Answer:
I guess the answer is a scanning electron microscope
The microscope that contains multiple objective lenses, creates a 2-dimensional image of the specimen being viewed, has a light source located below the specimen, and can be used to view both living and non-living specimens is compound microscope. The correct option is B.
What is a compound microscope?Compound microscopes are a type of light microscope that uses a light beam to perceive samples.
The compound microscope does indeed have two ocular lenses as well as numerous objective lenses with varying magnification levels.
Based on the definition in this question, a compound microscope produces a two-dimensional image of the specimen under examination.
A compound microscope is customarily used to view samples at high magnification, which is accomplished through the combined effect of two sets of lenses: the ocular lens and the objective lenses.
Thus, the correct option is B.
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cellular activity across a cell membrane
Answer:
The plasma membrane is a selectively permeable barrier between the cell and the extracellular environment. Transport of such molecules and ions across all cellular membranes is mediated by transport proteins associated with the underlying bilayer.
Explanation:
pls help
Molecules move in and out of a cell by DIFFUSION. The picture shows a cell and molecules both inside and outside the cell. How will the molecules in this illustration move as a result of diffusion?
Answer:
They will move into an external environment
Explanation:
I had this question on my test last week
WILL GIVE BRAINLIEST!!!!!!
An amino acid is to a polypeptide as:
glycogen is to glucose.
testosterone is to a steroid hormone.
a phospholipid is to a plasma membrane.
a nucleotide is to a nucleic acid.
Inherited genetic variations are caused and influenced by environmental factors only. Factors like an organism’s habitat conditions and behavior can affect variation within a population. PLEASE EXPLAIN HOW ENVIRONMENTAL FACTORS EFFECT GENETIC VARIATION! WILL MARK BRAINLIEST!!
Answer:
Genetic variation among plant populations often occurs along different climatic gradients, such as temperature and precipitation gradients. Environmental factors are often responsible for the patterns of genetic structure observed at small spatial scales
Explanation:
Help please, I know the explanation but I need the answer.
Answer:
B
Explanation:
Why is the earth considered a magnet? What is a permanent magnet? describes an electromagnet
Answer: *See Explanation*
Explanation: The earth's core "generates" its own magnetic field....so it is considered a magnet. A good example of a "Permanent Magnet" would be the Earth's crust. Not the crust itself, but the effect it causes. A "Electromagnet" is made by passing electric currents through a coil surrounding it. (I know, it's a bit confusing.) Check other sources if it is too confusing.
when was uranus discovered
Answer:
at ur mom
Explanation:
Which type of fossils is MOST helpfu
in understanding what the climate w
like for a region in the past?
A.fossils of plants
B. fossils of microorganisms
C. fossils of birds
D. fossils of animals
Answer:
I would say A). The animals in an area can fluctuate and diversify, while plants can't move and will die if conditions are too intense, leaving only the ones accustomed to the climate to survive.
After intense activity, your muscles feel sore because of
the accumulation ofNAD+ B-
the accumulation of ATP
C- the accumulation of lactic acid D- the accumulation of carbon dioxide
Answer:
After intense activity, your muscles feel sore because of _____. a) the accumulation of NAD+ b) the accumulation of lactic acid c) the accumulation of ATP d) the accumulation of carbon dioxide. B. ... ATPc "carbon planet," because carbon is the central element in organic compounds. ... After intense activity, your muscles feel sore because of a. the accumulation of NAD+. b. the accumulation of lactic acid. c. the accumulation of ATP. d. the accumulation of carbon dioxide. b. the accumulation of lactic acid.
Explanation:
srry if this dosent help
Does anyone know what this is?
i can't im so sorry
-_-
Analyze the document "King Andrew the First (c. 1833)” by explaining its "HIPP” (historical context, intended audience, author’s purpose, and author’s point of view). Refer to elements in the image to explain your response.
Answer: Andrew Jackson was a strong president. He used the office to forcefully pursue his agenda. This cartoon is quite famous, coming out around 1833, because of the 1833 removal order. In the cartoon, the president can be seen holding a veto in his hand, and standing on top of the Constitution. He is dressed up as a king, holding - perhaps - too much power. I believe that the intended audience was the people. The people saw him as a king, abusing his powers as a president. The author’s purpose was to show how people truly viewed him. The president’s order to remove federal deposits from the Bank of the United States led to an increase in state debt. The President was strongly criticized because he acted without congressional approval, as a king would.
Explanation: I don't recommend copying word per word, but hopefully this gives you a good start. Add anything you feel you need to, and good luck. You've got this. :3
The analysis of the document "King Andrew the First (c. 1833)” is as follows:
Historical context
It was created during the 1833 removal orderIntended audience
The American publicAuthor's purpose
To show that people truly believed in himAuthor's point of view
First personPresident Andrew Jackson was an enigmatic and strong personality during his tenure as President of the United States of America.
As a result of this, there was a cartoon which was created to help further his agenda. In it, he is depicted holding a veto power on top of the Constitution, while dressed in royal attire.
He wanted to show that he was a man of the people but it was viewed as a person who was wielding too much power than was suitable for a president as he occasionally acted without congressional approval.
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(No Wrong Answers Please.)
Answer:
llslslsksskwnnnnwjjsksieieiii3i3ii3i3i3ii3i33i
Answer:
I think its D
Explanation:
(sorry if its wrong)
Cell biologists studying the mobility of plasma membrane proteins fused mouse and human cells together, creating a heterokaryon. They then examined the localization of mouse and human proteins over time. Initially the mouse and human proteins were restricted to separate halves of the heterokaryon. Over time the mouse and human proteins mixed, with each protein eventually being present over the entire cell surface, consistent with proteins being able to move within the plane of the membrane. What techniques could have been used to examine the locations of the mouse and human membrane proteins
Answer: Fluorescence microscopy
Explanation:
A protein is substance that is the essential constituent of living cells because it forms part of its structure. They are also found in plasma membrane, where they assist substances to cross the membrane. Proteins can be:
Integral: permanently attached within the plasma membrane.Transmembrane: it spans the entirety of the cell membrane.Peripheral: are only temporarily associated to the membrane.Some integral proteins can act as cellular receptors. Other proteins are responsible for cell adhesion (binding of a cell to another cell or to a surface). On the outside of the cell membranes, attached to other proteins, are the carbohydrate chains that act as labels identifying the type of cell.
A heterokaryon is a multinucleate cell and in this experiment the scientists fuse a human cell and a mouse cell, each of them will have their own proteins. At first, the human and mouse proteins where found in separated halves of this heterokaryon. But after a while, those proteins where mixed and could no longer be identified.
A fluorescent chemical called a fluorophore is able to be absorb light of specific wavelengths and then emit light of longer wavelengths. The proteins can be modified and marked with different colored fluorophores to detect them, even if they are mixed in the heterokaryon. Then, they can be seen with a Fluorescence microscopy, to identify them through different colors.
What are some adaptations that help animals live in the alpine biome survive
Hii!! The correct answer is: They hibernate, migrate to warmer areas, insulate their bodies with fat and fur, and tend to have shorter legs, tails, and ears in order to reduce heat loss. (:
The following question's answers are:
Describe the weather conditions that characterize the chaparral biome.
hot and dry summers
mild winters
most rain comes in winter
which chemical formula would a drought effect and how?
Answer:
Drought often reduces the sugar content in lignocellulosic biomass, which could have economic impacts, particularly when compounded with ...Explanation:
Mitochondria require glucose to convert ADP to ATP. Which of the following statements describes how ADP is converted into ATP?
A. ADP loses a phosphate group which stores energy for use by the cell.
B. ADP gains a phosphate group which stores energy for use by the cell.
C. ADP loses a phosphate group which releases energy for use by the cell.
D. ADP gains a phosphate group which releases energy for use by the cell.
Answer:
B. ADP gains a phosphate group which stores energy for use by the cell.
Explanation:
ADP is converted to ATP for the storing of energy by the addition of a high-energy phosphate group. The conversion takes place in the substance between the cell membrane and the nucleus, known as the cytoplasm, or in special energy-producing structures called mitochondria.
The statement that describes how ADP is converted into ATP is as follows:
ADP gains a phosphate group which stores energy for use by the cell.Thus, the correct option is B.
What is ATP?ATP stands for Adenosine triphosphate. It may be defined as an organic compound that delivers energy to operate many processes in living cells, such as condensate dissolution, muscle contraction, nerve impulse propagation, and chemical synthesis.
ATP is considered a high-energy compound that furnishes immediate energy to the cell for metabolic activities.
ADP gets converted into ATP by gaining one phosphate group which is the most potent high-energy phosphate. This conversion of ADP to ATP generally takes place in the cytoplasm or in the membrane-bound cell organelle known as mitochondria.
Therefore, the correct option for this question is B.
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Identify the phase of mitosis described in each step, and then put the steps in the correct order.
Which type of seed do you think the ground finches preferred? Why do you think this?
Answer: soft seeds
Explanation:
Tiny, soft seeds that are easy to crush are preferred by the medium ground finch to feed. During droughts, however, they often consume the larger seeds on the island when small seeds are not as available.
Which of the following could NOT be a sequence of DNA?*
1.AUG
2.CAT
3.TAC
4.GCC
Answer:
cat
TA
CG
think of it as tree and Apple, car and garage
Explanation:
hope this helps :]
Name the enzymatic reactions that turn a large substrate into two or more smaller products
Answer:
you have a question you can ask
Answer:
sugar
Explanation:
it among the amino acids
Imagine you are a world famous primatologist, a scientist who studies primates. An
unidentified, complete fossil skeleton arrives at your lab. You suspect that it's a primate
fossil. What observations would you make to determine if your suspicions are accurate?
Match the following enzymes involved in DNA replication with their functions.
a. DNA ligase
b. DNA polymerase
c. DNA gyrase
d. helicase
Answer:
DNA ligase is an enzyme which can connect two strands of DNA together by forming a bond between the phosphate group of one strand and the deoxyribose group on another.
DNA polymerase is an enzyme that synthesizes DNA molecules from deoxyribonucleotides, which are the building blocks of DNA. The enzymes play an essential role in DNA replication, usually working in pairs to produce two matching DNA stranges from a single DNA molecule.
DNA gyrase is an essential bacterial enzyme that catalyzes the ATP-dependent negative super-coiling of double-stranded closed-circular DNA
Helicases are enzymes that bind and may even remodel nucleic acid or nucleic acid protein complexes. There are DNA and RNA helicases. DNA helicases are essential during DNA replication because they separate double-stranded DNA into single strands allowing each strand to be copied.
Explanation:
DNA ligase seals the fragment, DNA polymerase adds a new nucleotide, DNA gyrase unwinds the DNA, and helicase makes a dent in double helix.
What is DNA replication?DNA replication is the physiological method that generates two identical replicas of DNA from a single original DNA molecule in molecular biology.
DNA replication takes place in all living organisms and is the most important component of biological inheritance.
Helicase, primase, DNA polymerase, and ligase are the four main enzymes that aid in DNA replication.
Many proteins and enzymes play a role in DNA replication, including: Topoisomerase: This enzyme relaxes the super-coiled nature of DNA. Helicase: Helicase is a protein that separates the two strands of DNA at the replication fork.
The fragment is sealed by DNA ligase, a new nucleotide is added by DNA polymerase, the DNA is unwound by DNA gyrase, and a dent in the double helix is made by helicase.
Thus, this can be the match for the given scenario.
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some brightly colored rain forest frogs are very poisonous. their toxins can be so deadly that an amount equal to three grains of salt can kill a 150 pound human. Desert cacti have spines instead of leaves. one species has sharp has sharp spines three times longer than the body of cracti. These structural adaptations most likely help rain forest frogs and Desert catic to survive by aiding in which life function
A. reproduction
B. catching prey
C. conserving energy
D. avoiding predators
In raindeer black noses B are dominant over red noses b and walking domabst W over fly w. Cross 2 heterozygous reindeer ? What are the possible phenotypes and ratios?
I got BW, Bw, bW, and bw
you should be able to get all the possible traits because both of them are heterozygous.
The Tissues of vascular Plants are organized into more complex structures that carry out a Variety of functions in the plant what structure is formed by a Group of tissues that work together to carry out a Specific function
A) Cell
B) Organ system
C)Organism
D Organ
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All
atomic number
Element
electron
three
balloons
proton
carbon
neutron
two
same
Atoms are the basic building blocks of all matter. It was once thought that an atom was the smallest particle of matter but
scientists discovered that there are smaller subatomic particles that make up the atom. There are drag and drop answer here basic subatomic particles:
the drag and drop answer here, the drag and drop answer here, and the drag and drop answer here the number of protons is called the
drag and drop answer here. The proton is the particle that is used to identify the drag and drop answer here. Every element has a specific number of
protons. No two elements will have the drag and drop answer here number of protons. For example: an atom that has six protons will be a
drag and drop answer here atom, drag and drop answer here carbon atoms will have six protons. If you have an atom that has drag and drop answer here
protons, you have an atom of helium (like the gas that we fill drag and drop answer here with). No other element will have two protons.
( Atoms) are the basic building blocks of all matter. It was once thought that an atom was the smallest particle of matter but
scientists discovered that there are smaller subatomic particles that make up the atom. There are (Three) basic subatomic particles:
the (proton), the (neutron), and the (electron) the number of protons is called the (atomic number) . The proton is the particle that is used to identify the (element). Every element has a specific number of protons. No two elements will have the (same) number of protons. For example: an atom that has six protons will be a (carbon) atom, (All) carbon atoms will have six protons. If you have an atom that has (two) protons, you have an atom of helium (like the gas that we fill (balloons) with). No other element will have two protons.
Explanation:
you're welcome and make sure to give me 5 stars bye bye
DNA is needed to create mRNA.
True
False
Answer:
False
Explanation:
Because i am mart
PLEASE HELP QUICK!!!
How is earths surface most likely to change as the water freezes and expands on a mountain side over time?
Erosion will cause the ice to crack the rock
Physical weathering will cause the ice to crack the rock
Chemical weathering will cause the water to dissolve the rock
Disposition will cause the water to break the rock into sediment
The earths surface most likely to change as the water freezes and expands on a mountain side over time because Physical weathering will cause the ice to crack the rock.
What is soil erosion?Erosion is nothing more than the displacement of land that happens from one place to another. In nature, the erosive process occurs by the natural action of the sun, winds and, mainly, rainwater.
It is a natural procedure, however, human action contributes to its intensification. The uncontrolled erosion process causes great damage to the environment, as it acts on the wear of the soil, makes it difficult to maintain species of animals and plants, in addition to disrupting human activities.
In this case, Erosion involves the wearing down, transport and deposition of soils and rock particles. So, the Physical weathering will cause the ice to crack the rock.
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Which statement correctly describes two organ systems working together when the body increases its movement?
A
B
The excretory system releases extra waste, and the digestive system breaks down nutrients quickly to replace the waste,
The digestive system breaks down nutrients quickly, and the respiratory system delivers the nutrients to the working muscles,
The respiratory system increases gas exchange, and the circulatory system circulates blood faster to deliver oxygen to muscles,
C
D
The circulatory system picks up more carbon dioxide waste from the muscles, and the excretory system releases the carbon dioxide,
Answer:
d. the circulator system picks up more carbon..........
Kelvin's cow is showing signs of poor health. The cow is staying away from the herd and not alert in its environment. The veterinarian believes
that the cow is affected by some type of infection. He also states that the lack of white blood cells in the cow is making it less resistant to the
infection. Which system of Kelvin's cow is not functioning properly?
ОА
muscular system
OB
endocrine system
Ос.
nervous system
OD
circulatory system
Answer:
D. circulatory system
Answer:
D. circulatory system
Explanation: