Answer:
Life on earth is very diverse, from single-celled protozoans to complex multicellular plants and animals. But at the molecular level, all life is fundamentally made up of the same building blocks – DNA and RNA. One of the primary differences between DNA and RNA is that DNA is double-stranded while RNA is single-stranded.
class 6 students come here I will give you notes class is started come here fast I am waiting come with your name and class girls i am also girl
Answer:
yes mam I am present in your class.
How does genetic variation allow a population to survive during environmental changes?
It allows natural selection and therefore increase or decrease in allele frequency that are already in the generation
Why would competition among individuals within a deer population increase during a winter season?
A. Many plants die and less vegetation is available.
B. The winter season has produced an abundance of food.
C. Many individual deer have emigrated.
D. The population has suffered a crash as a result of attack by predators.
Answer:
A. many plants die and less vegetation is available
Explanation:
Therefore, they have to increase competition for scarcer resources.
QUESTION 2
What organism is defined as a multicelled organism that develops through a series of stages and move
life?
O a archaea
Ob bacteria
c. fungi
d. animals
o e plants
Answer:
Animal
Explanation:
choose a plant or animal that you think is interesting. describe some of the threats or challenges
Answer:
If I were to choose a plant or animal which is interesting, I'd choose the "cactus."
Explanation:
A "cactus" is truly a splendid plant owing to its ability to survive in the desert or periods of drought. Growing them is also not that challenging or difficult. However, this plant is prone to certain threats that may lead to its extinction.
One of these threats is the "over-collection of cacti." Due to its versatile use, the cactus is often sold as an ornamental plant. Another threat is the number of pests, such as snails and slugs, that attacks it yearly. It is a delicious food for mealy bugs, red spider mites, gnats, flies, etc.People often misunderstand the cactus' water level needs. Some people over-water the plant and this often results to the bacteria, virus and fungi being attracted to it.Water Hyacinth
Water Hyacinth grows profusely, forming dense mats that can spread across water surfaces eventually blocking the entire water body.
It can eliminate native wetlands and waterways and kill aboriginal fish and other wildlife.
Also, it causes a high evaporation rate and loss of water and degrades water quality.
What are the natural predators of the water hyacinth?
Water hyacinth is native to South America, the only continent where natural predators such as weevils and moths keep it at bay.
Thus, these are some of the threats or challenges of water hyacinth.
To learn more about water hyacinth click here:
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Goodmorning, can someone please help me figure this out? Thanks
Answer:
Vacuole.
Hope this helps!
Explanation:
What controls the ratio of the two isotopes in foraminifera shells?
A. The temperature of the water
B. The salts in the water
C. Water pressure
D. Radiation
Answer:
A. the temp of the water
Explanation:
a sediment core from the JOIDES Resolution, an ocean-going ship that has collected many sediment cores that record Earth’s past climate.
The ratio of the two isotopes in foraminifera shells is affected by temperature.
What is temperature?Temperature is the degree of coldness or hotness of an object or a particular place.
Isotopes are atoms of the same element with different masses.
The factors affecting the ratio of isotopes of elements depends on the Half-Life of the isotopes as well as temperature.
Temperature will make the rate of decomposition reaction faster.
The ratio of the two isotopes in foraminifera shells is affected by temperature.
Learn more about isotopes at: https://brainly.com/question/14220416
Compare how cells in unicellular and multicellular organisms perform the tasks needed for life.
Answer:
These organelles are responsible for a variety of cellular functions, such as obtaining nutrients, producing energy, and making proteins. Unicellular organisms are made up of only one cell that carries out all of the functions needed by the organism, while multicellular organisms use many different cells to function
Explanation:
I have two questions .
Earth Science
Answer:
here's some thoughts
Explanation:
Glaciers cut through rock and deposit the sediments as they melt.
In Connecticut, Long Island Sound was created by glaciers. Glaciers created a natural barrier between the ocean and the land. Almost like a moat protecting a castle.
There are many large boulders in cities around Connecticut that were left behind after the ice melted away. The Connecticut River Valley was cut by a glacier.
Which of the following animals has a broad niche?
Sea slug
Protists in termites
Snowy owl
Raccoon
Answer:
raccoon
Explain
because raccoons can basically live anywhere and eat anything snowy owls cant live somewhere hot like in California. and I don't know what kind of termites your talking about
Question 6
Review
A mutation changes a gene in a cell in the stomach of an organism. This mutation coul
1.
both the organism and its offspring
2.
the organism, but not its offspring
3.
its offspring, but not the organism itself
4.
neither the organism nor its offspring
Submit Answer
What type of chemical reactions only occur if there is an input of energy?
Answer:
Synthesis reactions
Explanation:
"Synthesis reactions bond reactants together, a process that requires energy, whereas decomposition reactions break the bonds within a reactant and thereby release energy." :)
Which of the following correctly shows a prairie food chain?
grass, grasshopper, lizard, hawk
hawk, grasshopper, lizard, grass
snake, grasshopper, hawk, grass
grasshopper, grass, snake, hawk
Answer:
A - Grass, Grasshopper, Lizard, and Hawk
Explanation:
Grass will start first because it is the producer, then Grasshopper, Lizard and Hawk. It is like going from smallest to biggest.
Which of the following best explains how the fossil record provides evidence that evolution has occurred?
a. It shows that forms of life existed on Earth at least 3.5 billion years ago.
b. It shows the detail of structural and behavioral adaptations of organisms.
c. It shows how the embryos of many different vertebrate species are very similar.
d. It shows that the structure of groups of organisms have progressively changed over time.
Answer:
A It shows that forms of life existed on Earth at least 3.5 billion years ago.
Explanation:
AIt indicates that forms of life existed on Earth at least 3.5 billion years ago. It indicates the exact cause of structural and behavioral adaptations of organisms.
A new study in the Proceedings of the National Academy of Sciences that uses the latest techniques to date the most aged remains available, confirming the existence of bacteria and microbes nearly 3.5 billion years ago, possibly living on a planet without oxygen.
Hope this helps!
If you have any questions please ask.
What volume percent of the liquid you skimmed into your test tube is oil? (show a ratio value if
you have it) ____________________________
How did you arrive at this answer? _________________________________________________
______________________________________________________________________________
Maybe once you start answering other people's questions correctly, you might get the answer that you want!
Best regards,
your friend
;)
Answer:
mhm
Explanation:
Give an example of a protein for each of the functions of proteins.
(Support –Metabolism – Transport –Defense – Regulation – Motion)
Explanation:
Support- Actin filaments which allows movement of the cell surface.
Metabolism- insulin, which is small globular protein having two chains.
Transport- sodium-potassium pump, which is transport protein. It creates the gradient of ion that allows firing of the neurone.
Defense- Antibodies
Regulation- activator proteins that bind to regulatory site of the DNA
Motion- Actin filaments
What are details/evidence of a Prokaryotes? please help and thank you.
Answer:
Prokaryotic cells are much smaller than eukaryotic cells, have no nucleus, and lack organelles. All prokaryotic cells are encased by a cell wall. Many also have a capsule or slime layer made of polysaccharide. Prokaryotes often have appendages (protrusions) on their surface.
A biology student is writing a research paper about different bear species.
He begins by writing that all bears belong to the Class Mammalia, Order
Carnivora, and the Family Ursidae. Which scientific aspect of bears is he
writing about?
1.Embryology
2.Comparative Anatomy
3.Taxonomy
4.Molecular Biology
The scientific aspect of the bears he is writing about is taxonomy.
What is the concept of taxonomy?Taxonomy is, by
DefinitionClassificationSystematic.The rescue of taxonomy in information systems considers the systematic unit (taxon) no longer family, genus, species, but concepts. Here, the classes are presented in a logical order, also supported by classificatory principles.
With this information, we can conclude that the scientific aspect of the bears he is writing about, is the Taxonomy.
Learn more about taxon in brainly.com/question/367202
Match the costs to their respective categories.
raw materials
machinery
by-products
employees
odor arising from
production
Internal Costs
External Costs
Answer:
odor rising from production internal costs
Answer:
internal costs
raw materials
employees
machinery
external costs
odor arising from production
by-products
Where would you expect to find the most genetic diversity among humans?(This is a multiple choice question)
A. in city
B. in a town
C. in a family
Answer:
In a city
Explanation:
Your family all shares DNA, and towns are small and have fewer people and the lack of people leads to a lack of diversity.
which of the following is NOT a macromolecule used by cells;
A( proteins
B( carbohydrates
C( lipids
D( nucleic acids
E( monosaccharides
Answer:
Monosaccharides
Explanation:
A monosaccharide is a monomer of a carbohydrate. Macromolecules are made up of monomers!
why is it easy for a virus to mutate?
Answer:
Viruses mutate very quickly The major reason that viruses evolve faster than say, mosquitoes or snakes or bed bugs, is because they multiply faster than other organisms. And that means every new individual is an opportunity for new mutations as they make a copy of their genetic material. Many of those mutations have no noticeable effect.
Explanation:
what are the limitations of the cell theory?
Answer:
Viruses are a limitation to cell theory
Explanation:
According to cell theory, all cells arise from pre - existing cells. But viruses lack any membranes and do not show the characteristics of life unless they enter a living body and use its cell machinery to multiply.
using the passage which statement correctly describes the energy level of a group of organism
Answer:
Largemouth bass fish are tertiary consumers that receive the smallest amount of energy in the pyramid.
Explanation:
Which of the following is similar among all living organisms on Earth?
A.
social behavior
В.
cellular function
C. physical appearance
D.
all of these
Answer: B
Explanation:
What event accompanies energy absorption by chlorophyll (or other pigment molecules) of the photosystems
Answer:
an electron is exited
Explanation:
as the electrons are released into the system of electron carriers involved with photosystem two, they lose their energy
Englo
Unit Test
Ur Test Active
2
8
TIME REMAINING
01:53:24
Sopria was stucying with Maalik about the layers of the Earth. They were given several different statements about the
Which statement about the layers would they identify as correct?
The outer core is less than 70 km in thickness.
The crust assists informing Earth's magnetic field.
The mantie is derser than the crust
O Pressure increases when moving from the core to the crust.
Answer:
I think the answer is B
Explanation:
Sorry If I got it wrong -w-
Answer:
its b
Explanation:
Which dark solar feature is shown in the picture above?
Solar flare
Prominence
Sunspot
Corona
Answer:
corona is dark solar feature I think
Which strand is the shortest??
State one reason
scientists would value an experiment that does not support the initial hypothesis.
Answer:
An experiment that does not support the initial hypothesis would prove that the scientists initial thoughs were incorrect thus needing further investigation and experimentations.
Explanation: