what will happen if nondisjunction wee to take place at anaphase 2
Earth's magnetic poles reverse approximately every _____ years?
O A. billion
B. 22
C. 10 million
D. 250,000
Answer:
D. 250,000 years
Explanation:
It's really 200,000 to 300,000 years, but 250,000 years is right in the middle, so it must be 250,000 years.
Hope this helps you! Good luck with your exam/quiz! <3
Answer:
D) 250,000 yrs.
Explanation:
Earth's magnetic poles reverse approximately every 250,000 years.
Which layer of the earth is described as "plastic", allowing plates on the
crust to move?
A. oceanic crust
B. asthenosphere
D. lithosphere
C. core
Answer:
A. oceanic crustExplanation:
The asthenosphere is plastic is made of oceanic crust. The lithosphere is plastic and is made of the upper part of the mantle. ... These plates are large portions of lithosphere that move slowly over the more fluid, underlying material in the region below the crust.
Hi" I hope it's help you"
Answer:
B asthenosphere
Explanation:
the answer is asthenosphere!!
Particles of gas is widely seperated
True
False
Answer and I will give you brainiliest
I think
Explanation:
true is right ans
Answer:
True
Explanation:
The diagram compares diffusion of sugar molecules and osmosis. Explain the difference between osmosis and diffusion in cells
Answer:
What is the difference between osmosis and diffusion? Osmosis is the movement of water molecules through the cell. Diffusion is the movement of molecules, such as oxygen, in and out of a cell. The process by which water molecules are able to diffuse through the cell membrane.
Explanation:
Diffusion and osmosis involves the movement of materials from one region another. The main difference between osmosis and diffusion is that osmosis requires a semi permeable membrane.
The movement of materials always occur in cells. This movement could occur by;
Active transportOsmosisdiffusionThe difference between osmosis and diffusion is that, diffusion does not involve a semi permeable membrane.
A semi permeable membrane is a membrane that is selectively permeable to materials. It allows some materials to pass and does not allow other materials to pass. We can see the semi permeable membrane as the structure in the osmosis diagram that separates the two regions.
Diffusion does not require the use of a semi permeable membrane.
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(50 POINTS) Which of the following could be alive because it displays one of the signs of life? An object that _____.
A. has branches
B. does not move when touched
C. moves away from loud noises
D. makes noise
Answer:
A.
Explanation:
An object with branches
The unit discusses the problems with deforestation. What other problems could the extreme environmental damage caused by the kind of mining done in the Appalachians create?
I'm not sure if anyone can help me with this one, but if you can that'd be great! I have to write in the answer but I'm just looking for an idea. Thank you!
Answer:
Mining in the Appalachians has caused debris and harmful chemicals to land in the local waterways. The large amount of waste and dirt has also changed the course of the canals.
Explanation:
I took a majority of the information from a quiz prior to this assignment. I know that this is several days after you requested help but I hope that this helps you and other students!
(60 POINTS) When an insect becomes trapped in a spider's web, the spider moves towards the insect. The spider could be alive because it displays
which sign of life?
A. information system
B. growth and development
C. response to environment
D. reproduction
Answer:
B. growth and development
Explanation:
im just guessing so i cant say for sure hope this helps tho
Answer:
B
Explanation:
Which three statements make up the law of gravity?
O A The strength of the gravitational force between two objects
decreases as the distance between their centers increases.
B. Matter attracts all other matter in the universe.
C. No matter where you are in the universe, you will always have the
same weight
D. The strength of the gravitational force between two objects
increases as the total mass of the objects increases
A, B and D
Explanation:
Cordite required ethanol.
O True
O False
Answer:
False I believe I just went in quizzlet
A student is performing an investigation using rennin and milk. Rennin is an enzyme that can solidify milk. She
puts milk in three test tubes with rennin and places the tests tubes in water baths at different temperatures
of 32°F, 98°F, and 212°F. She notices the rennin enzymes become denatured at 212°F and do not solidify
the milk. Which statement correctly describes the effect of the denatured enzymes?
A. Denatured enzymes are slowly active.
B. Denatured enzymes are no longer active
C. Denatured enzymes reverse the reaction.
D. Denatured enzymes speed up the reaction.
Answer:
The correct answer is - option B. denatured enzymes are no longer active.
Explanation:
Denaturation of the enzymes or proteins results in changes in their original structure which ultimately results in the loss of their particular functions. The denaturation of proteins or enzymes takes place due to extreme temperature or pH which leads to a change in the active site of an enzyme.
Due to this change, the substrate will no longer fit in the active site and become inactive as enzymes work together with the substrate and the active site is the essential part of the enzyme for its activity. In this case, this is condition takes place which makes it denatured at 212 degrees F.
In a study of a muscle disorder, several families exhibited vision problems, muscle weakness, and deafness. Analysis of the mtDNA (mitochondrial DNA) from affected persons in these families was analyzed using PCR (polymerase chain reaction) and gel electrophoresis. The unaffected samples were collected from multiple mitochondria, whereas each affected sample was collected from a single mitochondrion. What can you conclude about the affected individuals' mitochondrial DNA?
A. There is no common deletion.
B. There is one common deletion.
C. There are two common deletions.
D. There are more than two common deletions.
Answer:
A. There is no common deletion.
Explanation:
The correct answer to the given question is the option A. There is no common deletion.
In the study of the muscle disorder, the samples taken and the effects observed concludes that there was no common deletion among the analysed families and their mitochondrial DNA.
what are the main functions of the skelatal system
Answer:
The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals.
Explanation:
Is a human egg cell a somatic cell or a gamete?
Answer:
A human egg cell would be a gamete cell, not a somatic cell
Explanation:
Heeeeeelp please
Answer and I will give you brainiliest
Explanation:
Such an offspring would have the genotype YY, which are the dominant alleles that code for yellow colour in bananas.
In the Punnett's Square, none of the offspring have YY genotype. Hence the answer is 0%.
Margo notices that waves start passing her more often. What can she conclude about the frequency and wavelength of the waves?
Maro concluded that the frequency is increased while the wavelength would be decreased with respect to the wave that starts passing her more often.
What is Wavelength?Wavelength may be characterized as the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.
The frequency or the energy of the wave is inversely related to the wavelength of any wave. This is because when frequency increases, wavelength (λ) decreases, and vice-versa. While the energy of the wave and frequency is directly related to one another.
Therefore, Maro concluded that the frequency is increased while the wavelength would be decreased with respect to the wave that starts passing her more often.
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UNDERSTANDIN
Multiple Choice
5 Which of the following is a character-
istic of all animals?
a. asexual reproduction
b. producing their own food
c. having many specialized parts
d. being unable to move
6. What does eutrophication cause?
O A. A reduction in water pollution
O B. Increases in fish populations
O C. A new food source for birds
D. Toxic algae blooms
Answer:
d toxic algae blooms
Explanation:
because it is eutrophication
If I turn off all molecules expect for protein and amino acids what do I observe
Answer:
hidhyrydhrshrzhrshrsurshrshrzhrdhrzhrs
Answer: um first you need to show us a exmple
Explanation:
Select the word or phrase that best completes each of the sentences below.
The smallest units of life are called
is the process of creating new living things.
is the phenomenon of living things responding to their environment
Answer:
1. CELL
2. REPRODUCTION
3. IRRITABILITY
Explanation:
1. All living organisms are composed of CELLS, which according to the cell theory as proposed in the 1800's is the smallest structural and functional unit of life.
2. REPRODUCTION is a characteristics possessed by all living things. It is the process whereby living organisms/things create new living things.
3. IRRITABILITY is another characteristics of living things, which is the process whereby living things respond to changes in their environment called STIMULUS e.g heat, nutrient stress e.t.c.
Explain what factors can lead to genetic
variation within a population.
Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Hope this helped :)
Animal and plant cells have all of the following EXCEPT
A. chloroplasts to carry out photosynthesis.
B. vacuoles to store water and nutrients.
C. a nucleus with DNA to replicate cells.
D. mitochondria to form chemical energy.
Answer:
The answer is A, chloroplasts to carry out photosynthesis.
Explanation: The animal cell does not have photosynthesis.
Animal and plant cells have all of the following EXCEPT - A. chloroplasts to carry out photosynthesis.
Chloroplasts are the cellular membrane-bound organelle that is specific to the plant cell and does not found in animal cells. Chloroplast carried out the process known as photosynthesis.
In these organelles, photosynthetic pigment chlorophyll found that captures the energy from sunlightMitochondria are also membrane-bound organelle found in all eukaryotic cells including animal and plant cells to carry out cellular respiration.The nucleus is also present in both types of the eukaryotic cell, plant and animal cell that stores genetic material.Vacuoles are present in the eukaryotic cells, to store water and nutrients.Thus, Animal and plant cells have all of the above EXCEPT - A. chloroplasts to carry out photosynthesis.
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what is heat? please help
Answer:
I am pretty sure its thermal energy but you might have to check that
HELP PLS <3
What evidence does the diagram provide that humans and kangaroos have evolved from a single common ancestor? (3)
Answer:
Their backbones and chest bones are same.
Which kind of energy propels a sailboat? A) chemical energy , B) electrical energy, C) mechanical energy, D) thermal energy
Answer:
It is C or D but most likely C
Explanation:
does humans produce two types of cells
Answer:
yes
Explanation:
they are :
somatic cellgerm cellThrough the process of natural selection, favorable forms of genes are passed on more than other forms of genes.
A. True
B. False
If the DNA integrates properly into the germ cells, the adult fly will contain _________________ that contain _____________________________. After mating, these flies can then produce progeny that will contain ______________________.
Answer:
Five pairs of autosomal and one pair of heterochromatic sex chromosomes.
Explanation:
The adult fly will contain 12 number of chromosomes that contain five pairs of autosomal and one pair of heterochromatic sex chromosomes. After mating, these flies can then produce progeny that will contain diploid i. e. double number of chromosome. One set of half chromosomes from the male fly while the other half chromosomes comes from female fly so the offspring will receive double number of chromosomes.
Why would looking for the persons responsible for sneaking endangered species (rare birds, for example) into the United States be considered a job for a forensic scientist
Answer:
Forensic scientists are able to find the answer.
Explanation:
The persons responsible for sneaking endangered species into the United States be considered a job for a forensic scientist because forensic scientist is able to find out the persons. Forensic scientist are the investigators who collect evidences from the crime scene and leads to the person who commit crime. So the forensic scientist is the only person who find out the persons responsible for sneaking endangered species.
Describe Ted Bundy’s childhood and his relationship with his family.
Answer:
Bundy was born at a home for unwed mothers in Burlington , Vermont, on November 24, 1946. He remained there for two months after his birth. His mother, Eleanor Louise Cowell, known as Louise, considered placing her baby up for adoption, but her father, Sam Cowell, apparently wanted the baby to join the family in Philadelphia. HOPE THIS HELPSSSSS!
Explanation: