When homologous chromosomes cross over in the process of meiosis, the corresponding segments of the non-sister chromatids are exchanged. Thus, the correct option is D.
What is Crossing over?
Meiosis is the process of cell division in which the chromosomal content of the cell reduces to half. This division is also known as reductional division. Meiosis is divided into two parts: Meiosis I and Meiosis II.
Meiosis I is divided into four phases which are Prophase I, Metaphase I, Anaphase I, and Telophase I. Prophase I is further divided into five stages which are Leptotene, Zygotene, Pachytene, Diplotene, and Diakinesis. Crossing over of chromosomes takes place during pachytene stage.
Crossing over or the chromosomal crossover is the exchange of the genetic material during the process of sexual reproduction between the two homologous chromosomes' non-sister chromatids which results into the formation of recombinant chromosomes.
Therefore, the correct option is D.
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Answer:
Explanation:
Advantages to community:
1. Geothermal energy is a renewable energy resource because heat extracted is very small compared to the Earth's heat content.
2. It is reliable and constant source of energy as it can extracted all through the year despite changing weather patterns.
3. Geothermal energy is widely available and it creates new job opportunity.
Disadvantages:
1. Cost of installation of geothermal heat pumps are high.
2. This power plants plants are suitable to particular region and they are far from cities.
Advantage to the environment:
1. It is echo friendly and non-polluting from production to use.
2. Geothermal plants occupy a less space, no-mining or no transportation is require and thus protects the natural environment.
3. There is no wastage or by -products.
Disadvantage:
1. This power plants may trigger earthquakes.
2. Power plant uses lot of water in its processes.
Which of these organisms are herbivores?
producer
primary consumer
decomposer
scavenger
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2) The rotational periods of four planets are listed in the table. Which of these planets has the SHORTEST day?
A) Earth
B) Jupiter
C) Saturn
D) Uranus
which of the statements accurately describes how water moves through earth and its atmosphere
Answer:
A. Liquid water falls from outer space and is absorbed or d*unk by living things. It then evaporates into the atmosphere and forms clouds, which float into space.
As soon as the rope breaks in picture 4, the car continues to roll forward on its own. This motion is BEST explained by which of the following laws? A. AN object in constant motion tends to remain in motion unless acted on by and unbalanced force. B. For every action there is an equal and opposite reaction/ C. An unbalanced force acting on an object will cause the object to accelerate. D. The force of gravity will cause an object to accelerate toward the earth at a constant rate.
The answer is A
Explanation:
due to the fact of the use of gravity
if temperature were available from several stations in canada near the great lakes do you think 15-degree line would form a closed loop?
Yes, a 15-degree line would form a closed loop for temperature obtained from several stations in Canada near the Great lakes.
What is temperature?Temperature refers to a measure of the degree of hotness or coldness of a physical body (object). Also, temperature is typically measured by using a thermometer and its units are:
Celsius (°C)Kelvin (K)Fahrenheit (°F)What is an isotherm?An isotherm can be defined as a line that is drawn on a map to join points with the same temperature, so as to show the distribution of temperature in a geographical region on Earth's surface.
In Meteorology, a closed loop is used to show or depict where an air mass is located when drawing isotherms. Thus, a 15-degree line would form a closed loop for temperature obtained from several stations in Canada near the Great lakes.
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Which of following has the least ecological tolerance to severe storms?
A very small island
A mainland coastal region
An inland area away from water
An island close to the mainland
What structures are present in plant and animals cells but not in bacterial cell
Answer:
organelles such as nuclei, mitochondria or chloroplast
Which virus is named after the organism it infected?
ICTV announced “severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)” as the name of the new virus on 11 February 2020. This name was chosen because the virus is genetically related to the coronavirus responsible for the SARS outbreak of 2003.
Answer:
Severe Acute Respiratory Syndrome coronavirus 2
Explanation:
(SARS-CoV-2) was announced by International Committee on Taxonomy of Viruses as the name of the new virus on 11/02/2020. The name was chosen because the virus is genetically related to the coronavirus responsible for the SARS outbreak of 2003.Although the two viruses are related, they are different.
Which statement describes the difference between ectothermic and endothermic animals?
Question 5 options:
Ectothermic animals live in cold climates, and endothermic animals live in warmer places.
Ectothermic animals live in the water, and endothermic animals live on the land.
Ectothermic animals have a lower body temperature than endothermic animals.
Ectothermic animals have a body temperature that is the same as their environment, and endothermic animals have a constant body temperature.
Answer:
Statement D
Explanation:
Ectothermic means cold-blooded, which means they can not generate there own heat or maintain a constant body temp.
But us as humans are Endothermic because we remain at a constant body temp, also known as warm-blooded.
4. What are the functions of leaves? (Select all that apply.)
release oxygen
perform photosynthesis
absorb nutrients
absorb carbon dioxide
Answer:
B. Perform photosynthesis
.....................
Answer:
perform photosynthesis
Explanation:
as i thing that brother thank you asking question
What information did you include in your response? Check all that apply.
Each person’s DNA is unique.
Scientists use variable regions in DNA to create a DNA profile.
DNA samples can be taken from blood, bone, hair, or other body tissues and
products.
DNA from a crime scene can be compared to DNA from a suspect.
DNA typing can be used to solve old cases.
Answer:
you didn't teach by teachers
What is the molarity of a solution that contains 800.26 grams of sodium nitrate, formula mass = 85.00 g/mol in 9.93 liters of the solution?
Answer:
0.948mol/litre
Explanation:
You find your moles(n)as=mass/molar mass
Then use Molarity=mole/volume to find the concentration
Guys, can you please be so generous to help me out
Answer:
Here you go. Sorry for taking so long.
Explanation:
Why does a bird reproduce more birds and not more mammals?
The map below shows the temperatures in parts of North America on an average spring day.
Which statement best summarizes the temperature pattern shown in the weather map?
A. temperatures increase from the southeast to the northwest.
B. Temperatures decrease from the northeast to the northwest.
C. Temperatures increase from the southwest to the northeast
D. Temperatures decrease the from the southwest to the northeast.
Answer: B
Explanation: You're Welcome
Answer:
B. Temperatures decrease from the northeast to the northwest.
Explanation:
Describe the nutrient cycle. How does soil contribute to this cycle?
Answer:
The nutrient cycle is a system where matter and energy are transferred between living organisms and non-living parts of the environment. This occurs as animals and plants consume nutrients found in the soil, and these nutrients are then released back into the environment via decease and spoilage
what word in a question do you look for to identify independent events in sequence
Answer:
A&BBB
Explanation:
What do mitochondrial and thylakoid membranes have in common?
O A. They are both involved in cellular respiration in animal cells.
O B. They both contain chloroplasts and chlorophyll.
O C. They are both places where ATP is produced.
O D. They are both the sites of glycolysis.
The relative abundance of species in an area is called
species evenness
species richness
clumped distribution
random distribution
Answer:
Species richness.
Explanation:
A common term, for organism populations.
Arterial Bleeding (bleeding from the artery) is dark maroon and is under less pressure
O True
O False
Rupert is studying two different cells. His professor asks him to determine which cell is a plant cell and which is a fungal cell. What could Rupert compare to distinguish between the plant cell and the fungal cell? A. the composition of their cell walls B. whether or not they contain a nucleus C. whether or not they contain organelles D. the composition of their cell membranes
what would happen if we put water on the moon
Answer:
Water poured into space (outside of a spacecraft) would rapidly vaporize or boil away. In space, where there is no air, there is no air pressure. As air pressure drops, the temperature needed to boil water becomes lower.
Name three multicellular/large protist producers in the aquatic communities
Answer:1 Protozoa 2Algae 3 Slime molds and Water molds
Explanation:
Protozoa is an animal like protists, Algae is a plant like protists, and slime molds and water molds are fungus like protistsprotistsprotists
What do you think the cardinal is trying to communicate with its song?
Answer:
I think the cardinal is trying to communicate courtship for the first and third song, while it is trying to communicate territorial with the second song.
Explanation:
hope it's help
Which personality test breaks down the personality into five traits and can be used by job recruiters to select candidates?
The big five personality test is personality test breaks down the personality into five traits and can be used by job recruiters to select candidates.
What is Big five personality model?The big five personality trait model is the test that access the individual characteristics and what job role is best suited for them.
personality test evaluates candidates across five personality traits like openness , agreeableness ,experience, conscientiousness, extraversion and also neuroticism.
Therefore, The big five personality test tralit is personality test breaks down the personality into five traits and can be used by job recruiters to select candidates.
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Which animal trait was Darwin’s theory of natural selection based on?
Camouflage or coloration is an animal trait that is based on Darwin's theory of natural selection.
What do you mean by Natural selection?Natural selection may be defined as the process through which populations of living organisms adapt and change. Natural selection leads to favorable variations among the organisms.
Coloration is the general appearance of an organism as determined by the quality and quantity of light that is reflected or emitted from its surfaces. These are determined by some dominant traits in organisms.
Therefore, Camouflage or coloration is an animal trait that is based on Darwin's theory of natural selection.
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ABO blood group determination is a example of
ABO blood group determination is a example of multiple Alleles.
What is Multiple Alleles?Multiple alleles refer to a type of non-Mendelian inheritance pattern that comprises of more than the normal two typical alleles that is dorminant and recessive alleles that usually code for a certain characteristic in a species.
Examples of multiple Alleles is the genes of ABO blood group determination.
Therefore, ABO blood group determination is a example of multiple Alleles.
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Synthesize What instruments would you take along if you were going on a 3-month field study to measure how the weather on a mountaintop changes over the course of a season?
The instruments which will be taken along include the following:
ThermometerPsychrometerAnemometerWind vaneBarometerRain gaugeWhat is an Instrument?This is defined as a tool or device for doing a particular kind of work such as weather study etc.
The instruments listed above will help measure how the weather on a mountaintop changes over the course of a season.
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how strong is a monkies grip
Answer:
Using the monkey grip on clothing, the lapel in particular, the monkey grip is stronger and allows a greater lifting ability. But use of the thumb in the lapel during a throw risks trapping the thumb in the clothing and loss of control. Of course, the thumb is the weakest part of the grip.
Explanation: