Answer:
Examples of pure substances include tin, sulfur, diamond, water, pure sugar, table salt and baking soda. Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements. All elements are pure substances.
Explanation:
May I have brainliest please? :)
Answer:
Nitrogen
Explanation:
If it's for edg I got it right :)
Geneticists can transfer a gene from a DNA of one organism into another through a process called ...............................................
A) Natural selection.
B) Genetic engineering.
C) Artificial breeding.
Answer:
The answer is B.
Explanation:
Genetic engineering involve the change of genetic material of an organism by removing, changing or inserting individual genes.
How are the algae a important part of the food chain?
Answer:
They play a vital role in aquatic ecosystems by forming the energy base of the food web for all aquatic organisms. As autotrophic organisms, algae convert water and carbon dioxide to sugar through the process of photosynthesis.
hope this helped
Most fish can see very well and some fish even have a special eye structure called the Tapetum lucidum that allows them to see very small amounts of light. How does this structure work?(look under sharks for answer)
Answer & Explanation:
Vision is simply the sense or ability of sight; the ability to see or the perception of light. Tapetum lucidum present in most fishes especially the nocturnal ones and sharks, is located behind the retina. It is a special eye structure whose function of which is to return rays of light that have escaped from the retina back to the retina to improve vision. This has enabled them to survive in an environment where light readily disappears due to depth.
Explain how mutations cause variation.
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Explain how water behaves in this reaction. Which definition of acids and bases would you apply? Upper subscript 2 upper C upper O subscript 3 plus upper H subscript 2 upper O right arrow upper H upper C upper O subscript 3 superscript minus plus upper H subscript 3 upper O superscript plus.
Answer:
Brownstead- Lowry base
Explanation:
A Brownstead- Lowry base accepts protons. If we look at this reaction, the water molecule accepted a proton to form its conjugate acid H3O^+.
Hence, in this particular instance, water behaved as a Brownstead- Lowry base in accordance with the definition of a Brownstead- Lowry bases.
Answer:
the correct answer is:
Explanation:
Water behaves as a base in this reaction.
The Bronsted-Lowry definition is applied because the reaction involves the transfer of H+ from one reactant to the other.
A Bronsted-Lowry base is defined as a substance that accepts a proton.
Because water gains a proton to form H3O+ in this particular reaction, it acts as a base.
i got it right on edgn... i hope this helps, blessing, xo, nm :) <3
A mutation in body cells do not affect future generations, but mutations in gamete (sex cells) will affect future generations.
A.True
B.False
Answer: A. True
Explanation:
Answer:
True
Explanation:
Only hereditary mutations, which occur in egg or sperm cells, can be passed to future generations and potentially contribute to evolution. Some mutations occur during a person's lifetime in only some of the body's cells and are not hereditary, so natural selection cannot play a role.
Representative organism
Sponges
Cnidarians
Roundworms
Annelids
Mollusks
Arthropods
Echinoderms
Vertebrates
Answer:
Cnidarian
Explanation:
Answer:Cnidarians
Explanation:
Why is it important we have all variables controlled?
during the process of cell division, both plants and animal cells..?
Answer:
Multiply dna
Explanation:
So they can be genetically identical
What is one difference between a meteoroid and an asteroid?
Meteoroids revolve around the Sun just like planets and asteroids do not.
Meteoroids are smaller than asteroids.
Asteroids are smaller than meteoroids.
Asteroids revolve around the Sun just like planets and meteoroids do not. (its science)
Answer:
Meteoroids are smaller than asteroids.
Explanation:
Options are:
1. 4
2. 8
3. 2
4. 1
A student claims that the Y chromosome contains the sex-determining region gene, known as the SRY gene, which causes male fetuses to develop testes.
Which of the following provides correct information about cell signaling that supports the claim?
A student claims that the Y chromosome contains the sex-determining region gene, known as the SRY gene, which causes male fetuses to develop testes.
The SRY gene produces a protein that binds to specific regions of DNA in certain tissues, which affects the development of these tissues.
The SRY gene produces a protein that binds to specific regions of DNA in certain tissues, which affects the development of these tissues.
A
The SRY gene produces a protein that deletes portions of the X chromosome in males so that male characteristics can develop.
The SRY gene produces a protein that deletes portions of the X chromosome in males so that male characteristics can develop.
B
The SRY gene produces an RNA segment that is exported from specific cells and targets the developing gonads.
The SRY gene produces an RNA segment that is exported from specific cells and targets the developing gonads.
C
The SRY gene is found only in tissues of the developing gonads.
Answer:
The SRY gene produces a protein that binds to specific regions of DNA in certain tissues, which affects the development of these tissues.
Explanation:
In humans, there are two sex chromosomes namely: X and Y chromosomes. The Y chromosome contains a gene called sex-determining region gene or SRY gene. The SRY gene undergoes genetic expression to produce SRY proteins, which is responsible for the development of male sexual characteristics (testes) in humans.
The SRY protein achieves this by binding to a specific region on the DNA of reproductive tissues and regulates the expression of certain genes i.e. the SRY protein acts as a transcription factor. These regulation causes male fetuses to develop testes and inhibits the development of female sexual characteristics like uterus etc.
The answer option which provides the correct information about cell signaling that supports the claim is: A. The SRY gene produces a protein that binds to specific regions of DNA in certain tissues, which affects the development of these tissues.
A cell is the fundamental (basic) structural, functional and smallest unit of life, that is found in any living organism.
Cell signaling can be defined as a fundamental process through which specific information (signals) are transmitted from the surface of a cell to the cytosol and finally to the nucleus, thereby, causing a change in the gene expression of a living organism.
Basically, cell signaling is an ability of a living cell to do the following from and within its environment:
Process specific information (signal).Transmit specific information (signal).Receive specific information (signal).In Science, the four (4) main stages of cell signaling include:
1. Signal transmission.
2. Cell reception.
3. Signal transduction.
4. Cellular response.
In this context, cell signaling is described by the SRY gene (sex-determining region gene) produces a protein that binds to specific regions of deoxyribonucleic acid (DNA) in certain tissues, which affects the development of these tissues.
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Describe(detail) 1 animal behavior in Chordata?PLSSS HELPPP!!!!
Who produces the most biomas energy in the United States?
Answer:
Forbes magazine has named North Dakota, Iowa, Mississippi, Georgia and North Carolina as the top five U.S. states for producing biomass feed stocks. According to the Forbes article, biomass feed stocks include agricultural and forest residues, including yard and wood waste.
Explanation:
why is active transport needed to take mineral ions into the cytoplasm of the root hair cell?
Answer: In plants, they need to move mineral ions from the soil into the roots. Mineral ions are more concentrated in the cytoplasm of plant cells than in soil water or dillute.
Explanation:
Minerals cannot be soaked up through osmosis since it only involves the movement of water. Because the minerals are in such low concentration, they cannot be absorbed through diffusion. Active transportation is used instead.
What is active transport?Active transport refers to the transport of molecules or ions into or out of a cell via the cell membrane, from a low concentration region to a high concentration region.
The particles use the energy released during respiration to move against the concentration gradient.
Active transport is defined as the movement of molecules against a gradient from a region of lower concentration to a region of higher concentration.
Active transport in plant root hairs allows plants to absorb mineral ions, which are required for healthy growth, even though the concentration of minerals in the soil is usually lower than in the root hair.
Thus, active transport is needed to take mineral ions into the cytoplasm of the root hair cell, as there is a need to move the minerals from the region of lower to higher concentration.
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homeostasis refers to the ability of the body to maintain a stable internal environment despite changes in external conditions true or false ?
The answer is TRUE
.......................
Answer:
It's true
Explanation:
How have you heard the word metabolism used in daily conversation? How does this usage differ from the actual definition of metabolism?
Answer:
Metabolism - the chemical process within a living organism in order to maintain life
Explanation:
The common use it 'my metabolism is really slow/fast', usually heard in fitness and diet communities. The biggest difference is that, while metabolism does deal with the burning of energy from food, it really covers the processes using all materials such as water, food, nutrients, and oxygen in the cells to produce the body's energy.
Answer: Metabolism is often used in ads for exercise products or diet pills, which claim that they will boost metabolism to help people lose weight. In this context, metabolism is used only to describe weight loss or gain. This interpretation differs greatly from the actual definition of metabolism, which describes all the chemical reactions that occur within a cell.
What's the culture of Thyme?
Answer: Hi There- Thyme is a small garden herb that's been used even since Ancient Egypt. Its essential oil- thymol is used as a disinfectant and an antiseptic and Thyme goes well in Italian dishes or in dishes with sage and rosemary. There are about 300 different varieties of thyme, the most popular one being Thymus vulgaris.
Explanation: Hope you have a bright and beautiful day!!!
Which of the following is a unit of volume?
O A. A kilometer
O B. A liter
O C. A gram
D. A meter
Answer: B/Liter
Explanation:
1. How do the gases necessary for photosynthesis and cellular respiration get into the leaf?
2. What is transpiration?
Dirusare Vecumposers.
d. Algae are producers.
Coastal Bay Food Chain
Ecosystem Summative
Do not write on this test!
26. Based on the food chain to the right, which organism's
population would be the first to decline due to overharvesting (taking
too many) shrimp?
barracuda
b damselfish
algae
d. zooplankton
Algae
Barracuda
Damselfish
Grzybory
que
Goch
Zooplankton
Shrimp
Chris
Answer: I dont know the answer I just Want POints
Explanation: I still Dont Know
what materials make up the cell membrane
Answer:
Lipids, Proteins, and carbohydrates
Explanation:
I did this once and I got it right, I hope you get it right too
Answer:
the material that makes up the membrane cell is the phospholipids, cholesterol, proteins, and carbohydrates.
Explanation:
CAN I HAVE Brainiest p.s. please
how many chromosomes are represented in each cell?
Answer:
46
Explanation:
Which flowchart correctly lists the structures in order from smallest to largest?
Answer:
gene Right-arrow DNA Right-arrow chromosome Right-arrow nucleus
Which of the following does not belong?
O
A. Enzyme
O
B. Amino acids
O
C. Protein
O
D. Lipid
Answer:
c is your answer
Explanation:
Which level of organization is pictured?
cell
tissue
organ
organ system
Plz help ASAP on a timer
Answer: It is a cell
Explanation: Most cells have a honey cone shape.
The image represents the level of organization known as tissue. In the image, the cells are organized into a specific pattern and shape to form a tissue. It is important to note that different tissues can be organized into organs, and organs can be organized into organ systems, which make up the various body systems.
What is a Tissue?A tissue is a group of similar cells that work together to perform a particular function. Tissues can be found in many places in the body and they are specialized to carry out specific functions. For example, muscle tissue is composed of cells that contract and allow movement, while nerve tissue is made up of cells that transmit electrical signals.
The different levels of organization in the body are all interconnected and work together to maintain homeostasis and keep the body functioning properly.
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4. Deascribe the process of wound healing
Answer:
When the skin is injured, our body sets into motion an automatic series of events, often referred to as the “cascade of healing,” in order to repair the injured tissues. The cascade of healing is divided into these four overlapping phases: Hemostasis, Inflammatory, Proliferative, and Maturation.
Explanation:
brainliest please :)
One major threat to humans is the untreated sewage emptied into lakes and rivers. This type of waste
attracts infectious organisms that cause diseases such as cholera, typhoid, and dysentery.
Which one of the following statements is true about these disease-causing wastes?
A) They are a minor issue in lesser-developed countries but cause frequent problems in the United States.
B) They are a major issue in both lesser-developed countries and in the United States.
C) They are a minor problem in both lesser-developed countries and in the United States.
D) They are a major issue in lesser-developed countries but cause only infrequent problems in the United
States.
Answer:
They are a major issue in lesser-developed countries but cause only infrequent problems in the United States.
it can be a problem for anyone really but especially with undeveloped countries because most are not clean and they don't have much access to medicine.
What two functinol groups do amnio acids share
Answer: Amino acids are organic compounds (molecules) that contain amine (–NH2) and carboxyl (–COOH) functional groups, along with a side chain (R group) specific to each amino acid.
Explanation: The variation seen in naturally occurring amino acids arises from differences in this side chain.
Which of the following is true about El Niño weather events?
A There have always been El Niño events, but scientists still do
not know what causes them.
B The hottest ocean surface temperatures are in the western
Pacific, and El Niño has greater impact there than anywhere else.
C El Niño causes different storm patterns across the world, and
it can result in famine, disease, and harmful changes in the
ocean.
D The large storms associated with El Niño occur every year in
the same months
Answer:
El Nino is a weather pattern which usually peaks during the winter months of the northern hemisphere. This weather pattern involves interaction between the ocean and the atmosphere, resulting in warmer waters in major areas of the Pacific Ocean. When that happens, global weather patterns will be affected so C.
Explanation: