Answer:
A hypothesis is a tentative statement about the relationship between two or more variables. It is a specific, testable prediction about what you expect to happen in a study.
Explanation:
Answer:
a testable prediction that regards the possible outcomes of a study. (aka an educated guess)
Explanation:
The initial building block in the scientific method is a scientific hypothesis. It is defined by many as a "informed guess," based on prior experience and observation. While this is true, the definition can be extended. The theory also provides an interpretation as to why the assumption could be right.
hope this helped
9. Outline the phases of the menstrual cycle, or the period in woman. please this should be at least 150 words. I will mark as BRIANILIST. thank you .
The menstrual cycle is complex and controlled by many different glands and the hormones that these glands produce.
The four(4) phases of the menstrual cycle are:
(1) menstruation.
(2) the follicular phase.
(3) ovulation .
(4)the luteal phase.
Common menstrual problems include heavy or painful periods and premenstrual syndrome (PMS).
what order do the changes in the succession of an ecosystem occur? Rearrange the boxes so that the first change to occur is on the left and the last change to occur is on the right.
Answer:
You have to add a picture of the boxes g , but heres a explantion
Explanation:
Ecological succession breaks down into three fundamental phases: primary and secondary succession, and a climax state. The study of ecological succession generally focuses on the plants present on a particular site. But animal populations also shift over time in response to the changing habitat.
____ are the small sacs that are the site of gas exchange in the lungs
Answer:
alveoli
Explanation:
They are the smallest structures in our lungs where capillaries exchange O2 and CO2 in blood.
Where is the genetic
information located in a
prokaryotic cell?
A. in a concentration of DNA known as the
nucleoid
B. inside a membrane-enclosed nucleus
C. They do not contain genetic
information.
Answer:
A
Explanation:
The genetic material resides in the nucleoid, the central area of the prokaryotic cell.
Your answer is A because since these cells don't have a nucleus like other cells, it accumulates in a concentration in the nucleoid.
Hey mates please answer this????
Answer: number 3 the answer is 19
Explanation: because through 12 to 18 your body is going through the maturing state of puberty
Answer:
# 3 the answer is 19 through 12 to 18 your body is going through the maturing state of puberty
Explanation:
How do terrestrial animals excrete carbon dioxide? pls answer asap
Sorry for the other guy. He was rude. Here's the answer:
Animals excrete CO2 by cellular respiration. Since any living things besides plants can't break down CO2, it just gets put back into the environment. I hope I helped you :)
Your hands moved the chromosomes in your models. What part of a cell did your hands
represent?
Answer:
spindle fibres
Explanation:
during mitosis/meiosis spindle fibres form and pull the chromosomes to each end
What membrane transport mechanism is used to return calcium ions to the er and what membrane protein would be used.
Answer:
Explanation:
Molecular Transport - Proteins are used to move small molecules such as calcium, potassium, and sodium ions across the membrane. - cell takes in large particles by engulfing them. Phagocytosis - "cell eating" - extensions off cytoplasm surround a particle and package it within a food vacuole and then the cell engulfs it.
how can blood grouping be used in paternity testing
Answer:
blood grouping can exclude a man from being a child's father.
Explanation:
blood grouping can provide unmistakable evidence that a male is not the father of a child. Since red cell antigens are transmitted as dominant characteristics, a infant can not have a blood group antigen that is not present in either or both parents.
hope this helped!
How do “parks for people” programs help local people and their environment at the same time?
Answer:
“parks for people” programs have several benefits for local people and their environment at the same time. Some of the benefits are as following:
it promotes conservation and environmental sustainability and encourage people for more physical activities.Plant more trees in the parks that makes people healthierCommunity Gardens are present in parks for Healthconserve the free land for future generations as well.Greenery around the park helps people to do meditation and coping with mental stress.It reduces air pollution and improve mental health of people.Greenways encourage people come in parks and improve social health of the community.It provide habitat to birds and small animals as squirrels and provide a complete natural environment to local people.Hence, “parks for people” programs promotes environmental sustainability as well as human well being.
Which sentence best describes evolution? Populations remain the same over time. Individuals select different food sources due to competition. Inherited characteristics within a population change over time. An individual acquires certain traits during its lifetime.
Answer:
The inherited characteristics within a population change over time.
Explanation:
The evolution is related to the changes in the inherited characteristics over time in the biological population with the successive generation. These are inherited characteristics that are based on genes and passed from generation to generation through the process of offspring during reproduction.
Evolution can occur when the natural selection and the genes drift act together at the same level. The result is that some characteristics in the generation are common and some characteristics are different in this new generation.
Answer:Option C
Explanation:
Evolution can be defined as the change in the inheritable traits over successive generations.
The most preferable characters are selected by natural selection over a period of time. The organism having the desired trait will have more chances of survival as compared to the organism having no variation.
The characters that is inherited in the population changes over time is carried to the offspring.
Hence, the correct answer of this question will be option C.
A factor that is kept the same between the control and experimental groups is called
confounding variable
dependent variable
controlled variable
SI unit
Answer:
Controlled variables
Explanation:
In a controlled experiment, the control group and the experimental groups are the same except for a factor in the experimental groups called a. variable parameter. In a controlled experiment, the factors that are kept the same between groups are called. controlled parameters.
// PLEASE ANSWER \\
What is missing in the alpine tundra that is present in the Arctic and Antarctic tundra?
a.) animals
b.) permafrost
c.) trees
d.) cold temperatures
Answer: B. Permafrost.
Explanation: Unlike the Arctic and Antarctic tundra, the alpine tundra does not have a layer of permafrost.
Select the correct compound. Reactants undergo chemical reaction to form products. This chemical equation represents one such reaction. The coefficient for one of the reactants or products is incorrect. Which part of the chemical equation is incorrect?
Answer:
it will be the products
Explanation:
because, it is the chemical reaction which form the products so you can't say that the product was incorrect it is rather the reaction . I hope you now understand thank you
Brainliest + 20 points!! (for people who are good at science)
A population of beetles is kept in a controlled ecosystem. No beetles are
allowed to enter or leave. The graph below shows the population of beetles.
Beetle Population
с
Population size
Pв
Time
Which best describes the ecosystem at Point C?
O A. There are plenty of resources.
B. Population growth is exponential
O c. The beetles are competing for resources
O D. It has not reached carrying capacity
Answer:
The correct answer is option C.
Explanation:
The graph shows that a controlled population of beetles, where other individuals do not leave or enter, experiences progressive growth from point A to C and plateau over time. This is because the population has sufficient resources to guarantee their development, the birth rate increases than the rate of mortality and there is no competition for these resources.
The adequate amount of resources allows that at point C, the carrying capacity is almost reached, which is the result of competition among members of the same species, which ensures that the net population growth rate is going to decrease or go stable due to limited resources..
Answer:
C. The beetle are competing for resources
Explanation:
I just took the quiz
Faster growing trees demand for wood can be met by trees that grow faster than average. Genetic engineering has produced trees that can ward off biological attacks, grow more quickly and strongly and creat better wood than trees that are not genetically modified. Do you think this is a good thing? Why or why not?
Answer:
Well, on one hand, this is a good thing as negative effects of the high demand for wood such as deforestation can be minimised. This will also sustain the supply of wood for several applications. However, there could be negative consequences of propagating such genetically-modified trees, which were not stated or are not yet known. For instance, the trees could be extreme soil nutrient consumers—depleting soil nutrients at a faster rate than they can be replenished and rendering such soil infertile in a short period.
Which of the following are characteristics of all fungi? (Choose all that apply) heterotrophic mode of nutrition prokaryotic cell type non-motile multicellular organization
Which of the following would have resulted from the functions of
prokaryotes on early Earth?
more carbon became present in Earth's soil
more nitrogen gas became present in the atmosphere
less sulfur became present in Earth's soil
more oxygen gas became present in the atmosphere
Answer:
more carbon became present in Earth's soil, I think that but not sure
Work can_____ energy between objects and can cause a change in the form of energy
Answer:
Transfer??
Hope it helps :)
Which explanation identifies correctly how the G protein-linked receptors are similar?
Do you have the answer options? Then I can help you out.
PLZ HELP!!!!!!!! Water is a solute. yes or no?
Answer:
no. Water is a solvent
Explanation:
A solute is, for example, salt.
Salt can dissolve is water
Which of the following is not a function of carbohydrates?
A) storage
B) energy
C) structure
D) genetic material
Answer:
A) Storage
Explanation: Hope it helps!!
Starch is the primary energy source in most populations, but it must first be dissolved before it can be absorbed. Thus, option A is correct.
What is the role of carbohydrate in the metabolism?Sugar molecules make up carbohydrates, or carbs. Carbohydrates are one of the three primary nutrients included in foods and beverages, along with proteins and fats.
Because they play a part in several biosynthetic pathways and the creation of energy, carbohydrates play a significant function in metabolism.
Glucose is created by your body's breakdown of carbs. The body converts carbohydrates into glucose, a form of sugar.
At every stage of life, carbohydrates, commonly referred to as carbs, are essential. They are the main energy source for the body and the preferred energy source for the brain.
Therefore, storage is not a function of carbohydrates.
Learn more about carbohydrates here:
https://brainly.com/question/9505966
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What is the percent by mass of sodium (Na) in
sodium chloride?
Answer:39%
Explanation:
How is sleet different from freezing rain?
A. Sleet occurs above zero degrees Celsius, while freezing rain occurs below zero
degrees Celsius.
B. Sleet remains a liquid, while freezing rain becomes a solid while falling to Earth.
C. Sleet is composed of small particles, including dust and pollutants, while freezing rain
is pure water.
D. Sleet freezes in the air, while freezing rain freezes on contact with the ground.
Answer:
The answer is D.
Explanation:
Sleet freezes in the air, then falls to the ground as frozen raindrops.
Answer:
B. it remins a liquid ,while freezing rain becomes a solid while falling to earth
to prevent cross-contamination after preparing raw meat sanitize food-contact surface using a what
Answer:
cloth stored in clean sanitizer that is only used to clean up after raw meat
Explanation:
raw meat can cause diseases in humans, so using cleaning materials for raw meat only is important to avoid cross-contamination
What are the pros and cons of having the digestion be slower and over distance, as opposed to being quicker and over shorter distance with slightly less absorption?(pls help me)
Answer:
idk
Explanation:
Jacqueline is trying to draw an image of a cell in telophase. Which describes what she should draw
a cell with chromosomes together in the nucleus
a cell with two distinct nuclei
a cell with chromosomes pulling apart
a cell with chromosomes lined up in the middle
Answer:
B- a cell with two distinct nuclei
Explanation:
Hope this helps! Have a nice day/night! <3
What is your favorite part of the cell and why?
Answer:cell membrane
Explanation:simply
Answer:
mitochondria
Explanation:
Because it is the power house of the cell and its the most important part.
Why are the plasmid vector and EcoRI the appropriate choices for the creation of a recombinant plasmid containing the kanR gene?
Answer:
Production of these sticky ends is another feature of restriction enzymes that makes them suitable for recombinant DNA technology. ... Hence, if both vector DNA and donor DNA are cut with EcoRI, the sticky ends of the vector can bond to the sticky ends of a donor fragment when the two are mixed.