Answer and Explanation:
Scanning Objective Lens (4x): it has a low magnifying power. It is used to make scanning scanning analyzes, can be used in conjunction with a 10x ocular lens, expanding its magnification to 40x
Low Power Objective (10x): It is efficient for analysis on glass slides and is one of the most used lenses due to its high adaptability. Provides a very close view of the user.
High Power Objective Lens (40x): It allows a much closer view because it has high power. It allows the visualization of fine and delicate details.
Oil Immersion Objective Lens (100x): provides powerful magnification, allowing many details to be observed. It can be combined with an eyepiece lens, expanding its magnifying capacity. It needs to be dipped in oil to work properly.
Answer:
Magnification abilities of each of the objective lenses are 4x, 10x, 40x, and 100x.
a) Scanning = 4x
b) Low-power = 10x
c) High-power = 40x
d) Oil immersion = 100x
Explanation:
Hope it helps:)
What Causes The Cycle Of Seasons On Earth?
The Tilt Of Earths Axis?
The Shape Of Earth's Orbit?
The Direction Of Earth's Orbit?
The Distance Between Earth And The Sun?
Your answer should be:
A. The tilt of the axisEarth's tilted axis causes the seasons. Throughout the year, different parts of Earth receive the Sun's most direct rays. So, when the North Pole tilts toward the Sun, it's summer in the Northern Hemisphere
I hope this helps!
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The Tilt of Earths axis causes the cycle of seasons on earth and is denoted as option A.
What is Season?
This is defined as a period of the year that is distinguished by special climate conditions.
This is due to the tilt of the earth axis which ensures different varying exposure of the earth to the sun thereby creating different seasons.
Read more about Season here https://brainly.com/question/13661560
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if fossils are in many different places, but only lived for a short period of time what are they considered
Answer:
index fossils
Explanation:
Answer: An ideal index fossil
Explanation: An ideal index fossil lived during a short period of time, was geographically and environmentally widespread, and is easy to identify. Some of the most useful index fossils are hard-shelled organisms that were once part of the marine plankton.
I hope this helps =3
what is the major component of Bones and the proteins that build muscles
Answer:
CarbonExplanation:
Carbon is an essential building block in the bodies of living things. For example, carbon is a major component of bones and the proteins that build muscles. And most organisms use oxygen for their life processes._____________________follow meHelp&explain
Don’t use for points or will be reported and I’ll take the points back
Answer:
They have lungs.
Explanation:
Reptiles that are currently living have lungs means they breathe through their lungs not like fishes which breathe through gills. They have dry skin and have scales on their skin. Snakes, lizards, turtles are the examples of reptiles. Some reptiles such as sea turtles and penguins are also lives in water, but they come onto land to lay their eggs and comes to the surface breathing.
When does oxygen uptake in the alveoli increase? Select all that apply. Carbon dioxide in the body decreases. Oxygen in the body decreases. Oxygen in the body increases. Carbon dioxide in the body increases.
Answer:
oxygen decreases and co2 increases
Explanation: to try to do more gas exchange
In order to establish the expiration date of perishable food, growth curve data must be collected. Once the microbial load is so high that it poses a hazard to human health, the food item is no longer considered safe (expired). Generally a microbial load of x50,000 bacteria/gram is considered unsafe.
Your task is to determine the microbial growth curves for MicroYo, a new brand of yogurt. The growth is determined by sampling the yogurt and growing the bacterial isolates in broth culture which is then serially diluted by a total of x10,000 and inoculated onto standard petri plates of nutrient agar. The following colony counts are measured:
Time (days) MicroYo colony count
1 1
4 1
12 2
16 4
20 7
a. 4.
b. 16.
c. 20.
d. 12.
Answer:
c. 20.
Explanation:
The answer is 20 because on 20 days, 7 colonies of Micro Yo occurs. The data of bacterial growth indicates that population of bacteria increases with the passage of time. This increase occurs due to good environmental conditions for bacteria that allows it to grow and increase their population. So we can say that the growth graph moves in the upward direction with the passage of time or number of days.
1. What is the best description of chromosomes by the end of anaphase II of meiosis?
A) The chromosomes split apart at the centromere.
B) The chromosomes reach opposite sides of the cell, incorporating into two haploid nuclei.
C) The chromosomes line up in the middle of the cell.
D) The chromosomes coil and become more compact.
2. What is the best description of the chromosomes by the end of metaphase of mitosis?
A) The chromosomes reach opposite sides of the cell and begin to be incorporated into two new nuclei.
B) The chromosomes separate at the centromere and begin to move apart.
C) The chromosome pairs collect in a line across the middle of the cell.
D) The chromosomes have coiled and become more compact.
3. Which phase of cell division is shown?
A) metaphase
B) anaphase
C) prophase
D) telophase
4. Which phase of cell division is shown?
A) anaphase II
B) telophase II
C) telophase I
D) prophase I of meiosis
Answers:
1. A) The chromosomes split apart at the centromere.
2. C) The chromosome pairs collect in a line across the middle of the cell.
3. B) anaphase
4. C) telophase I
1. A) The chromosomes split apart at the centromere.
2. C) The chromosome pairs collect in a line across the middle of the cell.
3. I don't see any picture?
4. Anaphase II
If mitosis happens in our gonad cells that produce egg or sperm. How will it impact the progeny's chromosome number? Emphasize also the point why is meiosis so very important.
Who understand this
Explanation:
If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92. With each new generation the number of chromosomes would double.
3. The half-life of carbon-14
is about 5600 years. A
fossil with 1/4 the normal
proportion of C4 is
probably
years
old.
A. 2,800
B. 11,200
C. 22,400
How does that landslide change the
ecosystem? Include examples of competition
of food, water, shelter, and life.
Answer:
The correct answer is - Increase in competition. destroy habitat, water and resources scarcity, and reduction in population.
Explanation:
Landslides are the movement of debris, rock, or land. It can be lethal and affects the ecosystem in various ways. The major effect on the ecosystem is destroying the resources and habitat of the organisms and even pollute water streams and water bodies with excess debris and sediment. It affects water quality and aquatic organism's habitat.
It destroys a large part of habitat such as forest, shelter and affects the life on the particular ecosystem. The reduction of the plants and vegetation leads to a reduction in food which increases the competition.
1. Light waves continue moving in a straight path until what?
2. What are the three properties of light?
3. Which property occurs when the object seems to have bent & changed directions?
4. What are the two main wave types?
5. Give an example of matter waves.
6. TRUE OR FALSE: You can hear in space.
7. Which waves travel faster, light or sound?
Answer:
2 frequency intensity wave lenghth spectrum
Explanation:
This gene segment codes for a peptide in humans.
GCTGTGTGAGGCAGA
What is the expected mRNA sequence when the gene segment is
transcribed in transgenic mice?
Answer:CGACACACUCCGUCU
Explanation:
The expected mRNA sequence when the gene segment is transcribed in transgenic mice is GCUGUGUGAGGGCAGA
What is mRNA (messenger RNA)?Responsible for transporting the information transcribed from the DNA chain. Information is transported through codons, which are sequences of three nucleotides, for example, AUG – Adenine, Uracil and Guanine.
With this information, we can conclude that the mRNA sequence expected when the gene segment is transcribed in transgenic mice is GCUGUGUGAGGGCAGA
Learn more about mRNA in brainly.com/question/12903143
what are the difference of meteor and meteorides ?
Answer:
When meteoroids enter Earth's atmosphere (or that of another planet, like Mars) at high speed and burn up, the fireballs or “shooting stars” are called meteors. When a meteoroid survives a trip through the atmosphere and hits the ground, it's called a meteorite.
What
are the observable effects of earthquake to the surface of the
Earth?
advance thanks
Answer:
Some of the observable effects of an earthquake to the surface of the earth are as follows:
- Rapid/moderate shaking of the ground
-Cracking of the ground and shifting it upwards
-Failure of the ground (landslides, lateral spreads, etc)
-Tsunamis (only occurs if the earthquake is near an ocean and is very uncommon)
Question: Will weather changes (drought/flooding) over time cause changes in the beak depth of a bird population? Write your response in space provided. Refer to the rubric at the end of the page when writing your response.
HELP ASAPPPPPPPPP THE ANSWER IS BLURED ON COURSE HEROOO!!!!!
Answer:
In times of severe drought, the average beak depth increases to handle the limited food supply. With only tough seeds to eat, a large beak is needed. Due to a large beak being needed, the small and medium beaked finches died out after 5 years as they were unable to adapt to these new conditions.
Explanation:
Answer:
help hoy sjshsu Kroos isnsus isns
2 Which part of the blood is liquid and made mostly of water?
Answer:
Your blood is made up of liquid and solids. The liquid part, called plasma, is made of water, salts, and protein. Over half of your blood is plasma. The solid part of your blood contains red blood cells, white blood cells, and platelets
Explanation:
What biome is an under water ecosystem chracterized by reef-building corals?
Answer:
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
What are the possible results of breeding a dark brown mouse with a light brown mouse?
Create a paragraph using Natural selection
Evolution
Differential reproductive success
Inherited variation
Adaptation
Traits
Population
Offspring
Survival of the fittest
Environment
Predator
Advantage vocabulary words below that explains how natural selection affected the population of peppered moths
Answer:
Follow me for the answer
Which is a type of heat transfer that causes the air at the top floor of a building to be hotter than the air at the bottom floor of a building?
•
conduction
convection
radiation
reflection
Answer:
I belive it is Convection
Explanation:
It is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of heat.
Answer:
B is correct give the credict to the person above me
Explanation:
have a nice day or night ;)
How does the use of fertilizers affect the environment?
Answer: Fertilizer can have a negative impact on the environment, because of its high nutrient content. When fertilizer enters waterways as runoff, it causes waterways to have an excess of nutrients. This excess of nutrients causes increased algae growth.
Answer:
It depends on the brand.
Explanation:
Some natural fertilizer such as animal manure or cottonseed meal are helpful and non dangerous to the Earth and environment , while harmful fertilizers that use rough chemicals actually kill living things and toxify the air and plants.
The mother is heterozygous for type A blood and the father is heterozygous for type blood B. Use alphabets to answer the question, when required.
a. What is the genotype of the father? ______
b. What is the genotype for mother? __________
c. What is the probability of inheriting genotype O in the offspring? ___________
d. What is the probability of inheriting genotype A in the offspring? _____________
PLEASE HURRY!!!!
When you have corresponding DNA sequences that comes from separate parents; one
from the mother and the other coming from the father... these are called _______________
That is why we have a pair for each chromosome.
Describe the contributions made by various scientists to the discovery of the structure of DNA that we have discussed in this class
Im not in your class so i dont knoww. If your more explanatory i will help
Answer:
Since you didn't list the scientists, what you can do is look up contributions made by "scientist name"
good luck, i hope this helps :)
Rates of heritable mutations are lower in multicellular
organisms because only germ cell mutations heritable.
TRUE
FALSE
Several genes in humans in addition to the ABO gene (I) give rise to recognizable antigens on the surface of the red blood cells. The Rh marker is determined by positive (R) and negative alleles (r) of gene R, where R is completely dominant to r. The presence of M and N surface markers are controlled by two codominant alleles of gene L (LM and LN). For each mother-child pair, choose the father of the child from among the males in the right column. (Assume that all mothers and fathers are HH.)
Complete question:
You will find the mother-child pairs and the possible genotypes of the fathers in the attached files.
Answer:
Father 1: IBi LMLN RRFather 2: IBi LMLN RRFather 3: IAIA LMLN RRFather 4: IBi LMLN RRFather 5: IAi LMLN rrExplanation:
Due to technical problems, you will find the complete explanation in the attached files
What is a dichotomous key
Answer:
A dichotomous key is a tool that allows the user to determine the identity of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. Keys consist of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts"
Explanation:
From which molecules do organisms get energy to perform daily activities
Answer:
Carbohydrates
Explanation:
The result of photosynthesis is the production of sugar molecules knowns as. carbohydrates. carbohydrates are. energy rich molecules which organisms use to carry out daily activities. as organisms consume food and use energy from carbohydrates, the energy travels from. one organism to another.
please pick the right option
Members of the tropical tree genus Ceiba currently grow in the rainforests of the Amazon. A paleontologist discovers several fossils that she attributes to this genus in the Pampas region of Argentina. This region is not currently covered with tropical rainforests. She concludes based on these fossils that this region of Argentina was covered with tropical rainforests in the past. This form of reasoning is known as
Complete question:
Members of the tropical tree genus Ceiba currently grow in the rainforests of the Amazon. A paleontologist discovers several fossils that she attributes to this genus in the Pampas region of Argentina. This region is not currently covered with tropical rainforests. She concludes based on these fossils that this region of Argentina was covered with tropical rainforests in the past. This form of reasoning is known as:
A.
Deduction.
B.
Induction.
C.
Abduction.
D.
A random guess.
Answer:
This form of reasoning is known as Deduction (Option A)
Explanation:
Induction: Might be defined as a process of initiation in something, such as a religion, a new job, a new activity, a new curse, etc.
Abduction: Refers to the illegal act of taking someone somewhere by obligation or by force, against the person´s will. Also refers to the body´s extremities movement.
A random guess: Refers to a random conjecture about something, with no basis or fundaments.
Deduction: The fact of answering a question or reaching a conclusion based on evidence or fundaments. Usually after a process of investigation or study, and knowing the facts.
The exposed situation is an example of a deduction made by the researcher. She bases her conclusion on the fact that Pampa´s fossils might be of the same genus as Amazonia´s trees, which means that in Argentina the environmental and climatic conditions were comparable to those in current Amazonia. Also, as a paleontologist, she must know about the biogeographic processes that modeled the earth and living beings. Her conclusions are not random. She has bases and fundaments to conclude that Argentina was once covered with tropical rainforests in the past.