Answer:
Üçlü füzyonda, üçüncü bir sperm çekirdeği, embriyo kesesindeki merkezi hücre ile birleşerek endospermi üretir. Eşleşme ve üçlü füzyon arasındaki temel fark, eşleşmenin bir tür üretici döllenme olduğu, üçlü birleşme ise bir tür bitkisel döllenmedir .İyi Çalışmalar..
Answer:
Syngamy: Syngamy refers to the fusion of gametes in fertilization.
Triple Fusion: Triple fusion refers to the fusion of a sperm cell with the two polar nuclei during the double fertilization in angiosperms.
Type of Fusion
Syngamy: In syngamy, a male gamete fuses with a female gamete.
Triple Fusion: In triple fusion, a male gamete fuses with the central cell.
Result
Syngamy: Syngamy produces the zygote that develops into the embryo.
Triple fusion: Triple fusion produces the endosperm cell that develops into the endosperm.
Ploidy
PloidySyngamy: The result of the syngamy is diploid.
Triple Fusion: The result of the triple fusion is triploid.
Type of Gametes
Type of GametesSyngamy: Both male and female gametes are involved in the syngamy.
Triple Fusion: Only male gametes are involved in the triple fusion.
Type of Fertilization
Syngamy: Syngamy is a generative fertilization.
Triple Fusion: Triple fusion is a vegetative fertilization.
Occurrence
OccurrenceSyngamy: Syngamy occurs in animals and plants.
Triple Fusion: Triple fusion occurs in angiosperms.
Conclusion
Syngamy and triple fusion are two types of events in the sexual reproduction of plants. Syngamy is the fusion of male and female gamete, producing the zygote. Triple fusion is the fusion of a male gamete with the central cell of the female gametophyte, producing the endosperm. The main difference between syngamy and triple fusion is the type of fusion of cells in each event.
I hope it's helpful!
Two plants were being tested for growth. Both were given water and proper soil, etc. However, one was placed in the closet, and one was placed in the window sill. Why did the one in the closet die?
Question 4 options:
It did not have chloroplasts.
It was not around other plants.
It did not receive sunlight.
It was not around people enough.
Answer:
It did not receive sunlight.
Explanation:
Plants need sunlight to survive along with water and nutrients from the soil.
HELPPP!!! I'm confused!!
option c
Glycolysis , Krebs cycle , electron transport chain
Which gas is released during the light reactions of photosynthesis?
A. Carbon dioxide gas
B. Oxygen gas
C. Nitrogen gas
D. Methane gas
A species of bacteria is found deep within the Earth’s crust. Which process will the bacteria use to obtain energy?
A. Cellular Respiration
B. Photosynthesis
C. Lactic Acid Fermentation
D. Alcoholic Fermentation
Which of the following is not a reactant needed for photosynthesis?
A. Sunlight
B. Oxygen
C. Carbon Dioxide
D. Water
Answer:
B for your first question.
A for your second question.
B for your third question.
Explanation:
I hope this helps!
2. What can you infer from the fact that ants make up
20 percent of the mass of all land animals combined?
a. Ants are very heavy
b. Ants live for a long time
c. Ants thrive in locations all over the world
d. Ants breed faster than any other organism on earth
Ant breed faster than any other organism on earth, 20% of earth mass have land animals. Many ants are on the earth. Thus, option D is correct.
What are the major features of ants ?Ants belongs to Formicide family which is related to so called eusocial insects like bees and termites. It is appeared in the Cretaceous period that is more than 90 million years ago.
The diversity of ants is every where except Antarctica.
The body has three parts such as a head, a meso-some and metasoma or gaster.
Ants are mostly omnivorous but can be scavengers , predators or herbivores based on ecological context.
The reproduction in which young, queens fly during mating time, fertilize with male, this flight is called as nuptial flight.
Then queen lay eggs, then larvae emerge to become pupae, then adults such as workers, soldiers, males or other queens are produced.
Thus, option D is correct.
Learn more about ants, here:
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A receptor is a set of modified dendrites of the:
a. nerve.
b. interneuron.
c. motor neuron.
d. sensory neuron.
Which food chain represent one way that energy my flow through this ecosystem?
Answer:
its a metal chain not a food chain, (steel to be more specific)
Explanation:
Answer:
A
Explanation:
Which of the following IS
an example of reproductive isolation?
O two populations
of finches that cannot produce viable offspring
O two populations of finches that have different feather colors
• two populations of salamanders that live in different lakes
O two populations of salamanders that
have different tail lengths
An example of reproductive isolation is two populations of salamanders that live in different lakes. Thus, the correct option is C.
What is Reproductive isolation?Reproductive isolation may be defined as the inability of a species to interbreed successfully with related species members due to isolating mechanisms.
Reproductive isolation may leads to speciation. A single specie scan generates multiple species via reproductive isolation. The members of the same species undergo reproductive isolation due to several isolating mechanisms.
The isolating mechanisms include geographical, behavioral, physiological, or genetic barriers.
Therefore, the correct option for this question is C.
To learn more about Reproductive isolation, refer to the link:
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pls help and only answer if you can please
Answer:
A
Explanation:
I got this by process of elimination because I know all those other answers are wrong
Grace and Carlos are going for a walk the temperature is -15°C with wins at 10 to 12 mph what should I wear
4. What is an example of positive feedback?
a. Regulating blood glucose levels
b. Maintaining internal body temperature
c. Producing milk in nursing mothers
Answer:
C
Explanation:
It is known as lactation. The suckling action of an infant produces prolactin, which leads to milk production; more suckling leads to more prolactin, which in turn leads to more lactation. This is a positive feedback system as the product (milk) produces more suckling and more hormone. When the child is no longer breast feeding, the prolactin drops off and milk production goes down.
Deco cubes with 3 types of solutions science
Answer:
Below
Explanation:
Deco cubes with 3 types of solutions sciences
Answer:
owwwwweeeaaaa my god!
Explanation:
I hit a substance with a hammer and it shatters.It is a
Answer:
non metal ,so it is brittle in nature
Which describes how to calculate density?
mass divided by volume
volume divided by mass
mass added tog volume
volume subtracted from mass
ОО
where is the gene found?
what's the function of the gene?
what's the structure of the gene?
Answer:
gene found in the Dna its in the nucleus
I WILL GIVE BRAINLIEST PLEASE HELP, DUE IN 30 MINUTES
Fill in the blanks:
Law of Segregation: Mendelian principle explaining that because each plant has ___ different alleles it can produce __ different types of __. During fertilization, male and female gametes randomly __ to produce four combinations of alleles.
Word Bank: (picture below)
Answer:
I think it goes like this:
Explanation:
Law of Segregation: Mendelian principle explaining that because each plant has 2 different alleles it can produce 2 different types of genes. During fertilization, male and female gametes randomly pair up to produce four combinations of alleles.
Which option states an advantage of sexual reproduction?
Answer:
The advantages of sexual reproduction: produces genetic variation in the offspring. the species can adapt to new environments due to variation, which gives them a survival advantage. a disease is less likely to affect all the individuals in a population.
I hope it's helpful!
Explain the change of color that often occurs in leaves in the autumn in simple terms.
Answer:
In autumn when it starts to get cold, some plants stop making chlorophyll. Instead, those plants break down chlorophyll into smaller molecules. As chlorophyll goes away, other pigments start to show their colors. This is why leaves turn yellow or red in fall.
Explanation:
PLEASE ANSWER ALL QUESTIONS! THANKS!
Which of the following statements about salinity is true?
Question 1 options:
Ocean water near areas with low evaporation has higher salinity.
Ocean water in regions with high levels of precipitation has higher salinity.
Ocean water near rivers has a lower salinity.
Ocean water in areas with high humidity has a higher salinity
How are latitude and temperature related?
Question 2 options:
Lower latitudes will have warmer water because it is closer to the equator.
Higher latitudes will have warmer water because it is closer to the equator.
Higher latitudes will have warmer water because it is closer to the poles.
Lower latitudes will have warmer water because it is closer to the poles
How does salinity vary with freezing and melting?
Question 3 options:
Both freezing and melting decrease salinity.
Both freezing and melting increase salinity.
Freezing decreases salinity, while melting increases salinity.
Freezing increases salinity, while melting decreases salinity.
How does salinity vary with evaporation?
Question 4 options:
When water evaporates, it takes salt with it, increasing its salinity.
When water evaporates, it leaves salt behind, increasing its salinity.
When water evaporates, it leaves salt behind, decreasing its salinity.
When water evaporates, it takes salt with it, decreasing its salinity.
Answer:
that guys answers are all wrong except for #3
Explanation:
i took the quiz and got 1/4
The vocal cords stretch across the opening of the larynx. True or false??
Answer:
True
Explanation:
Vocal cords are bands of smooth muscle tissue located in the larynx. When air passes through, the vocal cords vibrate.
Where can the process of lactic-acid fermentation be found
Answer:
Lactic fermentation is a minor process which occurs after glycolysis in anaerobic respiration.
Explanation:
In it, an enzyme found in most every organism called lactate dehydrogenase catalyzes a reaction between the NADH produced from glycolysis with the pyruvate molecules to create the NAD+ necessary to begin glycolysis
The effect of disorder of checkpoints proteins and cell cycle regulation
I need help!!!!!!???
Answer:
LEARNING OBJECTIVES
Identify important checkpoints in cell division
Explain how errors in cell division are related to cancer
The length of the cell cycle is highly variable, even within the cells of a single organism. In humans, the frequency of cell turnover ranges from a few hours in early embryonic development, to an average of two to five days for epithelial cells, and to an entire human lifetime spent in G0 by specialized cells, such as cortical neurons or cardiac muscle cells. There is also variation in the time that a cell spends in each phase of the cell cycle. When fast-dividing mammalian cells are grown in culture (outside the body under optimal growing conditions), the length of the cycle is about 24 hours. In rapidly dividing human cells with a 24-hour cell cycle, the G1 phase lasts approximately nine hours, the S phase lasts 10 hours, the G2 phase lasts about four and one-half hours, and the M phase lasts approximately one-half hour. In early embryos of fruit flies, the cell cycle is completed in about eight minutes. The timing of events in the cell cycle is controlled by mechanisms that are both internal and external to the cell.
Explanation:
Regulation of the Cell Cycle by External Events
Both the initiation and inhibition of cell division are triggered by events external to the cell when it is about to begin the replication process. An event may be as simple as the death of a nearby cell or as sweeping as the release of growth-promoting hormones, such as human growth hormone (HGH). A lack of HGH can inhibit cell division, resulting in dwarfism, whereas too much HGH can result in gigantism. Crowding of cells can also inhibit cell division. Another factor that can initiate cell division is the size of the cell; as a cell grows, it becomes inefficient due to its decreasing surface-to-volume ratio. The solution to this problem is to divide.
Whatever the source of the message, the cell receives the signal, and a series of events within the cell allows it to proceed into interphase. Moving forward from this initiation point, every parameter required during each cell cycle phase must be met or the cycle cannot progress.
Regulation at Internal Checkpoints
It is essential that the daughter cells produced be exact duplicates of the parent cell. Mistakes in the duplication or distribution of the chromosomes lead to mutations that may be passed forward to every new cell produced from an abnormal cell. To prevent a compromised cell from continuing to divide, there are internal control mechanisms that operate at three main cell cycle checkpoints. A checkpoint is one of several points in the eukaryotic cell cycle at which the progression of a cell to the next stage in the cycle can be halted until conditions are favorable. These checkpoints occur near the end of G1, at the G2/M transition, and during metaphase
plz mark me as brainleast my friend
What is the name of the site of transcription?
1. Amino acid
2. Nucleus
3. Cytoplasm
4. Mitochondria
John Ray introduced a new method of grouping by similarities in appearance.
True
False
Answer:
true
Explanation:
Why is writing on word better than writing on a sheet of paper?
Answer:
because on paper your hand wrighting is bigger and you go through more sheets and on word it has auto correct and auto save and suggestions
Explanation:
can i have brainlyest
Answer:
Writing in Word is more convenient
Explanation:
Word has a host of text, correction software it suggests proper grammer and spelling and can format your doucument.
How would you define informed consent?
[Type answer here]
Answer:
answer :
Explanation:
Explanation:
Mitosis vs Meiosis, someone help me with this, ill give brainiest.
Mitosis gives two nuclei, and hence two cells while meiosis gives four.
2. CellsMitosis gives identical cells to each other and to the mother cell while meiosis leads to genetic variation due to crossing over and independent assortment.
3.DivisionMitosis includes one division while meiosis includes two.
4. Crossing overIt takes place in Meiosis while absence in Mitosis.
5. ChromosomesMitosis produces diploid cells (46 chromosomes) whereas meiosis produces haploid cells (23 chromosomes)
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6.______________________ is a special type of muscle found only in your heart and causes your heart to beat.
smooth muscle
skeletal muscle
cardiac muscle
Explanation:
the answer is C cardiac muscle I'm pretty sure this is the correct answer
a description of the forest ecosystem
Four differences between viruses and bacteria
Answer:
bacteria :
1. need microscope to see them.
2. need warmth moisture nutrients.
3. saprophyte or parasite.
4. can be harmful or useful.
viruses:
1. smaller than bacteria.
2. spend on living host.
3. always parasite.
4. where is harmful.
