Answer:
The correct answer would be - hypothesis would be "If Drug X treats anxiety, then people who have anxiety and take Drug X should stop having symptoms.”
Explanation:
A hypothesis is an assumed or purposed explanation for a phenomenon on the basis of the available evidence at the beginning of the investigation. It required a scientific method to check if the hypothesis is true or not.
In the given case the most accurate hypothesis would be based on the fact that the drug X is helpful in case of anxiety and if it really helps such a patient then this drug should stop symptoms of anxiety.
Please help me asapppp anyone I will give brainliest
Answer: 1 = B, 2 = C, 3 = A
Explanation:
Eric drops a 3.70 kg water balloon that falls a distance of 20.38 m off the top of a building. What is the velocity at the bottom?
Answer:
The velocity of the balloon at the bottom is 19.99 m/s.
Explanation:
Given;
mass of water balloon, m = 3.7 kg
height of fall, h = 20.38 m
The velocity of the balloon at the bottom is calculated from the law of conservation of energy;
[tex]K.E_{bottom} = P.E _{top}[/tex]
[tex]\frac{1}{2}mv^2 = mgh \\\\ v^2 = 2gh\\\\v= \sqrt{2gh} \\\\v = \sqrt{2\times 9.8 \times 20.38} \\\\v = 19.99 \ m/s[/tex]
Therefore, the velocity of the balloon at the bottom is 19.99 m/s.
The axial skeleton is composed of the cranium, vertebrae column, ribs, sternum,
clavicle and scapula.
O True
O False
Answer:
False
Explanation:
The Axial skeleton is composed of the cranium, ossicles of the middle ear, rib cage, and vertebral column. The Clavicle and scapula are parts of the appendicular skeleton.
Which part of the dna experiences
the mutations
Answer:
Nucleotide
Explanation:
The ______ function of the nervous system is to gather ______ information and make decisions that affect ______ functions.
Answer: integrative; sensory; motor
Explanation: Have a great day :D
explain how low blood pressure can cause poor blood circulation
Answer:
People with very low blood pressure may experience poor circulation and other related symptoms. However, having a lower blood pressure measurement is not usually a cause for concern in people with a healthy cardiovascular system
Explanation:
Hope it will help please mark it as brainliest
Blood pressure would be highest in the vessel labelled:
3
4
2
1
Answer:2 its 2
Explanation:
Which of the following is used to screen for carcinogenic potential of various compounds?
transformation testing
replica plating
Ames test
ELISA test
Answer:
Ames test
Explanation:
This is because Ames test is a test that uses bacteria strain i.e Salmonella typhimurium to check or assess of a chemical has carcinogenic effect of it. It uses mutagenicity of bacteria. It is a biological assay that test whether an a chemical can cause mutations in the dna of the test organisms. When mutagens are added and also liver enzymes, there would be a reverse mutation and this will lead to their growth
Since its inception, the theory of evolution has been the subject of frequent debate. Those who oppose evolutionary theory often point to gaps in the
fossil record in an attempt to discredit the theory. Which statement would be the best counterargument as to why the fossil record can be relied upon to
support evolution?
The fossil record provides evidence that extinct species only fossilized during certain geologic eras.
The fossil record provides evidence that extinct species are genetically identical to current species.
The fossil record provides evidence of many different types of organisms, since most species fossilize well.
The fossil record provides evidence of many transitional organisms that show relationships between species
Answer:
There are lots of transitional organisms in the fossil record though it does take very specific and precise conditions for a fossil to be preserved, a deer that dies in a field will not end up in the fossil record so we are looking at a small sampling of the evidence (and a good thing too or there wouldn't be anywhere to walk with all the bones laying around)
Explanation:
Answer:
The fossil record provides evidence of many transitional organisms that show relationship between species.
Explanation:
took the quiz :)
In which parent could chromosomal rearrangement have made an X chromosome with 2 fur color alleles?
Answer:
Mother
Explanation:
(see image below)
According to the given situation, the mutation needs 2 X chromosomes and only the mother has 2 X chromosomes whereas a father has X and Y chromosomes.
What are the 23 chromosome pairs?Humans have 23 pairs of chromosomes, 22 pairs of numbered chromosomes, and 1 X and Y chromosome (father) and mother have (XX) chromosomes.
Each parent donates one chromosome to each pair so that offspring get half of their chromosomes from their mother and a half from their father.
Thus, the mother is an answer.
To learn more about chromosomes click here:
https://brainly.com/question/296477
the ability to detect stimuli from the environment is called
A exitability
B conductivity
C contractility
D differentiation
Answer:
Sensation
Explanation:
Sensation refers to our ability to detect and sense the internal and external physical qualities of our environment. Our senses include both exteroception (stimuli that occur outside of our body) and interoception (stimuli occurring inside of our bodies).
What is responsible
for the diversity of
life on Earth? (biodiversity)
Answer: The source of this diversity is evolution, the process of gradual change during which new species arise from older species.
Explanation: Good luck! :D
what factors determine how much the motion of the air molecules will change
The factors that determine how much the motion of the air molecules will change are:
.The rate of diffusion which is affected by the concentration gradient, .membrane permeability.temperature.pressureThe movement of substances from a region of higher concentration to a region of lower concentration is called diffusion of particles. This phenomenon is very important in cellular transport in plants.
The rate of diffusion is affected by 4 factors namely:.concentration gradient: Diffusion takes place when there is a difference between the concentrations of a substance across a barrier. Diffusion stops when the concentrations of the substance on either side of the barrier become equal.
.membrane permeability: Diffusion rate increases as membrane permeability increases.
.temperature and pressure is paramount in the diffusion of gases as gases diffuse from a region of higher partial pressure to a region of lower partial pressure. Same as in terms of temperature.
Learn more on the rate of Difusssion on
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What is surrounded by amniotic fluid?
Answer:
Amniotic fluid is a clear, slightly yellowish liquid that surrounds the unborn baby (fetus) during pregnancy. It is contained in the amniotic sac.
Explanation:
hope this helps!
I need help on this.
Answer:
Option B is correct answer hope it helps
Use the two drawings of cell to answer the question that follows.
Which of the following best describes the cell shown?
A. The cells are from the same organism
B.One cell is from a plant and one from an animal.
c. The cell are from different types of animals
D.The cells are from different types of plants
Answer:
D
Explanation:
The cells are from different types of plants
Why would you consider amphibians to have great biodiversity?
Amphibians are vertebrates in the class Amphibia that includes frogs, toads, salamanders, newts, and caecilians (wormlike amphibians). Amphibian species are considered important biological indicators of the health of an ecosystem because they live in both aquatic and terrestrial environments.
Which of the following is not a characteristic of electrons
Answer:
i dont know what the following are buttt here are some Characteristics of electrons -
Electrons are negatively charged particles.
They revolve around the nucleus in various energy levels.
They can be excited to higher energy levels by absorbing energy.
Mass of electron is 1/2000 times of proton/neutron.
H2=3.4g+O2=10g —> H2O= ?
Answer:
mass of 1 mole of H 2 = 3.4 g + O 2 = 10 g → H 2 O = 3614.35999774 g
Explanation:
Which of the following is a correct statement about evolution?
A. Evolution is a change in the morphological characteristics of a species
B. Evolution is a change in size characteristics of a species
C. Evolution is a change of allele frequency from one generation to the next
D. Evolution is the change in the physiological characteristics of a species
E. All answers are correct
Answer:
C. Evolution is a change of allele frequency from one generation to the next
Explanation:
Evolution is the gradual change that occurs to living organisms over successive generations. According to Charles Darwin, these changes aid in the adaptation of the species of an organism to their environment. In other words, it makes them better fit.
Charles Darwin further stated that since evolution is dependent on natural selection i.e selection of the best fit by environmental factors, the changes that the organism undergo are genetic. Hence, evolution is a change of allele frequency from one generation to the next.
4. Living things are sometimes called "carbon-based life forms." Do you think this is a good way to describe life? Explain your answer., help me asap
Answer:
Explanation:
Yes, for a couple of reasons.
1. Carbon connects easily with other carbons.
2. Carbon forms chemical that can change and connect with other carbons even in biology or especially in Biology. If you take a brown seen and plant it where it can get water and soil nutrients, to will come up as a green plant. Think about the chemistry that goes into that. Not only that, but there are mechanisms that tell the upper part of the plant that the roots can't supply any more growth. Isn't that something? All made from Carbon.
3. The human body is a mass of Carbon based chemicals and all cells there can have different functions. Amazing isn't it? I'm a fan of the diversity of our planet and its growth.
The blue area is the ocean floor while the green and brown area is dry land. Which of the following is the best conclusion that can be drawn from the map?
Answer:
These symbols are con- stantly refined to better relate to ... area features, such as vegetation (green), water (blue), and densely ... Topographic contours are shown in brown by lines of different ... spaced contours or an absence of contours means that the ground ... The bathymetric contour interval may vary on each map
Explanation:
Describe how plants and animals each contribute to the survival of the other. (This type of cooperative relationship is called interdependence.)
Answer:
Plants produce oxygen which is used by animals in the process of cellular respiration, while animals produce carbon dioxide which is required for plants to make the photosynthesis process
Explanation:
In biology, interdependence can be defined as a mutual dependence relationship among two (or more) taxonomic groups. Animals and plants are cooperatively interdependent because they mutually need each other for different essential aspects of life such as food, respiration, refuge, protection, propagation, etc. For example, plants produce oxygen which is used by animals for cellular respiration (obtaining energy from this process), since most animals are aerobic organisms. Similarly, animals release carbon dioxide (CO2) when they breathe out, and CO2 is used by plants to perform photosynthesis (i.e., to produce energy and carbohydrates from this process).
I’m stumped anyone know 4 metamorphosis facts?
Answer:
Insects that have complete metamorphosis have four life stagesInsects going through their immature stage are called larvaeInsects then enter an inactive state called pupa, or chrysalis. Whilst inside the pupa, the insect will excrete digestive juices, to destroy much of the larva’s body, leaving a few cells intact.In the final stage of the metamorphosis, the insect finally breaks through the pupa emerging as a full adultExplanation:
Multiple Choice Question
Sensory stimuli are detected by structures called:
Multiple choice question.
synapses
receptors
axons
Answer:
receptors
Explanation:
they receive impulses basically
Which part of the nervous system is considered the control center of the body?
1)hypothalamus
2)central nervous system
3)motor neurons
4)lateral nervous system
Answer and I will give you brainiliest
Answer:
2 because the central nervous system includes the brain, cerebellum, cerebrum, brain stem, etc.
What common antiseptic is obtained
from seaweed?
Answer: iodine
Explanation:
compare blood cells to plant cells, include details about color, general shape, and size.
Blood cells are red, squishy, rounded, and have an indentation in them in the middle. Plant cells are green and firm and have a more square, boxy shape. Plant cells are larger than blood cells.
Plant cell is different in size, colour and shape from blood cell.
Plant cell has cuboid shape whereas blood cell has biconcave discoid shape. The colour of blood cell is red if it has oxygen or brown if it is no oxygen whereas plant cell has green colour. Plant cells have cell walls, ribosomes, endoplasmic reticulum, DNA and lysosomes but blood cells have no ribosomes, no endoplasmic reticulum, no DNA molecule and no lysosomes. The size of blood cell is 6.2–8.2 µm whereas the size of plant cell has 10 to 100 micrometers so we can conclude that there are a lot of differences between plant and blood cells.https://brainly.com/question/21283369
Need some quick help with this:
Answer: burning fossil fuels and decomposition of dead organisms
Answer:
The answer is burning fossil fuels.
It’s the 3rd questions please help I don’t understand this