The National Cancer Institute (NCI) has screened approximately 35,000 plant species for potential anticancer activities. Among them, about 3,000 plant species have demonstrated reproducible anticancer activity
Conducting experiments,
using inquiry, and asking testable questions are processes that are used by
Answer:
scientists
Explanation:
just is
How do we determine climate change (amount of time, trends, etc)?
Answer:
xlimate change is when the climate change due to green house effect
Read each research question below. Identify the IV, DV, and CV of each experiment.
What amount of sunlight makes pea plants grow tallest?
IV:
DV:
CV:
Which type of soda has more sugar: Brand X, Brand Y, or Brand Z?
IV:
DV:
CV:
Is the height of a ball’s bounce affected by the height from which the ball is dropped?
IV:
DV:
CV:
Which battery will last the longest: Superlast or Energy Star?
IV:
DV:
CV:
5. Is the water temperature of Lake Michigan affected by the depth of water?
IV:
DV:
CV:
The factors that are kept the same in an experiment. ________
The is also known as the responding variable. ________
This is the one thing that is changed by the experimenter. _______
This is also called the manipulated v
Answer:
This question has many subsections, the answers to the questions are below
Explanation:
Independent variable (IV) is the variable that is changed or manipulated by the experimenter while the dependent variable (DV) is the variable that is being measured in an experiment. The control variable (CV) is the variable that is kept constant throughout the experiment. The DV, IV, and CV for the following experiment are:
Independent variable (IV) is the variable that is changed or manipulated by the experimenter while the dependent variable (DV) is the variable that is being measured in an experiment. The control variable (CV) is the variable that is kept constant throughout the experiment. The DV, IV, and CV for the following experiment are:
1. What amount of sunlight makes pea plants grow tallest?
IV: Amount of sunlight
DV: Height of pea plant
CV: Same pea plant, Water
2. Which type of soda has more sugar: Brand X, Brand Y, or Brand Z?
IV: Type of Soda
DV: Sugar content
CV: Same volume of soda
3. Is the height of a ball’s bounce affected by the height from which the ball is dropped?
IV: Height from which ball is dropped
DV: Height of ball's bounce
CV: Same weight of ball, same size of ball
4. Which battery will last the longest: Superlast or Energy Star?
IV: Type of battery
DV: longevity of battery
CV: Same usage period
5. Is the water temperature of Lake Michigan affected by the depth of water?
IV: Depth of water
DV: Water temperature
CV: Same lake
The factors that are kept the same in an experiment is the CONTROL VARIABLE
The is also known as the responding variable- DEPENDENT VARIABLE
This is the one thing that is changed by the experimenter- INDEPENDENT VARIABLE
This is also called the manipulated variable- INDEPENDENT VARIABLE
what three animals are closley related to a tiger
Answer:
The tiger's closest living relatives were previously thought to be the Panthera species lion, leopard, and jaguar.
Explanation:
Results of genetic analysis indicate that about 2.88 million years ago, the tiger and the snow leopard lineages diverged from the other Panthera species, and that both may be more closely related to each other than to the lion, leopard and jaguar. The geographic origin of the Panthera is most likely northern Central Asia or the Holarctic region. The tiger–snow leopard lineage dispersed in Southeast Asia during the Miocene.
Panthera zdanskyi is considered to be a sister taxon of the modern tiger. It lived at the beginning of the Pleistocene about two million years ago, its fossil remains were excavated in Gansu province of northwestern China. It was smaller and more "primitive", but functionally and ecologically similar to the modern tiger. It is disputed as to whether it had the striping pattern. Northwestern China is thought to be the origin of the tiger lineage. Tigers grew in size, possibly in response to adaptive radiations of prey species like deer and bovids, which may have occurred in Southeast Asia during the Early Pleistocene.
It is difficult to make conclusions about scientific data collected from fossilized remains because the data
Answer: Fossils are rare because most remains are consumed or destroyed soon after death. Even if bones are buried, they then must remain buried and be replaced with minerals. If an animal is frozen like the baby mammoth mentioned above, again the animal must remain undisturbed for many years before found.
Explanation:
How do scientists communicate data accurately with one another?
A. They multiply their measurements together.
B. They use a universal system of units.
C. They average their measurements.
D. They make flash cards.
Answer:
b
Explanation:
they use a universal system of units
Answer:
Its B. They use a universal system of units.
Matthias Schleiden proposed that a plant grows by the division of cells and is composed entirely of cells. Which component of the cell theory is supported by Schleiden’s contribution?
The activity of an organism depends on the energy it consumes.
The activity of an organism depends on the energy it consumes.
All living organisms are made up of one or many cells.
All living organisms are made up of one or many cells.
All cells are physically and chemically similar.
All cells are physically and chemically similar.
Energy flow occurs within cells.
Answer: All living organisms are made up of one or many cells.
Explanation:
In 1830s, botanist Matthias Schleiden studied the tissues individually and proposed the cell theory for the first time. According to him all the living beings are made up of cells and cell is the basic unit of life.
As according to him in the cell division he was able to observe that the plants are made up of cells. This observation is indicating towards the fact that all living organisms are made up of one or many cells.
which best explains the mechanism that allows for cell differentiation ?
Answer:
Cellular differentiation
Explanation:
The cytoplasm in a particular cell is contains 5% salt with the rest being
water. The cell is placed in a solution of 25% Salt. Which way does the water
flow and how does this affect the cells appearance?
3 These diagrams show where seeds from two different
plants were found
A. Which plant uses the wind to spread its seeds?
B. Which plant's seeds are most likely to be spread
by animals? .....
Answer:
A: plant A
B: plant B
hope it helps you
How are photosynethis and cellular respiration similar? And how are they different ?
Answer:
Photosynthesis, carried out by sunlight-reliant producers, requires carbon dioxide and releases oxygen and glucose, while cellular respiration (carried out by animals) requires oxygen and releases carbon dioxide and ATP. However, they both are biological processes that supply the organism in question with energy.
Explanation:
Answer:
The answer will be listed below.
Explanation:
The two processes, photosythesis and cellular respiration, are similar in that they both produce energy. These are ways for organisms to produce their food. Although, these two processes are completely different from each other. Cellular respiation occurs in all living organisms while photosythesis occurs only in phototrophs. Photosythesis is the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into ATP, and then release waste products.
Which of the following adaptations enables deciduous trees to produce more food?
a.
thick bark
b.
stretching toward the sun
c.
leaf loss
d.
color change
im pretty sure its b, but im just making sure
Answer:
yes you are correct the answer would be "B"
Explanation:
Please help. Worth 10 points.
Answer:
i think its the 2.
Explanation:
im sure of it. thinking of formulas.
Answer:
I think it is 3
Explanation:
Organisms belonging to which kingdom are all autotrophs
To access the Hyperlink icon, you will need to navigate to the _____ tab.
Answer:
Insert tab
Explanation:
Answer:
The insert Tab
Explanation:
Are proteins biotic or abiotic? Explain your reasoning. I WILL MARK BRAINLIEST!
what takes place in each step of the diagram
1)What is a trophic level?
2) explain how energy travels through food web ? your response must include the following terms:
Decomposer,producer, primary, consumer , 10%.
3)why is energy reduced at successive trophic levels?
1. The trophic level is something's position in the food chain/food web.
2. Energy travels through out the food chain because all the animals eat each other and take each other's energy. The decomposers are eaten, the producers are eaten, but the primary consumers get all the energy.
3. The energy decreases because each animal decomposes the energy a little, before getting eaten. By the time the food reaches the top of the web, the energy is barely left.
Hope this helps!
true or false? diffusion involves the movement of gases and solutes
Answer:
true
Explanation:
How many genes make up the human genome?
four: adenine, thymine, guanine, and cytosine
23 pairs of genes
20,000–25,000 genes
3 billion genes
Answer:
The correct answer is - 20000, 25,000 genes.
Explanation:
Genes are made by the functional and physical unit of the heredity called DNA. Genes are the precursors or encoded instructions to make a specific protein. Genes can be small or large depending on the DNA bases present in it which can be hundreds to millions in numbers.
According to the Human Genome Project, which found out the total genes present in a human genome between 20000 to 250000 genes approximately.
Thus, the correct answer is - 20000, 25,000 genes.
Genes are the hereditary units, which are present in the coded segments of the DNA. Genes carry the information from parent to daughter cells.
There are 20,000 to 25,000 genes that make up the human genome.
Human Genome Project was conducted for several years, the result obtained was:
The human genome project was an international scientific project, which aimed at determining the base pairs that make up the human DNA.The project estimated that humans consist of 20,000 to 25,000 genes in their genome. Each individual inherits the copies of genes from both parents.Therefore, the correct answer is Option C.
To know more about the human genome project, refer to the following link:
https://brainly.com/question/2951162
Which organism develops breathing organs from pharyngeal arches?
A.
shark
B.
spider
C.
sea star
D.
sea horse
thank you!! :))
Answer:
a ) shark
____________
Which surface erosion event does the most short- term damage?
Loss of topsoil from farmland.
Movement of rocks by glaciers.
Occurrence of mud slides after heavy rains.
Pollution of water sources caused by runoff.
Answer:
Occurrence of mud slides after heavy rains.
Explanation:
Soil erosion is defined as the removal of top soil from the land and it affects the fertility of the soil. It is also known as soil degradation.
Soil erosion has both short-term and long-term damage. Short-term damage of erosion includes the occurrence of mudslides after heavy rains which is called landslide. It is a short-term damage because landslides took long-duration to happen and when happened it can be shortly recovered using machines.
Hence, the correct answer is "the Occurrence of mudslides after heavy rains."
If you have a sinus infection, many times you feel pressure in the check area. What is the regional term for this area?
Answer:
Thyroid
Explanation:
What happens to the matter and energy in fruits as they decompose.
Please help! I really need help in science and no one in my family can help me! I will ask more science questions after this just in case you can help with those too
Answer:
During the process of decomposition, the decomposers provide food for themselves by extracting chemicals from the dead bodies or organic wastes; using these to produce energy. The decomposers will then produce waste of their own. In turn, this will also decompose, eventually returning nutrients to the soil.
Explanation:
(Environmental) Southern England What are the major concerns about soil erosion on arable land in Britain?
Answer:
Soil nutrient loss
Algae blooms
Pollution of water ways
Explanation:
Soil nutrient loss - a major concern as when soil erodes, this results in nutrient run off. Heavy rains can "wash away" essential nutrients within the soil therefore reducing the fertility of the land.
Algae blooms - when nutrients run off soil as a result of soil erosion they can leech into nearby fresh stream and even into salt water marine environments. This large increase of nutrients results in algae thriving and forming a layer across the top of the water. This reduces the oxygen and sunlight available to other marine plants and essentially suffocates plant and animal species.
Pollution of water ways - The sediment of soil that is eroded makes its way into fresh water ways can not only "bury" plant species and reduce biodiversity but it also reduces the water quality. It can introduce pathogens to the water from liverstock farming as well as introducing pesticides that may be harmful to wildlife.
what blood types are not. possible for a child if one parent has type.A blood and the other type B?
A.Type B
B.Type A
C.Type O
d. all blood types are possible
A mineral forms in water heated by magma inside Earth. Which statement best describes this mineral? The mineral formed through evaporation. The mineral crystallized from molten material. The mineral formed when a hot water solution cooled. The mineral likely has all the same properties as the surrounding rock.
Answer:
The mineral formed when a hot water solution cooled.
Explanation:
The mineral is formed from hot water solution heated by magma in the Earth when the water is cooled because when hot water solution is heated by magma in the Earth, it begin to cool underground, then the elements and compounds present there move out of the water solution , after these, these elements and compounds then undergo crystallisation and form minerals . Pure metals that crysralise from hot water solution is called Veins.
A mineral forms in water heated by magma inside Earth, when the hot water solution cooled.
Minerals formed from heated water by magmaA mineral is formed from hot water solution heated by magma in the Earth when the water is cooled.
When hot water solution is heated by magma in the Earth, afterwards it begins to cool underground, then the elements and compounds present in the solution move out of the water solution.
After this process, the separarted elements and compounds undergo crystallisation and form minerals. The minerals formed in this process are called veins.
Learn more about hot water solution here: https://brainly.com/question/26757806
#SP J5
which best describes the big bang theory
Answer:
The expansion and cooling of the universe from an originally hot and dense state.
Answer: D. The universe formed during a single event in which all matter and energy suddenly expanded from an extremely small, dense, and hot point of pure energy called a singularity.
How will the grazing animals prevent or control further colonization by other plants?
(I hope someone could please help, biology is my weakest subject. )
Answer:
they control the growth of non-native grasses and Herbs so that other desirable plants can coexist
a group of organisms of the same species linving in an area is called
Answer:is called a pack
Explanation: