Answer:
thân ngắn,hai chi sau dài hơn 2 chi trước, đa số hoạt động về đêm
If intelligence is so useful, why do so few species have it?
Explanation:
Could intelligence simply be unlikely to evolve? Unfortunately, we can’t study extraterrestrial life to answer this question. But we can study some 4.5 billion years of Earth’s history, looking at where evolution repeats itself, or doesn’t.
How does the natural process of meiosis support evolution?
A. Each daughter cell mutates its own DNA during Reduction Division to produce more variation.
B. Each daughter cell is unique, providing natural variation.
C. Each daughter cell is identical, providing natural variation.
D. It does not support evolution.
During meiosis, each daughter cell tends to undergo mutation of its own DNA and leads to more variation. The correct option is A.
What is meiosis?Meiosis is a sort of cell division that occurs in organisms which reproduce the fusion of gametes and results in a diminution in the number of chromosomes in gametes. Body cells in humans are diploid, with two sets of chromosomes.
Meiosis is a process of cell division that produces 4 gamete cells while reducing the number of chromosomes in the parent cell by half.
This process is essential for the generation of egg and sperm cells for reproduction.
Meiosis reduces the number of chromosomes in a cell by half while also generating new allele pairings that are dispersed across daughter cells via segregation and recombination.
This genetic reshuffling, which is thought to be the basis of reproduction success, reduces genetic affiliations within and between loci.
Thus, the correct option is A.
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Which is one function of a protein macromolecule?
A. Making up the connective tissue in tendons
B. Cushioning the internal organs of an animal
C. Providing the building instructions for living things
D. Making the leaves of plants waterproof
Answer:
The muscles of the body is entirely made of proteins. They help in the making the connective tissue in the tendons of the body.
Explanation:
A. Making up the connective tissue in tendons
What is one major difference between federal and unitary governments?
A.
Constitutions are more important to a unitary government.
B.
There is more separation of powers in a unitary government.
C.
State governments are more powerful in a unitary government.
D.
The central government is stronger in a unitary government.
Answer: the central government is stronger in a unitary government
Explanation:
i got it wrong and it said that’s the correct one
Which type of chromosomal mutation
results in the reversal of a part of a
chromosome?
A, inversion
B. deletion
C. duplication
Answer: inversion, because I clicked on deletion and it was incorrect. I also tried duplication and it was also incorrect so please choose inversion.
Explanation:
Anyone help please lord please
Answer:
Explanation:
Gram positive stains are purple; gram negative are pink; cocci bacteria are spherical; the other is rod. There you go!
Once an experiment is complete,
which of the following is NOT a step to
be taken with the data?
A. incrpreting it
B. plotting it on a graph to find correlations
C. analyzing it with statistical analysis
D. altering it to fit within the hypothesis
Answer:
D. altering it to fit within the hypothesis
Explanation:
An experiment is carried out to fill an inquisition i.e. to answer a question. According to the scientific method, prior to experimentation, there must be a HYPOTHESIS. The hypothesis is tested for rejection or approval via experimentation.
After the experiment has been conducted, several things can be done with the data obtained. For example:
- Data can be interpreted
- the data can be plotted in a graph to find correlations
- It can be analyzed it with statistical analysis.
One thing that should never be done is; altering the data from experimentation to fit in the hypothesis.
30 POINTS PLUS BRAINLIEST PLEASE HELP
What role do decomposers play in the cycling of material in a biogeochemical cycle?
Decomposers incorporate some organic compounds into their bodies and release some back to the environment as waste.
Decomposers use nonliving processes such as rain and fire to make inorganic chemicals.
Decomposers break down organisms to supply the soil, water, and air with inorganic chemicals.
Decomposers make chemicals from the nonliving environment into organic compounds.
the answer is c, they break it down to give the nutrients so other plants can grow
In an ecosystem, decomposers break down organisms to supply the soil, water, and air with inorganic chemicals.
What is an ecosystem?Ecosystem is defined as a system which consists of all living organisms and the physical components with which the living beings interact. The abiotic and biotic components are linked to each other through nutrient cycles and flow of energy.
Energy enters the system through the process of photosynthesis .Animals play an important role in transfer of energy as they feed on each other.As a result of this transfer of matter and energy takes place through the system .Living organisms also influence the quantity of biomass present.By decomposition of dead plants and animals by microbes nutrients are released back in to the soil.
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Which of the following occurs as protein form?
Answer:
A
Explanation:
Peptide bonds are formed by a biochemical reaction
PLEASE HELP PLEASE!!!! DOES ANYONE SOMEONE NAMED HIROJABAMI!?!?!? PLEASE HELP!!!!.....
Answer:
well I dnt know
btw thanks for ur points I really needed that.
The mission of the Office of Marine Conservation (OMC) is to promote obtainable and responsible aquaculture.
Answer:
This is true
Explanation:
The statements made in this question is true. The office of marine conservation has the following as their mission;
The formulation and implementation of the United States policy on a wide scope of international marine conservation matters. So as to keep economic prosperity through healthy sustainable and responsible aquaculture
Identify the missing parts of the carbon cycle
Answer:air pollution
Explanation:
Air Pollution is the presence in to the air of a substance which has harmful or poisonous effects
The chart shows four stages of demographic transition.
Answer:
D. Lots of people die. Lots of people are born to make up for it. We can see this from the high orange and purple lines.
Answer:
Sharply dropping birthrate
Explanation:
WHAT DO U MEAN BY HYBRIDS!
Answer:
I don't know what I mean by hybrids
Explanation:
Answ:
Como híbrido podemos designar a todo aquel individuo que es producto del cruce de dos organismos de distinta especie. Así, en biología, un híbrido puede ser un animal o un vegetal que es resultado del cruce de dos progenitores de distinta especie que, sin embargo, pueden producir progenie.
Explanation:
compare and contrast between pyriformis and fibula.Pls give right answer
Answer:
Tibia and fibula are the two long bones located in the lower leg. The tibia is a larger bone on the inside, and the fibula is a smaller bone on the outside. The tibia is much thicker than the fibula.
__Igneous rocks form below Earths surface
Answer:
intrusive igneous rocks
A cell membrane is bigger a specific about what allows across how does this help the cell
Answer: It helps the cell absorb as many different molecules as possible.
Explanation: the cell membrane, provides protection for a cell. It also provides a fixed environment inside the cell, and that membrane has several different functions. One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
the junction between two neurones is called a ____________
what one word completes the sentence
Answer:
The junction between two neurons is called a Synapse.
A geologist finds some tilted sedimentary rock layers.
Which conclusion can the geologist draw by looking at the rock layers?
1.Their absolute age is 600 million years.
2.They were tilted before they were deposited.
3.They were originally deposited horizontally.
4.The youngest layer was originally deposited as the bottom layer.
Answer:
Angular unconformity also causes geologic tilting. Angular unconformity occurs when parallel strata of sedimentary rocks are deposited on layers that are tilted, perhaps as a result of erosion. So the answer I think is B/2.
Explanation:
Plz don't be mad if i'm wrong
During which phase of mitosis do the chromatids line up in the center of the cell?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Answer:
B) Metaphase
Explanation:
Have a nice day xd ♡
Question 13(Multiple Choice Worth 5 points) (04.01 LC) Based on the way living things are organized, what level combines to form tissues?
A.Cells
B. Molecules
C.Organs
D. Organ systems
Answer:
A
Explanation:
Because a cell is the smallest unit of life
Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional
questions.
Online Content: Site 1
Online Content: Site 2
What changes can occur in an aquatic ecosystem as a result of nutrient loading? (Site 1)
Answer/Explanation:
Essential nutrients such as nitrogen, phosphorus, at specific moderate level are needed for the overall functionality of the aquatic ecosystem. However, when excess of these elements infiltrates the aquatic ecosystem, the nutrient overload causes a surge in the growth of aquatic plant. For example, algal bloom. These increased growth of aquatic plant further takes up space and oxygen, prevents sunlight and later leads to what is known as "dead zone". It is a condition of an ecosystem having little or no biological activity. Aquatic life is impacted negatively when this occurs.
These are the changes that occurs as a result of nutrient loading.
Examining the cells of an animal that has exercised recently would show:
A. Larger cells
B. Smaller cells
C. An increased number of oxygen-rich mitochondria
D. A decreased number of oxygen-rich mitochondria
The cells of an animal that has exercised A decreased number of oxygen-rich mitochondria.
What is oxygen ?
Oxygen is the chemical element with the symbol O and atomic number It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. Oxygen is Earth's most abundant element, and after hydrogen and helium, it is the third-most abundant element in the universe. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O
Diatomic oxygen gas currently constitutes 20.95% of the Earth's atmosphere, though this has changed considerably over long periods of time. Oxygen makes up almost half of the Earth's crust in the form of oxides.
Many major classes of organic molecules in living organisms contain oxygen atoms, such as proteins, nucleic acids, carbohydrates, and fats, as do the major constituent inorganic compounds of animal shells, teeth, and bone. Most of the mass of living organisms is oxygen as a component of water, the major constituent of lifeforms. Oxygen is continuously replenished in Earth's atmosphere by photosynthesis, which uses the energy of sunlight to produce oxygen from water and carbon dioxide. Oxygen is too chemically reactive to remain a free element in air without being continuously replenished by the photosynthetic action of living organisms.
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Use the information from the graph to answer the
question
What is the total displacement of the object?
m
Velocity vs. Time
40
30
Velocity (m/s)
20
10
0
0
5
20
25
10 15
Time (s)
The displacement of the object is 303.75m.
What is displacement?Distance covered by a body in a particular direction is called displacement. To calculate displacement from a velocity-time graph, we calculate the area under the curve.
The displacement is covered by drawing perpendiculars on the time axis. Let AB be the first and CD be the second perpendicular.
Extend A to CD at E.
Now, area of ABCD trapezium
= (AB + DC)/ 2 × AD
= (10.5 + 30)/2 m/s × 15 s
= 303.75 m is the area under the curve.
Therefore, 303.75 m is the displacement of the object.
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Answer: 562.5
Explanation: Edge 2023
how is erythrocytes an advantage in exchanging and carrying
Answer:
Shape of Red Blood Cells Erythrocytes are biconcave discs with very shallow centers. This shape optimizes the ratio of surface area to volume, facilitating gas exchange. It also enables them to fold up as they move through narrow blood vessels.
¿Cuál de los siguientes niveles es el sucesor del nivel tejido?
A.
Órgano.
B.
Sistema.
C.
Organismo.
D.
Célula.
C. Órgano
Porque Célula→Tejido→Órgano→Sistema→Organismo
The actual pair of alleles present in the cells of an individual is known as the:
genotype.
karyotype.
phenotype.
archetype.
magine that a scientist takes a group of Anolis lizards and introduces them into an enclosure at a research facility in continental South America. He notes that the lizards thrive in this new environment. The fact that Anolis lizards could survive in habitats outside of the Caribbean is a reflection of their ____ niche; their _____ niche is determined by their ability to disperse to other areas as well as predation and resource availability.
Answer: Fundamental, realized
Explanation:
The realized niche of a species is usually the result of predation, competition, and other types of interaction between species.
The size of realized niche is determined by interspecific competition .The fundamental niche is larger than the realized niche.
The fundamental niche represents all the habitats where a species could possibly live, but competition among different species usually restricts a species to a smaller area, which is the realized niche
Please Cove am save me
Explanation:
Appropriate Question:-
The output for a 60kg woman who runs up a 3m high flight of stairs in 3.5 sec.starting from rest but having a final speed of 2 m/s.
Given:-
Mass of woman=m=60kg.
Height=h=3m
Time=t=3.5secs.
To find :-
Here we want to calculate the output for a woman
Here first we should calculate work done first.
work \: done = mghworkdone=mgh
Applying the values,
work \: done = 10 \times 60 \times 3workdone=10×60×3
Work done= 1800Joule.
Now , lets calculate power,
power = \frac{workdone}{time \: taken} power=
timetaken
workdone
Now,
Applying the values ,
power = \frac{1800}{3.5} power=
3.5
1800
Power =514.2857 watt.
Hope it helps u mate .
Thank you .
Answer:
514.2857 watt.
Explanation:
During production of a drug, all work area surfaces must be disinfected using sterilized disinfectants. Which of the following statements about disinfectants are true? Select all that apply. View Available Hint(s)for Part A Disinfectants destroy all microbes present on a surface. Disinfection can be used to treat work surfaces as well as workers (i.e., washing hands). Disinfection can occur by physical or chemical means. Disinfectants are used to inhibit or destroy pathogens. Endospores and viruses can resist disinfectant treatment.
Answer: The correct options are
--> Disinfectants are used to inhibit or destroy pathogens,
--> Disinfection can occur by physical or chemical means,
--> Endospores and viruses can resist disinfectant treatment.
Explanation:
To prevent infectious diseases from spreading or to sterilise work area surfaces during the production of drugs, chemicals known as disinfectants as used. These are chemicals that kill or inhibit the growth of pathogens. Other chemicals such as antiseptics can also kill and prevent the growth of mainly pathogenic microorganisms. However, disinfectants are stronger chemicals than antiseptics and so are often used on non-living things and surfaces.
Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores (endospores) and viruses, so it is less effective than sterilisation.
There are generally two methods of disinfection:
--> The chemical method: A typical example of a chemical disinfectant is the carbolic acid. It is used for disinfecting lavatories and floors.
--> The physical method: here, physical agents are use to disrupt and damage the pathogenic organisms on work surfaces. Some typical example include: UV irradiation, heat, sunlight exposure, sonic or hydrodynamic pressure and radiation.
