Answer:
d
Explanation:
ACTIVITY 2: NOW I KNOW!
Directions: Complete the paragraph using the word pool provided. Write the word in your long pad.
MIRROR
OBJECTIVES
PENCIL
MAGNIFICATION
EYEPIECE
INVERTED
GLASS SLIDE
COVER SLIP
10X
FIELD OF VIEW
40X
UPWARD
The microscope is an essential tool in Biology. It provides us with important data on specimens being examined.
The (1) has various magnification (5x, 10x, 12.5x, 15x) which attaches to the body tube. On the other hand, the
revolving nose piece are attached by (2) with 10x, 40x and 100x magnifications.
In preparing a wet mount, place the specimen in a (3)
add a drop of water and cover it with a (4)
Tap the cover slip with the eraser-end of a (5)
to reduce the formation of the bubbles.
Look at the eyepiece and adjust the (6) to find the (7) of the microscope which is the bright circle
of light. The (8)
of specimen is computed by multiplying the magnification of the Eyepiece with the
magnification of the Objectives. If the eyepiece has a magnification of 10x and the Objective has (9)
then
the specimen's magnification is 400x. In addition, turning the stage knob upward will result to moving the specimen as
seen in the microscope downward while turning the stage knob to the left will move the specimen to the right as seen
under the microscope. Finally, the specimen when seen under the microscope appears (10)
Answer:
The correct answer would be -
1.) objectives
2.) eyepiece
3.) glass slide
4.) coverslip
5.) pencil
6.) mirror
7.) field of view
8.) magnification
9.) 40x
10.) inverted
Explanation:
Objectives of the microscope have magnification (5x, 10x, 12.5x, 15x) which attaches to the body tube. The nosepiece is found between the stage and the eyepiece or ocular lens. Glass slide is the slide where a specimen is placed for the study and covered with a coverslip, bubble should be avoided while placing the coverslip.
Mirrors need to adjust to seeing the field of view by adjusting the light. After computing the magnification there would be a final image of the specimen that would be inverted due to the two lens used here.
how did humans cause the bee population to decline.
Answer:
pesticide use, urbanization
Explanation:
just to name a few
How many times longer is DNA than it is wide?
Answer:
About 200 km 7.
DNA is approximately six times longer than it is wide after measurements.
DNA is a 2-nanometer-diameter double-stranded molecule. Rise per base pair is 0.34 nanometers. Divide length by width to calculate length-to-width ratio. The length-to-width ratio is 6:1 due to DNA's stable diameter and base pair distance. DNA is six times longer than broad.
DNA stores and encodes genetic information efficiently in this elongated shape. DNA molecules can range from a few hundred base pairs in bacterial genomes to millions or billions in sophisticated animals. DNA stores and transmits life's genetic blueprints because it's longer than it is wide.
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domain eukarya is different from domain prokaryotes and archaea because all the cells in domain eukarya have ______; domain archaea and prokaryote don't because they are prokaryotic cells
Which of these is the most likely impact of solar prominence on Earth?
Improvement in satellite communication
Increase in severity of hurricanes
Loss of electrical power generation
Stronger GPS satellite signals
Answer:
Loss of electrical power generation.
Explanation:
This is because some prominences break apart and may then give rise to coronal mass ejections, which will cause far more damages to the electrical power being used on earth.
Answer: for all my Flvs students the answer is
LOSS OF ELECTRICAL POWER GENERATION
Explanation:
what does the theory of evolution state
Answer: In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species? are related and gradually change over time
Explanation:
Create cladograms for the primates and animals groups (skip the Artiodactyla for now). These Claudio grams are a little more complex and you may have to include multiple branches at the same level such as in the example shown at the right. When you had built Cladograms with the lowest possible parsimony score compare them to the accepting Cladogram
Answer:
b
Explanation:
What are several reasons why apoptosis happens
Answer:
There are several reasons: it gets rid of cells that are not needed, in the way or potentially dangerous to the rest of the organism. "Cells that are not needed may never have had a function. In other cases, they may have lost their function, or they may have competed and lost out to other cells.
Explanation:
please answer this my friend needs help and I want to help her
Answer:
d
Explanation:
II. Use the diagram below to answer the following questions.
rat
Plant
insect
mice
snake
1. Which converts light energy to chemical energy?
2. Among the animals, which will have the least energy?
3. Which is the secondary consumer?
4. Which is herbivore?
5. Which organism will have the greatest energy?
Answer:
ans:chlorophyll,insect,
Why do we need friction in our world?
Friction is a force that works against motion. While walking, friction helps us maintain our stability and prevents us from slipping. Friction also works the same way with cars and vehicles in general, preventing them from skidding and helping them stop when the brakes are applied. We also need friction to make a fire.
Without friction between the shoes and the ground, you cannot walk properly. If there is no friction, all of us would be sliding around without any control over ourselves. While walking, you're pushing your foot back as you try to step forward. Friction holds your shoe to the ground so you can walk around.
Qual a vantagem um organismo multicelular apresenta sobre um unicelular?
Answer:
Grande em tamanho, estrutura mais complexa e especialização celular.
Explicação:
As principais vantagens de um organismo multicelular em relação a uma única célula são seu grande tamanho, estrutura mais complexa e especialização celular. Os organismos multicelulares têm grande tamanho devido à presença de um maior número de células em comparação com o organismo unicelular, que é composto por apenas uma célula. Eles têm uma estrutura corporal complexa que é organizada para formar tecidos, órgãos e vários sistemas de órgãos do corpo. Eles também têm a habilidade de especialização celular, na qual células específicas têm que realizar tarefas específicas no corpo.
2. The red-tailed hawk and the great horned owl occupy similar habitats and prey on similar species. Which fact
hest explains how they are able 4 coexist in the same ecosystem?
Both the hawk and the owl can be found hunting at twilight.
Neither the hawk nor the owl have any natural predators.
© The great horned owl nests in the same types of trees as red-tailed hawks.
The hawk hunts primarily during the day, but the owl hunts primarily at night.
Answer:
The hawk hunts primarily during the day, but the owl hunts primarily at night.
Explanation:
Because they hunt during different times, there is no interference.
Explain how ions, such as phosphate ions, are absorbed by plant roots.
Answer:
Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption
Explanation:
....
Phosphate ions are absorbed by plant roots through the process of active transport, which requires energy and specialized transport proteins.
What is active transport?Plant roots absorb ions such as phosphate ions through a process called active transport. Active transport is the movement of ions or other molecules across a cell membrane against their concentration gradient, from an area of low concentration to an area of high concentration, which requires energy in the form of ATP.
To absorb phosphate ions, plant roots use specialized membrane proteins called phosphate transporters, which are located in the plasma membrane of root cells. These transporters actively pump the phosphate ions from the soil into the root cells, using the energy from ATP hydrolysis. The phosphate ions can then be transported throughout the plant via the xylem vessels and used for various biological processes, such as DNA and RNA synthesis and energy storage.
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When summarizing the process of transcription in a cell as a gene is used to build a polypeptide, which of these statements accurately reflects the process of transcription? You may choose all that apply.
Answer:
This question lacks options, the options are:
A) An mRNA molecule is produced in the nucleus of the cell.
B) The ribosome attaches to the DNA to build a polypeptide
C) The resulting RNA molecule is a complement of the gene on the DNA.
D) The RNA molecules contains three nucleotides in a row whose bases form
a codon.
E) A polypeptide is synthesized based on the sequence of nucleotides on the tRNA molecule.
The answers are A, C and D
Explanation:
Transcription is the first process of gene expression whereby a mRNA is synthesized from a DNA template. Transcription, which occurs in the NUCLEUS, takes place in three stages namely: initiation, elongation and termination.
- Initiation involves the attachment of RNA polymerase to the DNA molecule, inducing the unzipping of the double stranded DNA.
- Elongation involves the synthesis of RNA strand by adding complementary nucleotides based on the ones read on the DNA strand.
- Termination signals the end of the transcription process.
Based on this question and the above explanation of the transcription process, the following pertains to transcription in the nucleus:
- mRNA molecule is produced in the nucleus of the cell.
- The resulting RNA molecule is a complement of the gene on the DNA.
- RNA molecules contains three nucleotides in a row whose bases form a codon.
Why do some electromagnetic waves have more energy than others?
Answer:
For electromagnetic waves, speed is constant, so waves with a high frequency and a short wavelength (like X-rays) are the most energetic. For all waves, a greater amplitude means more energy
Explanation:
Gamma rays have the maximum energy on the electromagnetic spectrum, while long radio waves have the lowest. In addition to visible light, the sun also radiates infrared (IR) and ultraviolet (UV) energy. A narrow range of wavelengths, from 380 nm to 750 nm, are covered by the visible portion of the electromagnetic spectrum.
What about electromagnetic waves?The electric field will change as the magnetic field changes, and vice versa.Electromagnetic waves, as opposed to mechanical waves, can move across empty space.From highest to lowest energy, the components of the electromagnetic spectrum are referred to as gamma rays, X-rays, UV radiation, visible light, infrared radiation, and radio waves. Electromagnetic waves, which have varying wavelengths from one another, include radio waves, microwaves, visible light, and x-rays. The wavelengths are (a) longer; (b) shorter.All electromagnetic waves are transverse waves that can pass through a vacuum and travel at the same speed—300,000,000 times the speed of light—while doing so.The longest wavelengths are found in gamma rays. The electromagnetic spectrum's greatest frequency is found in gamma rays. They oscillate between 1020 and 1022 HzGamma Rays are the right response.Learn more about electromagnetic waves here:
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what is the function of the structure identified by the red arrow?
Santorini, Greece is a unique island. It was formed by a volcanic explosion
A. True
B. False
How long does it take you to drive 500ft?
Answer:
at what speed are you going?
What is the control of conditions inside the body called
Answer:
Homeostasis
Explanation:
Conditions inside our body must be very carefully controlled to function effectively.
I guess Homeostasis
Explanation:
The condition inside our body must be very carefully it the body is to function effectively. Homeostasis is the maintenance of a constant internal environment
all you need is in the photo
ASAP
Answer: the first one
CCU is Proline (pro)
GAG is Glutamic Acid (glu)
AAG is Lysine (lys)
Explanation:
List three ways in which
mitochondria and bacteria are
similar.
Answer:
1.The inner folds of the mitochondrial membrane, cristae, are very similar to mesosomes found in bacteria.
2.Electron transport chain is found in the plasma membrane of both bacteria as well as the mitochondria.
3.Ribosomes found in bacteria and mitochondria are 70S in size
What is used to cut the chromosome open?
Answer:
Restriction enzymes
Explanation:
When a virus or bacterium is used to transfer a piece of foreign dna to host cell it’s known as a
A. Vector
B.transgenic
C.clone
D. Hybrid
What are three sub-zones biosphere?(lithosphere (rock part) Atmosphere (air part) and hydrosphere(water part).
There is no question like that XD u suck
How do seeds germinate?
HELP NOW
Seeds remain dormant or inactive until conditions are right for germination. All seeds need water, oxygen, and proper temperature in order to germinate. ... Then the seed coat breaks open and a root or radicle emerges first, followed by the shoot or plumule that contains the leaves and stem.
whats the structure of cerebrospinal fluid
Answer:
Cerebrospinal fluid (CSF) is a clear, colourless ultrafiltrate of plasma with low protein content and few cells.
Explanation:
The CSF is mainly produced by the choroid plexus, but also by the ependymal lining cells of the brain's ventricular system.
during the process of cellular respiration, energy is released from(1)Carbon dioxide (2) Oxygen atoms(3)Water molecules (4) chemical bonds
Answer:
4) Chemical Bonds
Explanation:
suggest one advantage of the police keeping a DNA database? (1 mark)
Answer:
To confirm DNA found at crime sites to help predict the true identity of the true perpetrator so that an innocent person is not charged
Explanation:
What does it mean if an object is moving on?