hheelpp the test is happennig noww
Answer:
Option A
Explanation:
Xylem is made of dead cells that transport water. Stomata are pores in leaves that help CO2 enter the plant. Chlorophyll absorbs sunlight (it cannot accept green light which is why leaves are green, cuz they reflect the green wavelenght)
When a person pulls a bow back to shoot an arrow, what type of movement are they making?
Answer:
Kinetic Energy
Explanation:
An arrow that is being pulled back is building Kinetic Energy.
Photosynthesis and ______are considered opposite reactions. The matter is _______
between each process, because the products of one reaction are the reactants of the
other reaction.
The biological information stored in organisms is in the sequence of nucleotide bases (i.s., A, T C and G) in DNA molecule. true false
Answer:
True
Explanation:
DNA: ATCG
RNA: UTCG
A friend tells you that plants only need water to grow. do you agree? explain.
Which organelle converts the chemical energy stored in food.
Answer:
Mitochondria
Explanation:
using oxygen available within the cell convert chemical energy from food to energy in a form usable to the host cell. The process is called oxidative phosphorylation and it happens inside mitochondria.
Which interaction helps stabilize the tertiary level of protein organization?.
Answer:
Interactions among R groups results in hydrophobic interactions, hydrogen bonds, salt bridges, and sulfur-sulfur covalent bonds.
Explanation:
The above listed interactions help stabilize the protien organization (R group is the main player)
how do scientists share their findings?
Answer:
The primary ways that scientists communicate research results are by publishing the results in journals, and writing reports.
Explanation:
I hope it really helps!
Answer:
The scientist will make a detailed presentation or a journal and show the world. The scientist will usually write down the procedure for it to be repeated again by other scientists.
Explanation:
Label this diagram with the 3 options
There are two main parts of the human skeleton: the __________ and _________ skeletons.
Answer:
axial skeleton and appendicular skeleton
Why is a sidereal day longer than a solar day on Venus?
Answer:
The backwards rotation makes Venus the only planet in the solar system where the sidereal day is actually longer than the solar one. The sun returns to it highest point in the sky before the planet has completed one rotation. Combining all this together leaves Venus with a solar day that takes 117 Earth-days.
Explanation:
I have some great teachers. hope this helps!
Please answer ASAP!!!
The graph below shows the number of radioactive atoms present in four radioactive materials at different time intervals. Graph showing the time in hours on x axis and the number of radioactive atoms present on y axis for four materials A, B, C, and D. Curve A is on the left of the graph with curve B on its right. Curve C is on the right of curve B and curve D is to the right of curve C. The slope of curve A is the greatest, the slope of curve B is lesser than the slope of curve A but greater than the slopes of curve C and curve D. The slope of curve C is lesser than the slopes of curve A and curve B, but greater than the slope of curve D. The slope of curve D is the least.
Answer:
Its not C I think it's B
Explanation:
I took the test and i guessed C and it was wrong but I think B makes the most sense.
I don’t need the answer, I just want to know what my teacher is expecting me to do. Am I supposed to say whether it’s multicellular or am I supposed to describe it some other way? If so, then what way?
Thanks, I just need your opinion ^^
Answer:
I think you have to describe it's features and characteristics and underline or circle the correct option f or unicellular or multicellular
Apes and chimpanzees are different species because _________________.
a. they live in different environments
b. they cannot produce offspring together
c.they have different physical features
d.they eat different foods
Answer: b
Explanation:
different species cant reproduce
Nutrients Nutrients are substances in food that supply the body with energy and raw materials needed for growth, repair, and mainteNnce. The nutrients that the body needs are water, carbohydrates, fats, proteins, vitamins, and minerals.
- Many of the body's processes take place in water. Water makes up a large part of blood and other body fluids.
- Simple and complex carbohydrates are the body's main source of energy. Complex carbohydrates, such as starches, must be broken down into simple sugars to be used for energy.
- Fats are formed from fatty acids and glycerol. Fats help the body absorb fat-soluble vitamins and are a part of cell membranes, nerve cells, and certain hormones.
- Proteins supply raw materials for growth and repair of structures such as skin and muscle. Many enzymes and hormones are proteins.
- Vitamins are organic molecules that the body needs in very small amounts. They are needed to help the body perform chemical reactions.
- Minerals are inorganic nutrients the body needs in small amounts. Examples of minerals include calcium and iron.
17. What are three ways the body loses water?
Answer:
The three ways that the body losses water are The body losses water through urinating.The body lossescwater through sweating after cooling the body.The body losses water by excess vomiting.Explain monohybrid and dihybrid cross??
Gregor Mendel was the scientist who is called father of Genetics. He gave the idea of Monohybrid and Dihybrid cross.
[tex]\large{\underline{\underline{\pmb{\frak {\color {red}{Question:}}}}}}[/tex]
[tex] \sf \red{Explain \: monohybrib \: and \: dihybrid \: cross}[/tex]
[tex]\large{\underline{\underline{\pmb{\frak {\color {blue}{Answer:}}}}}}[/tex]
[tex]\sf \green{Monohybrid:}[/tex]
In monohybrid cross, one pair of contrasting characters is inherited from the parents.
[tex]\sf \pink{Dihybrid:}[/tex]
In dihybrid cross, two pairs of contrasting characters is inherited from the parents.
[tex] \boxed{ \frak \red{brainlysamurai}}[/tex]
6. Photosynthesis can combat global warming. Explain with reasons.
Plants take carbon dioxide (CO2) out of the atmosphere to do photosynthesis, and thus help reduce the greenhouse gases warming the planet.
Explanation:
Plants, through photosynthesis, and soils sequester roughly a third of carbon dioxide emissions released into the atmosphere each decade from the burning of fossil fuels. During photosynthesis, plants open tiny pores on their leaf surfaces to suck carbon dioxide from the air and produce their own food.
6. An important role of bicarbonate ions in human blood is to
(A) carry oxygen
(B) act as a buffer
(C) bind with hemoglobin
(D) supply cells with carbon
(E) increase the rate of cellular respiration
Bicarbonate ions present in body performs a variety of functions, in blood it carries carbon dioxide. Its other functions include keeping the balance of acids and bases in the body. It acts as a buffer.
What is a buffer?Buffer is a type of solution that resists pH change either by the addition of acid or base.
Bicarbonate is a base, which the body requires to keep a normal acid-base (pH) balance.
This balance prevents the body from having too much acid means maintaining buffer. The lungs and kidneys helps to keep a normal blood pH by removing excess acid.
Thus, the correct option is B.
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Distinguish which action would result in a reduction of mineral use? Smelting copper
B.
Refining crude oil
C.
Strip mining land
D.
Developing nanotechnology
Developing nanotechnology would result in a reduction of mineral use since only minute amounts of minerals are required.
What are minerals?Minerals refers the elemental form of elements found in the earth's crust either in the free or combined state with other elements.
Mining of minerals refers to the process of extracting minerals from the earth.
Nanotechnology would results in the use of minerals as it requires only very minute amount of these minerals in its processes.
Therefore, developing nanotechnology would result in a reduction of mineral use.
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Which of the following organisms is a third-order consumer in the food web shown above?
Answer:Humans
Explanation:
its just the answer
(2)
why might stem cells from human embryos be more useful than stem cells
from adults?
Answer:
Embryonic stem cells are more useful than the adults stem cells because;
* Embryonic stem cells have the ability to create any cell type in the human body while, the adults stem cells are more specialized( they generally make cells only from their tissue of origin).
They have the capacity to divide into additional stem cells or any kind of body cell.
What is the importance of stem cells of embryo?Embryonic stem cells can develop into any type of human cell, whereas adult stem cells are more specialized and typically can only produce cells from the tissue from which they originated.
Additionally, it is simple to produce embryonic stem cells in a lab setting. There is always the option to manufacture more cells as needed because the cells can be developed through cultures.
Since embryonic stem cells are pluripotent, they are more adaptable in scientific experiments than adult stem cells. Finding novel treatments for ailments, wounds, and organ failure is one of the possible advantages of studying embryos.
Therefore, Embryonic stem cells are more useful than the adults stem cells.
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Where does photosynthesis occur?
A. leaves
B. roots
C. bark
D. seeds
Answer:
a and b
Explanation:
because some plants with out leaf occurs in a root
2. What are three characteristics of carbon that contribute to the diversity of organic compounds?
Catenation:
The property of self linkage among identical atoms to form long chain compounds is known as catenation. Carbon exhibits maximum catenation, when compared to elements like sulphur and silicon, due to strong carbon-carbon bonds and tetra valency. Due to this catenation, carbon atoms can form various types of straight chains, branched chains and ring structures.
Formation of multiple bonds:
Carbon atoms are capable of forming multiple bonds with other carbon atoms.
Hydrocarbons:
All the carbon compounds which contain just carbon and hydrogen are called hydrocarbons.
isomerism arises from the difference in the structure of carbon chain which forms the nucleus of the molecule. It is, therefore, named as chain, nuclear isomerism or Skeletal isomerism. For example, there are known three pentanes which have the same molecular formula.
What is a zygote and how is it formed
Answer:
A zygote is a fertilized ovum. The germ cells undergo meiosis to reach a haploid state (n) as part of spermatogenesis and oogenesis. The sperm and the unfertilized ovum reinstates a chromosome set in zygote in a diploid state (2n).
After fusing with the sperm, the second stage of meiosis takes place for separation of chromatids. Post-fertilization, mitosis of the zygote is initiated which develops into a mature offspring exhibiting characteristics of its parent.
Explanation:
The zygote stage development occurs in the first week of fertilization. The genome of the zygote is the combination of DNA in each gamete and contains all the genetic information required to form an individual.
Answer:
Zygote is a diploid cell resulting from the fusion of two haploid gametes
it forms when a sperm penetrates the outer surface of an egg.
In a process called ____________ , genetic material is exchanged between homologous chromosomes. This occurs during this stage of cell division: ____________ .
In a process called crossing over, genetic material is exchanged between homologous chromosomes. This occurs during the prophase stage of cell division.
What is crossing over?Crossing over is the unique process by which genetic material is exchanged between the non-sister chromatids of homologous chromosomes.
Crossing over occurs in the prophase stage of meiosis and ultimately results in the formation of genetic combinations in offspring that are not present in the parents.
Therefore, the process called crossing over, genetic material is exchanged between homologous chromosomes and it occurs during the prophase stage of cell division.
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organisms swimming _______ are moving with the flow of water.
A) Downstream
B) Meltdown
C) Turbine
D) Ethanol
E) Passive solar cooling
F) Utility
G) First Law of Energy
H) Refinery
I) Isotopes
J) Second Law of Energy
Answer:
A) Downstream
Explanation:
Hope this helps! ;-)
Multicellular fungi have a _
Answer:
Multicellular fungi reproduce by making spores. Mold is a multicellular fungus. It consists of filaments called hyphae that can bunch together into structures called mycelia. Several mycelia grouped together are a mycelium and these structures form the thallus or body of the mold.
Explanation:
hope it's helps^^
Answer:
The vast majority of fungi are multicellular. Most of the body of a fungi is made from a network of long, thin filaments called 'hyphae'. Hyphae filaments are made from tubular cells that connect end on end. Each cell is surrounded by a cell wall composed of a compound called 'chitin'.
Explanation:
Select the correct answer from each drop-down menu.
deductive reasoning is one of the two scientific methods used in archaeology.
deductive reasoning is a
"blank"
approach because it generates a hypothesis by working from
generic
concept to
specific
conclusion.
Deductive reasoning is a sort of logical reasoning that starts with a broad concept and comes to a specific conclusion. It is also known as top-down thinking or moving from the general to the specific. Here the blank will be logical approach.
What is Deductive reasoning?Deductive reasoning is a type of deduction that is used in both science and life in general.
It takes place when two true statements, or premises, are combined to form a conclusion.
A is equal to B, for example. B is also the same as C. Using deductive reasoning, one can conclude A is equal to C given those two statements.
It is a type of logical reasoning that begins with a broad concept and progresses to a specific conclusion.
Thus, deductive reasoning is a logical approach.
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Which organ is the site of gas exchange?
Answer:
lungs
Explanation:
lungs
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs. This happens in the lungs between the alveoli and a network of tiny blood vessels called capillaries, which are located in the walls of the alveoli.
The lungs exchange gases