Answer:
In artificial selection, humans have the capacity to influence certain characteristics of organisms by selective breeding. One can choose desired parental traits determined by genes, which are then passed on to offspring.
Explanation: I hope I could help
__________ refers to the number of organisms per unit of an area.
A)
Genetic diversity
B)
Population density
C)
Population pyramid
D)
Population distribution
E)
Genetic variation
Answer:
B
Explanation:
Population Density.
Answer:
Population Density
Explanation:
The polled (hornless) condition (P) is dominant over horned (p). A certain polled bull is crossed to 3 cows.
1. With cow A, which is horned, a polled cow is produced;
2. With cow B, also horned, a horned cow is produced;
3. with cow C, with is polled, horned cow is produced.
What are the genotypes of the three calves and the four parents?
Answer and Explanation:
Due to technical problems, you will find the complete answer and explanation in the attached files
For a particular plant, red flowers (A) are dominant over yellow flowers (a). An initial cross was made between a plant that was true-breeding for red flowers and another plant true-breeding for yellow flowers. F1 progeny, all having red flowers, were allowed to self- pollinate and form seeds, which were then planted to generate F2 progeny. Pollen from all the resulting F2 plants was pooled and used to fertilize true-breeding yellow plants. What proportion of the progeny resulting from this cross would be expected to have yellow flowers
Answer:
The correct answer would be - 1 out of 4 or 25% offspring would be expected to have yellow flowers
Explanation:
Red flowers are dominant over the yellow flower, initially, a cross was made between true-breeding red and true-breeding of yellow flowers
Red flower plant gametes, a and a and red plants gamete would be A and A.
so,
A A
a Aa Aa
a Aa Aa
in this cross, all the offspring are red as they have a heterozygous genotype. Now self-pollinating these F1 generation offsprings, gametes would be A and a for both parents:
A a
A AA Aa
a Aa aa
in the f2 generation, there is only 25% of offsprings are yellow flowers.
How might a sudden cold front limit population growth of newborn offspring?"" HELP PLEASE
Answer:
The correct answer is - they may not be able to survive at such a temperature.
Explanation:
A Cold front is a weather change when a cooler air mass moves into warmer air that leads to a sudden drop in temperature following by the cyclone, heavy rainfall and hail.
These sudden changes and heavy rain with storms and cyclones can limit the population growth of newborn offspring as they may not able to survive in such a sudden temperature drop.
What is the role of DNA polymerase in DNA Replication?
A.reads one strand of DNA and creates another strand
b.bind sugars to phosphates in the backbone
C.unwind and unzip the DNA
D.repair errors
Answer:
A.
Explanation:
reads one strand of DNA and creates another strand
Briefly describe the purpose of conjugation in paramecia.
The fingers are_____to the wrist
The respiratory rate times the tidal volume corrected for the dead air space in the lungs is the __________.
a. vital capacity
b. respiratory minute volume
c. pulmonary ventilation rate
d. alveolar ventilation rate
e. external respiration rate
Answer:
d. alveolar ventilation rate
Explanation:
Alveolar Ventilation rate (AVR) refers to the rate of airflow that reaches the alveoli which is available for gas exchange with the blood in a given unit of time. AVR is generally calculated as the amount in millimeters of air expired that equilibrates (i.e., exchanges) with alveolar gas per min unit (ml/min). AVR is affected by breathing frequency, tidal volume ( i.e., the normal amount of air between inhalation and exhalation), and the amount of dead space in the lungs.
Why are protists discussed in groups like animal, plant, fungus
1.Paramecium was found to occupy 20% of the FOV of a microscope at 40X magnification power. How many paramecium can be accommodated within this FOV
Answer:
Five (5)
Explanation:
A total of five (5) paramecia can be accommodated within the FOV.
The field of view of a microscope represents the area of the visible region under the ocular/eyepiece at a specific magnification. In other words, the diameter of the circular area visible through the ocular of the microscope at a specific magnification represents the field of view.
If a paramecium was found to occupy 20% of the total field of view of a microscope at X40 magnification, then the total number of paramecia that can be accommodated within the field would be:
100/20 = 5 paramecia
The number of many paramecium can be accommodated within this FOV
is Five (5)
Given that,
Paramecium was found to occupy 20% of the FOV of a microscope at 40X magnification power.Based on the above information, the calculation is as follows:
[tex]= 100\div 20[/tex]
= 5
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1. Robin carries the trash from the house to the garbage can outside. Which statement best describes the science of what he did?
He would use less energy if he were to move the garbage faster
He used energy to carry the garbage.
He did not have to work because garbage is light.
He caused the garbage to have potential energy when it moved.
Answer:
He used energy to carry the garbage.
Explanation:
Energy is the ability to do work. When work is done, energy is expended during the process. Work is done if the force applied on an object moves that object through a distance.
In the case where Robin carries the trash from the house to the garbage can outside, work is done because, the force applied by Robin on the trash effectively helps to move the trash from inside the house to the garbage can outside the house. During the process of moving the trash, Robin expends or uses energy to do the work.
From the given options:
He would use less energy if he were to move the garbage faster is wrong because an increase in speed results in an increase in energy
He used energy to carry the garbage is correct because energy is the ability to do work
He did not have to work because garbage is light is wrong because as long as an object is moved a distance, work is done irrespective of the mass of the object.
He caused the garbage to have potential energy when it moved can only be true if he had raised the garbage from the floor to a height above the ground. However, he only moved it fro inside to outside the house.
a gene carries the __ for a trait
Why can't blizzards cause secondary succession?
If I had to guess I would say because blizzards happen in the winter and things don't grow in the winter, therefore secondary succession cannot happen as recolonization with plants cannot happen because most plants don't grow in the winter.
Last semester I learned about succession so I'm basing my answer on the stuff I learned.
Hope this helps! :)
Eliza wants to increase the yield of her herb garden A friend suggests that Eliza pinch off the tops of the plants as they grow
Apical Meristem
(Shoot)
Axillary Merister
-Apical Meristem (Root)
Which fact about the apical meristem makes this a good suggestion?
SC 912 L.14.7
O Enzymes in the apical meristem carry out DNA replication
O Photosynthesis takes place in the chloroplasts of green plant cells
Auxins produced in the apical meristem inhibit the growth of lateral buds
O The apical meristem uses adenosine triphosphate (ATP) as its energy source
Answer: I think it is C, auxins produced in the apical meristem inhibit growth of lateral buds
Explanation: I’m taking the test
Answer:
C
Explanation:
What is the role of carbon storage in organisms?? Plz answer fast in paragraph form if possible
Biological carbon storage happens when the carbon is stored in natural environment in animals and plants. This process includes what are known as carbon sinks, such as forests, grasslands, oceans, and other bodies of water.
What is Carbon storage?Carbon capture and storage is an attempt to remove the carbon dioxide gas from atmosphere after burning gas, oil, coal, or biomass before it actually enters the atmosphere, and to store it in the environment in various forms. Carbon storage has a success rate of between 50% to 68% of captured carbon, while aspirations of a 90% or 100% capture rate have not been achieved properly.
Carbon storage is carbon which is not emitted into the atmosphere. Less amount of carbon in the atmosphere will reduce the greenhouse gas effect and thus also lessens the impact of climate change and global warming.
Learn more about Carbon storage here:
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Through which of the following processes are plant communities taking over the ecosystem
Answer:
Climate disturbance
Explanation:
Which statement correctly describes the monomer of proteins?
They are a major component of cell membranes.
They help with the regulation of blood glucose.
They are used to store genetic information.
They are made up of several different amino acids.
Answer:they are made up of several different amino acids
Explanation:
What are the conditions necessary for an annular solar eclipse?
A. Moon in perigee orbit; Moon moves a direct line between Sun and Earth; Moon in full moon phase.
B. Moon in perigee orbit; Moon moves a direct line between Sun and Earth; Moon in new moon phase.
C. Moon in apogee orbit; Moon moves a direct line between Sun and Earth; Moon in new moon phase.
D. Moon in perigee orbit; Earth a direct line between Sun and Moon; Moon in full moon phase.
Answer:
B
Explanation:
An annular eclipse occurs when the Sun and Moon are exactly in line with the Earth, but the apparent size of the Moon is smaller than that of the Sun. Hence the Sun appears as a very bright ring, or annulus, surrounding the dark disk of the Moon.
Answer:
B
Explanation:
1. word that means produced by a living thing
2. a word that means NOT produced by a living thing
Which of the following changes in an ecosystem is most likely to result in a
species moving toward one of the poles?
A. An increase in its predator numbers
B. Climate cooling
O C. The intrusion of an invasive species
O D. Climate warming
Answer:
Climate warming
Explanation:
Answer:
The answer is D-Climate Warming
Explanation:
Once an area gets to a point of extreme warmth where the species genuinely can't handle it anymore, they'll migrate closer to the poles.
Winds transfer energy in the atmosphere by the process of _________.
conduction
convection
radiation
precipitation
a human cell has ____ chromosomes
a. 4
b. 23
c. 101
d. 46
Answer:
23
Explanation:
i learned it in bio last year so hopefully i remembered it correctly :)
I. Tick he correct answer.
1. Linen is obtained from.
a. Jute plant b. cotton plant c. flax plant d. hemp plant
Answer:
c. Flax plant is the answer
A punch is painful, while a hug is not, because a punch produces _______ action potentials from each sensory neuron. A) stronger B) more frequent C) faster-moving D) fewer
Answer:
B) more frequent
Explanation:
This occurs because a punch produces more frequent action potentials from each sensory neuron. This is only caused when there are rapid and sudden changes. A punch is fast and causes very sudden changes when the punch comes into contact with the human body. This therefore, causes these fast and sudden changes which fire very frequently from each sensory neuron. A hug is soft and does not affect the human body in such a sudden way so it does not cause frequent action potentials.
Which is one factor that increases the speed of a sound wave?
O higher temperature
O lower temperature
O traveling in a liquid rather than a solid
O traveling in a gas rather than a liquid
Answer:
A
Explanation:
Cells in Eukarya and in Archaea all have genomic DNA that is wrapped around proteins called
histones.
True
False
Answer:
True
Explanation:
Some histones function as spools for the thread-like DNA to wrap around.
Brainliest Please if right
Imagine that you are standing in a field and you see a group of butterflies. You notice an individual butterfly that looks significantly different from the others in the population. Its difference allows the butterfly to escape predation more efficiently than the other butterflies. How might this trait have arisen in the individual
Answer:
Explanation:
Mutation is a sudden change in the genome of an organism that is heritable.
Mutation occur due to a spontaneous change in the sequence of a gene, it can occur during DNA (deoxyribonucliec acid) replication, mitosis, meiosis. Some mutation are beneficial, some are detrimental while some could be deleterious. Mutation is a rare occurrence usually one in several hundreds or thousand
The unique traits that was reveal in the bird is due to mutation, it is beneficial because it kept it away from predation it is a rare case.
about minority intelligence levels may create feelings of vulnerability, which then undermine IQ
performance.
A. Stereotypes
B. Cultural bias
C. Socioeconomic issues
D. Inherited traits
It’s A
Answer: Stereotype
Explanation:
Stereotype is simply the expectation, belief or assumption witth regards to a certain group of people.
We should note that the stereotype about minority intelligence levels may bring about feelings of vulnerability, which then undermine the performance of ones intelligent qoutient.
Answer: A
Explanation:
What is phagocytosis in regard to the immune system of humans?
Answer:
Phagocytosis is the process of introducing larger particles into a larger cell. The process takes place by twisting the cell membrane of the "host" and enveloping the particles with a phagocytic bubble. Leukocytes use phagocytosis to take in and incapacitate bacteria that enter our body, so phagocytosis plays an important role in the immune system, as it prevents harmful cells from affecting humans.
Answer:
the process by which neutrophils ingest a bacterium
Explanation:
Neutrophils ingest bacteria via a process known as phagocytosis, or "cell eating." (also, I took the quiz)
What happened to the Galapagos Finches?
POPULATION SIZE OF FINCHES FROM 1975-1978
- Population Size
1600
1450
1400
-1400
1200
1227
1175
1000
866
800
600
637
400
15
261
200
199
0
01/75 05/75 09/75 01/76 05/76 09/76 01/77 05/77 09/77 01/78 05/78 09/78
Observation: Population Size
Using the above graph of the finch population of Galapagos Island, Daphne Major, analyze
and collect the requested information (complete sentences):
1. Provide quantitative and qualitative data as for an instance of positive population
growth. Include population values and time periods (2 points).
mo
Answer:
Unavailability of food decrease their population.
Explanation:
The population of Galapagos Finches decreases because of unavailability of food. Galapagos Finches feeds on a specific insects whose population decreases on that Island that leads to the death of the Galapagos Finches and they decrease in number. Positive population growth occurs only if more food is available to the Finches or they adapt another food item for themselves which fulfill their need of food.