For selective breeding to be successful, a desired trait must:
Answers
Be heritable. Major crops are typically the product of specialists; amateurs and professionals can both breeding flowers, vegetables, and fruit trees.
Selective breeding, often known as artificial selection, is a method used by humans to selectively create specific phenotypic traits (characteristics) in animals and plants by deciding which male and female animals or plants will reproduce sexually and generate offspring together. While domesticated plants are recognised as variations, cultivars, or breeds, domesticated animals are known as breeds and are typically bred by a professional breeder. A crossbreed is created when two purebred animals of different breeds mate, while hybrids are the name given to crossbred plants.
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Related Questions
During meiosis I, how could you have arranged the chromosomes in a different way? How do the differences affect the end result of meiosis??
Answers
Explanation:
Meiosis is the formation of reproductive cells, like the egg in the fallopian tube; if not fertilized by sperm, it is expelled by the menstrual cycle.
Some conditions during fertilization can be disrupted by an egg attaching to the fallopian tube instead of the uterus causing an ectopic pregnancy. Arranging chromosomes in a different way causes congenital defects like color blindness, crohn's disease down's syndrome, etc.
Adapting to Life at Sea: Take a look at this article from Natural History Magazine. Explain the connection between sea snake's diet, the way in which they eliminate nitrogenous waste, and their need for freshwater. Then explain why this makes life (in at least one way) difficult for them in the ocean.
Answers
Answer:
They needs fresh water for drinking purpose.
Explanation:
The Sea snakes favorite food is fish and crustaceans. These sea snakes removes nitrogenous waste in the form of ammonia. They can live in salty water but needs fresh water for drinking purpose. This makes life difficult for sea snakes in the ocean because sea snakes needs fresh water to become hydrated and the sea water is salty which they can't drink so they depends on the rainfall for drinking purpose.
The sea snakes excrete their nitrogenous wastes via cloaca and some of it from the skin.
Sea snake
The snake excretes solid as well as liquid wastes from the cloaca but sometimes the flow of excreta gets disturbed due to change in the osmolarity between the environment and the body. The oceanic water is saline which is responsible for changing the osmolarity.This is making their survival difficult in the ocean.
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what might be a symptom of a person whose vein valves are not functioning properly and causing fluid to flow away from the heart?
Answers
Answer:I can I get brain ly ess
Explanation:
Valvular regurgitation may be also called “leaky valve.” It occurs when any of the heart valves doesn't close properly, causing blood to flow backward. The symptoms can include: shortness of breath. a cough.
Which cell type in Human lacks a nucleus? What function would this cell be unable to carry out?
Answers
Answer:
Red Blood Cell lacks a nucleus, it would be unable to carry oxygen efficiently.
Explanation:
The absence of a nucleus is an adaptation of the red blood cell for its role. This allows the red blood cell to contain more hemoglobin and, therefore, carry more oxygen molecules. It also allows the cell to have its own distinctive bivalve shape, which promotes diffusion.
In human cells, the nucleus is made up of DNA, which serves as genetic material. DNA is made up of genes that control various metabolic functions in cells.
However, some cells do not have a nucleus.
RBCs are the cells in the human body that lack a nucleus.
The nucleus is missing in RBC because it must transport large hemoglobin molecules, which then transport oxygen molecules. and increasing our metabolism.
What is RBC?RBC is also known as erythrocytes.These cells serve as carriers. They lack a nucleus and use that space to hold other things because they must carry other important bio-molecules required by other cells.RBCs, or red blood cells, transport oxygen from the lungs to all other parts of the body. Because they lack any cell organelle, including the nucleus, they have a biconcave shape. As a result, they only live for a few days and are replaced every day.Thus, we can conclude that RBC does not contain a nucleus because it transports hemoglobin.
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radiation workers should always reduce radiation doses by following the
A) ALARA principle
B) the lease dose principle
C) the no dose-image gently formula
D) the principle of radiation doses
Answers
ALARA principle. The ALARA principle stands for "as low as reasonably achievable," which means that radiation workers should take all necessary steps to minimize their exposure to radiation and keep it as low as reasonably achievable.
This principle is the cornerstone of radiation safety and applies to all aspects of radiation protection, including the use of protective equipment, safe work practices, and minimizing the time spent in radiation areas. The lease dose principle is not a recognized principle in radiation safety, and the other two options are not relevant to the question.
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if a red blood cell in the same person has intracellular fluid with 140mm k , 8mm na , and 90mm cl- and permeabilities of 100, 50, and 20, respectively, how different are the resting membrane potentials of the neuron and the blood cell?
Answers
The resting membrane potential of neurons are -5mv whereas in blood cells it is - 95mv. Resting membrane potential is not unique to neurons, but it is a property essential for all animal cells.
Neurons are the unit of nervous system. They are also known as building block of the brain and 80% of the total brain cells are made up of neurons.
Neurons are responsible for transmitting signals to the brain and all parts of our body. They have a resting membrane potential that is maintained by some ion pumps such as sodium- potassium pump.
The membrane potential can be explained as the difference in voltage between inside and outside of cell. The sodium pump maintains the ions entering the cells and potassium pump maintains the ions leaving the cell.
Neurons are important for various reasons such as- memory, cognitive function, response and learning. They are also important for actions and thoughts. They exhibit electrical excitable cells in the nervous system.
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Disruptive selection for a polygenic trait results in two overlapping phenotypes. Theoretically, disruptive selection could lead to two new species forming.
● How might this happen? Can you describe how it could occur?
● How else might one species diverge into two?
Answers
Two overlapping phenotypes are produced by disruptive selection for a polygenic trait, and theoretically, disruptive selection might result in the emergence of two new species.
Both sympatric and allopatric speciation are potential outcomes here. When a population is geographically isolated, sometimes as a result of natural obstacles like rivers or mountains, allopatric speciation happens.
Geographic isolation restricts gene flow between the two populations, which can cause genetic drift and natural selection to result in the emergence of two separate species. When two species evolve from a single ancestral species while coexisting in the same region, it is known as sympatric speciation.
Disruptive selection, which favours two different phenotypes, may be to blame for this. The original population therefore divides into two separate species with differing characteristics.
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It is commonly believed that the mean body temperature of a healthy adult is 98.6∘F. You are not entirely convinced. You believe that it is not 98.6∘F. You collected data using 54 healthy people and found that they had a mean body temperature of 98.26∘F with a standard deviation of 1.16∘F. Use a 0.05 significance level to test the claim that the mean body temperature of a healthy adult is not 98.6∘F. a) Identify the null and alternative hypotheses? H0: ?
H1: ? b) What type of hypothesis test should you conduct (left-, right-, or two-tailed)? i. left-tailed ii. right-tailed
iii. two-tailed c) Identify the appropriate significance level. d) Calculate your test statistic. Write the result below, and be sure to round your final answer to two decimal places. e) Calculate your p-value. Write the result below, and be sure to round your final answer to four decimal places. f) Do you reject the null hypothesis? 1. We reject the null hypothesis, since the p-value is less than the significance level.
2. We reject the null hypothesis, since the p-value is not less than the significance level. 3. We fail to reject the null hypothesis, since the p-value is less than the significance level. 4. We fail to reject the null hypothesis, since the p-value is not less than the significance level. g) Select the statement below that best represents the conclusion that can be made. 1. There is sufficient evidence to warrant rejection of the claim that the mean body temperature of a healthy adult is not 98.6∘F. 2. There is not sufficient evidence to warrant rejection of the claim that the mean body temperature of a healthy adult is not 98.6∘F. 3. The sample data support the claim that the mean body temperature of a healthy adult is not 98.6∘F.
4. There is not sufficient sample evidence to support the claim that the mean body temperature of a healthy adult is not 98.6∘F.
Answers
The conclusion of the hypothesis test regarding the mean body temperature of a healthy adult is sufficient evidence to warrant rejection of the claim that the mean body temperature of a healthy adult is not 98.6∘F.
What is the conclusion of the hypothesis test regarding the mean body temperature of a healthy adult?a) Null Hypothesis (H0): The mean body temperature of a healthy adult is 98.6∘F.
Alternative Hypothesis (H1): The mean body temperature of a healthy adult is not 98.6∘F.
b) The hypothesis test should be two-tailed.
c) The appropriate significance level is 0.05.
d) The test statistic is calculated using the formula: (sample mean - hypothesized mean) / (sample standard deviation / sqrt(sample size)). The result is -5.86.
e) The p-value is calculated by finding the probability of obtaining a test statistic as extreme or more extreme than the observed value under the null hypothesis. The p-value is 0.0000.
f) We reject the null hypothesis, since the p-value is less than the significance level.
g) The phrase "There is sufficient evidence to warrant rejection of the claim that the mean body temperature of a healthy adult is not 98.6F" best summarises the finding.
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In part of the model, materials move out of the bag and into the water. which
of the following cell processes does this best model?
a. substances move from an area of low concentration to an area of
high concentration.
b. small molecules easily pass between the phospholipids in the cell
membrane.
c. transport proteins use energy to push large molecules across the
cell membrane.
o d. a vacuole opens to release substances into the area outside the
cell.
previous
Answers
Answer:
small molecules easily pass through the phospholipids in the cell membrane
Although heredity lays down the __________ of who we are, environment helps build who we will become. A. Building B. Stability C. Foundation D. Nature Please select the best answer from the choices provided A B C D.
Answers
Answer:
Foundation
Explanation:
Answer:C
Explanation: Right one on my course :D
What is increased in atmosphere due to destruction of the forest?
Answers
When forests are cut down or burned, carbon dioxide, which is primarily the form of stored carbon, is released into the atmosphere.
Carbon dioxide is absorbed and stored by trees. When forests are cut down or even just disturbed, carbon dioxide and other greenhouse gases are released. Around 10% of global warming is caused by the destruction and loss of forests.
If we don't put an end to deforestation, there is just no way that we can combat the climate issue. 15% of all greenhouse gas emissions are attributable to deforestation and forest degradation. These greenhouse gas emissions are a factor in global warming, altered weather and water patterns, and a rise in the frequency of extreme weather occurrences. In general, deforestation results in a drier environment because it raises temperatures and alters the amount and distribution of rainfall.
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The reactants in the dark reaction are:_____,______, and _____
Answers
Answer: In the dark reaction, plants use carbon dioxide with ATP and NADPH from the light reactions to produce glucose. hope it helps <3
Plants use carbon dioxide with ATP and NADPH from the light reactions to produce glucose in the dark reaction.
What is Dark reaction?Dark reaction also called carbon-fixing reaction which is a light-independent process in which sugar molecules are formed from carbon dioxide and water molecules. This occurs in the stroma of the chloroplast, where they use up the products of the light reaction.
Dark reaction is a light-independent process in which sugar molecules are formed from carbon dioxide and water molecules. This reaction occurs in the stroma where it utilizes the products of the light reaction. Since this is not directly dependent on light, it is called as the dark reaction.
The reactants in the dark reaction are NADPH, ATP and Carbon dioxide.
Thus, plants use carbon dioxide with ATP and NADPH from the light reactions to produce glucose in the dark reaction.
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Explore which of these is an explanation slash prediction of what you think will happen during an investigation? A variable B hypothesis C fair test D control
Answers
Answer:
B. Hypothesis
Explanation:
Hypothesis is an explanation about a phenomenon that is proposed. This explanation is further subject to a test to make a scientific hypothesis.
scientific hypotheses is usually based on previous observations that is not satisfactorily explained with available scientific theories but need further clarifications.
After an hypothesis is formulates it is then subjected to test to ascertain if the hypothesis will be accepted or rejected. When rejected further investigation can be carried out to be sure of the outcome.
A cell membrane is very specific about what it allows across. How does this
help the cell?
OA. Transport proteins allow only enzymes to pass through the
membrane.
B. The cell works better when it contains fewer proteins.
C. It helps the cell absorb as many different molecules as possible.
OD. It is better for the cell if most molecules are prevented from
entering.
SUBMIT
Answers
Answer:
OA
Explanation:
because it's selectively permeable
What scenario is an example of a physical change?
A. Wood is burned in a campfire and is turned into ash
B.a piece of metal is left in the rain and form dust
C. Lead is melted into liquid to form dust
D. Yeast turns sugar into energy,water, and carbon dioxide
Answers
Answer:
C is then answer.
Explanation:
Answer is C
I know because I'm smart
The rugosity of a coral reef results in increased water turbulence relative to adjacent sandy benthos
Answers
The rugosity of a coral reef results in increased water turbulence relative to adjacent sandy benthos True
What is coral reef?An underwater environment known as a coral reef is characterized by corals that construct reefs. Coral polyp colonies are bound together by calcium carbonate to build reefs. Stony corals, whose polyps gather together, make up the majority of coral reefs.
Sea anemones and jellyfish are members of the animal phylum Cnidaria, and coral is a member of the class Anthozoa. Contrary to sea anemones, corals develop tough carbonate exoskeletons that serve as the coral's support and defense. The majority of reefs thrive in warm, shallow, clear, bright, and turbulent water. At the beginning of the Early Ordovician, 485 million years ago, b first emerged, replacing the microbial and sponge reefs of the Cambrian.
Shallow coral reefs make up some of the planet's most diversified ecosystems and are sometimes referred to as underwater rainforests.
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Somebody help me so I can give y’all some points
Answers
b. structure in the nucleus formed from DNA wrapped around proteins.
c. adaptation
d. all living things are made of cells
Study of living things- A
All living things are made of cells- D
Structure in the nucleus formed from DNA wrapped around proteins- B
think of an object person or place at home that functions similar to the cytoplasm
Answers
Answer:
The cytoplasm is like a jello salad because the cytoplasm surrounds and suspends the cell's organelles like the jello surrounds and suspends the fruit in the jello salad.
Explanation:
1. What pressure will be exerted by 0.40 mol of gas in a 3.0 L container at 27.0°C.
How many moles of gas are in a 30 L scuba canister if the temperature of the canister is 330K and the pressure is 200 atm?
I have a balloon that can hold 100 L of air. If I blow up this balloon with 3 moles of oxygen gas at a pressure of 1 atmosphere, what is the temperature of the balloon?
A sample with 0.65 mol of gas is at 105.7 KPa and 270C. What volume does it occupy?
What is the volume that 500 g of Iodine will occupy under the conditions of 750C and Pressure of 740mmHg.
Calculate the molar mass of butane gas, if 5.8 g occupy 0.8 L at 27.0 °C and 3 atm pressure.
A 32.0L flask at 400K and 2.6 atm contains Cl2. What mass is present in grams?
Answers
Answer:
that's the answer sorry for not being able to complete it
.. Do animal and plant organisms have the same life processes?
Answers
How does hydrologic cycle depend on carbon,nitrogen,and phosphorus cycle
Answers
Explanation:
These biogeochemical cycles are important to the environment because this is how each respective chemical moves through the environment. Disrupting these cycles will impact organisms across the planet in multiple ways, as we rely on these cycles for our survival.
(To review each cycle, see these links: phosphorous cycle, nitrogen cycle, and the carbon cycle.)
Every living organism is made up of carbon, nitrogen, and phosphates. Nitrogen and carbon are found in amino acids which make up proteins. Phosphates make up DNA and ATP. Thus, the availability of these elements is of great importance to the existence of living things.
Human activities, such as the burning of fossil fuels, change the distribution of carbon throughout the cycle. The increased amount of carbon dioxide in the atmosphere is causing the planet to warm. The carbon cycle and the amount of carbon found in the atmosphere, the earth, and the oceans has acted as a sort of control for the longterm stability of temperatures across the planet.
food quality is solely dependent on the nutritional value of food.T/F
Answers
False. Food quality is not solely dependent on the nutritional value of food. Nutritional value is an important aspect of food quality, as it provides the necessary nutrients for the body to function properly.
However, other factors such as taste, texture, appearance, and safety also contribute to food quality. Food that is safe to consume, looks and tastes good and has a desirable texture is considered to have high food quality . Additionally, food nutritional value can have cultural and emotional value that also contribute to the overall perception of its quality. Therefore, food quality is a multi-faceted concept that encompasses not only nutritional value but also other aspects of food that are important for consumer satisfaction and well-being.
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Please Help me word the answer to this problem?A pet store has two guinea pigs. One has white fur and one has black fur. The white guinea pig has two recessive alleles for fur color (bb). The black guinea pig has one dominant allele (B) and one recessive allele (b) for fur color. What will most likely be the phenotypes of the offspring in a cross between the two guinea pigs?Explain your answer
Answers
There is a 50% chance that the offspring of guinea pigs will have white fur or black fur phenotype. In the latter case, the genotype will be heterozygous. This character will be determined by the heterozygous parent as it is the one with different alleles, the white fur guinea pig will always always transmit the recessive allele b to its offspring.
Malaria is an infectious disease transmitted to humans from a parasite that infects mosquitoes that feed on humans. World health officials have concerns that climate change may impact the transmission of malaria into tropical highland areas in Africa. If these concerns turn out to be valid, they would imply that global climate change ________.
Answers
Answer:
It influences of the distribution of the species.
Explanation:
As malaria is the infection that are caused by spreading to the humans by a worm that infiltrates mosquitoes that feeds on people.According to the World health authorities are worried that changing climate could have an effect on malaria transmission to coastal highland parts of Africa.
The changing in the climate will directly influences the distribution of the species. This influence will spreading the virus fastly in the areas of the south Africa.People will take people precaution and takecare when the climate is changed .
100 Points Pls Help Me Will Give brainliest And 5 starr
Short Answer
Answer each question in the space provided.
31. Briefly describe how igneous rocks form. How do both of the two main subcategories form?
32. Briefly describe how sedimentary rocks form. How do both of the two main subcategories form?
33. Briefly describe how metamorphic rocks form. How do both of the two main subcategories form?
Answers
Answer: 31, Igneous rocks are formed from lava or magma. Magma is molten rock that is underground and lava is molten rock that erupts out on the surface. The two main types of igneous rocks are plutonic rocks and volcanic rocks. Plutonic rocks are formed when magma cools and solidifies underground
32, Sedimentary rocks can be organized into two categories. The first is detrital rock, which comes from the erosion and accumulation of rock fragments, sediment, or other materials—categorized in total as detritus, or debris. The other is chemical rock, produced from the dissolution and precipitation of minerals
33, Rocks are formed on Earth as igneous, sedimentary, or metamorphic rocks. metamorphic rocks form from heat and pressure changing the original or parent rock into a completely new rock.
Which graph represents selection that may lead to reduced variation
in a population?
Answers
The frequency graph represents selection that may lead to reduced variation in a population.
What is a biological catalyst
Answers
Answer: Enzymes
Explanation:
A catalyst is a substance that causes the rate of a chemical reaction to increase without undergoing any permanent change.
In the case of biology a biological catalyst would refer to enzymes.
Enzymes are most often protein in nature and catalyze numerous biological reactions.
Is the amount of water on our planet is the same today as it was 5,000 years ago.
Answers
Answer:
Yes
Explanation:
Matter is not created nor destroyed (it never disappears) EVER. Therefore, the answer to your question is YES. :3
Select the two correct answers to test your understanding of the primary goals of antimicrobial treatment. a)To destroy the infective agent b)To kill malignant cells c)To be nontoxic to the host and produce no side-effects d)To identify the cause of infection e)To alter the normal microbiota of the patient
Answers
Antimicrobial treatment is one of the significant types of therapy that refers to the medication intended to inhibit or eradicate the infection-causing microorganisms. Generally, there are some primary goals of antimicrobial treatment that are discussed below:
Primary goals of antimicrobial treatment: To destroy the infective agent: One of the primary goals of antimicrobial treatment is to destroy the infective agent. This can be achieved through the use of certain medications that can work by inhibiting the growth of infectious agents. The selection of drugs should be such that it effectively targets the specific type of microorganism that is causing the infection. However, in some cases, the combination of drugs might be required for an efficient cure. To be nontoxic to the host and produce no side-effects: Another goal of antimicrobial treatment is that it should be nontoxic to the host and produce no side-effects. Antimicrobial medications are prescribed in a dose that can effectively work on the infected cells without causing any harm to the host. Therefore, doctors should carefully consider the patient's health status, age, and any previous drug reactions before selecting an appropriate antimicrobial agent that is non-toxic to the host. Furthermore, the potential side effects of antimicrobial medications should also be taken into account.
This can be achieved by analyzing the signs and symptoms of the infection and conducting the necessary diagnostic tests. Once the cause of the infection is identified, the appropriate antimicrobial agent can be selected. To kill malignant cells: Antimicrobial treatment is not aimed at killing malignant cells.
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a reduced ability to generate tension due to recent exertion of force is known as muscle
Answers
A reduced ability to generate tension due to recent exertion of force is known as muscle Muscle fatigue .
It is caused by the depletion of resources within muscles, such as glycogen, ATP, and creatine phosphate, as well as the accumulation of metabolic by-products such as lactic acid. It can occur during a single muscle contraction, over the course of a repetitive activity, or after a period of sustained activity.
Symptoms of muscle fatigue include a decrease in the speed and power of the muscle, a decrease in the range of motion, a decrease in the ability to maintain a given posture, and an increase in the difficulty of exerting force. Muscle fatigue can be managed through proper rest and recovery, as well as proper nutrition and hydration.
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