Answer: Mantle
Explanation: I got it right on study island
During which stage of development does a human learn self-care such a bathing, using the toilet, and brushing teeth?
puberty
infancy
early childhood
late childhood
Answer:
C. Early childhood
Explanation:
Answer:
early childhood
Explanation:
Raj drinks a glass of water in his kitchen. The water is at room temperature, and Raj decides to make it colder by adding ice. Which of the following describes why the ice cubes will melt?
Answer:
Heat from the water moves into the ice.
Explanation:
The ice has more heat than the frozen ice cube, so it will melt it.
what are the right ascension and delineation of the vernal and autumnal equinoxes
Answer:
Autumnal equinox right ascension = 12 hours; declination = 0°; Sun rises at 90° azimuth and sets at 270° azimuth. December solstice right ascension = 18 hours; declination = -23.5° Sun rises at greater than 90° azimuth and sets at less than 270° azimuth.
Explanation:
In which symbotic relationship does one organism benefit while the other organism is harmed?
Answer:
parasitic relationship is the answer
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.
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Biochemists working with proteins use a diverse set of treatments to analyze protein sequences. Denaturing agents unfold proteins. Some denaturing agents are reversible, and allow the proteins to be renatured after the procedure. A strong________ solution is a common reversible denaturant. Additional treatment with____________completely denatures proteins that contain disulfide bonds.
Answer:
Ethanol2-mercaptoethanolSee explanation below
Explanation:
Biochemists working with proteins use a diverse set of treatments to analyze protein sequences. Denaturing agents unfold proteins. Some denaturing agents are reversible, and allow the proteins to be renatured after the procedure. A strong ethanol solution is a common reversible denaturant. Additional treatment with 2-mercaptoethanol completely denatures proteins that contain disulfide bonds
A strong UREA solution is a common reversible denaturant. Additional treatment with 2-mercaptoethanol completely denatures proteins that contain disulfide bonds.
Denaturing reversible agents can alter the secondary/tertiary structure of a protein without altering its primary structure.Urea is a reversible denaturant that breaks hydrogen bonds in the secondary structure of proteins without modifying the primary structure.2-mercaptoethanol is a denaturing agent that cleaves disulfide bonds between cysteine residues.In conclusion, a strong UREA solution is a common reversible denaturant. Additional treatment with 2-mercaptoethanol completely denatures proteins that contain disulfide bonds.
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A basketball player jumps straight up to dunk a basketball. The basketball player's speed increases as she returns to the
ground. What is true about the forces acting on the basketball player?
A. The upward force is greater than the downward force.
B. The downward force is greater than the upward force
C. The rightward force is greater than the leftward force.
D. The leftward force is greater than the rightward force.
Answer:
The downward force is greater than the upward force.
Explanation:
The remaining time is spent in the top of the jump (the top 25% of the jump). In other words, half the jump time is spent in the highest 25% of the jump (the top part of the arc). This explains why a basketball player appears to "hang" during the jump.
Earth science pleas help...............
A farmer decides to test whether or not a fertilizer will make her crops grow bigger. In year 1, she plants corn in two different fields on her property and fertilizes one and not the other. She measures the height of 10 corn plants in meters from each field. She takes her measurements every week for three months. In year 2, she puts irrigation in one of the fields and conducts the same experiment.
Required:
a. What is the independent variable and the treatments (increments) used in the experiment?
b. What is the dependent variable and the units in which it was measured?
c. Name at least two controlled variables:
d. What is the hypothesis?
e. Identify two sources of error in the first year in the experiment:
f. Identify two sources of error in the second year in the experiment:
Answer:
a. independent variable: the fertilizer.
treatments: the use of fertilizer in one of the fields.
b. dependent variable: the crop growth in height.
units: meters
c. two controlled variables: soil pH / solar-radiation exposure, and water supply
d. hypothesis: the fertilizer makes the crops grow bigger.
e. two sources of error in the first year:
the researcher might plant the two crops under different conditionstake wrong measures of the height of the cornsf. two sources of error in the second year:
she can fail in irrigating the crops climatic and environmental conditions might change and have different consequences on each of the fields (this source affects the results influencing the growth of the plants).Explanation:
Independent (manipulated) variable: Refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. These changes allow analyzing its effects on the dependent variable. Usually, the independent variable is represented by the X letter. In the exposed example, the fertilizer is the independent variable. Treatments: Refers to the experimental procedure applied in the experimental group. In this example, the use of fertilizer is the treatment. Here the experimental group (the one that receives the experimental procedure, with changes in the independent variable) is the fertilized field. Data from the experimental group is compared with the data from the control group, to analyze the effects of the fertilizer.Dependent variable: The values of these variables respond to any change in the independent variable. It represents the quantity of something. The change in the dependent variable might be proportional or inversely proportional to the change in the manipulated variable. It is usually identified by the letter Y. In the exposed example, the crop growth rate in height is the dependent variable, that depends on the fertilizer used in that field. The units in which the crop is measured are meters in height. Controlled variable: Refers to those variables equally applied to every group or subject in an experiment and have no influence on the results. These variables do not affect the change in the dependent variable values. In the exposed example, soil pH and solar-radiation exposure can be two controlled variables, as they must be equal for both fields. Water supply by irrigation ducts during the second year in both fields is also a controlled variable. Hypothesis: A hypothesis is a possible answer for a question, a speculation that is not verified yet and requires corroboration. A hypothesis must express what is expected to occur in a perfectly comprehensive manner. It must be objective and directly related to variables. In this example, the hypothesis might be that the fertilizer makes the crops grow bigger. Errors: These are the differences between the observed data or taken values and what is really happening in nature, which can lead to a misinterpretation of what is actually going on. These errors might be systematic mistakes performed by the researcher when measuring, taking data, applying the treatment, etc. Or they might be due to random errors, which are due to failures in the instrumentals, changes in the environment, a single mistake of the researcher while taking measures, among others. During the first year, the researcher might plant the two crops under different conditions (parcels with different slopes which affect solar-radiation) or might commit a mistake while applying the fertilizer (different concentrations for example), or might take wrong measures of the height of the corns. During the second year, she can fail in irrigating the crops correctly, providing more water to one of the fields. She can commit the same measuring mistakes. Or even climatic and environmental conditions might change and have different consequences on each of the fields.The eye color of children often resembles the eye color of their parents. Which of the following is genetically passed from parents to children?
A. Particles of color are passed from parents to children.
B. Cells that become the colored part of the eye are passed from parents to children.
C. Nothing having anything to do with eye color is passed from parents to children.
D. Molecules (DNA) that contain the information that determines eye color are passed from parents to children.
Answer:
D
Explanation:
It is transferred as heredity.
Molecules (DNA) that contain the information that determines eye color are passed from parents to children.
Parents pass there genes to there offspring which helps in determining there phenotype.What are genes?A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins. Many genes do not code for proteins.What are proteins?A protein is a naturally occurring, extremely complex substance that consists of amino acid residues joined by peptide bonds. Proteins are present in all living organisms and include many essential biological compounds such as enzymes, hormones, and antibodies.
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What are the reactants and products of photosynthesis? *
glucose and oxygen are the reactants; carbon dioxide and water are the products
carbon dioxide and oxygen are the reactants; glucose and water are the products
Carbon dioxide and water are the reactants, glucose and oxygen are the products
glucose and water are the reactants, carbon dioxide and oxygen are the products
Answer:
Explanation:
Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by- products and ATP is energy that is transformed from the process.
Answer:
glucose and oxygen
Explanation:
URGENT PLZ ANSWER!!!!
Compare the structures of the cat and chicken embryos in the images above. Which characteristics do the species share as embryos that they do not share when they are fully developed? Select all that may apply.
a) Both animals have tails as embryos
b) Both animals have similar upper limb buds as embryos
c) Both animals have feathers as embryos
d) Both animals have structures similar to gill arches as embryos
e) Both animals use their upper limbs for the same function
Answer:
D
Explanation:
A pea plant with round seeds (RR) is crossbred with another pea plant with wrinkled seeds (r).
What is the probability of producing offspring with genotype Rr?
25%
50%
75%
100%
Answer:
100%
Explanation:
Explain in simple terms the function of each organelle. Use these terms:
Nucleus _______
Mitochondrion _______
Ribosome _______
Cell membrane _______
Smooth endoplasmic reticulum _______
Rough endoplasmic reticulum _______
Golgi apparatus _______
Cytoplasm _______
Answer:
The nucleus is the control center of the cell.
The mitochondrion creates energy for the cell (powerhouse).
Ribosomes create proteins (protein synthesis).
The cell membrane is a barrier that lets certain molecules in and out of the cell.
The smooth endoplasmic reticulum is involved in metabolic processes such as synthesizing lipids.
The rough endoplasmic reticulum contains ribosomes that make proteins.
The golgi apparatus packages molecules (usually for exportation).
The cytoplasm gives the cell its shape and supports the organelles.
Explanation:
I can explain it in more detail if you would like :)
How much of the earth's oxygen does algae produce?
One Quarter
One third
One fifth
One half
Answer:
One Third
Explanation:
". Algae produces one third of all the oxygen produced by photosynthesis on Earth. "
Answer:
One third
Explanation:
Hope this helps :)
Which soil conservation method makes good use of herbicides, pesticides, and minimum tilling?
A)
windbreaks
B)
terracing
C)
no-till agriculture
D)
crop rotation
Explanation:
C, no-tilll agriculture......
How do you think Homeostasis of an organism and cell transport are connected?
Answer:
no they are not connected
Answer:
Cell transport helps maintain homeostasis because it keeps the conditions in the typical ranges within all of the cells in the organism.
Explanation:
Consider the two samples of sedimentary rock seen here.Predict which rock would be more likely to undergo physical weathering. Explain how and why.
A) Sandstone. Sandstone has more obvious layers of sediments.
B) Shale. Shale is fine grained and is more likely to dissolve in water.
C)Sandstone. Sandstone is made of large sand-like grains and is easily eroded by wind
D)Shale. Shale contains iron which is an element that easily combines with the oxygen in the atmosphere to produce rust.
Answer: A) Sandstone. Sandstone has more obvious layers of sediments.
Step by step explanation: As you take a look at the given pictures, you notice that (Sandstone) Is more closed off than (Shale). So whenever rain comes, rain will seep into the little openings of the rock shale has, causing it to break down.Same for strong wind, since shale isn't as compacted as Sandstorm, then shale will not last very long. Therefore making Sandstone being able to undergo more harsh conditions.
explain the advantage of the synaptic cleft being so small
Answer:
The size of the synaptic cleft is small which results in the neurotransmitters to pile up over time thus making the neurotransmitters' concentration increase and therefore can proceed with their function of sending nerve impulses. Hope that helped!
Explanation:
What is a SNP mutation?
Answer:
Explanation:
Single nucleotide polymorphisms, frequently called SNPs (pronounced “snips”), are the most common type of genetic variation among people. Each SNP represents a difference in a single DNA building block, called a nucleotide.Most commonly, these variations are found in the DNA between genes.
single nucleotide polymorphism
A single nucleotide polymorphism, or SNP (pronounced "snip"), is a variation at a single position in a DNA sequence among individuals.
Each SNP represents a difference in a single DNA building block, called a nucleotide. For example, a SNP may replace the nucleotide cytosine (C) with the nucleotide thymine (T) in a certain stretch of DNA. Most commonly, these variations are found in the DNA between genes.
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what is the function of DNA, and why is it called the heritable material
Answer:
DNA is an information molecule.
Explanation:
WHAT IS THE FUNCTION OF DNA?
DNA stands for Deoxyribonucleic acid.
It allows the body to tell it how to make larger proteins. It contains 46 chromosomes.Chromosomes are 1 strand of DNA. (Imagine your hair. Your whole head of hair is like DNA, if you were to pull out 1 string of hair, it would be a chromosome.)WHY IS IT KNOWN AS A HERITABLE MATERIAL?
It is known as a heritable material because your parents pass their genes onto you.
(If you cut your 1 strand of hair (chromosomes) into pieces then it would be a gene.)
Part of your fathers genes and mothers genes join to make up your DNA by passing on their genes to you.
ATTACHED: A picture of a DNA coil.
why do distantly related species in very different places sometimes share similar traits?
What is the energy released from ATP used for?
Blood pressure would be highest in the vessel labelled:
3
4
2
1
Answer:2 its 2
Explanation:
What is the image
of the point (3, 1)
translated 8 units
left and 3 units
up?
Answer:
(-5,4)
Explanation:
cuz u take 3-8 witch gives u -5 and u do 3+1 witch gives u 4
also u can take the long way and count backwards from 3
is scorpion are vertebrate or invertebrate
Answer:
invertebrates
Explanation:
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Please Help Me! I don’t know
Answer is flagellum
Explanation:
What is a tree that produces cones called?
Answer:
Gymnosperms
Explanation:
Plants w/ cones
In RNA processing, the coding sequence that remains
in the final mRNA.
A. exons
B. operon
C. genome
D. diploid
E. nucleosome
F. recessive
G. restriction enzyme
H. haploid
I. dominant
J. gel electrophoresis
Answer:
The answer is A. exons.
Explanation:
Exons-In RNA processing, the coding sequence that remains in the final mRNA.
Which has stronger bonds between atoms, salt or sugar?
Answer:
salt
Explanation: