You are working in a lab trying to identify a single celled organism. You are not
sure if it is a Protist or a Moneran (Eubacteria or Archaebacteria). What test
would be most useful to determine its identity?
A. Put it in the sun and measure the oxygen levels
B. Determine if it is motile
C. Test its cells for chitin
D. Determine if it has a nucleus
Answers
The test that will be most useful to determine the identity of the single-celled organism is to "determine if it has a nucleus".
DIFFERENCE BETWEEN A PROTIST AND MONERAN:
A protist is a member of the kingdom protista characterized by it's single cells and eukaryotic nature.
On the other hand, a MONERAN is a member of the kingdom MONERA and characterized by it's unicellular and prokaryotic nature.
The major difference between Monera and protista is their prokaryotic and eukaryotic cells respectively. Prokaryotic cells do not have a membrane bound nucleus while an eukaryotic cell does.
Since the major difference between Monerans and protists is their possession of a membrane bound nucleus, the identity of the single-celled organism is to "determine if it has a nucleus".
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Related Questions
What biotic factors might affect a population of fish? Check ALL that apply.
predators
prey
light
bacteria
Answers
Answer:
Explanation: Abiotic factors for fish is water, temperature, amount of dissolved oxygen in water, etc. Penetration of sunlight is also important in fresh water habitat. Biotic factors are predators, disease causing organisms, organisms available as food, population density of competitors, etc.
Explanation:
Which organism cannot perform asexual reproduction?
humans
fungi
earthworms
potatoes
Answers
Answer: Humans
Explanation:
They perform sexual reproduction.
6B(SCIENCE) (6BB OOB)
4
What is the difference between evaporation and boiling? *
(1 Point)
A) There is no difference - they are exactly the same.
B) Evaporation, unlike boiling, occurs at all temperatures.
C) In evaporation, unlike in boiling, there is no state change.
D) In boiling, unlike in evaporation, the liquid volume reduces.
This question is required.
Answers
How does climate change contribute to the increase of the rate of diseases
Answers
How does the force of gravity move objects in the solar system?
Answers
Answer:
One of the most noticeable effects of gravity in the solar system is the orbit of the planets. The sun could hold 1.3 million Earths so its mass has a strong gravitational pull. When a planet tries to go past the sun at a high rate of speed, gravity grabs the planet and pulls it towards the sun
Explanation:
Which is true of prokaryotic and eukaryotic cells?
Eukaryotic cells do not have nuclei, and prokaryotic cells do have nuclei.
Eukaryotic cells are simpler than prokaryotic cells.
Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.
Prokaryotic cells are larger than eukaryotic cells.
Answers
Explanation:
the answer to this question is prokaryotic cells lack memebrane bound organelles and eukaryotic cells contain membrane bound organelles
A frog that is dominant for its light green color mates with a brown frog and produces one small brown frog. How is this possible if the green color is dominate?
Answers
Answer:
The dominant (light green) parent was heterozygote for the trait
Explanation:
According to Gregor Mendel in his law of dominance, an allele is said to be DOMINANT if it masks the phenotypic expression of another allele in a gene. The allele being masked is called RECESSIVE allele. In this case of a frog whose allele for light green color is dominant over the allele for brown color, the light green color allele (G) is dominant while the brown color allele (g) is recessive.
However, in a cross between that have light green frog and a brown frog, a small brown frog is produced. This is possible despite the green color being dominant because the genotype of the light green dominant parent is HETEROZYGOUS i.e. it contains both light green (dominant) allele and brown (recessive) allele.
Hence, when a gamete with recessive allele (g) is produced by the heterozygous light green frog (Gg), it mates with a recessive allele from the brown frog (gg) to produce a brown offspring (gg).
what is not a main principle of the cell theory?
a-cells are the basic unit of structure and function in living things
b-new cells are produced from existing cells
c-all cells enclose their DNA within a nucleus
d-all living things are made of cells
Answers
Answer: c not all cells have a nucleus (prokaryotic cells don’t)
Explanation:
Plz help me I'll give branly stuff. plzzzzz
Answers
Answer:
The answer is B
help me! i'll mark brainliest! overdue assingment!
Answers
Answer:
Part A: Fossil Evidence
Part B: Biogeographical Evidence
Part C: Anatomical Evidence
Explanation:
plz thank it
Answer:
Here u go I hope this can help u!!
Explanation:
There are five lines of evidence that support evolution: the fossil record, biogeography, comparative anatomy, comparative embryology, and molecular biology.
If the cell cycle lasts 36 hours and mitosis takes 25% of the cell cycle, how many hours will the cell be in mitosis?
Answers
(P+M+A+T) — the sum of all cells in phase as prophase, metaphase, anaphase and telophase, respectively; N — total number of cells.
Mitototic index (MI) is 3/25000 x 100 = 1.2 %
From the cell cycle, 1.2% is mitotic and the rest will obviously be interphase.
So, 1.2% is 30 minutes, so 100% (length of total cell cyle) is 2500 minutes (42hours).
I hope this helped you.
2. Which of the following is a physical property of matter that is always the same regardless of size
or amount?
A. Mass
B. Volume
C. Density
D. Solubility
HELP
Answers
Answer:
A
Explanation:
Since the law of conservation of mass is valid under all circumstances, hence, mass always remains the same, whether a substance undergoes physical change or chemical change
structures in the cell
Answers
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
Which cell structures work together to get and use energy?
Answers
Answer:
The Mitochondria
Explanation:
Answer:
The cell wall and the chloroplasts.
Explanation:
The chloroplasts help generate energy in the plant cells.
17. What causes evaporation?
O Air that is unsaturated with water vapor comes into contact with the surface of the water
O Air that is cooler than the water comes into contact with the surface of the water
O Air that is warmer than water comes into contact with the surface of the water
O Air that is supersaturated with water vapor comes into contact with the surface of the water in
Answers
Evaporation occurs when air that is warmer than water comes into contact with the water's surface, hence option A is correct.
What is evaporation?As a liquid transforms into a gas, evaporation, a sort of vaporization, occurs on the liquid's surface. For instance, a high concentration of the evaporating substance in the surrounding gas significantly slows down evaporation when humidity affects the rate of evaporation of water.
It takes in moisture from garden soil as well as the biggest lakes and seas, and the level of the water will decrease when it is heated by the sun.
Therefore, solar energy, or heat from the sun, is what causes the evaporation process to occur, hence option A is correct.
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The author mentions that Shine made several mistakes in her experiment. Describe one major mistake that Shine made.
Answers
Answer:
theres no expirement attached, attach an expirement and i can answer
Explanation:
which describes a eukaryotic cell,but not a prokaryotic cell?
Answers
PLZ HELPPP!!!!!!!!!!!!
CRQ Question: What is the difference between weather and climate?
What are the geographic conditions that affect your area?
Answers
Nucleic acids _______.
A.) combine to form carbohydrates
B.) store and transmit hereditary information
C.) are made up of amino acids
D.) form polysaccharides
Answers
B - store and transmit hereditary information
If a cell suddenly stopped producing transfer RNA, which of the following processes would be immediately affected?
Answers
Answer: DNA
Explanation: The RNA is a big affect on the DNA because, there will be no repairs of the DNA leading to cancer
What appearance is liquid and gas? Choose all that apply.
A: Flows
B: Rigid
C: Stays at bottom of the container
D: Holds it's shape
E: Fills container
F: Takes shape of container
G: No visible shape
Answers
Answer:
2 shows the differences among solids, liquids, and gases at the molecular level. A solid has definite volume and shape, a liquid has a definite volume but no definite shape, and a gas has neither a definite volume nor shape
Explanation:
The_______
is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah
Jesus directed them not to tell anyone else.
Answers
Answer:
Messianic secret
Explanation:
The Messianic secret is a theme in the Gospel of Mark that portrays the disciples and others as recognizing Jesus' identity as the Messiah. Jesus directed them not to tell anyone else.
Hope this helps!
pls mark brainliest :)
an example of a community
Answers
Answer:
Community, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Explanation:
Please help you’d be a life save :) and please hurry if you can it’s due at 11:59 today right now it’s 1:55
Answers
2- cell membrane
4-nucleus
5-mitochondria
7-endoplasmic reticulum
8-vacuole
i know those ones are right.
3 and 6 are either lysosome and vacuoles but i don’t remember how to tell the difference
Which of the following solutions is neutral?
Group of answer choices
a solution with a pH of 14
a solution with a pH of 2
a solution with a pH of 7
a solution with a pH of 9
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Question 4
Potassium hydroxide has the chemical formula KOH. It feels slippery and is used in cleaning liquids. Based on this description, potassium hydroxide is most likely a(n)?
Group of answer choices
acid
base
neutral solution
pH indicator
first to answer gets the brinllest
Answers
Answer:
Kleenex
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Harvesting wood from forests is one the top industries in the world. There are various ways for loggers to harvest this wood. Which of the following would provide the best sustainable use of the land?
A. Strip cutting the trees because only mature trees are cut
B. Clear cutting the trees because it is the most cost effective method
C. Clear cutting the trees because it produces the greatest timber yield
D. Strip cutting the trees because it minimizes widespread destruction
Answers
Answer: D. Strip cutting the trees because it minimizes widespread destruction
Explanation: I think it's (d) because when forest fires occur, the trees will catch as well leading to it to travel from tree to tree, eventually getting around the forest, jungle woods, or wherever the fire occurs
what happens when a person is infected with live pathogens
Answers
Answer:Once you're infected, viruses invade host cells within your body. They then use the components of the host cell to replicate, producing more viruses. After the replication cycle is complete, these new viruses are released from the host cell. This usually damages or destroys the infected cells.
Explanation:
Answer:
Microorganisms capable of causing disease—pathogens—usually enter our bodies through the mouth, eyes, nose, or through wounds or bites that breach the skin barrier. Organisms can spread—or be transmitted—by several routes.
Explanation:
The iris of the human eye can have many colors, including brown, blue, green, and hazel. How does polygenic inheritance explain why many iris colors are possible?
Answers
Answer:
Some physical characteristics, such as the color of the human skin or eyes, are controlled by at least two genes. These traits are known as polygenic traits. The number of genes that determine the color of the iris is unknown, but the most significant of them are found in Chromosome 15 and they are named OCA2 and HERC2. These genes are associated with the production of melanin.
Explanation: Polygenic inheritance describes the inheritance of traits that are determined by more than one gene. These genes, called polygenes, produce specific traits when they are expressed together. Polygenic inheritance differs from Mendelian inheritance patterns, where traits are determined by a single gene. Polygenic traits have many possible phenotypes (physical characteristics) that are determined by interactions among several alleles. Examples of polygenic inheritance in humans include traits such as skin color, eye color, hair color, body shape, height, and weight.
Which ecosystem most likely has the greatest biological diversity and therefore the highest sustainability A. A tank that includes several goldfish B. Tundra region that has many penguins C. A pine tree in which three groups of birds live D. A rainforest that has many different types of plants and animals
Answers
Answer:
definitely D because a rainforest is extremely vast when it comes to different species
Explanation:
brainliest plz?
The ecosystem which is most likely has the greatest biological diversity and therefore the highest sustainability is a rainforest that has many types of plants and animals. Therefore, the correct option is D.
What is ecosystem?An ecosystem refers to the biological community where the biotic as well as the abiotic components interact with each other and influence each other.
It encompasses all the living organisms in a specific area as well as physical and chemical factors that shape their environment such as air water soil climate and environment. They play an important role in functioning the earth's biosphere, as they provide a range of essential services.
The study of ecosystem and interaction between is components is referred to as ecology. Hence, the correct option is D.
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How is the earthworm limited by being a skin breather?
Answers
Answer:
Earthworms need oxygen just like humans, but they don't have lungs like we do. They have a special skin that allows them to “breathe” oxygen right through it. ... This means the amount of oxygen inside the earthworm will always be less (lower concentration) than the area outside of the earthworm (higher concentration).
Answer:
It won't survive under water? mabye..... i don't think it sent the full question