Answer:
Perform different functions for the organisms
Explanation:
1-Stem cells can differentiate into other specialized cells.
2-Specialized cells are more complex.
3-Specialized cells usually do not reproduce
What is it called when genetic information is exchanged between homologous chromosomes during prophase 1?
A. Meiosis
B. DNA Replication
C. Crossing Over
Answer:
C. Crossing Over
Explanation:
Crossing over, also called recombination, is the process by which non-sister chromatids of homologous chromosomes exchange a segment of their chromosomal material with one another. The process of crossing over occurs only in the prophase I stage of meiosis.
The process is responsible for genetic variation in the gametes produced, thereby, leading to organisms that are genetically unique.
Answer:
C. Crossing Over
Explanation:
The crossing over is called when genetic information is exchanged between homologous chromosomes during prophase 1.
Question 2 of 10
How is a scientific theory developed?
A. One scientist proves his hypothesis with an experiment.
B. A single experiment is performed once.
C. An experiment is repeated several times.
D. Many different experiments are performed and repeated.
SIE
What are genes?
A. A whole DNA molecule that codes for many proteins
B. Section of DNA that code for a DNA molecule
C. Sections of DNA that code for a protein
Answer:
A. A whole DNA molecule that codes for many proteins
Explanation:
To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies. Each DNA sequence that contains instructions to make a protein is known as a gene.
in your own words, what is the definition for Osmotic pressure?
I love this topic
Answer:
Osmotic pressure is defined as the pressure that must be applied to the solution side to stop fluid movement when a semipermeable membrane separates a solution from pure water.
What type of energy makes wind blow out towards the water at night
Answer:
kinetic energy
The wind is energy in motion—kinetic energy—and it is a renewable energy source
what happens directly after metaphase
Answer:The third phase of mitosis, following metaphase and preceding telophase, is anaphase. Since the sister chromatids began attaching to centrosomes on opposite ends of the cell in metaphase, they're prepped and ready to start separating and forming genetically-identical daughter chromosomes during anaphase.
Explanation:
Answer:
The next phase is anaphase. The chromatids separate at the centromere. The spindle fibers begin to pull them to opposite sides of the cell.
Explanation:
*60 POINTS* | No links, I thank you in advance!!
1. Describe the course of the water cycle which formed in Biosphere 2
2. Deduce what would happen if you were to store your “Biosphere X” in the dark for a few weeks.
1) Solution
The sun warms the ocean surface and other surface water, causing liquid water to evaporate and ice to sublime. It turn directly from a solid to a gas. These sun driven processes move water into the atmosphere in the form of water vapor.
2) Solution
If we store the “Biosphere 2” in the dark for a few weeks, the water vapour will condense to form water.
Malaria is a disease that kills over 800 000 people each year. What causes malaria and how is it spread? What drugs are used to treat this disease and why should Canadians be concerned about the spread of malaria worldwide?
Answer: Usually, people get malaria by being bitten by an infective female Anopheles mosquito. Only Anopheles mosquitoes can transmit malaria and they must have been infected through a previous blood meal taken from an infected person.
If you have a stressful job or an unhealthy diet, what impact might that have on your cells? Only 1 correct answer.
A. the DNA will all mutate and die
B. different genes may be expressed
C. no changes would occur to your DNA over your lifetime
Answer:
B. different genes may be expressed
Explanation:
If you're chronically stressed and your body is constantly flooded with cortisol, you will get sick easier because your white blood cell count will drop, your likelihood of developing tumors will increase and you'll also become more vulnerable to infection and tissue damage.
Answer:
B. different genes may be expressed
Explanation:
If we have a stressful job or an unhealthy diet, different genes may be expressed on our cells.
Which of the following correctly describes the arrangement of the phospholipids in the lipid bilayer of the cell membrane? *
Phospholipids line up head to head, so the phosphate heads are separated from water.
Phospholipids line up head to tail, because opposites attract.
Phospholipids line up tail to tail, so the fatty acid tails are separated from water.
Phospholipids line up with no pattern, because they're molecules which move randomly.
Answer:
Two layers of phospholipids where the outer layer has the hydrophilic heads facing toward the outside of the cell and the inner layer have the hydrophobic tails facing toward the inside of the cell.
can someone help me with the ones that are blank i will give brainliest.
Answer:
Heritable - transmittable from parents of an organism to their offspring
Protein - genes provide the instructions to make these
Mutation - a slight change in an organism or population that is not normal
Gene - carried in the nucleus of a cell to determine what a cell makes
Resistance - the genetic ability of an organism to repel an attack to their survival
Amalia has the flu, a communicable disease that causes a cough and a runny nose. Which best describes how she likely got it?
She does not exercise.
She has a poor diet.
She touched the doorknob in a classroom.
She inherited it from her parents.
Answer:
is this multiple choice if not i have a better way of answering the third one like; as someone in her class has the flu the person touched the doorknob ,after a while she also touched it and without washing her hands she touched her nose then the disease had entered her body
YOU CAN SIMPLFY IT SINCE IF YOU TO BE IN A TEST YOU CANNOT REMEBER ALL THAT... :)
BUT I TRIED
Explanation:
Answer:
She touched the doorknob in a classroom.
Explanation:
anyone can get a cold By Touching something that was affected, or getting near someone who has been affected.
I hope this helped!
Which of the following would you predict to have NO effect on the rate of photosynthesis in a plant?
1, Carbon dioxide concentration
2, Light Intensity
3, Oxygen concentration
4, Water availability
Answer: 4) Water availability
Explanation: Answer choices 1, 2, and 3 are all essential parts of photosynthesis. Therefore, 4 would be the correct answer.
Answer:
, Oxygen concentration
I HOPE IT HELPS
HAVE A GREAT DAY
what are tissue made out of?
Answer:
Cells. If you are talking about tissue like Kleenex, then easy, soft fabric.
Explanation:
This is the correct answer(s) please trust meh.. And I hope I get Brainliest for my smart and amazing answer! Thank you and have a nice day! Bye!!!!
Answer:
paper
Explanation:
Marsupials, like kangaroos, are found mainly in ____.
A. North America
B. Europe
C. South America
D. Australia
Answer:
D Australia
Explanation:
I already know this
Answer:
Hi, there the answer is D. Australia
Explanation:
A student lifted weights after
from school and felt his muscles
they began to burn. He couldn't continue
lifting weights after doing
exercise for a long time. Is
muscle fatigue is most likely
due to:
(1) the acceleration of the heartbeat and
exhaustion of the heart
(2) the accumulation of oxygen in the
lungs
(3) the lack of oxygen and the accumulation of
waste in muscles
(4) the lack of carbon dioxide in the
muscles
(1) the acceleration of the heartbeat and
exhaustion of the heart
(2) the accumulation of oxygen in the
lungs
(3) the lack of oxygen and the accumulation of
waste in muscles
(4) the lack of carbon dioxide in the
muscles
Answer:
lack of oxygen and accumulation of waste in the muscle
pushing a chair requires less energy than pushing than pushing a desk because
A. The surface area of the desk is larger.
B. The desk has less mass then then the chair
C. The chair has less mass then the desk
D. The chair is smaller
Answer:
c
the chair has less mass then the desk
The chromosomes are located at the equator of the cell
Answer:
called the equatorial plane
Explanation:
During metaphase, the kinetochore microtubules pull the sister chromatids back and forth until they align along the equator of the cell, called the equatorial plane. There is an important checkpoint in the middle of mitosis, called the metaphase checkpoint, during which the cell ensures that it is ready to divide.
Which form of natural selection does the graph represent
Answer: where's the graph?
A scientist studied a population of birds for 10 years. During that time, the population was never fewer than 30 birds and never more than 50. Her data showed that over half of the birds born did not survive to reproduce, because of competition for food and predation. She noticed that In a single generation, about 90% of the birds that were born lived to reproduce, and the population increased to 90. Which inference(s) about this population might be true
Answer:
A particular population limiting factor or factors must have been removed
Explanation:
The population of the birds must have been kept between 30 and 50 individuals by population limiting factors such as the presence of predators within the community or competition for resources such as food or spaces.
For the population to shoot up to 90 all of a sudden, it may be that one or more of the population limiting factors has been removed from the population. It could be that a major predator has been removed from the community or the competition for food/space is now significantly reduced due to more food/space in the community.
Sample Food Chain
Leaf------> Caterpillar--------> Chameleon---------> Snake-----------> Mongoose
Looking at the above picture, what is true?
A) The Mongoose is the tertiary consumer
B) The chameleon eats the snake
C) The chameleon is an autotroph
D) If Mongoose is removed, snake population would increase.
Answer:
D
Explanation:
there will be no predators to eat the snakes
To be considered living you have to be able to produce offspring. This is known as the ability to _________________________
Answer:
I think its procreate
Explanation:
hope it works
The image below shows plant cells. plant cells What feature of cells is best demonstrated in the image? A. Cells are formed from other cells within the same tissue. B. All organisms are made up of a large number of cells. C. All organisms have cells with different shapes and functions. D. Cells are the basic units of structure and make up tissues.
Answer:
The answer is C
Explanation:
I took the test
A scientist is comparing the sequences of related genes among three species. Two of the species have very similar sequences, while the sequence of the third species differs greatly from the others. T
Hi. The question you presented above is incomplete. This makes it impossible for this question to be answered. However, when searching for your question on the internet, I was able to find another question exactly like yours, which asked you to explain the evolutionary relationship between these three species. If that's the case for you, I hope the answer below will help you.
In a simplified way, we can infer that among the three species presented above, the third presented a faster evolution than the first two and this is what explains the difference between the gene sequences between the species. As the question presents, the three species have related genes, which indicates that they had a common ancestor, however the difference in the gene sequence of the third species shows that it evolved first, showing changes that cannot be noticed in the first two species that are evolving more slowly.
Which three of the following examples are human activities that release carbon dioxide into the atmosphere? (Choose the three correct answers)
A
Fossil fuel combustion
B
Decomposition of plants
C
Agricultural activity
D
Deforestation
E
Volcanic eruptions
F
Tree respiration
Answer:
try a and d eeeeeeeeeeeeee
what is definition of biome
Answer:
a large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra.
Which pie graph is shaded to best represent the approximate percentage of time that humans have existed during Earth’s entire history?
Answer: I chose D and got it right just always choose the smallest one their hope this helps yall
Explanation:
प्र.नं. १ समूह'क' मा दिइएकोश
३
लेख्नुहोस् :
क
कञ्चन
तिरष्कार
आशा गरिएको
उपेक्षा
पहिलेदेखि चलिआएको
सन्नाटा विद्युतीयपत्रवा चिठी
अनलाइन
सुनसान
इन्टेरनटमा रही सूचनाआदानप्रदान गर्ने प्रविधि
रहस्यमय
नं.२ खाली ठाउँमा उपयक्तशब्दभर्नहोस ।
[tex]7788x \times \times 789[/tex]
plz attach photo .....
Explanation:
फोटो हाले बल्ला बुझिन्छ । यसरी त के के हो के के।।।।
मिल्छ भने क्रिपया फोटो राखेर प्रश्न न सोध्नु होला
question sodda photo rakhera sodnu vako vaye bujhna sajilo hunthiyo
Why do negative essay results not always mean the molecule is absent
Answer:
The concentration of the molecule may be too low to be detected
Explanation:
Negative essay results do not always mean the molecule is absent because the amount or percentage of the molecule to be detected could be too less to detect.
What are the negative assay results?
False-negative blocks haven't received as much attention as false positives, but they can lead to misdiagnosis and improper treatment candidate selection. Based on the failure of local anesthetic infiltration to relieve the pain from facet joint capsular distention, research on 15 volunteers who had MBBs with local anesthetic or saline and capsular distention estimated the rate of false-negative blocks to be 11%.
It was determined that "aberrant innervation" was a likely explanation for some instances of unsuccessful RF denervation in IA block responders. Vascular uptake is regarded to be one of the main sources of false-negative blocks. According to reports, this can vary from 6% to 30% per level. rates of 3.9% at cervical levels, 3.5% at lumbar levels, and 0.7% at thoracic levels, according to one research.
According to one study, even if the needle is relocated when vascular uptake happens, analgesia will only be experienced 50% of the time. Digital subtraction angiography has been demonstrated to increase the detection rate and is the most reliable method of identifying vascular uptake. Failure to distinguish between procedure-related discomfort and baseline pain, as well as missing a target nerve or nerves, are other potential reasons for false-negative blocks.
Therefore, a false negative result could be the result of low concentration.
Read more about test results, here
https://brainly.com/question/15398537
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Which of the following is most likely to form when hot magma rises up as tectonic plates move apart below the ocean
1.mid-ocean ridge
2.fault
3.trenches
4.subduction zone
Answer:
A. Mid-ocean Ridge.Explanation:
A mid-ocean ridge a mid-oceanic ridges are underground mountain formed by tectonic plates.