Answer:
C. homologous chromosomes
Explanation:
Crossing over occurs between prophase I and metaphase I and is the process where two homologous non-sister chromatids pair up with each other and exchange different segments of genetic material to form two recombinant chromosome sister chromatids.
Answer:
C. homologous chromosomes
Explanation:
Crossing-over takes place between homologous chromosomes.
How is oxygen carried from your lungs into all of your cells for cellular respiration?
1. It slowly diffuses throughout your whole body from your lungs
2. It is carried by your red blood cells through your blood stream
3. Cellular respiration only takes place in the lungs, so you do not need to transport oxygen
4. Oxygen is not necessary for cellular respiration
Answer:
2. It is carried by your red blood cells through your blood stream.
Explanation:
The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell.
Match the following terms and definitions.
1. Powerhouse of the cell (___)
2. Proteins producers (___)
3. shipping and packaging center (___)
4. food and pigment storage (___)
5. transportation highway of the cell (___)
6 enzyme producers of digestion (___)
Plastics, Mitochondrion, Goldi apparatus, Lysosomes, Endoplasmic reticulum
Answer:
1. Mitochondria
2. Endoplasmic Reticulum
3. Golgi Apparatus
4. Plastids
5. Endoplasmic Reticulum
6. Lysosomes
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:
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
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What is the evidence of variation when individuals in a population or group differ in some trait of interest
Answer:
When the more dominat trait starts to show up in most of the population while keeping the specis the same. This can be very benifitial to the population or harmful depending on the trait that is getting passed down.
Explanation:
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.
look at the picture below.what does this represent
Answer:
Pro there is no picture provided : /
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
how can we apply the principle of transpiration in producing clean water?
Explanation:
Transpiration is a process that involves loss of water vapour through the stomata of plants. The loss of water vapour from the plant cools the plant down when the weather is very hot, and water from the stem and roots moves upwards or is 'pulled' into the leaves.
Answer:
During photosynthesis, the layer of TiO2 absorbs light, breaking down toxic pollutants in the water, while the gold layer emulates the transpiration of a leaf and harnesses sunlight to evaporate the water at the surface. The resulting vapor condenses into completely-purified water.
Explanation:
AUG is a start codon.
A. True
B. False
Answer:
A. True
Explanation:
Yes, the most common start codon is AUG. So, option (A) is correct answer.
shape size and any structures at the lowest magnification and record what you see under each magnification identify any cell structuresyou see
Hello. Unfortunately your question is incomplete, which makes it impossible for it to be answered. However, through the context, we can see that your question is asking you to describe the cellular structures that you can see through a microscope.
To answer this question, you will need to look at biological material under a microscope to see what cells this material has and the structures it has. To do this, you will need to determine what material you will be using. This material can be a leaf, flower, a piece of fruit, or any other material that contains cells. After choosing the material, you need to search for a protocol, a tutorial, that shows how this material can be prepared so that the cells can be visualized through a microscope. This protocol can be found on the internet and in articles. You must follow the entire protocol to the letter, to be able to identify the cellular structures.
Rocky shore and sandy shore similarities
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.
Plz help... Define the terms. a) Transpiration Pull b) Capillary C) Wilting d) Guttation
Answer:
a) the process in which a force of pulling causes the upward movement of water in the xylem vessels
b) the smallest blood vessel in the body which conveys blood between the arterioles and venules.
c) loss of turdgitdity in a plant due to excessive water loss through transpiration.
d) when water is secreted from hydathodes (small pores) on the leaf margins of plants at night .
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.
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.
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!
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.
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
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
*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.
Identify what holds DNA, the hereditary information of a cell?
(Its not the nucleus)
PLEASE HELP!
Answer:
chromatin network or chromosomes
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
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.
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
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
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 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: