Answer:
Step 1: Pollination
In general, male gametes are contained in pollen, which is carried by wind, water, or wildlife (both insects and animals) to reach female gametes. The pollen is deposited on a plant's stigma, which is part of the pistil (the elongated part of a flower extending from the ovary). This process is called pollination.
Step 2: Germination
Within a few minutes, pollen tubes begin growing, or germinating, toward the egg cell. These tubes will provide a path for the sperm carried in the pollen to reach the egg.
Step 3: Penetration of the Ovule
The pollen tubes penetrate the ovule, which contains the female gametes.
Step 4: Fertilization
Sperm travel down the pollen tubes and fertilize an egg. Most angiosperms undergo double fertilization, where both an egg and the polar nuclei in the embryonic sac are fertilized.
Explanation:
^^^^^^^^
Help please!! I will give brainliest!!
Cellular (aerobic) respiration takes place in the presence of and with the use of a certain element.
Which element is it?
Answer:
air
Explanation:
Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP; waste products include carbon dioxide and water.
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Which statements describe hormones in plants? Check all that apply.
Cutting stems can stimulate hormones to start lateral leaf growth.
Some tropisms are controlled by hormones.
Cells grow faster in areas where auxin is concentrated.
Hormones help buds form and grow in the winter.
Auxin is the only hormone involved in plant development.
Answer:Cutting stems can stimulate hormones to start lateral leaf growth.
Some tropisms are controlled by hormones.
Cells grow faster in areas where auxin is concentrated.
Hormones help buds form and grow in the winter.
Auxin is the only hormone involv
Explanation: took test on missed this question, had A,B,C,D.. answer all of the above. So its all of them.
2. Are the volume values similar to each other or are they quite different? Explain why you see what you see. If they are similar explain why. If they are different also explain why.
Answer: The density, ρ, of an object is defined as the ratio of its mass to its volume. ... Mass and volume are extensive (or extrinsic) properties of matter - they ... In this experiment, you will measure masses and volumes to determine density.
Explanation:
in the water cycle, when water vapors turn into a liquid filling the clouds it is called,
Condensation
precipation
evaporation
transpiration
Answer:
precipitation
Explanation:
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What do prokaryotic and eukaryotic cells have in common?
mitochondria
nucleus
cytoplasm
lysosomes
Sleep could be best described as a
A. car with the engine started, but parked and idling
B. truck driving on the freeway in the right lane
C. train with cargo being loaded at the start of a trip
D. bicycle riding uphill in the wind
Answer:
The correct answer is A. car with the engine started, but parked and idling
Explanation:
This is the correct answer on edg. 2020
Answer:
The correct answer is A
Explanation:
edge 2021
Why is it difficult for your body to return blood from your feet when you sit for too long?. Single choice. a. Blood has to travel a greater distance. B. Skeletal muscles are not squeezing the veins. c. Gravity makes the blood flow backward. d. The heart does not beat fast enough at rest.
Answer: Option C.
Gravity makes the blood flow backward
Explanation:
it difficult for your body to return blood from your feet when you sit for too long because gravity makes blood flow backward and this is because when you sit for long , it weakens the keg muscles because it is necessary for body movement so that blood will circulate or flow well. When the keg muscles becomes weak, it will slow blood flow in the leg and the force of gravity acting will make the blood flow backward and thus can cause a blood clot.
11
Multi-Select
Vio
A)
In meiosis
, the cell undergoes two divisions.
υφαν
Mitosis results in two identical daughter cells.
Meiosis results in four identical daughter cells.
Mitosis and meiosis both start with one parent cell
E
Cons de the models of cell reproduction Evaluate the statements and select All that are NOT supported by the models
Meiosis and mitosis both result in cells with half the genetic information of
the parent cell
Answer:
mitosis and meiosis both start with one parent cell
There are two types of fermentation. One is alcoholic fermentation and the other is _______________________________.Immersive Reader
A Lactic acid fermentation
B Micro-fermentation
C Macro-fermentation
D Oxygen fermentaion
Answer:
I think the answer is A. but i'm not sure
Which of the following is true about nucleic acids?
Both DNA, which stores genetic information and encodes protein sequences, and RNA, which is involved in the direct production of proteins, are nucleic acids.
Nucleic acids always consist of a five-carbon sugar, a nitrogenous base, and one or more phosphate groups.
Nucleic acids are usually insoluble in water and are used for long term energy storage.
Glucose, cellulose, and starch are examples of nucleic acids found in most cells.
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Answer:
Both DNA, which stores genetic information and encodes protein sequences, and RNA, which is involved in the direct production of proteins, are nucleic acids. Nucleic acids always consist of a five-carbon sugar, a nitrogenous base, and one or more phosphate groups.Explanation:
DNA and RNA are both made up of chains of nucleotides. They are responsible for holding, transmitting, and translating genetic information into proteins.
Nucleotides are made up of a 5 carbon sugar, (DNA is deoxyribose, RNA is ribose), a phosphate group, and a nitrogenous base. They are linked together by phosphodiester bonds. The sequence of nucleotides makes the DNA and RNA sequences unique and determines the structure and function of the encoded proteins
Answer:
Both DNA, which stores genetic information and encodes protein sequences, and RNA, which is involved in the direct production of proteins, are nucleic acids.
Nucleic acids always consist of a five-carbon sugar, a nitrogenous base, and one or more phosphate groups.
Explanation:
I did the study island and got it right : )
9. Transcribe this DNA sequence? AAT-CAG-CGT
11
Multi-Select
Vio
A)
In meiosis
, the cell undergoes two divisions.
υφαν
Mitosis results in two identical daughter cells.
Meiosis results in four identical daughter cells.
Mitosis and meiosis both start with one parent cell
E
Cons de the models of cell reproduction Evaluate the statements and select All that are NOT supported by the models
Meiosis and mitosis both result in cells with half the genetic information of
the parent cell
Answer:
mitosis and meiosis both start with one parent cell
Answer: c and e
Explanation:
I just took it
Which is the MOST accurate description about how the different types of feed mechanisms work.
A. Both positive and negative feedback loops amplify a departure from the set point.
B. Both to negative and positive feedback loop returns to the set point in the reverse direction
C. Positive feedback loops return to the set point in reverse direction, why negative feedback loops amplify the departure from this point.
D. Negative feedback loops return to the set point in reverse,wow positive feedback loops amplify a departure from the set point
Answer:
D
Explanation:
Positive feedback loops are rarer than negative ones because of homeostasis, but they do occur. Negative feedback loops return to the set point in reverse, and positive feedback loops amplify a departure from the set point.
Michael took a swab of bacteria from a Petri dish and placed it on a glass slide. Then he treated the sample with a series of dyes.
For which type of microscope is the sample prepared?
A.
scanning electron microscope
B.
compound microscope
C.
dissecting microscope
D.
transmission electron microscope
Answer:
B
Explanation:
Answer:
compound microsope
Explanation:
did the studyisland:)
Which statement best describes the end result of this process? a New molecules of mRNA are transcribed from the DNA molecule. b The new DNA molecules are made from opposite DNA strands so they are not identical. c A protein molecule is synthesized from the code in the DNA molecule. d Two new DNA molecules are formed, each identical to the original
Answer: c. A protein molecule is synthesized from the code in the DNA molecule.
Explanation: This shows the steps surrounding the central dogma of molecular biology stating that the genetic material, DNA contains the needed information and instructions for creating a protein, which are copied by RNAs. As such it follows that DNA is transcribed into RNAs which are in turn translated into proteins.
Which type of energy does cellular respiration release?
chemical energy
thermal energy
kinetic energy
potential energy
Answer:chemical energy is correct.
Explanation:
The group of protons and neutrons are known as what ? A. Nucleons B. Positrons C. Megatrons D. Neutrons
Answer:
Nucleons
Explanation:
Nucleons can be either protons or neutrons so instead of saying a group of protons an neutrons you can just say nucleons
Answer:
nucleus
Explanation:
Which process is represented below?
the Calvin cycle
anaerobic cellular respiration
aerobic cellular respiration
photosynthesis
Answer:
aerobic respiration!
Explanation:
Most of the air pollution in the news is the result of
Answer:
burning of fossil fuels
Explanation:
Air pollution is human-provoked, because of the factories, powerplants, cars, planes, and most important, because of the burning of fossil fuels, such as coal, gas, oil, gasoline.
The indicator that shows how much fossil fuel is burned every day is carbon-dioxide, as it indicates how many dangerous gases are let in the air.
20. Which stage of cellular respiration produces the most ATP?
a. Glycolysis
b. Krebs cycle
C. Electron transport chain
d. Acetyl-CoA charging
Answer:
The correct answer is c
answer correctly for brainliest
......................................
Answer:
1. classification
2. deductive
3.reasoning
4. science
5. energy
Explanation:
SOME ONE HELP ME!! FOR A MAJOR GRADE!!!
The allele for long whiskers in seals is dominant over the allele for short whiskers.
Part A.
What percentage of offspring could be expected to have short whiskers from a cross of parents with Ww and WW genotypes?
A.0%
B.50%
C.75%
D.100%
Part B.
What percentage of offspring could be expected to have a genotype of Ww between a cross of parents with the genotype Ww and Ww?
A.25%
B.50%
C.75%
D.100%
Answer:
Part A. - D.) 100%
Part B - B.) 50%
Answer:
part a- 0%
part B- 50%
Explanation:
im not sure on part b but that sounds right
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Select the correct answer from each drop-down menu.
Marine ecosystems support a(high, low) diversity of life,
largely due to (constant unchanging conditions, a lack of natural predators, the variety of environments) throughout the ocean.
Answer:
high diversity, variety of environments
Explanation:
To this day, scientists are still discovering new marine animals. This is because of all of the different environments in the ocean, Some animals exist in tropical areas, others in freezing cold water. Some animals even exist solely in high pressure areas that are hundreds of meters below the surface. There are even organisms older than dinosaurs living in the ocean.
A high abundance of nutrients can cause which of the following? A.) heavy rainfall B.) an increase of crop production C.) aggressive competition between producers
Answer:
B) an increase of crop production
Which flow chart correctly organizes the structures of heredity, from least to most complex? codon ® gene ® DNA ® chromosome gene ® chromosome ® codon ® DNA DNA ® codon ® chromosome ® gene chromosome ® DNA ® gene ® codon
Answer:
codon ® gene ® DNA ® chromosome
Explanation:
The flow chart correctly organizes the structures of heredity, from least to the most complex - codon ® gene ® DNA ® chromosome
Chromosomesare thread-like structures located in the nucleus, which carries genetic information from generation to generation.an organized package of DNA, Different organisms have different numbers of chromosomes.DNADNA, or deoxyribonucleic acid, is the hereditary material in almost all organisms.Nearly every cell in a person's body has the same DNA.It has a huge number of nitrogen base sequences and specific segments called geneGeneA gene is the basic physical and functional unit of heredity.Genes are made up of DNA.genes vary in size from a few hundred DNA bases to more than 2 million bases that form codonsThus, The flow chart correctly organizes the structures of heredity, from least to the most complex - codon ® gene ® DNA ® chromosome
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The excretion of living organisms are best categorized as which type of factor in an environment
A biotic
B abiotic
C living
D nonliving
Answer:
biotic
Explanation:
Help please? *25 points*
Answer:
Yes, if igneous rock us moved to earth's surface and exposed to energy from the earth's sun, it could weather into smaller pieces that could form sedimentary rock.
Explanation:
I found that answer on Google, so I'm honestly not sure if it'd be A or B. Sorry! hope this helps a bit.
Which of the following is NOT a function of proteins? O Act as enzymes O Primary source of energy O Act as antibodies O Form body structures
Answer:
The third, they don't act as Anti-Bodies
Explanation:
Because they DO act as enzymes, they’re one of the 4 primary sources of energy, and they help to for body structures such as muscles.
They DO NOT, I repeat DO NOT, act as antibodies
Which one of the following is NOT a REACTANT (or ingredient) needed for photosynthesis?
A) Solar Energy
B) Carbon Dioxide
C) Glucose
D) Water
Answer:
The awnser is Glucose
Explanation:
It is made during photosynthesis but does not need to taken in through the process
What is the function of mRNA in the diagram above?
The function of mRNA in the diagram given above is carrying the genetic message from DNA to the ribosomes.
What is the function of mRNA?
The main function of mRNA has to work as the immedieter between the protein and DNA which has been utilised by the ribosome for the process of the direct synthesis of protein, and the function of tRNA has to carry the accurate amino acid to the proteins synthesis site which takes place in ribosome.
RNA has backbone and it has to made up of phosphate group which has been arranged in alternating form and the sugar known as ribose other than the deoxyribose present in DNA. There are four bases found in RNA and these are adenine, uracil, guanine, and cytosine.
Liquid consist of small range of order and the reason behind this is intermolecular attractive force which is very strong and due to this reason molecules are packed together tightly.
Therefore, The function of mRNA in the diagram given above is carrying the genetic message from DNA to the ribosomes.
Learn more about mRNA on:
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