the parts of the experiment. Place only one term in each category. You will not place all the terms.
The purpose of this study is to determine the experimental group, the control group, the dependent variable, and the independent variable.
Designing and carrying out an experiment is the best approach to prove whether a hypothesis is true or incorrect. To ensure that an experiment examines exactly what the hypothesis claims, scientists must be cautious in how they construct it.
To ensure that only one factor is being altered in an experiment, the independent variables are therefore divided into two groups.
The control groupThe experimental groupThe control group does not experience any changing variable.
The experimental group receives all of the experiment's circumstances, changes as well as the one variable that the experiment is testing.
In Ashley's experiment:
The experimental group:
Seedlings grown with coffee grounds.The control group:
Seedlings grown without coffee grounds.The dependent variable:
Seedling heightThe independent variable:
SoilTherefore, we can conclude that we understand the concept of the experiment carried out by Ashley.
Learn more about the hypothesis here:
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Therefore, how many °F are there in one °C?
Which of the following represents the impacts of drilling and fracking on human health?
I. Heavy metal exposure can cause nervous system damage.
II. Air pollution can aggravate respiratory conditions.
III. Noise pollution can cause headaches, changes in sleep patterns, and anxiety.
- III only
- I and II
- II and III
- I, II, and III
Answer:
II and III
Explanation:
I only applies to mining and not drilling.
The correct answer as to the impacts of drilling and fracking on human health includes nervous system damage as a result of heavy metal exposure, respiratory diseases as a result of air pollution, and headaches, changes to sleep patterns, etc. as a result of noise pollution. The correct answer would therefore be I, II, and III.
Drilling and fracking are innovative technology methods used in the location of water, minerals, and the extraction of crude oil from underground respectively. The methods are characterized by the noise of the drilling machine, air pollution by dust particles as a result of soil excavation, and heavy metal pollution of the environment.The different pollutions have varying degrees of effects on the health of human and these include damages to the nervous system by heavy metal, damages to the respiratory organs as a result of inhalation of particulate matters and headaches/anxiety as a result of noise pollution.Hence, all the three effects represent the impact of drilling and fracking on human health.
More on pollutions and their effects can be found here: https://brainly.com/question/22242558
Stage 1 sleep is characterized by a predominance of ________ wave activity in the brain.
Answer: theta
Explanation:
Stage 1 sleep is characterized by a predominance of alpha and theta wave activity in the brain.
The stage of entering the state of sleep is also called stage 1 and is considered as a boundary between the waking state and sleeping.
In this stage, the rhythm alpha predominates, which tends to slow down and show the presence of waves called theta, which are of greater amplitude.
Alpha activity is a pattern that results from a person resting and relaxing.
Theta waves are broad, low-frequency waves that would indicate a state of extreme relaxation and drowsiness.
Eye movements at this stage are slow and muscle tone drops. Phase I is short-lived and occupies about 3-5% of sleep.
Therefore, we can conclude that in stage 1 of sleep the alpha waves would be combined, with a new activity, called theta.
Learn more about stage 1 sleep here: https://brainly.com/question/19502301
