Explanation:
Molecules of reactants and products undergoes chemical changes when they combine.
The combination leads to the breaking of bonds and rearrangement and this brings about the formation of new products.
Atoms in molecules tends towards stabilityThey often want to mimic the noble gases and would keep rearranging until stability is attained. This leads to the formation of new compounds in the product end of the reaction.HELP PLS I WILL GIVE U BRAINLY
Answer:
molecules
Explanation:
we can eliminate salts right away
cations are positively charged ions
anions are negatively charged ions
molecules is a group of atoms that is bonded together
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This chart shows the temperature in the clouds and the temperature in the air below the clouds for different cities. In which city would sleet likely be observed?
A) Houston
B) Seattle
C) Nashville
D) Detroit
Answer:
B. Seattle
Explanation:
"Sleet" occurs when a warm air intrudes between the clouds and the ground. During precipitation, a "snow is formed." This is because of the freezing cold temperature in the clouds, just like Seattle that has a freezing cold temperature of -5°C. Once it falls down, it reaches a warmer temperature, just like the temperature below the clouds in Seattle that is 3°C. This melts the snow and starts to refreeze again once it reaches the surface of cold air on Earth. This forms the "sleet."
I think it might be B
My explanation is that sleet happens when a kind of warm air gets in between clouds and the ground, while precipitation, a kind of snow is formed and this is because of the cold temperature in clouds when it is cold like maybe -4°C if it falls down the temperature becomes warmer, This soon melts snow and then with cold air you get Sleet!
Hope this helps!
The STARTING molecule for the Krebs cycle is
A.)NADH
B.)pyruvic acid
C.)glucose
Answer:
B
Explanation:
This combines with a 4 carbon compound to start the cycle
Kreb's cycle or Tricarboxylic cycle is an enzyme-catalyzed reaction, in which ATP molecules are generated. The starting material for the cycle is pyruvic acid.
The correct answer is:
Option B. Pyruvic acid
Some of the features of Kreb's cycle are:
The starting material of Kreb's cycle is pyruvic acid. The pyruvate is obtained from the glycolysis of glucose molecules.The pyruvic acid breaks into a two-carbon molecule and joined with the enzyme Co A, to form a two-carbon molecule Acetyl Coenzyme A.The Krebs cycle is a series of dehydration, reduction, oxidation, and hydration reactions.The product of Kreb's cycle is two carbon dioxide molecules, one GTP, and reduced NADH and FADH2.
Thus, the starting material for the Kreb's cycle is pyruvic acid, which is converted into the acetyl Coenzyme A before entering the Kreb's cycle.
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Which of these statements about enzymes is true? Select
all correct answers.
a. Enzymes can help break chemical bonds.
b. Enzymes always change their shape when they bind
to a molecule.
c. Enzymes can break down a variety of different
substances.
d. An enzyme’s shape is related to the shape of the
substrate it binds to.
Answer:
b. Enzymes always change their shape when they bind to a molecule.
d. An enzyme’s shape is related to the shape of the substrate it binds to.
Explanation:
Enzymes are proteins that are secreted by special cells in living organisms. They are the organic catalysts of biochemical reactions.
The role of the enzyme in the enzyme catalyzed reaction is to bring reactants together on its surface so as to have better interactions.
Enzymes have the capability to fit the substrate into an induced fit position.
The process by which enzymes change shape in a reaction is called the induced fit.
This way an enzyme holds the substrate tightly for the reactions to occur.
Why was the path to discovery of the theory evolution easy or difficult? (Explain)
Help!!! look at the picture!
Answer:
The organism's genotype encodes their phenotype because the genotype corresponds to the characteristic that is determined by genes —formed by fragments of DNA— which are transcribed into mRNA to be translated into amino acid sequences in the synthesis of proteins, determining the morphological and functional characteristics of an organism, that is, its phenotype.
Explanation:
Genotype corresponds to the genetic information contained in the DNA, according to the sequence of nucleotides in its molecular structure. This genotype includes characteristics or polymorphisms that define the appearance and function of living beings.
Each DNA molecule constitutes a chromosome, formed by genes —DNA fragments— each of which determines specific characteristics.
When DNA is transcribed into mRNA, information is being sent that is necessary for the incorporation of amino acids into a protein that is being synthesized. The proteins, in turn, determine morphological and functional characteristics that constitute the phenotype of an individual.
function of the egg cell
Answer:
The function of the ovum is to carry the set of chromosomes contributed by the female and create the right environment to enable fertilization by the sperm. Ova also provide nutrients for the growing embryo until it sinks into the uterus and the placenta takes over
Explanation:
Which of the following coordinate and control immune response?
B lymphocytes
T lymphocytes
antigens
antibodies
Answer:
I think it is antigens but i am just guessing.
Explanation:
i don't know for certain that this is the right answer but regardless have a good day
what can you infer about an average star's brightness and temperature?
Answer:
Stars with a high temperature are blue and bright, while stars with a low temperature are red and dim. For example, Spica is a blue star at approximately 25,000 K with a high brightness, and Barnard's star is a red star at approximately 3,000 Suns with with low brightness.
Explanation:
please give me a heart
When science alters or clones genes and inserts them into an existing strand of DNA to make a new trait is know as:
O selective breeding
O genetic engineering
O natural selection
O gene therapy
Which statement below is an example of how a gamete's
structure significantly helps its function?
Eggs have tails to help them travel down the fallopian tubes to the uterus.
Sperm have a well-protected head and a motor to help them travel.
Eggs are small to minimize their chances of double fertilization.
Sperm are large so that they can contain nutrients for the developing embryo.
Answer:
Sperm have a well-protected head and a motor to help them travel.
Explanation:
Gametes are sexual cells. Organisms make use of gametes to sexually reproduce themselves. Male organisms produce gametes called SPERM while feale organisms produce gametes called EGG. Although both of these gametes function to sexually reproduce the organism that produces them, they have different morphological characteristics that supports their physiological function.
- The sperm cell is made up of two major parts namely: the head and the tail. The head of the sperm cell contains the nucleus, which houses the genetic material of the cell i.e. DNA. For this reason, the head is well protected. Also, the sperm contains a tail region, which is actually a flagellum that enables it to be motile i.e swim through the female reproductive part. The flagellum contains a structure called AXONEME, which is referred to as the MOTOR of the sperm cell.
Help me PLEASE! Choose one answer! First one to answer get Brainliest!
18.) Which fossil appears to have lived the longest ago?
A.) Fern
B.) Trilobite
C.) Crinoid
D.) Gastropod
Answer:
trilobite
Explanation:
I searched up all 4 things and it said the trilobite is the oldest being 542 million years old
Answer:
The answer is B because i took this in 5th grade.
Explanation: Thanks happy to help!:)
PLEASE HELP
Match the following dna strand to its complementary strand of rna TAC - CCG - AAT -TCG
What elements are found in distilled water? Check all the may apply
1 point
Hydrogen
Oxygen
Carbon
Nitrogen
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Why can we see some patterns of stars in certain seasons?
The answer is that the night sky changes because of Earth’s orbit around the Sun, and as you’ll see, this also explains the path called the ecliptic on the celestial sphere.
Lelilani lives in Hawaii. Most of the rocks she collects for her science experiment are igneous. Why is this true?
Answer:
Igneous rocks form from the cooling and solidification of magma or lava. In Hawaii, there are volcanoes present, which produce magma and lava. Therefore, it makes sense as to why the rocks she collects are igneous.
Explanation:
Direction : Find a wordless photo that shows this law and explain why your image shows Newton’s first law.
Photo :
Explanation (15 word or less) :
Answer: gravity
Explanation:
Which of the following tissues does not provide support in flowering plants?
A. Collenchyma
B. Parenchyma
C. Xylem
D. Phloem
Answer: B
Explanation: it says which one does not provide, collenchyma does provide support.
The tissue which does not provide support in flowering plants is parenchyma. The correct option is b.
What is parenchyma?Parenchyma is a type of simple permanent tissue that makes up a major part of ground tissues in plants, where other tissues like vascular tissues are embedded. They are non-vascular and composed of simple, living and undifferentiated cells, which are modified to perform various functions.
The main characteristics of parenchyma are, They are living permanent tissues that can divide at maturity and help in the regeneration and healing of wounds, Parenchyma cells are the foundation of a plant as reproductive cells are parenchymatous, Single parenchyma cells of a zygote can develop into an entire plant. These cells are called “totipotent” cells, Parenchyma cells occur in the form of continuous masses as homogeneous parenchyma tissues e.g. in the pith and cortex of stems and roots, mesophyll of leaves, the flesh of succulent fruits and in the endosperm of seeds.
Parenchyma cells may be associated with other types of cells to form heterogeneous complex tissues such as the parenchyma of the xylem and phloem.
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When economic conditions are favorable, more effort can be put into synthetic materials that satisfy desires and not just needs.
O True
O False
Answer:
True
Explanation:
The correct answer would be true.
A favorable economic condition in an area means that a large percentage of the population of the people in the area already have their basic needs met. According to Abraham Maslow, when basic needs are met, human needs graduate from basics to more sophisticated ones. Consequently, production efforts can be put into producing material that satisfies desires and not just needs.
The cell wall _____ the shape of the cell/plant. The cell membrane _____ the entry and exit of _____.
Answer:
The cell wall _oval____ the shape of the cell/plant. The cell membrane ___is__ the entry and exit of __cell___.
Which characteristic listed below is most unique to plants?
Select one:
a.
Plants are heterotrophs.
b.
Plants undergo photosynthesis.
c.
Plants are multi-cellular.
d.
Plants are composed of eukaryotic cells.
Answer:
Plants are composed of eukaryotic cells.
Explanation:
Eukaryotic cells (as opposed to prokaryotic cells) have internal, membrane-bound organelles and a distinct nucleus that physically separates the genetic material of the cell from the all of the other parts of the cell. All protists, fungi, plants, and animals are composed of eukaryotic cells.
The characteristic that is most unique to plants is that they undergo the process of photosynthesis. Thus, the correct option for this question is B.
What is Photosynthesis?Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own food in the form of glucose with the help of carbon dioxide and water in the presence of sunlight.
The complete reaction of photosynthesis is as follows:
[tex]6CO_2+12H_2O[/tex] → [tex]C_6H_1_2O_6+6O_2+6H_2O.[/tex]Plants are eukaryotic in nature and have a double membrane cell organelle that is known as Chloroplast. These cell organelles have a green-colored pigment known as chlorophyll that captures the sunlight and converts it into chemical form and accomplishes the process of photosynthesis.
Therefore, the characteristic that is most unique to plants is that they undergo the process of photosynthesis. Thus, the correct option for this question is B.
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Which variable is being tested in this experiment?
Answer:
The size of the pot as that the only variable that changes
Explanation:
I need help with this question thanks :)
Answer: A : earthquake
A type of plant that has cells inside that form long tubes and carry nutrients and water is called _____________.
Question 4 options:
vascular.
non-vascular.
tubular.
mushroom.
Answer:
Vascular
Explanation:
Vascular Tissues consist of long, narrow cells arranged end-to-end, forming tubes. There are two different types of vascular tissues, called xylem and phloem. Xylem is vascular tissue that transports water and dissolved minerals from roots to stems and leaves.
What is a homologous structure?
A. A structure with similar shape but a different use
B. A structure that is only in index fossils
C. A structure that only exists in the embryo
D. A structure that has no use in the organism
A. A structure with similar shape but a different use
Please help!!!! Part B
Answer:
1. 5
2. 2
3. 4
4. 1
5. 3
Explanation:
Hope this helps! :)
What is the relationship between a double helix and a chromosome?
Answer:
a chromosome contains many genes. A gene is a segment of DNA that provides the code to construct a protein. The DNA molecule is a long, coiled double helix that resembles a spiral staircase.
Explanation:
Human cells have 23 pairs of chromosomes containing DNA. The chromosomes serve as the structure that holds the DNA. The DNA acts as a complete set of instructions that tells our bodies how to develop.
What is another term for the output of a reaction
Answer:
7367325623t8y656785486325ru
Explanation:
What are the 3 ways in which static electricity can be transferred? Explain each.
Answer:
1.to build up static electric
2.charging by friction.
3. by conduction and by Induction
Professor Marcus has identified a new species of beetle in the Amazon Rainforest. The professor
then investigates the process of gene expression in the cells of the beetle. Which is an expected
result of the investigation?
Answer:
Which is an expected result of the investigation?
The process of translation in the beetle is similar to other organisms, but involves a unique genetic code.
Explanation:
The process of translation in the beetle is similar to other organisms, but involves a unique genetic code.
