please help me this is the last question for my hw :D
please help me i need it please
Answer:
first one is false
Explanation:
Can someone help me plz n ty
The punnet square below is set up to determine the probability of the child of a certain couple having freckles.
Which of the following belongs in the upper right square
A.FF
B.F
C.Ff
D.ff
Answer:
I
V
Answer:
below
Explanation:
I'm guessing that the punet square would go like this;
F f
F I I I
____
f I I I
Therefore;
F f
F I FF I Ff I
______
f I Ff I ff I
Concluding;
Your answer would be C. (Ff)
Because; In the top right, F,f is is present.
What is a reason WHY energy is lost in food chains? A Organisms are part of many different food chains. B Energy moves from level to level. C Animals do not use all the energy from the plants. D The bottom levels have more energy than the top levels.
Answer:
A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. ... Food webs consist of many interconnected food chains and are more realistic representation of consumption relationships in ecosystems.
Explanation:
Please help will mark brainliest!
Discuss how can the genotypes and phenotypes of potential offspring be predicted. Explain why some traits appear in a population more often than in others.
Answer:
You can predict geno/pheno types using a Punnet square.
Explanation:
Some traits appear more often because they are dominant. Dominant traits win out over recessive genes.
2. The text explains that selective breeding involves breeding animals or plants for
specific desirable traits. For example, humans bred different types of dogs to
accomplish certain jobs. Farmers breed chickens for having more meat and laying a
greater amount of eggs. Cattle are often selectively bred either for more meat or for
more milk production. The text also notes that breeding animals for size and strength
interferes with natural animal processes.
Based on this information presented in the text, who benefits from the traits different
animals are bred for?
A. humans breeding the animals
B. the animals being bred by the humans
C. both the humans breeding the animals and the animals being bred by the humans
D. animals not being bred by humans
Answer:
A. the humans breeding the animals
Explanation:
It says in there that it interferes with the natural animal processes so it probably doesn't help the animal, and it also said in there that we have breed for more desirable traits in other words we bred them to be more useful to us and give us benefits.
what is an eclipse ? please explain
Answer:
An eclipse is an astronomical event that occurs when an astronomical object or spacecraft is temporarily obscured, by passing into the shadow of another body or by having another body pass between it and the viewer. This alignment of three celestial objects is known as a syzygy
Explanation:
Answer:
An eclipse is an astronomical event that occurs when an astronomical object or spacecraft is temporarily obcured.
why is negative feedback loop more common than positive feedback loop?
Answer:
what are you even talking about
Explanation:
This type of energy is not always predictable.
Answer:
Wind energy.
Explanation:
In this way, the biggest shortcoming of wind energy, which is that it is not always stable and predictable, is solved by the new technology. It goes without saying that this impressive and innovative combination of wind as a renewable energy source and the power of water as storage energy has a lot to offer in the energy production field.
How can I grow my nails?
Hello! I have to write an essay based on the Water Cycle and what it is/does. I will give Brainliest for the correct answer. I will also give 20 points to whoever writes the essay, and has the correct answer. Good luck.
Answer: The water cycle also known as the hydrolic cycle describes the always foward rotation above and below the surfaces of the earth. The mass of water on earths surface remains fairly consistant. However, the water splits up into diffrent groups, freshwater, saline water, ice, and atmospheric water. The water can travel between catorgories such as river to ocean or ocean to atmosphere through evaporation, condensation, precipatation, surface runoff and subsurface flow. When water go through these physical process it can change aswell such as being a liquid, solid,and gas. During evaporation it takes water from it surroundings and cools its enviromwnt,
the exchanges in heat fluctuate the climates tempature.
Which statement is true about a relationship between DNA, a gene and a chromosome?
A gene is similar to DNA in structure but different in function,
O A gene is similar to DNA in function but different in structure.
A gene is made up of small segments of chromosomes.
O A gene is made up of a small segment of DNA.
Answer:
A gene is made up of a small segment of DNA.
Explanation:
If mom and dad have green eyes, you might inherit the trait for green eyes from them.
How does DNA replication in prokaryotes differ from replication in eukaryotes?
Prokaryotic chromosomes have telomeres, and eukaryotic chromosomes do not.
Prokaryotic chromosomes have a single origin of replication, while eukaryotic chromosomes have many.
The prokaryotic DNA had multiple parts to be replicated, compared to one long chromosome in eukaryotes.
The rate of elongation during replication is slower in prokaryotes than in eukaryotes.
Answer:
Prokaryotic chromosomes have a single origin of replication, while eukaryotic chromosomes have many.
Explanation:
If eukaryotic chromosomes did not have many origins of replications then replication would take insanely long due to how much longer eukaryotic genes are!
why is the cell theory and the theory of evolution considered theories ?
Answer:A scientific theory is a broad explanation for events that is widely accepted as true. Evolution is a change in species over time. Evolution occurs by natural selection. The cell theory states that all living things are made up of cells, and living cells always come from other living cells.
Explanation:
OLEASE HELP!! (DONT FAKE ANSWER PLZ)
Answer:
15 - a. twice
15 - c. Winter, shortest
15 - d. Summer, longest
16 - a. equal night
16 - b. 12, 12
16 - c. twice
16 - d. vernal, March 21st
16 - e. September 23rd
Explanation: Good luck! :D
Which is true about reflected light?
Transcribe the DNA
5' GGCTAATTCGAT 3
SHARK
Answer:
How do your cells know what to do? Just like builders have blueprints to tell them how to build a house, your cells also have instructions. Your cells' instructions are molecules of DNA.
What is DNA?
DNA is the material that makes up our chromosomes and stores our genetic information. When you build a house, you need a blueprint, a set of instructions that tells you how to build. The DNA is like the blueprint for living organisms. The genetic information is a set of instructions that tell your cells what to do.
DNA is an abbreviation for deoxyribonucleic acid. As you may recall, nucleic acids are a type of macromolecule that store information. The deoxyribo part of the name refers to the name of the sugar that is contained in DNA, deoxyribose. DNA may provide the instructions to make up all living things, but it is actually a very simple molecule. DNA is made of a very long chain of nucleotides. In fact, in you, the smallest DNA molecule has well over 20 million nucleotides.
Explanation:
______ fats, such as olive oil and sesame oil, are produced in plants and are liquid at room temperature.
Select one:
a.
Hydrogenated
b.
Oxidized
c.
Saturated
d.
Unsaturated
Answer:
d. Unsaturated fats
Explanation:
They're liquid at room temperature, like mentioned. Other examples are avocado oils and pumpkin seeds.
why is important to use an organism with a recessive phenotype in a cross with an organism of unknown Genotype
Answer:
One of the central conclusions Mendel reached after studying and breeding multiple generations of pea plants was the idea that "[you cannot] draw from the external resemblances [any] conclusions as to [the plants'] internal nature." Today, scientists use the word "phenotype" to refer to what Mendel termed an organism's "external resemblance," and the word "genotype" to refer to what Mendel termed an organism's "internal nature." Thus, to restate Mendel's conclusion in modern terms, an organism's genotype cannot be inferred by simply observing its phenotype. Indeed, Mendel's experiments revealed that phenotypes could be hidden in one generation, only to reemerge in subsequent generations. Mendel thus wondered how organisms preserved the "elementen" (or hereditary material) associated with these traits in the intervening generation, when the traits were hidden from view.
It is important to use an organism with a recessive phenotype in a cross with an organism of an unknown genotype to identify the recessive traits.
What are phenotype and genotype?The observable traits of an individual are the result of gene expression; the clinical manifestation of a person with a certain genotype is called the phenotype of an individual. Some examples of the phenotype are height, skin color, eye color, hair nature, etc.
The term "genotype" refers to an organism's whole gene pool, or, in other words, the genetic makeup of that creature. The phrase can also be used to describe the alleles, or different forms of a gene, that an organism carries in a more specific meaning.
A recessive phenotype is used in a cross with an organism of unknown Genotype to identify the recessive traits.
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A cow eating grass is what type of symbiotic relationship
Answer:
COMMENSALISM
Explanation:
An example of commensalism in the grasslands is when the cattle graze the grass, the insects disturb insects that live inside the grass. The cattle egrets eat the disturbed insects and they benefit from this action, but the cattle is not affected by this.
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When vegetables and flowers are grown in greenhouses in the winter, their growth rate greatly increases if the CO2 level is raised to two or three times the level in the natural environment. What is the biological/chemical basis for the increased rate of growth?
Refer back to your lab on photosynthesis and your first assignment in unit 4 on photosynthesis
You must discuss the chemical process of photosynthesis and you have to tie the products made in photosynthesis to growth. You have to also tie this into cellular respiration.
Answer:
co2 ,water,sunlight is gained rapidly by plants and they grow faster.as
co2 ,water,sunlight is responsible for development of plants.
temperature of a substance is determined by
A. how fast the molecules of a substance are moving
B. how hot or cold it is
C. how slow the molecules of a substance are moving
D. what the thermometer says
It is the c believe me I am trustworthy
what would happen if there was an issue during transcription
After a glucose molecule is made, what molecule(s) is/are left over?
Answer:
When one molecule of glucose is broken down, it can be converted to a net total of 36 or 38 molecules of ATP. This only occurs in the presence of oxygen.
class 10 bio notes of chapter our environment
Answer:
Explanation: The environment in totality is responsible for life on Earth. Class 10th Biology Our Environment notes tell that environment consists of both biotic and abiotic factors. While biotic factors refer to living things, abiotic factors refer to non-living things.
The diagram above shows the process of
natural selection. What is X?
A competition
B evolution
Cmimicry
D reproduction
Answer:
The answer is reproduction
Explanation:
because it need generation to keep on going with the cycle
Answer: D.) Reproduction
1.
The bud shown in the diagram below was produced by asexual reproduction. Which process is responsible for the formation of the bud?
2 Asexual reproduction differs from sexual reproduction in that, in asexual reproduction..
(a) new organisms are usually genetically identical to the parent
(b) the reproductive cycle involves the production of games
(c) nuclei of sex cells fuse to form a zygote
(d) offspring show much genetic variation
Answer: 1. Mitosis
2. Answer A.
Explanation:
Stick insects that reproduce asexually are less biologically diverse because they can't evolve as quickly as species that reproduce sexually can. Thus, option A is correct.
What is role of asexual reproduction in evolution?Asexual reproduction, in contrast to sexual reproduction, only contributes to genetic variety in the population if a chance mutation in the organism's DNA is passed on to the progeny.
Evolution can occur gradually. Asexual creatures often evolve relatively quickly following a dramatic mutation and do not need as many generations to accumulate adaptations as do populations that reproduce sexually.
Asexual reproduction has the benefit of allowing for rapid population growth under the right circumstances. You only require one parent. Since you don't require a partner, it is more time and energy efficient.
Therefore, new organisms are usually genetically identical to the parent.
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need help will give brainlist (don't know if a is correct)
Answer:
Definitely A. is correct. :D
Explanation:
A population of rabbits in an ecosystem has genetic variation in fur thickness. Some rabbits have thick fur and others have thin fur. Due to changes in the environment, the average temperature of the ecosystem is steadily increasing.
How will this environmental change likely affect the rabbit population over time?
A. Rabbits with thick fur will become more common in the population because thick fur will be a favorable trait in this changing environment.
B. Rabbits with thin fur will become more common in the population because these rabbits are more likely to survive and successfully reproduce.
C. Rabbits with thick fur and thin fur will become equally distributed because all rabbits in the population will successfully reproduce.
D. Rabbits with both fur types will increase in the population because the temperature change will cause the population of rabbits to expand.
Answer:
B
Explanation:
Thin fur is better for warmer weather, so the rabbits with thinner fur won't over heat in the warming weather.
The population of rabbits n the genetic ecosystem has thick fur and others have thin fur, due to the changes in the climate avg temperature of the ecosystem is steadily falling.
Looking at the situation and adaptive powers or abilities of the animals the thick fur will survive longer than those of the thin fur as the temperature of the place is declining.Hence the option A is correct.
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