Answers
Answer:
J.J Thomas - B
John Dalton - A
Ernest Rutherford - D
James Chadwick - C
Related Questions
How does land development destroy ecosystems? It increases human carrying capacity too rapidly. It converts them into residential or agricultural areas. It forces humans to import non-native plants and animals. It expands the natural range of native wildlife species.
Answers
Answer:
It converts them into residential or agricultural areas
Explanation:
The land development has been destroying the ecosystems for quite some time now. In order to satisfy their own needs, the humans have been merciless toward the environment. Lot of forests have been cut down, wetlands dried out, and grasslands converted. The main reasons have been to convert these areas into residential or agricultural areas. In the past two centuries though, there has also been another major reason, and that is the industrial development, and in order for the people to make space for the industry and to get to resources for it to run, they have destroyed countless ecosystems.
Answer:
It converts them into residential or agricultural areas
Explanation:
what are the first cells to arrive at a bacterial infection
Answers
Answer: neutrophils i hope this helps
Answer:
Neutrophils
Explanation:
High neutrophils in the blood count can be a sign of bacterial or fungal infection. That's because neutrophils are the first cells to reach a bacterial infection. Neutrophils are a type of white blood cell, blood defense cells that participate in fighting infections caused by fungi and bacteria.
However, the number of neutrophils can also be high in cases of inflammation, tumor, bleeding, use of certain medications, among others.
Neutrophil levels may also be elevated in some temporary situations, such as infarction, after intense physical exercise, postoperatively, medication use (lithium, corticosteroids, epinephrine), smoking, pregnancy and newborns in the first days after delivery.
What is the gel-like fluid that fills the cell and surrounds the organelles?
Answers
Answer:
The cytoplasm.
Explanation:
This gel-like fluid helps the cell keep its shape and allows substances to move around the cell.
Answer:
The correct answer will be- Cytoplasm.
Explanation:
The cytoplasm is a transparent, clear and gel-like material enclosed by the cell membrane of the cell.
The cytoplasm is made up of main water but contains important constituents required by the cell-like enzymes, salts, organic molecules and mainly cell organelles.
The cell organelles always remain suspended in the cytoplasm where it acts as a site for a various metabolic reaction like transcription and glycolysis.
Thus, the cytoplasm is the correct answer.
In order for you to hold your breath, your nervous system must send messages to your
A. Respiratory System
B. Digestive System
C. Heart in your cardiovascular System
D. check in your muscular System
Answers
Answer:
A. Respiratory System
Explanation:
Answer:
your answer is A!
Explanation:
Consider the following hypothesis:
Soybean plants produce more soybeans when given nitrogen-nich fertilizer.
Which of these should the experiment do in order to best test this
hypothesis?
A. Compare the heights of soybean plants grown with and without
nitrogen-rich fertilizer
B. Compare the masses of soybeans obtained from plants grown
with and without nitrogen-rich fertilizer
C. Measure the amount of nitrogen in the soil before and after
harvesting soybeans
D. Measure the rate of water absorption by soybean plants before
and after receiving fertilizer
Answers
Final answer:
To test if nitrogen-rich fertilizer increases soybean production, compare the masses of soybeans from plants grown with the fertilizer to those without it, and control other variables. So the correct option is B.
Explanation:
To best test the hypothesis that soybean plants produce more soybeans when given nitrogen-rich fertilizer, you should compare the masses of soybeans obtained from plants grown with and without nitrogen-rich fertilizer. To conduct the experiment:
Identify two groups of soybean plants, one as the experimental group that will receive the nitrogen-rich fertilizer and one as the control group that will not receive the fertilizer.Ensure that all other variables, such as the amount of water, sunlight, and the type of soil, are kept constant across both groups.At the end of the growing season, harvest the soybeans from both groups and compare the masses of the harvested soybeans to see which group produced more.By measuring the mass of soybeans rather than other factors such as height or water absorption rates, you are directly assessing the outcome relevant to the hypothesis.
Why does sexual reproduction result in more genetic diversity than asexual reproduction
Answers
Answer:
Sexual reproduction provides genetic diversity because the sperm and egg that are produced contain different combinations of genes than the parent organisms
Explanation:
Answer:
Sexual reproduction provides genetic diversity because the sperm and egg that are produced contain different combinations of genes than the parent organisms. ... Each resulting cell, or gamete, resulting from meiosis has only half the amount of DNA as the parent cell
Explanation:
Why do scientists use tables and graphs
Answers
Hello There!
Scientists use tables and graphs because it is a visual representation of their results. Also, with tables it keeps their data organized. If a scientist is dealing with certain percents, a pie chart would come in handy.
how do air masses interact to form a cyclone?
Answers
Answer:
Air moves in a spiraling pattern from centers of high pressure toward centers of low pressure.
Explanation:
Answer:Air moves in a spiraling pattern from centers of high pressure toward centers of low pressure.
Explanation: :)
Hemophilia is an X-linked recessive disorder.
What is the probability of having hemophilia for the cross that is shown in the Punnett square?
O percent
25 percent
Answers
Which of the following is most likely the result of an organism having lipids in its body
A) water cannot be absorbed through the surface of a leaf
B)human eats fruits to get a quick source of energy
C) a sheep sleeps for more hours in the winter
D) a warm river is filled with fish and algae
Answers
mark me brainliest
End result of meiosis in humans
Answers
Answer:
Mitosis is the type of cell division the purpose of which which is that two identical copies of a cell are formed. The end result is that the DNA/chromosomes replicate and one set of chromosomes, with some of the cytoplasm and its contents, goes to each new "daughter" cells.
In which specialized organ of the plant would these cells most likely be found
Answers
Answer:
a leaf
Explanation:
These cells will be found in leaf due to the presence of chlorophyll.
What type of cells does leaf have?There are two distinct kinds of photosynthetic parenchyma cells in leaves (palisade and spongy).
Mesophyll Palisade
A particular class of leaf cell created especially for photosynthesis makes up the palisade mesophyll. These chlorophyll-rich cells simply use all of their energy to produce as much sugar as they can. They discharge this sugar into the intracellular region, where it travels to the subsequent class of leaf cell.Spongy Mesophyll
The term "spongy mesophyll" refers to a loose matrix of structural mesophyll cells. Unlike the palisade cells, these cells are not precisely arranged into rows. Instead, they organize into networks and move materials to and from bundles of vascular cells. They can photosynthesize, just as palisade mesophyll leaf cells, but they also serve other purposes.learn more about leaf cells here:
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What happens to food material that cannot be digested?
It is mixed with chyme.
It is stored as nutrients.
It is eliminated as feces.
It is converted into bile.
Answers
Answer:
It is eliminated as feces.
Explanation:
It is eliminated as feces because it has to get out of your body.
hope this helps
Answer:
It is eliminated as feces
Explanation:
Food material that cannot be digested and absorbed are passed to the large intestine, this food, which is now Feces, is stored in the rectum until it is passed out of the body through the anus.
In each transformation of energy , some energy what?
Answers
Answer:
An energy transformation is the change of energy from one form to another. Energy transformations occur everywhere every second of the day. There are many different forms of energy such as electrical, thermal, nuclear, mechanical, electromagnetic, sound, and chemical.
Fungi are classified into how many groups?
A.
1 group
B.
2 groups
C.
3 groups
D.
4 groups
Answers
Fungi are usually classified in four divisions: the Chytridiomycota (chytrids), Zygomycota (bread molds), Ascomycota (yeasts and sac fungi), and the Basidiomycota (club fungi).
what , measurement unit represents volume?
(A) Kilometer
(B) square centimeter
(C) centigram
(D) liter
Answers
Answer:
(D) liter
Explanation:
It is the SI unit of measuring volume.
liter is the unit capacity, formerly defined as the one kilogram of water.it is used to measure volume and is equal to 1000 cubic centimeters or 1 cubic one decimeter.
Which organisms are likely to be found in level 4 of diagram?
A. Lion
B. Grass
C. Shark.
D. Frog
E. Mouse
Answers
Answer:
A. lion C. shark
Explanation:
Lion and shark are the organisms likely to be found in level 4 of diagram.
TROPHIC LEVEL:
Living organisms in their natural environment obtain food or energy source by feeding on one another. The linear feeding relationship between organisms is called food chain. In a food chain, the different levels attained by organisms involved in the food chain is called trophic level. The first trophic level is assumed by producers followed by consumers. The tertiary consumers assume the last trophic level of a food chain, which is represented by level 4 in the diagram above. Lions and sharks are good examples of tertiary consumers. Therefore, Lion and shark are the organisms likely to be found in level 4 of diagram.Learn more at: https://brainly.com/question/15948938?referrer=searchResults
what is the name for a substance formed in a chemical reaction
Answers
Answer:
Explanation:
The starting substance is a reactant but then the new substance is the product.
Answer:
Product.
Explanation:
A chemical reaction may be defined as the reaction in which a new substance will form in the reaction. The evolution of gas, change in color during the reaction and evolution of heat determines the chemical reaction.
The substance that undergoes the chemical change is known as the reactant. The reactant that finally combines into the new substance known as product. The product is the final substance formed during the chemical reaction.
Thus, the answer is substrate.
Which of these statements express a scientific theory
A.The larger of two cells probably contain a nucleus
B. Cells are the basic unit of life
C. All the tissues that make up animals consist of cells
D. A material the consists of cells came from living organism.
Answers
Answer: B) cells are the basic unit of life
Explanation:
i got it right
Which characteristic of water is most helpful to fish in a lake?
A.
Water freezes at 0°C.
B.
Water molecules are polar.
C.
Two elements make up the compound water.
D.
Frozen water floats on liquid water.
Answers
Final answer:
Frozen water floats on liquid water, providing an insulating barrier for fish in a lake.(Option D)
Explanation:
The characteristic of water that is most helpful to fish in a lake is that frozen water floats on liquid water.
When water freezes, it becomes less dense and expands. This causes it to float on the surface of the lake instead of sinking to the bottom. The layer of ice acts as an insulating barrier, providing protection for the fish living in the liquid water beneath.
Without this characteristic, the lake would freeze solid from the bottom up, making it impossible for fish and other organisms to survive.This unique property of water, where frozen water floats, not only forms an insulating barrier crucial for fish survival but also prevents lakes from freezing solid, ensuring the viability of ecosystems and the diverse organisms that rely on liquid water habitats.
In this lab, you will observe the properties of oil, cornstarch, salt, and sodium bicarbonate. You will use the properties to classify the substances as ionic and covalent. Restate this goal in the form of an investigative question.
Answers
Answer:
An investigative question for the observation can be "How to determine whether a substance is ionic or covalent?"
All biological researches are made through the process of scientific method. A scientific method starts with an investigative question based on which a hypothesis is derived. A number of qualitative and quantitative experiments are done to test this hypothesis. Based on the results from the experiments, a hypothesis is declared true or false.
Answer:
Lab Question: Based on a substance's properties, how can you determine whether its bonds are ionic or covalent?
Explanation:
Mention the correct independent variable, the substance’s properties (such as solubility, conductivity, and state of matter).
Mention the correct dependent variable, the type of bond, ionic or covalent.
This element is solid, forms the backbone of many compounds, and life is based on it. What is it?
Answers
Answer:
Carbon is your answer.
Question 10 (5 points)
Different forms of the same element that have different properties because of different atom arrangements are called_____
allotropes
carbons
silicons
graphites
Answers
Answer:
allotropes
Explanation:
The negative change found inside the plasma membrane is created by _________________.
potassium ions
sodium ions
hydrogen ions
chlorine ions
Answers
The negative charge that found inside the plasma membrane is created by movement of potassium ions.
Explanation:
The concentration of the potassium ions is very high inside the cell but low outside the cell whereas the concentration of both Sodium and chloride ions is more outside the cell but less inside the cell. Inside of the cell plasma membrane is negatively charged in spite of having large positively charged potassium ion concentration due to the presence of organic anions in large amount and leaks of potassium ions.
These anions are the charged group of the proteins and other organic molecules. As the membrane is more permeable to the movement of potassium ions outside the cell, the comparative ratio of the concentration of organic anion to cation increases with the decreasing cations concentration and causes the membrane to have a negative charge on the inside.
What are the functions of bones
Answers
Answer:
There's lots
Explanation:
Bones have many functions. They support the body structurally, protect our vital organs, and allow us to move. Also, they provide an environment for bone marrow, where the blood cells are created, and they act as a storage area for minerals, particularly calcium.
Hello There!
I broke this question down into 3 main functions of bones and will briefly explain each one.
"SUPPORT" Almost like the steel framework of a building, bones provide rigidity. This gives the body shape and supports the weight of muscles and organs. Without this, the body would collapse on itself.
"MOVEMENT" There are 3 major systems involved with the mechanics of movement. These are the "Nervous System" "Muscular System" And "Skeletal System" The nervous system send electrical impulses that activate our muscles.
"PROTECTION" Bones protect soft inner body organs from getting damaged. An example is the scull protects the brain from getting damaged.
The idea that viruses originated as genetic material that was able to move within a genome, eventually exiting a cell and entering another is the _____ hypothesis.
Answers
Answer:
Progressive hypothesis
Explanation:
According to this hypothesis, the viruses originate with a progressive process. The mobile of the moving parts of genetic material capable of moving within a genome, gained the ability to withdraw from one cell and enter into another. In other words, viruses have risen from genetic elements that have gained the ability to move between cells .
Answer:
Progressive
Explanation:
According to this hypothesis, the viruses originate with a progressive process. The mobile of the moving parts of genetic material capable of moving within a genome, gained the ability to withdraw from one cell and enter into another. In other words, viruses have risen from genetic elements that have gained the ability to move between cells .
PENN
Color blindness is a recessive trait. The gene for color blindness is on the X-
chromosome. The family tree below shows the trait of color blindness. The
only unknown is the mother in the first generation.
TO
What must be true about the mother?
O
A. She has at least one recessive color blindness allele.
O
B. She only has one X chromosome.
O
C. She is color-blind,
O
D. She has two recessive color blindness alleles.
Answers
The statement 'she has at least one recessive color blindness allele' must be TRUE about the mother (Option A).
What is chromosome X inheritance?Chromosome X is a special type of chromosome whose inheritance pattern is different from Mendelian inheritance.
Males receive only one X chromosome, whereas females receive two X chromosomes.A carrier is an individual who inherits one defective allele (in this case, the color-blindness allele).In conclusion, the statement 'she has at least one recessive color blindness allele' must be TRUE about the mother (Option A).
Learn more about X chromosome inheritance here:
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- What is one half of a duplicated chromosome called?
Answers
Answer:
It's a Chromatid.
Explanation:
Hope my answer has helped you!
A solution containing HCI would likely have
Answers
Answer:
A solution with HCl would likely have a low pH and a high pOH. Hydrochloric acid or HCl, from the name itself is acidic its pH is always below neutral pH or 7. pH is the measure of the concentration of hydronium ions (H3O+) in a solution while pOH is the measure of the concentration of hydoxide ions (OH-) in a solution. A relationship exist between the two values of a solution where pH + pOH = 14 therefore when the pH is low, consequently, the pOH is high.
Explanation:
hope this helps
A solution containing HCI would likely have a low pH and a high pOH.
How can the pH of the solution be calculated if the pOH is known?In order to calculate the pH, take the negative log of the hydronium ion concentration. To find the pOH, simply subtract the pH from 14. In order to calculate the pOH, take the negative log of the hydroxide ion concentration. To find the pH, simply subtract pOH from 14.
How is pH related to pOH?As pH increases, pOH decreases. As pH decreases, pOH increases. Knowing what ion you are measuring on which scale, will tell you whether or not the solution is acidic or basic. Because these scales are related, an equation can be used to explain their correlation.
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Which features is used to classify a rock based on its composition
The origin of the rock
The texture of the rock
The type of mineral in the rock
The shapes of the crystal in the rock
Answers
Answer:
The correct answer is "The type of mineral in the rock".
Explanation:
Rocks are classified mostly by its texture and its composition. When a rock is classified based on its composition the feature that is most used is the type of mineral in the rock. For instance, igneous rocks are made of silicate minerals, while quartz, K-feldspar, and muscovite are found in sedimentary rocks.