Answer:
Scientists understood that species share a common ancestor.
Explanation: i just took a quiz and got it right
5. Scientists have studied glaciers in Greenland as evidence of global warming. One team of scientists predicts that glaciers are melting at an accelerated rate. The scientists collect the same types of data on the same glaciers on the same dates each year for ten years. The scientists conclude that the glaciers have decreased in mass and increased their velocity toward the sea each successive year. Which of the following statements best evaluates the process that the scientists used? The process is a flawed experiment because the variables are not controlled. b. The process is a valid experiment because there is an independent variable and a test variable. The process is a flawed investigation because the investigators did not begin by forming a hypothesis. d. The process is a valid investigation because scientists used systematic methods for collecting and analyzing information. C.
answer:
D.
Explanation:
hope it helps!!!!!!!!!!!!!!!
Answer:
d the process is a valid investigation because scientists used systematic methods for collecting and analyzing information
what describes each hydrogen bond?
Answer:
A hydrogen bond is a type of attractive (dipole-dipole) interaction between an electronegative atom and a hydrogen atom bonded to another electronegative atom. This bond always involves a hydrogen atom. Hydrogen bonds can occur between molecules or within parts of a single molecule.
Which of the following limiting factors is intensified as the population size increases? D disease tornado D fire unseasonable hot temperatures hurry plz
Answer:
Disease
Explanation:
More people that catch the disease, the more people get it because there is more to spread toword
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Answer:
d: density
Explanation:
more dense sinks, less dense floats
Answer:
D density
Explanation:
for example oil is less dense than water and thus it is does not mix with water
11. The random movement of particles like O2, CO2, or H2O across the membrane is called...________________.
Answer:
diffusion
Explanation:
these particles are in gases and so gases move from an area of high concentration (outside membrane) to an area of low concentration down a concentration gradient
NEED HELP ASAP * is my answer
Scientists are studying compounds in a newly discovered rain forest plant. The plant produces an unusual substance that local people say acts as an anesthetic. One scientist tested the substance with the chemical indicator iodine.
If the test is negative, which type of macromolecule is not present in the substance?
nucleic acid
carbohydrate
protein
lipid
Answer:
protein
Explanation:
Answer: The macromolecul that is not present is carbohydrates
Which of the following would be considered a competitor or Corals and a direct threat to coral reefs?
Zooxanthellae
Green Algae
Crown of Thorns Sea Star
Coralline Red Algae
Rainbow Parrot Fish
Answer:
Rainbow Parrot Fish
Explanation:
Rainbow Parrot Fish is an herbivore and it is considered as competitor of corals and a direct threat to coral reef because Rainbow Parrot Fish majorly source of feed is algae which result in missing of lots of algae in corals colony. They consume most of the coral in the coral reefs with their beak like teeth therefore resulting in competition and not enough available algae source for corals. After feeding on algae , they also graze on corals in Coral reefs.
CONCLUSIONS: Genetic counseling is useful in predicting the probability of a child being born with a Mendelian inherited trait. Sickle cell anemia is caused by a recessive allele. A couple would like to know the chances of their child having sickle cell anemia. Parent #2 has the disease; parent #1 does not. Based on phenotype, parent #2 would have the genotype, ss. Parent #1 could be genotype, SS or Ss. Punnett Squares have been set up for crosses using both possible genotypes of parent #1. Should the couple be concerned that their child may have sickle cell disease? Why or why not?
Answer:
Yes, if parent 1 is Ss then there is a 50% chance the child will have it.
Explanation:
The concentration of the solute in the solution is the same as in the cell
I just bombed this test and i have 1 retake left. please help!!
Answer:
hydrolysis
Explanation:
Dephosphorylation is the removal of a phosphate (PO43−) group from an organic compound by hydrolysis, so therefore hydrolysis is your answer.
Which statement does not serve as evidence for the theory of
plate tectonics?
A Earthquakes and eruptions most often occur along plate
boundaries.
B
Sea-floor rock has magnetic patterns and is youngest near
mid-ocean ridges.
© Radiometric dating shows that rock on Africa and South
America formed at the same time.
D The sea-floor is older than the continental crust.
Answer: B
Explanation:
how do you inquire data in a certain field of study?write your top three methods and
describe each
Answer:
a review of published literature (secondary data collection)carry out interviewsperform a surveyExplanation:
1. Review published literature: This method involves reading through already published works containing meaning data about the particular field of study. For example, you read through textbooks, past newspapers, magazines, academic papers, etc.
2. Carry out interviews: This simply requires face to face or a virtual one on one interactive session with your respondents in other to record the data they provide.
3. Perform a survey: A survey here implies that issuing out a paper-based questionnaire or an online questionnaire (form) to be filled by the subjects of the research.
The top 3 methods that i use to inquire data in a certain field of study are;
1) Interviews
2) Questionnaires and Surveys
3) Observations
Methods of Collection of DataThere are different ways of collecting data for an experiment or research or study but my 3 top methods are as follows;
Interviews; Interviews are basically a structured conversation whereby the person seeking for data asks questions from other people who provide the required answers.Questionnaires and surveys; A questionnaire is simply any written set of questions that are targeted at seeking responses from participants, while a survey includes both the questionnaires and the process of collecting, aggregating, and analyzing the responses from those questions.Observation; This is primarily an effective research technique whereby i observe the ongoing behavior/response of certain individuals or participants to make a conclusion or inference.Read more about Collection of Data at; https://brainly.com/question/8100970
Describe different ways that cell shape can be modified so that diffusion time will be decreased to support life processes.
In AB blood, the A and the B alleles have?
Answer:
In AB blood, the A and the B alleles have?
Explanation:
They have codominance.
How is wastewater treated
Answer:
Wastewater treatment The major aim of wastewater treatment is to remove as much of the suspended solids as possible before the remaining water, called effluent, is discharged back to the environment. As solid material decays, it uses up oxygen, which is needed by the plants and animals living in the water.
Explanation:
briefly explain the relationship between cells, organs, and tissues
Answer:
In the human body, cells are the basic units of life. Groups of cells working together for a specific function form tissues. Organs are two or more tissues operating together. Even separate organs work together, forming body systems.
Explanation:
I hope this helps you out and if your feeling generous plz mark brainliest it helps me a lot thank you:)
Answer:
The body has levels of organization that build on each other. Cells make up tissues, tissues make up organs, and organs make up organ systems.The function of an organ system depends on the integrated activity of its organs.
Explanation:
How much do you need to drink?
About 15.5 cups (3.7 liters) of fluids a day for men. About 11.5 cups (2.7 liters) of fluids a day for wome
Choose true or false for the following statements regarding human genetic diseases.
1. Genetic diseases are spread by shared environmental conditions.
True
False
2. Genetic disorders are more common in families with one affected member as compared to the general population.
True
False
3. Both members of identical and fraternal twin pairs have the same likelihood of expressing the same genetic disease.
True
False
4. Genetic diseases occur at the same rate in all human populations.
True
False
5. Most genetic diseases have a specific age of onset.
True
False
6. Many human and animal genetic disorders share similar characteristics
True
False
Answer:
1. False
2. True
3. False
4. False
5. False
6. True
Explanation:
1. Remember, the term Genetic diseases implies that they are diseases inherited genetically. Thus, environmental conditions have no direct influence on the spread of genetic diseases.
2. We can make this conclusion because research has shown that genetic disorders are more common in families with one affected member as compared to the general population. In other words, the family's medical history is part of the determinant factor.
3. Some recent studies have shown that both members of identical and fraternal twin pairs do not have the same likelihood of expressing the same genetic disease.
4. Genetic diseases do not occur at the same rate in all human populations. Researchers often make reference to findings discovered from surviving victims of the Hiroshima nuclear bomb which is said to be the cause of some genetic diseases. Also, the sickle cell genetic disease rate of occurrence is believed to be high in Africa than in North America.
5. Scientists believe that there is no specific age of onset of genetic disease. That is to say, they may appear within an age range but not a specific age.
6. Indeed, many human and animal genetic disorders share similar characteristics . A good example is the albino genetic order in humans has been discovered to share similar characteristics that is found in animals.
Which of those ancient populations is the most likely to have contributed significantly to the bottleneck effect in the YDNA variation observed across much of Eurasia?
1. Yamnaya
2. Denisovans
3. Basal Eurasians
4. Ancient North Eurasians
5. Gravettians
Answer:
The correct answer is "Yamnaya".
Explanation:
In genetics, a population or genetic bottleneck is defined as a reduction on the size of a population as a result of an environmental effect or human intervention. Regarding the Y chromosome bottleneck, the Yamnaya is an ancient population that contributed the most due to its sex-biased and stratified culture. The Yamnaya were violent and left behind many male skeletons, where just few type of persons were able to reproduce.
If water were a nonpolar molecule,how would it’s properties be different
Would the construction of this master planned community impact the carrying capacity of the states ecosystem?
Answer:
To bulid. This building will help people and bring high quality
Explanation:
It could provide some kind of system. I support the to bulid and one piece of evidence that supports my claim is it could help people with a type of system. The building can provide help for people.Also can provide lots of good things to come with it.
Cancer cells are often a result of the disruption of what process in cells
Answer:
Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.
Explanation:
What is the relationship between survivorship curves and reproductive strategies?
Answer:
Reproductive strategies are not an either/or sort of affair; some organisms fall somewhere between semelparity and iteroparity reproduction. In addition to various reproductive strategies, organisms differ in their survivorship strategies. Some organisms are at high risk of dying early in life, but if they can survive long enough, they have a decreasing probability of dying as the years go on. Well, to a point anyway. Other organisms have a steadily increasing probability of dying while still others live for a long time with the probability of dying only increasing dramatically after a certain (often old) age.
I really hope this helps, stay safe!
A structure made up of two or more types of tissues that performs a specific set of functions is at what level of organisation
Answer:
Organ
Explanation:
Cell, tissue, organ, organ system, organism
HURRY PLEASE HELP!!! Which statement best explains why calcium is less
reactive than potassium?
A. Potassium is softer than calcium
B. Calcium has the same number of neutrons as potassium
C. Calcium has one more proton than potassium
D. Potassium has only one valence electron while calcium has two
Answer:
Help me I help you
Explanation:
OHELP PLEASE HELP PLZ HELP
Light Dependent
light activated clorophil splits the H2O molecules
released to environment
o H+ is 'carried by electron carriers (NADP+) to light-independent reaction
O ADP + P is turned into
Light Independent
o Uses
Uses the
from environment
(carried by NADPH) and
from the light dependent reaction as source
O
of energy
Builds CH1,0 molecules
(aka, glucose/carbohydrates/sugars)
Answer:
Light-dependent
Sun light activated chlorophyll splits the H20 moleculesOxygen is released to the environmentH+ is 'carried by electron carriers (NADP+) to light-independent reaction ADP + P is turned into ATPLight-independent
Uses carbon dioxide from the environmentUses the electrons (carried by NADPH) and ATP from the light dependent reaction as source of energyBuilds CH1,0 molecules (aka, glucose/carbohydrates/sugars)Explanation
The light-dependent reactions of photosynthesis require energy from the sun to split a molecule of water into hydrogen and oxygen. The oxygen is released and the hydrogen ions are used as energy for the next steps, as is ATP.
In the light independent reactions, sugar is made from carbon dioxide using the energy from the light-dependent steps
During passive transport, substances travel___The concentration gradient
Answer:
During passive transport, substances travel with the concentration gradient.
During passive transport, substances travel with the concentration gradient.
What is passive transport?Passive transport is defined as the type of the membrane transport that has to be required energy that has to move the substances just across the cell membrane. In place of using the cellular energy just like in the process of the active transport as well as passive transport that relies on the second law of the thermodynamics that has to drive the particular movement of the substances just across the cell membranes.
During passive transport, substances travel with the concentration gradient. In place of using the cellular energy just like in the process of the active transport as well as passive transport that relies on the second law of the thermodynamics that has to drive the particular movement of the substances just across the cell membranes. Passive transport is defined as the type of the membrane transport that has to be required energy that has to move the substances just across the cell membrane.
Therefore, Passive transport is defined as the type of the membrane transport that has to be required energy that has to move the substances just across the cell membrane.
Learn more about passive transport here:
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1. John is suffering from autosomal dominant deafness (D) and his wife Mary is normal.
Considering complete penetrance for this trait (P=1), what is the probability that this
couple's first child would have this disorder?
Answer:
Autosomal dominant inheritance: A person affected by an autosomal dominant disorder has a 50 percent chance of passing the mutated gene to each child. The chance that a child will not inherit the mutated gene is also 50 percent. However, in some cases an autosomal dominant disorder results from a new mutation that occurs during the formation of egg or sperm cells or early in embryonic development. In these cases, the child's parents are unaffected, but the child may pass on the condition to his or her own children.
Why do plants die if they get extra water
Answer:
Over-watering severely limits, even cuts off the supply of oxygen that roots depend on to function properly, meaning that plants do not get adequate oxygen to survive. Furthermore, too much water can also lead to root rotting and the irreversible decay of roots.
Explanation:
4. In which International Metric units are length measurements expressed?
Answer:meters
Explanation: