Answer:
3
Explanation:
Male ; EeHh
Female ; EeHh
Then,
possible gametes for each = EH / Eh / eH / eh
where,
EH Eh eH eh
EH EEHH EEHh EeHH EeHh
One eye One eye One eye One eye
One horn One horn One horn One horn
Eh EEHh EEhh EeHh Eehh
One eye One eye One eye One eye
One horn Two horn One horn Two horn
eH EeHH EeHh eeHH eeHh
One eye One eye Two eye Two eye
One horn One horn One horn One horn
eh EeHh Eehh eeHh eehh
One eye One eye Two eye Two eye
One horn Two horn One horn Two horn
Therefore,
One eye, one horn:One eye, two horn:Two eye, one horn:Two eye,two horn
is,
9 : 3 : 3 : 1
This ration proves that the above working is correct and is dihybrid cross.
What is the greatest threat humans pose to biodiversity?
Answer:
habitat loss, over-harvesting, and introduction of exotic species
Explanation:
The way that people have altered natural environments to create room for farms or to collect natural resources has posed the greatest harm to biodiversity yet, but as climate change intensifies, it will have a rising influence on ecosystems.
What is biodiversity loss?The term "biodiversity loss" describes the decline in biodiversity brought on by the extinction or relocating of species. Some people might not consider the extinction of a certain species to be significant, especially if it is not a charismatic species such as the Bengal tiger or the humpback dolphin.
However, according to estimates from scientists, the present pace of species extinctions is several times higher than the background, or average, rate seen throughout Earth's history. Within our lifetimes, this amounts to the extinction of tens of thousands of species.
The breakdown of ecosystems is anticipated to have drastic repercussions on human welfare. Because of the intricate relationships between species, a loss of biodiversity may have a ripple effect on ecosystems.
One species' extinction, for instance, may result in the extermination of another. Scientists evaluate which species are in danger of extinction as well as the state of the ecosystems to gauge the loss of biodiversity.
Therefore, the way that people have altered natural environments to create room for farms or to collect natural resources has posed the greatest harm to biodiversity yet, but as climate change intensifies, it will have a rising influence on ecosystems.
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choose the odd one out in each of the following group of organisms and give a reason for your choice: (a) bread mould , yeast, algae, mushroom
Answer:
Algae
Explanation:
Because algae is one of the plants and the rest are in fungus.
define phanerograms with examples.
Answer: Phanerogams are plants that have special structures for reproduction and generate seeds. Also, according to if the seeds are enclosed in a fruit or not, phanerogams are divided into gymnosperms and angiosperms.
Explanation:
Hope it helps you if not sorry
A geneticist wants to determine what mutation in a DNA molecule changed the structure of a specific protein. What would the scientist need to know before planning the investigation?
The normal sequence of bases that code for the protein
Whether the mutation was a substitution, insertion, or deletion
The total number of bases in the DNA molecule
How many thymine bases are in the DNA molecule
A mutation is any change in the sequence of DNA because of any reason such as deletion, insertion, etc. To determine the mutation in a DNA molecule changed the structure of a specific protein scientists should know the normal sequence of bases that code for the protein.
What is mutation?A mutation is a random change in the DNA sequence either due to insertion, deletion, or substitution.
By mutating a gene's code for making a protein, a variant can leads to a protein's improper functioning or to not being produced at all.
Scientists must mandatorily determine the normal base sequence of the protein code before investigating the mutation in the DNA sequence for a particular protein.
Thus, the correct option is A.
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Unbalanced forces causes acceleration.
A. 1st Law
B. 2nd Law
C. 3rd Law
(will mark brainliest if answers all 3 pls!)
Hope This Helps!
#[tex]AnimePower[/tex]
Explanation:
3.
Answer: Newton's Second Law of Motion
Explantation: Newton's Second Law of Motion is concerned with the effect that unbalanced forces have on motion. An unbalanced force acting on an object causes it to accelerate. The more mass the object has, the more inclined it is to resist any change to its motion.
4.
Answer: The First Law
Explanation: The first Law states that all objects have inertia. The more mass an object has, the greater its inertia and the more force it takes to change its state of motion. The amount of inertia an object has depends on its mass which is roughly the amount of material present in the object.
5:
Answer: Newton's Third Law
Explanation: Newton's Third Law of Motion. Whenever one body exerts a force on a second body, the first body experiences a force that is equal in magnitude and opposite in direction to the force that it exerts.
Innate immunity ________. is found only in vertebrates is the first, and most general, mechanism of protection against pathogens depends on an infected animal's previous exposure to a pathogen is based on recognition of antigens that are specific to a pathogen
Answer:
is the first, and most general, mechanism of protection against pathogens
Explanation:
Innate or natural immunity is one of the two types of immunity an organism can possess (the other being; acquired immunity). Innate immunity is the FIRST defensive response of an organism against pathogenic attacks. The acquired immune system is only activated when the innate immune system has been penetrated or surmounted.
For example, the skin, mucus secretion, inflammation etc. are all natural or innate defenses against foreign invaders. Therefore, according to this question, innate immunity the first, and most general i.e. commonly used, mechanism of protection against pathogens.
hi pls help i’ll give brainliest
Answer:
The third choice.
Explanation:
It is near the Orion Arm and extremely far from the center. Although I don't know about the "tip"
Which of the following is the best resource to help you learn about the appearance, habitats, and behaviors of birds in your area?
Photography books
Field guides
Microbiology textbook
TV shows
Answer:
Field guides
Explanation:
Various species of plants and nimals exists some of which bears very similar resemblance but for some key differences which may be unknown to learners or observers. A field guide gives a description of plants and animals, stating key physical differences between similar plants and animals. This helps learners distinguish between the related organisms. Field guides are most useful when applied to habitats where a range of similar organisms have been spotted and the field guide is then taken to such habitat to physically identify each different plant or animal.
Answer:
Field Guides
Explanation:
What is true about Anemia? *
1. Disorder of platelets
2. uncontrolled production of WBCs
3. Increase in number of RBCs
4. Abnormal production of chain of Hemoglobin
Answer: 4. Abnormal production of chain of Hemoglobin
Explanation:
Anemia is a condition where the cells in the body do not get enough oxygen because the red blood cells needed to transport them are either too little or are dysfunctional.
One way the red blood cells can be dysfunctional is when they have an abnormal type of hemoglobin. Hemoglobin is necessary in red blood cells to enable to transportation of oxygen and if it is dysfunctional, oxygen will have problems being transported which would lead to anemia.
Spring 1 and Spring 2 were the same. Then, Spring 1 was pushed together with a little and clamped in place. Spring 2 pushed together a lot and clamped in place. Which spring has more potential energy?
Answer:
spring 2 is the answer..
Answer:
Spring 2
Explanation:
project of science.
Explain the parts and their function of the brain ?
Explanation:
The human brain has following main parts:
1. Cerebrum:
It is also called big brain.
It is the centre of intelligence, memory, imagination and emotions.
It is responsible for ordinary senses.
Injury in cerebrum causes coma .
2. Medulla oblongata:
It is the lower most part of the brain.
It receive and integrates signals from spinal cords and sends resulting impulses to the cerebrum and cerebellum.
3. Cerebellum:
It is called as Small brain.
It makes body movement smooth and steady.
It maintains equilibrium and controls the body posture.
I need help with this gizmo
A possible hypothesis for this situation is that tank 1 contains denitrifying bacteria, tank 2 contains nitrite nitrifying bacteria, and tank 3 contains ammonia nitrifying bacteria.
What is a hypothesis?A hypothesis, which is a common term used in experiments refers to a possible explanation for the results or phenomenon observed. In this case, a hypothesis needs to focus on the type of bacteria that are present in each of the tanks.
This means that to write a hypothesis we need to relate the type of bacteria to each of the tanks.
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The allele Who is characteristics overshadow the homologous partner
A-Recessive
B-Hybrid
C-Dominant
Genotype
Cells with a full set of chromosomes are referred to as diploid or 2n, whereas cells with half the chromosomes are haploid or n. At which stage(s) of meiosis I are the cells diploid and at which stage(s) are they haploid
Answer:
Diploid → Prophase, metaphase, and anaphaseHaploid → TelophaseExplanation:
During prophase I, chromosomes get condensed. Each of the chromosomes gets in pair with its homologous one. They do so to make the crossing-over possible, a stage where they interchange their parts → 2n
During metaphase I, each of the homologous pairs is driven to the equatorial plane, where they randomly line up → 2n
During anaphase I, occurs the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells. There are two alternatives per homologous pair → 2n
In telophase I, half of the chromosomes are already in one of the poles, while the other half is on the other pole. Each group of chromosomes has now half the number of the original cell. The nuclear membrane forms again in each pole → n
Finally, occurs cytokinesis, which involves the invagination of the cell membrane and cytoplasmic division.
The two new cells are ready for meiosis II.
Mitosis and Meiosis are the two types of cell division, in which the genetic material is replicated and transferred to the daughter cells.
The stages of meiosis in which chromosomes are diploid are prophase, metaphase, and anaphase. The haploid chromosomes are observed in telophase.
Meiosis is a reduction division in which genetic material is halved, such that a reduction in which diploid parent cells give rise to haploid daughter cells.
The stages of meiosis at which chromosomes are diploid and haploid are:
1. Prophase I is the first phase of meiosis I. The chromosomes are condensed and pair with the homologous chromosomes.
2. Metaphase I is characterized by the homologous pairs aligning at the equatorial plane.
3. Anaphase I is the independent separation of chromosomes, which migrate to opposite poles.
4. Telophase I is represented by the separation of chromosomes having a haploid number of chromosomes, which are now segregated into daughter cells.
Therefore, telophase I am the phase in which chromosomes are present in haploid numbers.
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Rot could wipe out all Cavendish bananas. What do you propose for a solution?
Answer: i would propose using a fungicide on the bananas, use one that isn’t harmful to other harmless plants, insects, or animals.
URGENT PLEASE HELP
Rashid is conducting a seminar on the importance of coral reefs. Which point should he include?
A. that corals can be picked from the sea and sold
B. that corals are poisonous and can be used for pest control
C. that corals have a hard exoskeleton that can be used for construction of buildings
D. that corals are impervious to damage
E. that corals provide economic assistance to coastal populations through fisheries
Answer:
lo
Explanation:
Gametes produced by the parents are shown along the __________________ and _______________ sides of the Punnett square.
Answer:
Vertical and horizontal
Explanation:
A punnet square is a tabular chart used in genetics to display the genotypic composition of the offsprings of two parents. To construct a punnet square, the alleles of the gametes produced by the parents is required.
The gametes produced by each parent via meiosis are placed along the vertical and horizontal sides of the punnet square. For example, if a cross occurs between two parents with the following genotype: AaBb and AAbb. The parents will produce the following gametes:
AaBb - AB, Ab, aB, ab
AAbb - Ab, Ab, Ab, Ab
These gametes produces by each parent will be placed along the sides (vertical and horizontal) of a punnet square to determine the genotype of the offsprings that will be produced.
4. Eukaryotic DNA is shaped like a
a. nucleotide.
b. X in a circle.
c. double helix.
d. covalent bond.
Answer:
The answer is a double helix
describe how the liver and the pancreas regulate the glucose level in the blood when the glucose level drops
Answer:
ok good question. pancreas is an organ which is found in both the exocrine and endocrine gland that's why sometimes it is called heterocrine. The outer portion of the pancreas(pancreatic islets) secrets the pancreatic juice,insulin and glucagon. let see them deeply: the insulin is a hormone secreted by the pancreas which is used for to lower the blood glucose method in appropriate standard they change it into glycogen and stored in liver. the other one glucagon undergoes a catabolic reaction of the glycogen to the glucose when the blood glucose level is very low so,the liver works in response of lower blood glucose level and the pancreas works in elevated blood glucose level thank you
Cancer cells Group of answer choices are dedifferentiated. are impossible to grow in culture. are particularly sensitive to extracellular signals. divide uncontrollably and then die.
Answer:
The options are not complete, here are the remaining options from other websites.
d. divide uncontrollably and are immortal
e. have an extra set of chromosomes, which keeps them dividing.
The correct answer is divide uncontrollably and are immortal .
Explanation:
This because cancer cells are abnormal cells that divide uncontrollably and does not follow the normal cell cycle. abnormal cell that doesn't follow this cycle. Instead of them to die, the car continually reproduce more abnormal cells that can easily invade nearby tisssues. They can travel to all part of the lymph and body parts.
Hotter then the sahara desert is an example of a metaphor hyperbole personification or simile
Answer:
hyperbole (hyperbole is an exaggeration, just like the sentence)
A seed, known as "pinhão", is the great evolutionary novelty that is present in Gymnosperms plants. Choose the correct affirmative sentence related to seeds.
Hi. Unfortunately, you didn't show the answer options, which makes it impossible for me to answer your question. However, I'm going to give you some general information about seeds that can help you find the right answer. Hope this helps you.
Seeds are structures responsible for plant proliferation. They exist only in gymnosperms and angiosperms and are absent in bryophytes and pteridophytes. All seeds are formed in the ovary of flowers as a result of the plant fertilization process.
All seeds are formed by three structures known as integument, nutrient and embryo. The embryo is what gives rise to another plant, which will grow after the seed is planted and germinates. Nutrients will be responsible for meeting the needs of the new plant during the beginning of its development. The integument, in turn, has the function of protecting the embryo.
Answer the following question in the attached image. Thank you
help me in 10 11 12, please
sorry sorry sorry sorry
need help with this please
Answer:
Nucleic Acid
Explanation:
Have a good day :)
Lab: Natural Selection
Assignment: Lab Conclusion Active
Prompt
Address the following points in paragraph form to write your conclusion.
1. Restate the overall purpose of the experiment. (Why did you do this experiment? What did it teach you?)
2. What were the major findings? (summarize the data you collected)
3. Was the hyposthesis supported by the data? (state your hypothesis and explain how your data relates to your hypothesis)
4. How could this experiment be improved? (If you did this again what could you do differently?)
5. What could be studied next after this experiment? (What else could you test to help you better understand this topic?)
DA
Answer:
sorry if i did not get it right : B
Explanation:
2. To investigate how the vegetation in a coastal ecosystem changes with
distance from the high tide mark, the BEST sampling technique would be
A. a line transect placed across the ecosystem
B. regular observation of the ecosystem
C. a quadrat placed randomly within the ecosystem
D. a piece of string placed across the ecosystem
What is the objective for cloning
Answer:
the "productive" aim: to obtain selected organs, tissues and cell lines. The product of cloning would always be an organism-individual (with or without encephalon) obtained by cloning through nucleo-transfer having the selected genetic patrimony.
Explanation:
It's important to remember that cloning does not manipulate the animal's genetic make up nor change an animal's DNA. ... Cloning allows livestock breeders to create an exact genetic copy of an existing animal, essentially an identical twin. Clones are superior breeding animals used to produce healthier offspring.
A dominant allele masks/hides the effect of a recessive allele.
Answer: True
Explanation: If you have a dominant allele it will show in the phenotype of the organism. To show a recessive allele you need a recessive pair consisting of only recessive alleles
Hope this helps
What is the function of the small, dark organelles labeled E?
They assemble amino acids into proteins.
Answer:
It is a ribosome They produce proteins for the cell.
Explanation:
Hope this helps :)