Answer:
Damaged DNA causes an increase in the number of mutations in the cell: this is extremely dangerous for the body and in fact this process is at the basis of the birth of cancer cells.
To avoid this, the cell is equipped with some molecular protective systems including the activation of the p53 protein. p53 induces recruitment of DNA damage repair systems and stops cell replication until the damage has been repaired. If the damage cannot be repaired p53 induces cell death through apoptosis
What happens to chromosomes when an ovum and a sperm meet at fertilisation
Answer: When egg and sperm cells combine in fertilizations, they merge the two sets of chromosomes, ending up with 46 chromosomes in total. The maternal chromosomes from the egg cell and the paternal chromosomes from the sperm cell pair up. The resultant cell is called a zygote. Fertilization happens when a sperm cell successfully meets an egg cell in the fallopian tube. Once fertilization takes place, this newly fertilized cell is called a zygote. From here, the zygote will move down the fallopian tube and into the uterus. The zygote then burrows into the uterus lining.
Explanation:
Type a paragraph describing how the circulatory and respiratory systems work together to deliver oxygen to the body’s tissues and remove carbon dioxide.
i. Include the names of structures and other components that play a role in gas
exchange.
ii. Explain how the interactions between the circulatory and respiratory systems
contribute to maintaining homeostasis in the body.
b) Type a second paragraph comparing the accuracy of your model to actual organ systems and
their functions.
i. Consider how a model is different from an actual human body.
ii. Describe the limitations of a model
Answer:
The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in and out of the lungs through the trachea, bronchi, and bronchioles. Blood moves in and out of the lungs through the pulmonary arteries and veins that connect to the heart.
The circulatory and respiratory system work together to provide oxygen and remove carbondioxide gas.
How circulatory and respiratory system work together?The circulatory and respiratory systems work together to circulate blood and oxygen throughout the body. Air moves in to bring oxygen and out of the lungs to remove carbondioxde gas from the body. Blood moves into the lungs to bring carbondioxide gas and to load oxygen with the help of pumping of heart.
So we can conclude that circulatory and respiratory system work together to provide oxygen and remove carbondioxide gas.
Learn more about system here: https://brainly.com/question/14323743
White blood cells ingest, then digest, a number of bacteria and other pathogens. White blood cells would require high numbers of which organelle in order to function properly?
Answer:
Lysosome
Explanation:
scientific and common name for this?
Answer:
The common name for this is Moss
Scientific name is Bryophyta
Explanation:
What are the two most common sources for rivers and streams?
Answer:The source of a river or stream may be a lake, a marsh, a spring, glacier, or a collection of headwaters. The furthest stream is called the headstream. Headwaters are small streams that create the river or stream and may be cool waters, because of shade and barely melted ice or rain.
Explanation:I did this in class 2 days ago LOL
Answer:
The source of a river or stream may be a lake, a marsh, a spring, glacier, or a collection of headwaters. The furthest stream is called the headstream. Headwaters are small streams that create the river or stream and may be cool waters, because of shade and barely melted ice or rain.
Explanation:
Hope this helped you :D
AHHHH PLS HELPP Which method is better for the environment: the controlled burn (burning oil off of the water) or using the naturally-occuring bacteria?
Answer:
using the naturally_occuring bacteria
Explanation:
go trying and helping wich with
A plant produces seed cones and pollen cones . Is it vascular? To what group of plants does it belong
A plant that produces seed cones and pollen cones is a vascular plant, and plants that produce seed cones and pollen cones belong to the group of plants known as gymnosperms.
What are gymnosperms?Gymnosperms are a group of seed plants that produce seeds that are not enclosed in an ovary and produce open seeds that are usually borne in cones and include a variety of plant species, including conifers such as pine, spruce, and fir trees, cycads such as palm-like plants, ginkgoes, etc., and the production of seed cones and pollen cones is a vital characteristic of gymnosperms, these seed cones, which are also called female cones, produce seeds that are typically larger and more complex than pollen grains.
Hence, a plant that produces seed cones and pollen cones is a vascular plant and belongs to the group of plants known as gymnosperms.
Find out more about gymnosperms here.
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Plzz help
Determine the proper number of chromosomes that would be found in a human cell at each stage of the cell cycle.
Answer: The genetic material of the cell is duplicated during S phase of interphase just as it was with mitosis resulting in 46 chromosomes and 92 chromatids during Prophase I and Metaphase I. However, these chromosomes are not arranged in the same way as they were during mitosis.
Explanation:
why is this conversion of energy from one molecule to another necessary for all cells?
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Actually Welcome to the Concept of the energy conversion
=> ATP can be used to store energy for future reactions or be withdrawn to pay for reactions when energy is required by the cell.
=> When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP).
What percentage of Americans use solar power ?
Answer:
66.7 percent.
Explanation:
Which of the following is an advantage of meiosis and sexual reproduction?
A. Meiosis ensures that offspring will not inherit any genetic disorders.
B. Meiosis ensures that offspring are genetically identical as their parents.
C. Meiosis ensures that offspring will have identical phenotypes to their parents.
D. Meiosis ensures a wider variety of genetic variation.
Answer:
D. Meiosis ensures a wider variety of genetic variation.
This happens above all thanks to the Crossing over, the process in which the exchange of genetic material during sexual reproduction between two homologous chromosomes' non-sister chromatids results in recombinant chromosomes.
I NEEEED HEEELP PLZZZZZZZZ :))
Answer:
They would have both black and white feathers because codominance means that both genotypes have to be expressed. Gray isn't an apparent (given) trait.
2. How are humans making greenhouse gases of our own?
burning fossil fuels in our cars
burning forests
O all of these
Answer:
All of them. Plus feeding cows corn instead of grass makes them gassy.
Explanation:
Which function of the integumentary system is illustrated in the release of sweat?
Absorbtion
Protection
Sensory Reception
Regulation
Secretion
Both regulation and secretion
Answer:
Secretion
Explanation:
Not completely sure tho, good luck
1 point
The type of cellular transport shown in the image (to the right) is called
Endocytosis
Exocytosis
Osmosis
Diffusion
Answer:
Exocytosis
Explanation:
Exocytosis is when a bulk of molecules exit the cell. The arrows indicate that it is leaving the cell.
Answer:
B. Exocytosis
Explanation:
Exocytosis is the process by which vesicles in the cytoplasm fuse with the cell membrane, releasing their contents into the cell's external environment. Cellular wastes are often disposed through this process.
list the planets from smallest to largest
Answer:
Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter
Explanation:
Answer:
Mercury, Mars, Venus, Earth, Neptune, Uranus, Saturn, and Jupiter.
Explanation:
hope this helps!!!:)
If there are 60 crayfish living in a pond that is 20 cubic yards, what is the population density?
Answer:
80
Explanation:
Santos and Lüderitz are the same distance from the equator, and both cities are near the ocean. The air temperature in Lüderitz is colder than the air temperature in Santos. What causes the air temperature in these places to be different? Explain what causes the difference as completely as you can.
Answer:
The Ocean Currents.
Explanation:
if you look at a current map, you'll see warm currents near Sanots and cold ones near Lüderitz. Therefore, the air in Sanots is a lot warmer and the air in Lüderitz is colder.
The phenomenon of the ocean current is responsible for this deviation of air temperature between two places.
What do you mean by Air temperature?Air temperature may be defined as the temperature of the surrounding air of organisms including humans.
The ocean water captures the heat from the sunlight and increases the temperature of the ocean. This heat is then entranced through ocean circulation and increases the temperature of the air as well as the atmosphere.
The air temperature in Luderitz is colder because the ocean of this region receives less sunlight in low intensity which results in less heat captured by the ocean and makes the air a little bit colder than that of Santos oceans.
Therefore, it is well described above.
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The Moon completes one orbit around the Earth in approximately
in approximately
and completes one cycle of its phases
A 271/3 days, 24 hours
B 24 hours, 24 hours
C 24 hours, 29 1/2 days
D 27 1/3 days, 29 1/2 days
Answer:
Answer is D
Explanation:
Takes about then to circle the Earth
Answer:
It takes 27 days, 7 hours, and 43 minutes
Explanation:
transcribe this strand of DNA 5' 3’ TACGCGCATTTCGCCATGAAGACATTTATTCTGCTTCTC into mRNA- and Amino acid-
Answer:
AUGCGCGUAAAGCGGUACUUCUGUAAAUAAGACGAAGAG
Explanation:
this is the complementary strand for the mRNA.
A=U
C=G
G=C
T=A
this is the key for any mRNA strand.
;)
Why do we want to produce genetically different organisms?
Answer: Genetically engineered crops produce higher yields, have a longer shelf life, are resistant to diseases and pests, and even taste better.
Explanation:
What is the meaning of the term metabolism?
Which of the following is true about the role of genetic and environmental factors in human health?
A) Genes are the only factor affecting whether or not an idividual will contract a disease.
B) Genetic factors are more important than environmental factors in determining an individual's
personal health risks.
C) Individuals can influence their health by controlling their genetic traits.
D) Environmental factors determine whether or not all genetic traits lead to health issues.
E) Certain environments can lead to an increased risk of developing certain diseases.
Answer:
E) Certain environments can lead to an increased risk of developing certain diseases.
Explanation:
The lesson states that specific environments can increase the chance of health problems.
How does natural selection lead to the evolution of a species?
Answer:
One of these is natural selection, which is a process that increases the frequency of advantageous gene variants, called alleles, in a population. Natural selection can result in organisms that are more likely to survive and reproduce and may eventually lead to speciation.
Explanation:
A student examines a periodic table.
Which inferences about sodium (Na) are true?
Answer:
true c this is the answer
what happens to most solar radiation when it gets to earth??
Answer:
Most of the solar radiation is bounced off of earth´s atmosphere.
Explanation:
Due to earth´s magnetic field, we are able to be protected from most of the solar radiation the sun emits.
SCIENCE ASSAP PLS
what does secondary succession mean in science
Why do we care how strong a rock is?
Answer:
hahahahahahahaha
Explanation:
because
Answer:
to throw it at ur cheating bf
Explanation:
lma.o
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I will mark someone brainliest! Please help!!
Answer:
The first one
Explanation:
Mark me brainliest please
During cellular respiration, energy is transferred from *
1 point
A. ATP to glucose
B. CO2 to enzymes
c. sunlight to glucose
D. glucose to ATP
Answer:
a or b I'm sorry but I know it's not c
Answer:
A? im not sure..................