The result of meiosis is that each daughter cell produced from the original cell receives exactly half the chromosomes from the original cell (option D).
What is meiosis?Meiosis is the cell division of a diploid cell into four haploid cells, which develop to produce gametes or sex cells.
These cells are the gametes; sperms in males and egg in females. The process of meiosis is divided into 2 stages. Each stage is subdivided into several phases.
The meiotic process is called reduction division because it reduces the number of chromosomes in the parent cell by half.
For example, if the somatic cell of a dog posseses 78 chromosomes, this means that as a result of meiosis, the gametes of the dog will possess 39 chromosomes each.
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How much space does a red imported fire ant need to grow and reproduce
Answer:
The size of the sides is up to you – the thinner the sides are the less space the ants will have. It all depends on the species, but roughly between 1,5 and 3 centimetres (0,6-1,2 inches) is recommended. To make sure the formicarium will keep together we need something to fixate it with.
Product of process 3 in nucleus
Replication and transcription are typically carried out in the nucleus. The three products of these processes are DNA, mRNA, and rRNA. DNA is the product of replication, and RNA is the product of transcription.
What is a nucleus?In the eukaryotic cell, the nucleus is the central part of the cell. It contains the genetic material, such as the chromosomes, of the organism.
In the double membrane structure of the nucleus, DNA replication takes place. A copy is formed as a result of DNA replication from one DNA. In transcription, mRNA is formed from the gene (DNA). From nucleolar DNA, rRNA is formed. The gene splicing takes place in mRNA in nucleus.
The three products are DNA, mRNA, and rRNA, which are synthesized from the nucleus by the processes of DNA replication and transcription, respectively.
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7.Name the stages of photosynthesis and explain them in brief.
Snake venom is modified saliva that is secreted from glands on the sides of the snake's head.
Some types of venom functions by changing the shape of the enzyme cholinesterase in the
snake's prey. Cholinesterase is an enzyme that functions as a neurotransmitter that allows
the brain to control muscle movement.
What is the result of the shape change in the enzyme cholinesterase?
F The enzyme will no longer catalyze the reaction, which causes the prey to lose muscle
control.
G The substrate will change shape to match the enzyme so that the prey muscles continue
working.
H The enzyme will be capable of binding to more substrates that allow the prey to escape
the snake.
J
A new product will be made that causes the prey's muscles to not function as well as
they should.
The cholinesterase enzyme's altered shape prevents it from catalyzing the reaction, which makes the prey lose control of their muscles.
Where do snakes' venom glands reside?The venom gland, a salivary gland modified, is found slightly below and behind the eye. The size of the venom gland depends on the size of the snake, and this figure depicts the Timber Rattlesnake's venom gland's approximate size in relation to its skull (Crotalus horridus).
What are the names of venom glands?Before being transported by a duct to the base of channeled or tubular fangs, the venom is first stored in huge glands called alveoli.
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4. Red-green colorblindness is inherited as a sex-linked recessive. If a colorblind
woman marries a man with normal vision, what would be the expected
phenotypes of their children?
The children would be 50% colorblind.
What is colorblindness?
Colorblindness refers to the inability to see colors in a normal way. Colors like blue, green, red, etc. in some very rare cases, a person cannot see any color at all. Colorblindness is also referred as Daltonism, named after its founder- john Dalton.
Types:
Monochromacy: 2-3 cone pigments are absent or damaged (red, green, blue). This leads to complete colorblindness.
Dichromacy: only one cone pigment is absent/ damaged (red, green, blue). This leads to partial colorblindness.
Color blindness is mostly a sex-linked recessive disorder. If a colorblind woman married a man with normal vision, the children would be fifty percent colorblind.
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Why do male mammals risk having the testicals outside the main body?
Pike's Peak, in Colorado, is pictured below. Pike's Peak has
been shaped in part by water filling cracks in the rock, then
freezing and expanding
Which type of weathering occurs after water enters cracks in rock and then
freezes?
A. Abrasion
B. Oxidation
C. ice wedging
D. Mass wasting
Answer: B
Explanation:
Answer: C
Explanation:
it’s really not it I js got the answer wrong for oxidation and the right answer is ice wedging trust me:)
What is the name of the embedded protein that provides a channel for
the hydrogen ions to pass through the membrane?
Answer:ATP Synthase
Explanation:
Which event occurs in photosystem I?
1. Water molecules are broken apart.
2. Light energy excites electrons.
3. Oxygen is released as waste.
4. Electrons are transferred to ferredoxin.
Answer: Electrons are transferred to ferredoxin.
Which of these pathogens are
single-celled eukaryotes that
infect through contaminated water
or insect bites?
fungi
protists this
Answer:
b) Protists
Explanation:
Protists like protozoa are the single celled eukaryotes that infect through contaminated water or insect bites. Hence, the option (b) is correct answer.
Which structure is the site of the synthesis of proteins destined for export from the cell?
a. Lysosomes
b. Smooth ER
c. Rough ER
d. Free cytoplasmic ribosomes
e. Golgi vesicles
Answer:Golgi Vesicles
How many tall, yellow plants would result from the cross of a heterozygous tall, green pea
plant and a homozygous, short, yellow plant?
Considering the genotype of heterozygous tall, green pea plant as TtYy and genotype of homozygous, short, yellow plant as ttyy, the number of tall, yellow plants obtained as offspring will be 4. The cross showing the obtained progenies is given in the image.
Homozygous condition of genotype is when both the alleles for any trait are similar. The homozygous alleles can either be dominant or recessive.
Genotype is the genetic composition of an individual. It can be for the the entire genome or for a particular trait. The genotype can be heterozygous or homozygous. For dihybrid heterozygous genotypes, 4 types of gametes will be obtained (TY, Ty, tY, ty according to the given question) and for dihybrid homozygous genotypes only type of gamete (ty) will be obtained.
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this cross, the tall, green plant is heterozygous for the trait of tallness (Tt) and the short, yellow plant is homozygous for the trait of shortness (tt). When the two plants are crossed, their offspring will inherit one gene for tallness and one gene for shortness from each parent.
Since the tall, green plant is heterozygous, it has one dominant gene for tallness (T) and one recessive gene for shortness (t). The short, yellow plant is homozygous, so it has two recessive genes for shortness (tt).
Since tallness is dominant and shortness is recessive, all of the offspring will inherit the dominant gene for tallness and will be tall. However, since the short, yellow plant is homozygous for the recessive trait of yellow, all of the offspring will also inherit the recessive gene for yellow from the short, yellow plant and will be yellow.
Therefore, the number of tall, yellow plants that will result from this cross is:
all offspring
This means that all of the plants in this cross will be tall and yellow.
If the heart becomes damaged or weakened, how will this affect the body’s systems?
Answer:
If the heart becomes damaged or weakened, how will this affect the body's systems? The circulatory system will not function well, which will affect all other body systems.
Explanation:
Which
hypothesis is
correctly
written?
A. What will happen if a
plant is put under green
light rather than
another color?
B. If the plant is put
under green light, then
it will grow the largest.
C. Plants put under
green light tend to be
larger, but no one
knows for sure.
Answer:
I think C
Explanation:
Plants put under green light tends to be larger, but no one knows for sure
I think it's correct because hypothesis's are guesses so if no one knows for sure, it could be correct
16. Write About It Suppose you are a doctor with
patients who are mountain climbers. Write a
letter to these patients that explains how gas
exchange is affected at the top of a mountain,
where air pressure is lower and there is less
oxygen than at lower elevations.
Dear mountaineers, There are different factors that affect the gas exchange at the top of a mountain like air pollution, temperature, particular matter the ozone layers and among others.
What is Gas Exchange?
During the process of gas exchange, the oxygen passes from the lungs to the blood stream and at the same time a waste gas called carbon dioxide passes from the blood stream to the lungs.The carbon dioxide is then released from the lungs through breathing and the good gas called oxygen is inhaled.what is the air pressure at a height?
As we go up in the heights, the air pressure starts to lower down and it becomes difficult to breathe properly. At the top of a mountain, the air pressure forms air paper-thin, that results in less oxygen in the air to inhale.To learn more about Gas Exchange and Air Pressure, check this link:
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All organisms use respiration, but?
a. only plants have mitochondria
b. only animals have mitochondria
c. only prokaryotes have mitochondria
d. only eukaryote have mitochondria
Answer:
I believe that it is D
Explanation:
Prokaryotes don't have mitochondria.
which of the following sources is likely to provide the most reliable scientific information about a new kind of motor oil
Answer: A peer-reviewed article about the effectiveness of the motor oil.
In the human body, many cell types do not continue dividing. Give two examples of cells that do not divide and two examples of cells that grow and divide rapidly and regularly.
Neurons and mature red blood cells do not divide. Skin cells and stomach cells grow and divide rapidly and regularly.
Neurons are cells of the nervous system that do not have centrioles because the centriole is an important organelle for cell division.
Red blood cells do not have nuclei or other organelles required for DNA and RNA synthesis. So they can't divide.
Skin cells lose dead cells every day. So they divide rapidly and regularly to replace the lost cells to prevent infection.
The cells lining the stomach undergo wear and tear during food absorption, digestion, and waste elimination. So these cells also divide rapidly and regularly to replace the lost cells.
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Lesson 3.2 Review -- High School, Grade 9
1. How does solar energy and the greenhouse effect impact Earth's global climate system?
2. Describe the factors that result in different climates in different parts of the world.
3. Describe the different causes of climate change.
4. What are the factors that result in different climates in different parts of the world?
5. (Apply Scientific Reasoning) How might the speed of climate change affect the ability of life on Earth to adapt and survive?
6. For Biosphere to meet its goal, why was it necessary for it replicate a variety of climates?
The Solar energy and the greenhouse effect impact Earth's global climate system by increasing the temperature on the surface of the Earth. There are several factors such as green house effect and air pollution that result in different climates in different parts of the world.
What is green house effect?The greenhouse effect has been described as when gases in the earth's atmosphere has been trapped the heat from the sun that would otherwise escape into space. This concentration of the Solar energy has been trapped in the earth's lower atmosphere causes the temperature of the earth's surface to rise.
The greenhouse effect has been traps this heat energy in the earth's lower atmosphere. This could leads to increased temperatures on the surface of the earth and intense impacts on the global climate system.
Therefore, There are several factors such as green house effect and air pollution that result in different climates in different parts of the world.
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Why is meiosis called cell division?
Meiosis, also known as "cell division," involves cutting the number of chromosomes in half, ensuring that the newborn will have the right number of chromosomes when the sperm and egg fuse.
Why is Meiosis Important?The process of meiosis is what creates the gametes, which are essential for sexual reproduction. It turns on the genetic material required for gamete development. It helps to maintain a consistent number of chromosomes by cutting the number of chromosomes in gametes cells in half. This is significant because following fertilization, the number of chromosomes doubles. An independent combination of paternal and maternal chromosomes occurs during this process. As a result, the chromosomes and the traits they regulate are rearranged.
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Flooding, fires, volcanoes, and human changes can all damage ecosystems. The process of regrowth in an ecosystem tends to restore a state of equilibrium. Which is an example of how a damaged ecosystem will begin the restoration process?
An example of how a damaged ecosystem will begin the restoration process is:
some species of pine trees only release their seeds following the extreme heat of a forest fire; option D
What is the process of regrowth in an ecosystem?The process of regrowth or restoration in an ecosystem is the process by which the ecosystem recovers when a drastic change occurs in the ecosystem that alters the equilibrium in the ecosystem.
Such changes could be caused by factors such as flooding, fires, volcanoes, and human activities.
The process of regrowth starts with primary producers first colonizing the disturbed ecosystem before other organisms then start habiting the ecosystem.
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Complete question:
Flooding, fires, volcanoes, and human changes can all damage ecosystems. The process of regrowth in an ecosystem tends to restore a state of equilibrium. Which is an example of how a damaged ecosystem will begin the restoration process?
A Seasonal turnover in a lake replenishes oxygen to deep water and cleanses waste products from the lake.
B Rain forest species can spread their seeds over a wide area to begin growing in new regions.
C Mining companies plant trees and add wildlife to restore an area after a mining operation.
D Some species of pine trees only release their seeds following the extreme heat of a forest fire.
I don’t know how to do this
Answer: it is the first one
Explanation:
he was inspired by his father to be a doctor. And deep down his dream is to be a doctor
Please guys i need help so baldy
1. Axon terminal
2. Node of Ranvier
3. Dendrites
4. Nucleus
5. Cell body
6. Axon hillock
7. Endoplasmic reticulum
8. Synaptic vesicle
9. Mitochondria
10. Microtubule
A scientist just discovered animal A. Animal A is a warm-blooded animal that lives underwater, breathes through gills, and reproduces in water. Animal A is not a fish. Why?
A. Animal A lives in the water.
B. Animal A breathes through gills.
C.Animal A is warm blooded.
D.Animal A reproduces in the water.
Animal A is not a fish because it is warm blooded (option C).
What is warm-blooded animal?In zoology, being warm-blooded means ability to maintain a relatively constant and warm body temperature, regardless of the ambient temperature, also called endothermic.
Members of the pisces class are called fishes. Fishes are cold-blooded vertebrate animal that lives in water, moving with the help of fins and breathing with gills.
According to this question, a scientist just discovered an animal A. This animal was found to be warm-blooded, lives underwater, breathes through gills, and reproduces in water.
However, Animal A cannot be considered a fish because it is warm-blooded rather than being cold-blooded.
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Drag each tile to the correct box.
Beginning with the flow phase, arrange the biochemical processes in the order in which they occur during the menstrual cycle.
FSH and LH stimulate the follicles to develop and the oocyte to produce estrogen.
A breakdown of corpus luteum causes progesterone levels to drop.
A spike in LH causes the follicle to rupture.
The endometrial lining breaks down and low levels of estrogen stimulate the pituitary to release FSH and LH.
Rising estrogen levels suppress FSH production and development of other follicles.
High progesterone levels maintain the endometrial lining of the uterus.
During the menstrual cycle, it begins with endometrial lining breakdown to break down of the corpus luteum with a change in hormonal level.
What is the menstrual cycle?The endometrial lining is broken and due to low levels of estrogen begins to stimulate the pituitary to release FSH and LH, this hormone stimulates the follicles for developing oocytes to produce estrogen.
When estrogen level rise it suppresses FSH production and develop other follicles, gradual rise in LH causes the follicle to rupture then high progesterone levels maintain the endometrial lining.
Therefore at last a breakdown of the corpus luteum this progesterone levels to drop and complete the cycle.
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What’s the correct answer answer asap for brainlist
Answer:
B
Explanation:
Explain the effects of base substitution, insertions, and deletions in the framework
Substitution
A substitution is a mutation that interchanges one base for another (i.e., a change in a single “chemical letter” such as switching an A to a F). Such a substitution can:
change a codon to one that encodes different amino acids and causes a small change in the protein produced. For example, sickle cell anemia is caused by substitutions in the beta-hemoglobin genes, which alters a single amino acid in the produced protein.
Insertion
Insertions are mutations in which extra base pairs are inserted into a new place in the DNA framework.
Deletion
Deletions are mutations in which a section of DNA is lost, or deleted from the existing DNA framework.
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Which activity describes the use of technology in science?
listening to a scientist talk about cells
viewing stars through a telescope
observing a plant through the bedroom window
creating a blank data table in a notebook
Answer:
creating a blank data table in a notebook
Answer:
The Answer is B. viewing stars through a telescope
Explanation:
what is the structural relationship between glucose and galactose?
The isomer of glucose is galactose. Only how their atoms are organized makes a difference. Stereoisomers of glucose and galactose exist.
The orientation of the hydroxyl group (OH) at carbon 4 distinguishes galactose from glucose most significantly in terms of structure. As isomeric monosaccharides (hexoses), glucose, galactose, and fructose have the same chemical formula but slightly different structures. Aldoses are glucose, galactose, and ketoses are fructose.Epimers are a class of carbohydrates that only differ in the position of the hydroxyl (or -OH) group at one position. Galactose and glucose are therefore epimers because they have the same configuration at all positions other than one.
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Why is mathematics an important tool for scientist?
Explanation:
because it's help them to understand the whole world and universe