Answer:
10x objective lens
Explanation:
The objective lens that will still remain in focus when placed at the longest working distance from the specimen is 10x objective lens.
Microscope objectives are set up with a short free working distance. Working distance is knot to be the point or distance from the front lens element of the objective to the closest surface of the coverslip when the specimen is in sharp focus.
The distance between the objective lens and the specimen, when the specimen is in focus, is called the working distance of the lens. The greater the magnification of the lens, the less the working distance; that isConclusively, a 10x objective lens is a low power objectives that has a longer working distances than high power objectives
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Which of the following particles has almost no mass?
O proton
O neutron
O electron
What are the characteristics of muscle?
Answer:
-It thrives during times of intense, or sustained, physical activity.
-The need for increased carbohydrates to sustain that extra level of exertion.
-It's the primary tissue in the human body with herculean strength which makes it very efficient at doing heavy work.
-It becomes rigid when it becomes depleted of oxygen, which is what causes cramping around muscles during intense bouts of exercise where you are doing something like sprinting or weight lifting too fast for your body to keep up through oxygenation alone. This is called anaerobic glycolysis - where there isn't enough oxygen present to use all the sugars being metabolized by your muscles even NEEDED by their quick contractions.
In beans, the black color of the seeds (A) dominates over the white (a). When two bean plants were crossed with black seeds, plants were obtained that formed only black seeds. Can the genotype-path of the parents be determined and why?
Answer:
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Water moves via osmosis
Answer:
Water moves via osmosis from an area with high concentration to an area with low concentration.
Explanation:
Sometimes animals have traits that don’t seem to make sense, like the long tail feathers of a peacock. Suggest a reason for traits that don’t help an animal survive. Hint: those features might help them do other things.
Some traits in animals are more to attract their mates, to reproduce, these traits increase the chances of increasing the population of that animal.
What are courtship display?Courtship display is the group of behaviors that animals show to attract their mates.
Generally, the males have bright colors and attractive features to attract females.
The behaviors are vocalization, beauty, bright colors, different types of features.
The feather of male peacocks are to attract females to have mate with them.
Thus, Some traits in animals are more to attract their mates, to reproduce, these traits increase the chances of increasing the population of that animal.
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What benefits do you see in genetic testing, if any?
What concerns do you have about genetic testing, if any?
Would you want doctor prescribed genetic testing/screening done?
Would you want voluntary genetic testing/screening done (e.g. 23 and me)?
Answer:
Genetic testing has potential benefits whether the results are positive or negative for a gene mutation. Test results can provide a sense of relief from uncertainty and help people make informed decisions about managing their health care. For example, a negative result can eliminate the need for unnecessary checkups and screening tests in some cases. A positive result can direct a person toward available prevention, monitoring, and treatment options. Some test results can also help people make decisions about having children. Newborn screening can identify genetic disorders early in life so treatment can be started as early as possible.
Explanation:
venn diagram of dna and genes
Answer:
This is my answers, Hope it helps ☺️
Myelin Sheath has a fatty layer that insulates the axon.
True OR False
Answer:
True
Explanation:
Myelin is a lipid-rich (fatty) substance that surrounds nerve cell axons (the nervous system's "wires") to insulate them and increase the rate at which electrical impulses (called action potentials) are passed along the axon. In the CNS, axons carry electrical signals from one nerve cell body to another. ...
True or false
Jupiter's volume is more than 1000 times that of Earth.
it's true Jupiter's volume is greater
Answer:
True
Explanation:
Jupiter's volume is 1,321 times larger than Earth.
Independent Variable of sentence two groups of students were tested to compare their speed working math problems
Complete the passage to describe sex-linked traits. Each person has 23 pairs of chromosomes. One of those pairs are sex chromosomes. Sex chromosomes determine the gender of an individual. The genotype for a female is and the genotype for a male is . Sex-linked traits are affected by genes on the sex chromosomes. Hemophilia is one such trait. The recessive allele causes the disorder and is carried by the chromosome.
Answer:
Complete the passage to describe sex-linked traits.
Each person has 23 pairs of chromosomes. One of those pairs are sex chromosomes. Sex chromosomes determine the gender of an individual. The genotype for a female is
✔ XX
and the genotype for a male is
✔ XY
.
Sex-linked traits are affected by genes on the sex chromosomes. Hemophilia is one such trait. The recessive allele causes the disorder and is carried by the
✔ X
chromosome.
Explanation: edg 2021
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Which organelle would not be found in a prokaryotic cell? A) nucleus b)cell membrane c)Cytoplasm d)Genetic material
Answer:
[tex]A) nucleus[/tex]
Neuron is the............unit of nervous system:
a. Morphological
b. physiological
c. pathological
d. both A & B
Neuron is called the basic unit of the nervous system because all the parts of nervous system whether it is brain or spinal cord or cranial or spinal nerves all are made of neurons.
The best explanation as to why onion cells do not burst, but red blood cells often do when placed in distilled water.
Answer:
the red blood cells have only a cell membrane, which does not protect them from bursting . the onion cells do not have a cell wall that could protect them from bursting . the onion cells have a cell membrane, which can protect them from bursting
Please for the love of lawd help.
Three pieces of evidence of universe expansion support the Big Bang Theory. The first piece of evidence, which Edwin Hubble discovered, is that_____
The second piece of evidence is the change in universal temperature. The temperature_____
The third piece of evidence is that Cosmic Microwave Background radiation is found______
:: uniformly across the universe
:: has increased dramatically
:: galaxies are moving toward each other
:: galaxies are moving away from each other
:: has decreased dramatically
1)a distant luminous object travels rapidly away from an observer.
2)Dark matter provides the gravity that allows the stars to rotate at the same speed.
3)1 galaxy is moving away from each other 2 has decreased dramatically 3 uniformly across the universe
4)1 matter 2 formations of galaxies 3 remained uniform
5)Nuclear fission takes place in the core of stars.
6)The gravity of dark matter distorts light from distant sources.
7)They both occur in the nucleus of an atom. -They both release large amounts of energy.
8)It is the proportion predicted to be present in the early universe.
8)Through dark energy, the universe is expanding at a faster and faster rate. -Because of dark matter, gravitational interactions cause galaxies to develop.
9)It verifies that the early universe was once extremely hot.
Hello, Connexus friends hopes this helps this is all the review questions + they correct cuz I got 10 out of 10 let me know if you need help!
The first piece of evidence Hubble has discovered is that galaxies are moving away from each other. The second piece of evidence is that the universal temperature has increased dramatically. The third piece of evidence is that cosmic microwave background radiation is found uniformly throughout the universe.
We can arrive at this answer because:
The Big Bang theory claims that the universe and all of its elements arose from a strong explosion.Although it is a debated and questioned theory, Edwin Hubble found evidence that proves its veracity and is accepted by many scientists.Within this evidence, Hubble claims that the universal temperature continues to increase drastically, which causes the galaxies to move away.The Big Bang was generated from a large amount of pressure and temperature, which caused the universe to expand, so Hubble's evidence may be true.Furthermore, Hubble claims that cosmic microwave background radiation is found uniformly throughout the universe and that this is a trace of the Big Bang.
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What organ takes water from food into the blood stream
Answer:
Small intestine
Explanation:
The small intestine's walls absorb water and digested nutrients into your circulation. The waste products of the digestion process go into the large intestine while peristalsis proceeds.
What is the name of a group of connected and related organisms?
A. System
B. Energy
C. Flow
D. Matter
Answer:
B
Explanation:
I think it B cause everything in the body uses energy
Answer:A
Explanation:System
Giải giúp với ạ cần gấp
Answer:
I wish I could help u but I don't understand your language :(
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explaining density, In your own words, explain what the concept of density means—without using the formula.
Answer:
Density is a physical property of an object that measures how much mass occupies a certain amount of space.
Explanation:
I did it
Answer:
Density is a function of mass and volume.
Density is related to the amount of matter in an object.
Density is dependent on how much space that matter occupies.
Explanation:
Select the answer below that correctly describes the steps of sporulation.
O a. DNA replication, formation of a double layer of membrane, cortex formation, spore release
O b. DNA replication, spore release, cortex formation, formation of a double layer of membrane
O c. Formation of a double layer of membrane, DNA replication, spore release, cortex formation
O d. Cortex formation, formation of a double layer of membrane, DNA replication, spore release
Answer:
I think that the answer is c. If not then it is probably d or a.
Which era is characterized by stromatolites as the most abundant fossil?
Mesozoic
Precambrian
Paleozoic
Cenozoic
Answer:
Precambrian
Explanation:
tromatolites were common in Precambrian time. Some of the first forms of life on Earth are recorded in stromatolites present in rocks 3.5 billion years old.
vision depends on an image to be projected onto the?
Answer:
the light-sensitive retina
Explanation:
I'm not sure if I'm right
The number of bacteria in saliva samples was determined by collecting the saliva, making serial dilutions, and inoculating nutrient agar by the pour plate method. The plates were inoculated aerobically for 48 hours at 37°C.
What can you conclude from this data? Why?
Answer:
3.7808=5c
Explanation:
According to the given data, mouthwash A decrease the growth of the bacteria in saliva due to antiseptic ingredients, B decrease the maximum, and C is the least effective.
How bacteria present in the saliva are collectively removed?In the saliva, there are some enzymes that can remove by killing certain types of bacteria, by using mouthwash it can be removed according to the efficiency of the mouthwash.
In the experiment number of bacteria in saliva samples was determined by collecting the saliva, after serial dilution, bacteria are inoculating in nutrient agar by the pour plate method, and these plates were inoculated aerobically for 48 hours at 37°C.
The complete data is attached in the image below.
Therefore, Mouthwash B > Mouthwash A > Mouthwash C is effective to remove bacteria.
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The given question is incomplete, so the most probable complete question is attached in the image.
In the Miller/Urey experiment, what are 3 reactants and 3 products?
Answer:
The experiment used water (H2O), methane (CH4), ammonia (NH3), and hydrogen (H2).
Explanation:
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True or false: competition between organisms involves both biotic and abiotic factors
true or false The cell-cycle control system operates primarily by a timing mechanism, in which the entry into one phase starts a timer set for sufficient time to complete the required tasks. After a given amount of time has elapsed, a molecular “alarm” triggers movement to the next phase.
Answer:
FALSE
Explanation:
Answer:
I'm pretty sure false
Explanation:
There are many points during the cell cycle when the process of division may stop because of a problem. Sometimes the process doesn’t stop. Summarize the function of apoptosis in the cell cycle.(1 point)
to destroy damaged or old cells
to destroy damaged or old cells
to facilitate cell reproduction before the cell cycle restarts
to facilitate cell reproduction before the cell cycle restarts
to allow the cell to rest before the cell cycle restarts
to allow the cell to rest before the cell cycle restarts
to repair damaged or old cells
to repair damaged or old cells
The function of apoptosis in the cell cycle is to destroy damaged and/or old cells. In this case, we can consider that the first answer option is the correct option.
Apoptosis is a programmed death, where the cells promote massive destruction when they "realize" that they can create problems for the organism.
This process takes place as follows:
A cell retraction begins so that the cell cannot adhere to other cells or substances.The chromatin becomes condensed.The cell membrane elongates, forming structures known as "blebs."The cell nucleus disintegrates completely.The blebs break off, forming an apoptotic body.The apoptotic body is unprotected from the action of phagocytes that can destroy the molecule.More information:
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Answer:
To destroy damaged or old cells
Explanation:
1. To destroy damaged or old cells
2. M
3. Cancer
4. Checkpoints stop the cell cycle when errors are detected.
5. G2 Checkpoint
HELPPP - Sickle cell disease is a recessive trait in humans. In a cross between parents heterozygous for sickle cell disease, what is the probability that of 6 children having 3 anemic and 3 non-anemic children?
How do you think the scientific method can be used the rate of photosynthesis?