The diagram shows the life cycle of a fern. HELP ASAP!!!!
What does stage 2 show?
A) A mature spore-producing fern plant has fonds and produces spores.
B) A spore grows into a mature gamete-producing plant.
C) A zygote forms when a sperm fertilizes an egg cell
D) A gamete-producing fern plant is flat and shaped like a heart.
Answers
Answer:
the answer is b
Explanation:
if you need the explanation it is because the plant with the brown dots beside it is the plant producing the spores and the plant next to it is one of said spore growing into a gamete producing plant i honestly hope this helps
Related Questions
fear of bloodthe fear of blood is called
Answers
Answer:
Alsbzpakvaoallabspams
Answer:
This fear of blood is termed "hemophobia," a word derived from the Greek "haima" (blood) and "phobos" (fear).
Hope it helps!!!
(b) Explain how the addition of a phosphate group to certain amino acids of Brec likely affects the tertiary structure and function of Brec. Explain how
the addition of a small RNA could prevent the activation of kinase D?
Answers
Answer:
Protein phosphorylation can activate/deactivate protein function, while small RNAs can be used for repressing translation of mRNAs through the RNA interference (RNAi) pathway
Explanation:
Protein phosphorylation is one of the most important posttranslational modifications (PTMs) that acts to activate, inhibit, or reversibly switch on/off protein function. Protein phosphorylation confers a reversible and versatile process that cells use to transmit signals and respond to environmental stimuli. This PTM is well known to modify the tertiary structure of the protein and thus activate/inhibit protein functions such as, for example, signaling pathways associated with protein interactions. In consequence, protein phosphorylation can be used by a cell to regulate Brec activity. On the other hand, small non-coding RNAs (ncRNAs) such as, for example, microRNAs (miRNAs), small interfering RNAs (siRNAs), and PIWI-interacting RNAs (piRNAs), are regulatory molecules that bind by complementary base pairing to messenger RNAs (mRNAs) in order to repress translation and/or trigger mRNA degradation through the RNA interference (RNAi) pathway. The RNAi pathway is widely used in molecular biology to silence genes of interest (for example, in this case, the gene that encodes for the kinase D protein).
1. Adding the phosphate group to the amino acid chains is known as phosphorylation. This attachment affects the tertiary arrangement and function of Brec.
Amino acids join together to form the protein that needs to be stimulated and deactivated for proper functioning.Protein phosphorylation is very crucial in post-translation modification.For protein function, it acts as an activator, inhibitor, reversibly on and offs the switch.Phosphorylation assures a reversible process to the cell to transmit signals for the cell functioning.Therefore, Brec activity can be controlled by the phosphorylation of proteins.2. Small RNA's are RNA fragments which is around 150 nucleotide in length.
Functionally significant small RNA's such as siRNAs, microRNAs scaRNAs and many other acts as regulatory molecules which target and adheres to the mRNA transcripts.This binding inhibits the translation process or degrades the mRNA by activating the RNA interference (RNAi) pathway.RNAi pathway is used to suppress the activation of the kinase D.To learn more about phosphorylation and small RNA follow the given link below:
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what two things can happen to the food made by plants?
Answers
Answer:
Food made by plants can get used by plants or by other animals as plants maybe eaten by other organisms that feed on plants by living on them, these organisms are called parasites. Or else the food can be used up by plants to carry out their metabolic activities ( activities at cellular level which keeps the plant alive ) like cellular respiration
Answer:
The food that is prepared by the plant is utilized for its metabolic processes, the excess food is stored in the form of starch, in the plants. ... The plants prepare starch by a process of photosynthesis with the sunlight along with "water and carbon dioxide
The food produced by the plants is in the form of sugar and the extra sugar produced is changed to starch and is stored in different parts of the plant such as in roots, stems, leaves, fruits and flowers.
Explanation:
hope this is what u want
hope it helps u
Tissue is made up of DIFFERENT or SAME group of............
Answers
Answer:cells?
Explanation:
Which segment(s) correspond(s) to the boiling point of the substance?
A
B
C
D
E
Answers
Answer:
it is the E because the boiling point of water is 100 degrees
a cross that results from a yellow and a purple allele together will result in what color corn kernel?
1.) yellow
2.) purple
3.) orange
4.) doesn’t exist
Answers
Answer:
1.) yellow
Explanation:
The high possibility of corn kernel colour is yellow if the yellow colour allele is dominant because the dominant trait or allele always appear in the offspring while on the other hand, the recessive allele does not appear in the shape and structure of the offspring so we can say that dominance is the reason for the appearance of colour in the seed or kernel.
3. Which of the following is NOT a method that has been used to predict earthquakes?
A) Trying to observe precursors such as foreshocks and changes to animal behavior.
B) Watching changes in weather patterns.
C) Using past earthquake patterns.
D) Predicting stress accumulation based on how recently an earthquake occurred.
Answers
Predicting stress accumulation based on how recently an earthquake occurred is not the method that has been used to predict earthquakes. The correct option is D.
What is earthquake?Earthquakes typically result from subsurface rock breaking unexpectedly and rapid movement along a fault.
The seismic waves that cause the ground to tremble are brought on by this quick release of energy.
When two chunks of the ground abruptly slide past one another, an earthquake results. The fault or fault plane is the area where they slide.
Erratic animal behaviour, such as fearful or puzzled pets, or birdcalls not typically heard at night, can be a clue that an earthquake is about to happen. Water levels in wells or artesian bores suddenly change.
It hasn't been possible to anticipate earthquakes by basing stress accumulation on how recently an earthquake happened.
Thus, the correct option is D.
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For a ________ trait to be observed, both parents must have the allele for that trait and pass it on to their offspring.
Answers
Answer: For a recessive trait to be observed, both parents must have the allele for that trait and pass it on to their offspring.
Cheetahs have become an endangered species due to hunting and loss of their habitat. As a result, there is now very little variation in the traits within their small populations. Which of the following is a result of the limited variation in traits in today’s cheetah population compared to earlier cheetah populations that had greater variation in traits?
A. Cheetahs in current populations are more resistant to new diseases.
B. Cheetahs in current populations have better chances of survival today than they did in the past.
C. Cheetahs in current populations are less likely to become extinct.
D. Cheetahs in current populations are less likely to be able to adapt to environmental changes.
Answers
Answer:
Cheetahs in current populations are less likely to be able to adapt to environmental changes
Explanation:
i got the question wrong cuz some1 but im willing to help others this is the correct answer D is the correct answer:)
Cheetahs in current populations are less likely to be able to adapt to environmental changes. Therefore, option (D) is correct.
What is limited variation?Less possible combinations of characteristics indicates a lower level of genetic diversity within the population. Because of this, there may be fewer genetic variations available to supply potentially beneficial characteristics that can aid in the survival of the population. This can have a detrimental impact on the population's ability to adapt to changes in its environment, which can have negative effects.
Because there is less genetic variation in the current population of cheetahs, it is possible that they will have a reduced ability to adjust to changes in their environment, such as the appearance of new diseases, shifts in climate, or the loss of habitat. This might make the possibility of the population going extinct significantly more likely. Hence, the solution that you should select is option D.
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Considering that a hydrophilic stain was used to stain the skin, explain why the fat vacuoles in adipocytes are white (Hint: Remember hydrophilic will color those areas that "like water", think about water`s relationship with fats).
Answers
Answer:
The hydrophilic nature of the stain explains that these molecules are polar and charge molecules. therefore, attracts the water molecule but due to their polar nature, it will avoid lipid or fat molecules.
Adipocytes are the cells that are made up of fat or lipids that are hydrophobic due to their non-polar nature and due to this fact, these hydrophilic stains will not be able to stain adipocytes and will not be colored by the stain.
Plz help I’m begging plz
Answers
Hope this helps!!:)
Answer: 4
Explanation:
i just know i took cem before
Biomagnification __________.
a.
causes a 90% loss of synergy higher on the food chain
b.
is caused by the ecological succession from a disturbed area to a climax community
c.
is introduced into an ecosystem through nonpoint pollution sources
d.
happens when an increased concentration of a substance accumulates in body tissues
e.
is the transportation of pollution from one ecosystem to another
Answers
Answer:
d :)
Explanation:
3. List two examples of organic farming
Answers
Crop rotation and green manures
What do producers dictate in
an ecosystem?
A. the size of the organisms
B. the age of the organisms
C. the amount of organisms
Answers
Answer:
C. The amount of organisms
Explanation:
Producers produce food from inorganic matter, this then makes food for other organisms in an ecosystem. The amount of producers dictates how much food is available, and by that how many organisms can be present.
47. This cladogram shows the evolutionary relationships among some mammals
based on homologous structures.
Baleen whale
O
Hippopotamuses are more closely related to cows than to
javelinas.
Toothed whale
Hippopotamus
Toothed whales are more closely related to mouse deer than
to hippopotamuses.
Cow
Mouse deer
Cows and mouse deer are more closely related than javelinas
and pigs.
Javelina
Pig
Javelinas and pigs are more closely related than baleen
whales and toothed whales.
Which statement is supported by this cladogram?
Answers
Complete question:
This cladogram shows the evolutionary relationships among some mammals based on homologous structures.
(You will find the cladogram in the attached files)
Which statement is supported by this cladogram?
A Hippopotamuses are more closely related to cows than to javelinas.
B Toothed whales are more closely related to mouse deer than to hippopotamuses.
C Javelinas and pigs are more closely related than baleen whales and toothed whales.
D Cows and mouse deer are more closely related than javelinas and pigs.
Answer:
A Hippopotamuses are more closely related to cows than to javelinas.
Explanation:
A cladogram is a branched diagram of characteristics shared by the organisms of a group, that represents the most probable evolutive history of the linage. Cladograms reflect the phylogenetic relationships among groups through phylogenetic trees.
In the phylogenetic tree, the taxonomic groups of interest are located in the extremes of the lines called branches. The ramification point, which is also called "node" or divergence point, represents the location of the most recent common ancestor.
The common ancestor position will determine how related are two species. If they have a recent common ancestor, they are closely related to each other. On the other hand, if the common ancestor is not recent and is located far away in the tree, then the two species will be less related to each other.
A Hippopotamuses are more closely related to cows than to javelinas. TRUE. Hippopotamuses share a common more recent ancestor with cows than with javelinas. This means that the hyppopotamus is more related to cows than to javelinas. The arrows in the cladogram (attached file) show the positions of the common ancestor shared by Hippopotamuses and Cows, and the common ancestor shared by Hippopotamuses and Javelinas.
B Toothed whales are more closely related to mouse deer than to hippopotamuses. FALSE. Tooth whales are more related to the hyppopotamus. Their common ancestor is more recent than the common ancestor between toothed whales and mouse deer. The arrows in the cladogram (attached file) show the positions of the common ancestors.
C Javelinas and pigs are more closely related than baleen whales and toothed whales. FALSE. They are equally related.
D Cows and mouse deer are more closely related than javelinas and pigs.
FALSE. They are equally related.
Electrons can move from one to what to another?
Answers
Answer:
Atom
Explanation:
Answer:
So having learned that electrons can move from one energy level to another by transmitting or taking in energy, It is not the electrons that are moving in the classical sense. It is the whole atom which has quantum mechanical solutions with energy levels and orbitals for the electron.
Explanation:
Des a magnetic field flows though the inside of a magnet
Answers
Answer:
Magnetic field lines are defined to have the direction that a small compass points when placed at a location. (a) If small compasses are used to map the magnetic field around a bar magnet, they will point in the directions shown: away from the north pole of the magnet, toward the south pole of the magnet.
Explanation:
Answer:
However, the magnetic field lines do not just end at the tip of the magnet. They go right through it, so that inside the magnet the magnetic field points from the south pole to the north pole. Thus the magnetic field lines form a closed loop and do not have any ends.
Explanation:
So it's probably YES.
hey guys so my sister wants a pet now and she is 14 she got a frog for herself but we returned cause i had to take car od it and it wasent fair for me what should i do she also wants to kinda take my frogs awau from me i spent my har earned money im 12 i takee care of them and they were for my burthday i spent my whole saving on them what should i do
Answers
Answer: Tell her that they are your frogs and that she should have taken care of them. And not to take her frogs or i will (expose and seceret to your family or somthing) Or just tell her to get a job and buy her own frogs and take care of them. Tell you mom and dad to> like its not your fault and tell them whats going on. You should try getting a snake or a hamster next. or spider.
Explanation:
8. What factor contributes the most to the overall health and sustainability of an
ecosystem?
Answers
Which types of energy would fall under the form of Kinetic Energy? Mark all that
apply.
Thermal Energy
Nuclear Energy
Electromagnetic Energy
Mechanical Energy
Chemical Energy
Answers
mechanical energy
electromagnetic energy
<3
3. All of the following are true of fresh vegetables EXCEPT
they spoil quickly.
they are very nutritious.
they are cheapest when in season.
they keep as long as canned vegetables.
Answers
they are vert nutritious
how does shell color work to protect the egg from sunlight?
Answers
Answer:
Birds that live in cool climates lay darker eggs, as darker colors absorb more heat from the sunlight
Birds that live in hotter climates lay lighter eggs to prevent the egg from overheating.
The pigmentation acts to thermo-regulate the internal temperature of the egg, acting as a buffer between the embryo and the outside world. It does this by preventing overheating of the egg, through reflecting the sunlight off the pigmentation, rather than allowing it to be absorbed through the shell
3. The Amazonian rain forest is a captivating natural habitat rich in wildlife diversity. Around 3600 different spider species inhabit the area and one of these species of the Laluca lokita. This species is characterized by its great strength and territorial aggressiveness as well as its powerful venom. Within the species, the brown colored abdomen is dominant to the recessive black colored abdomen. Throughout the study of these arachnids, scientific research also found that hairy legs is dominant to hairless legs in this species. During the mating season, a brown, hairy male spider mates with a black, hairless female. In the F1 generation, all of the progeny are brown and hairy. When the progeny of this generation is able to reproduce, a male spider of the F1 generation mates with a black, hairless female. When the resulting progeny are observed for these two traits, 180 are brown and hairy, 185 are brown and hairless, 188 are black and hairy, and 182 are black and hairless. What are the genotypes of the two original parents
Answers
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files.
The temperature at which air becomes saturated with water vapor is called the _____.
Answers
Answer:
dew point
Explanation:
Why does milk have to be kept in refrigerator
Answers
Answer:
so it dont spoil
Explanation:
In boxes A and B, the genotypes are shown for you. You need to determine the phenotypes. In boxes C and D, you must figure out the genotypes yourself first. Then, determine the phenotypes. A Punnett Square has 4 columns and 4 rows. The columns are labeled Upper B Upper E, Upper B e, b Upper E, b e. The rows are labeled Upper B e, Upper B e, b e, b e. Box A in Row 1 Column 1 contains Upper B Upper B Upper E e. Box 2 in Row 2 Column 2 contains Upper B Upper B e e. Box C in row 3 column 3 is empty. Box D in row 2 Column 4 is empty.
Answers
Answer:
Black fur black eyes
black fur red eyes
white fur black eyes
black fur black eyes.
Explanation:
Answer:
black fur, black eyes
black fur, red eyes
white fur, black eyes
black fur, red eyes
Explanation:
Scientists believe that there are three jeans what contribute to skin color in humans.
Which of these best describes the inheritance pattern of skin color?
A. Multiple allele in which offspring recessive three allele from each parent.
B. Multiple allele in which offspring recessive three allele from only one parent.
C. Polygenic in which offspring recessive three allele from each parent.
D. Polygenic in which offspring recessive three allele from only one parent.
Answers
Answer:
C. Polygenic in which offspring receive three allele from each parent.
Explanation:
In genetics, a polygenic inheritance is an inheritance that involves more than one gene i.e. more than one gene controls a particular trait. This is the case of the skin color trait in humans, which is controlled by three genes.
However, since each gene contains two alleles, each parent will contribute three alleles for the three genes to the development of an offspring i.e. three alleles from the father and three from the mother will result in three genes in the offspring, each containing two alleles.
Answer:D
Explanation:
what causes fast rate of growth in eichhornia
Answers
Answer:
Due to short life cycle and mode of reproduction.
Explanation:
The main cause of the fast growth rate of Eichhornia is their mode of reproduction and shorter life cycle. Eichhornia reproduce through sexually and clonally. Its life cycle is only 10 days means that within 10 days the population of Eichhornia becomes double. It reproduces through sexual reproduction as well as asexual reproduction such as clonally which also contributes for the fast growth of eichhornia plant.
Which event causes
the formation of trenches in Earth's crust?
Answers
Answer:
Explanation:Cuando dos placas se presionan entre sí, una sección de una puede quedar bajo la otra. Ese proceso puede cavar trincheras oceánicas profundas o inducir erupciones volcánicas. Y a veces, como en los Himalayas las placas continentales chocan entre sí y, al no tener otro destino, construyen montañas.
Which of the following describes the effect of global climate change on biodiversity: Rising ocean water temperatures have increased the populations of krill and Antarctic silverfish thus increasing Adelie penguin populations for whom these are food sources. Warm temperatures and more frequent dry periods have stressed frog species such as the coqui making them more vulnerable to a lethal fungal infection thus reducing their populations. The warming of ocean waters in conjunction with increased carbon dioxide dissolving into ocean has resulted in boon for coral reefs which are thriving. Mountain ecosystems are not too vulnerable to global climate change because only very hardy species live at high altitude.
Answers
Answer:
Warm temperatures and more frequent dry periods have stressed frog species such as the coqui making them more vulnerable to a lethal fungal infection thus reducing their populations.
Explanation:
Rise in temperature, flooding as well as drought affect biodiversity. As climate changes, there is usually an alteration of temperature as well as weather patterns, the impact is felt by
plant and animal life. According to
Scientists, there is an expectation that
number and range of species, which are regarded as biodiversity will experience declination with greatly increase in temperatures