Answer:
Fertilization is the fusion of gametes to form the zygote. ... Fertilization allows restoring of the chromosome number of the species as the two nuclei of gametes fuse together. Therefore, the number of chromosomes in the zygote is twice the number of chromosomes in gametes.
Explanation:
3. Identify the stages of these cells
When are genes in dna expressed?
when genes produces protein in a cell.
Some dairy farmers want to increase the amount of milk produced by their cows. How can the farmers use selective breeding to increase milk production?
Answer:
By choosing cows that are high milk producers
Explanation:
Answer: By choosing cows that are high milk producers
Explanation:
ANYONE KNOW THIS?? NEED ANSWERS ASAP!!
What are the four word that you use to explain enzymes?
Answer:
substance that acts as a catalyst in living organisms,
Explanation:
bone becomes moist when kept in dilute hydrochloric acid, why?
Answer:
bone. when a bone is dipped into hcl medium, the calcium of bone slowly starts to dissolve due to action of strong acid
Explanation:
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Answer:
Example: Grass(producer)--->Grasshopper(Primary)---->blue bird(Secondary consumer)--->Rattlesnake(Teritary)
Example 2:Oak Tree leaves(Producer)--->caterpillar(primary producer)---->Treecreeper(Secondary)---->Hawk(Teritary)
Example 3:Grass(producer)--->Grasshopper(Primary)(again lol)--->Frog(Secondary)--->Snake(Teritary)
(Note:I hope this helps because I learn this food chain in my biology class ^^)
Can someone help me
Name three species of invertebrates that live in the US in a wetland
Answer:
Shrimp, Snails, and dragonflies
Explanation:
Why is biomass a better alternative to oil?
A. Biomass does not release carbon dioxide.
B. Biomass creates radioactive waste.
C. Biomass does not need to be burned.
D. Biomass is a renewable resource.
Answer:
D
Explanation:
Biomass does release CO2 (when burned) because it is organic - contains carbon compounds.
Biomass does not create radioactive waste.
Biomass is renewable because it comes from plants, whereas oil takes millions of years to make, so it is non-renewable.
The correct option is (d) Biomass is a renewable resource.
Because it can be created from sources that are renewable and can be continuously replenished, such as garbage and plants, bioenergy, also known as energy obtained from biomass, is a sustainable substitute for fossil fuels. And cut down on our gasoline supply, compromising our national security.Some of the advantages of biomass energy are:-A constant and accessible renewable energy source is biomass.It has no carbon emissions.It lessens our dependency on fossil fuels.Is more affordable than fossil fuels.The generation of biomass gives manufacturers a new source of income.Fewer trash items in landfills.Learn more about advantages of biomass energy brainly.com/question/11381203
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What best explains why there's fewer secondary consumers than producers?
Answer:
because of inefficiency
Explanation:
The organisms that eat the primary consumers are meat eaters (carnivores) and are called the secondary consumers. ... Because of this inefficiency, there is only enough food for a few top level consumers, but there is lots of food for herbivores lower down on the food chain. There are fewer consumers than producers.
Which is a feature of a cladogram?
A The characteristics must be shared among the organisms.
B The characteristics must be different among the organisms.
C It must contain at least three different shared characteristics.
D It must contain at least three different groups of organisms.
Answer:
C
Explanation:
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A woman who has a sex-linked recessive trait has a son with a man who does not have that trait.
Which of the following is true about their son?
Choose 1 answer:
(Choice A)
A
There is a 0% chance he will be affected.
(Choice B)
B
There is a 50% chance he will be unaffected.
(Choice C)
C
He can only be an unaffected carrier.
(Choice D)
D
There is a 100% chance he will be affected.
Explanation:
50% chance of a having a girl without the disease who is a carrier. This means that none of his children would actually show the signs ... choice A.
Answer:
100 percent
Explanation:
(GIVING BRAINLIEST!!)
Read the following descriptions of two different types of precipitation. Then, decide if they are both true or not.
Rain: occurs when the air above and below clouds are both above freezing; most likely in the summer
Sleet: occurs when the air above and below clouds are both below freezing; most likely in the winter
Are the descriptions true?
A) The description of rain is true, but the description of sleet is false.
B) Both descriptions are inaccurate and false.
C) Both descriptions are accurate and true.
Both descriptions of the rain and sleet are accurate and true.
What is precipitation?The term precipitation refers to the down fall of water that have been condensed in the cloud as rain drops.
We know that rainfall is most likely during summer while sleet is more likely during winter. Therefore, both descriptions of the rain and sleet are accurate and true.
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Answer:
the answer is B i took the test!
Explanation:
Light energy is changed to cell energy in the process of _______________
Answer:
Light energy is changed to cell energy in stage 1 of photosynthesis. The green pigment that a absorbs light energy is chlorophyll. Fermentation is the opposite process of cellular respiration.
Explanation:
Help please! I’ll cashapp if I have too
the greek root geo means
Answer:geo. earth, ground.
Explanation:
The allele for red feathers (R) is dominant and the allele for brown feathers (r) is recessive. If the following cross occurs, what are the possible genotypes and phenotypes possible and what is the probability of each occurring?
Answer:
Genotype: Rr
Phenotype: Red feather
probability: RR: 0%, Rr: 100%, rr: 0%
Explanation:
Punnet Square:
R R
r. Rr. Rr
r Rr Rr
To stop a wound from bleeding, platelets in the blood clump together to form a blood clot. The clot dries into a hard scab to protect the wounded area. Underneath the scab, the blood supplies nutrients and oxygen that help new skin cells form. As the skin regenerates, the wound closes.
Which body systems interact with the integumentary system to close the wound?
A. Circulatory and reproductive
B. Immune and circulatory
C. Reproductive and immune
D. Digestive and endocrine
B. Immune and circulatory systems interact with the integumentary system to close the wound.
What is integumentary system?The integumentary system is the body system that protects the body from damage and disease, and helps regulate body temperature. It includes the skin, hair, nails, and sweat and oil glands.
The skin is the largest organ of the body and serves as a barrier against physical, chemical, and biological agents. Hair and nails provide protection and support, while sweat and oil glands help regulate body temperature and moisturize the skin. Additionally, the integumentary system plays a role in regulating the body's water balance, storing vitamins, and sensing touch and temperature.
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Which molecules contain only carbon, hydrogen, and oxygen?
Select all that apply.
carbohydrates
glucose
proteins
O nucleic acids
[tex] \huge \purple{\tt{Answer:}} [/tex]
glucose
The molecule here that contains only carbon, hydrogen, and oxygen is Glucose. So the correct option is B.
What is glucose?Glucose is a monosaccharide or simple sugar. It is a kind of sugar found in honey and fruits. Glucose is the major sugar present in our body.
It is the main source of cellular energy utilized in the process of cellular respiration. Thus, it helps in proper cell functioning and metabolism.
Starch molecules are composed of various monomers of glucose. They are the polysaccharides of glucose. The structural formula for glucose is C₆H₁₂O₆. This means that glucose is only composed of carbon hydrogen and oxygen atoms.
Glucose is a type of Carbohydrate but there are other kinds of carbohydrates that contain elements like nitrogen and sulfur. Proteins and nucleic acids also contain other elements like phosphate, nitrogen, and sulfur.
Thus only glucose is composed of oxygen, carbon, and hydrogen.
Therefore the correct option is B.
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Mitosis starts and ends with
diploid cells. That means they
have tWO sets of chromosomes
(both parents each contribute a
set). In humans, how many
chromosomes should be in each
of these diploid cells after
mitosis?
6.
Answer:
23
Explanation:
After mitosis two identical cells are created with the same original number of chromosomes; 46. Haploid cells that are generated through meiosis, such as egg and sperm, only have 23 chromosomes, because, remember, meiosis is a "reduction division."
why is recombination important to evolution
Gene expression is influenced by many factors. Which of the following is a factor in gene
expression?
Answer:
Answer: The Environment.
Environmental factors, such as diet, medicines, or exposure to toxins, can change how genes are expressed.
What are factors affecting gene expression?Gene expression is the process through which a gene's information is used to create a functioning gene product, allowing it to produce end products like proteins or non-coding RNA and ultimately have an impact on phenotypes.
Expressivity can be impacted by a number of elements, such as genetic make-up, exposure to dangerous substances, other environmental effects, and age. Penetrance and expressivity both have a range: People who carry the gene may or may not exhibit the trait, and when they do, the trait's expression can take many different forms.
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Who came up with the idea that random evolution is guided by natural selection to produce order and the complex function
Darwin
Lamarck
Wallace
NOTE: Select which one
Answer:
Charles Darwin
Explanation:
Charles Darwin was not yet 30 when he got the basic idea for the theory of evolution. But it wasn't until he turned 50 that he presented his argument to the world.
Answer:
Charles Darwin
Explanation:
Darwin came up with the idea that random evolution is guided by natural selection to produce order and the complex function.
Photosynthesis can be modeled by its overall chemical reaction. Which two substances are the products, or outputs, of this reaction?
Answer:
glucose and oxygen
Explanation:
Which of the following statements about nuclear energy is true?
A)
Nuclear energy cannot be contained nor controlled.
B)
Nuclear energy is contained in nuclear bonds.
C)
Nuclear energy is less efficient than other energy forms.
D)
Nuclear energy processing does not affect the environment.
E)
All of the above
Answer:
B) Nuclear energy is contained in nuclear bonds.
Explanation:
Hope this will help
The statement that is true about nuclear energy is:
B) Nuclear energy is contained in nuclear bonds.
What is Nuclear bonds?Nuclear bonds are the strong attractive forces that hold the nucleus of an atom together. These bonds are created by the strong nuclear force, which is one of the four fundamental forces of nature
Nuclear energy is the energy released by the process of nuclear reactions, either by the splitting (fission) or joining (fusion) of atomic nuclei. This energy is harnessed to produce electricity in nuclear power plants.
The other statements are not true:
A) Nuclear energy cannot be contained nor controlled. - This is not true. Nuclear energy can be contained and controlled through proper design and operation of nuclear power plants.
C) Nuclear energy is less efficient than other energy forms. - This is not true. Nuclear energy is a highly efficient source of energy that can produce large amounts of electricity with relatively low fuel consumption.
D) Nuclear energy processing does not affect the environment. - This is not true. The processing and disposal of nuclear waste can have significant environmental impacts, and accidents or leaks at nuclear facilities can release harmful radiation into the environment.
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what is the interaction between organisms or animals for resouces mates shelter and space
Answer:
Symbiosis
Explanation:
Another category of interactions between organisms has to do with close, usually long-term interaction between different types of organisms. These interactions are called symbiosis
The bacteria in the example evolved because of...
gene flow
genetic drift
natural selection
Answer:
natural selection
Explanation: that is the only thing that does cause evolution
The bacteria evolved because of natural selection, developing antibiotic resistance, hence option C is correct.
How bacteria develops natural selection?Natural selection is stated as a process by which the organism has the ability to survive to the fittest. Bacteria have been found to develop antibiotic-resistance genes in it making them, resistant to antibiotics.
Natural selection phenomena in bacteria happen when it develops antibiotic-resistance feature in their cells. When bacteria are exposed to the antibiotic, those who are susceptible to this eventually die, but having resistance to this they survive.
Gene flow, genetic drift, and natural selection both contribute to evolution, this refers to the genetic composition over time.
Therefore, option C is correct.
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Beavers are able to adapt to the changing conditions of all four seasons. Which of the following would threaten the survival of beavers?
A. hot temperature in July
B. freezing rain in
December
C. forest fire in October
D. snow in January
Answer:
C
Explanation:
The question says that beavers are able to adapt to changin questions in each season, so we know that snow in winter, or heat in summer won't bother them. These types of variations in weather are what the beaver is used to. This would eliminate A (July is in summer, so the beavers would expect heat), B (December is in winter, so the beavers would expect freezing conditions), and D (January is in winter, so the beavers expect the snow). That leaves us with C. Fires are not a typical condition for a season- fires aren't expected every fall. Therefore, when there is a fire, beavers will not know what to do. Hope this helps, and feel free to ask me for more clarification!
Answer: I think The answer is A,B,C,D
Explanation: ( thanks for the point btw :)
3. The most common types of plants in the taiga biome are...
A. deciduous trees
B. short shrubs
C. coniferous trees
D. grasses
A family decides that they want to produce Chihuahuas with long hair. Identify a procedure that could be used to make sure that the puppies all have long hair SC.912.L.16.10
A. All of the above
B. Genetic engineering could be used to manufacture puppies with long hair
C. Selectively breeding two dogs with long hair to produce long-haired puppies
D. A long-haired dog could be cloned to produce long haired puppies
Answer:
A
Explanation:
The procedure that could be used to make sure that the puppies all have long hair is selectively breeding two dogs with long hair to produce long-haired puppies. Therefore, the correct option is C.
What is selective breeding of dogs?Selective breeding involves mating two dogs with desirable traits (in this case, long hair) in order to produce offspring with those traits. Over time, this can lead to a population of dogs that consistently exhibit the desired trait.
Genetic engineering (option B) and cloning (option D) are not currently practical or ethical methods for producing long-haired Chihuahuas. These techniques are complex, expensive, and not yet reliable for producing specific traits in animals. Additionally, the ethics of these methods are still under debate.Therefore, the correct option is C.
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