2Which term describes the two groups of plants that do not need water to reproduce?
A. spermatophytes
B. cotyledons
C. embryophytes
D. Paleozoic plants
Answer:
A
Explanation:
.............................spermatophytes...........................
ason Kimble's study of the Archaea in Snowy River in Fort Stanton Cave showed that Archaea play an important role in __________.
Answer:
Ecosystem.
Explanation:
Archaea play an important role in ecosystems with organisms that derive or produce energy from oxidation of methane. Many of Archaea are bacteria which are often a major source of methane in such environments and they can play a role as primary producers. Archaea is important for scientists because it has unique ecological roles and can also generate energy differently i.e. responsible for producing biological methane which no eukaryotes or bacteria can do that.
You have a microorganism you know is both fastidious and which normally lives in human lungs. Which medium might this organism have the highest probability of growing on and why
Answer:
It is likely that this microorganism grows in enriched culture media.
Explanation:
As shown in the question above, the microorganism that lives in the lungs is extremely demanding. This means that this microorganism is very difficult to be cultivated in a culture medium, as it requires specific nutrients and in specific amounts to be able to develop. These microorganisms are called fastidious microorganisms and need an enriched culture medium to develop.
Enriched culture media are those that have a high range of nutrients in their composition. These culture media are highly nutritious and for this reason, they are the ideal environment for demanding microorganisms, as it can efficiently meet the needs of this organism.
hi,I was feeling so bored so I give this question What is climate change and what r the causes of climate change?
Answer:
Climate change is the global phenomenon of climate transformation characterized by the changes in the usual climate of the planet (regarding temperature, precipitation, and wind) that are especially caused by human activities
Humans are increasingly influencing the climate and the earth's temperature by burning fossil fuels, cutting down forests and farming livestock. This adds enormous amounts of greenhouse gases to those naturally occurring in the atmosphere, increasing the greenhouse effect and global warming. Humanity’s increased use of fossil fuels – such as coal, oil and gas to generate electricity, run cars and other forms of transport, and power manufacturing and industry
Deforestation – because living trees absorb and store carbon dioxide
Increasingly intensive agriculture – which emits greenhouse gases like methane and nitrous oxide
Câu 4: Nghiên cứu về lạm phát nằm trong đối tượng của…
a. kinh tế học vi mô.
b. kinh tế học vĩ mô.
c. kinh tế học thực chứng.
d. kinh tế học chuẩn tắc.
Answer:
Explanation:
B. Kinh tế học vĩ mô
Tell me how bacteria make their energy and other chemical products.
Answer:
Bacteria can obtain energy and nutrients by performing photosynthesis, decomposing dead organisms and wastes, or breaking down chemical compounds. Bacteria can obtain energy and nutrients by establishing close relationships with other organisms, including mutualistic and parasitic relationships.
Explanation:
I hope it helps! Please mark my answer as bräinliest! Thank You!
What is a controlled variable?
Answer: A controlled variable or constant variable is a variable that does not change during an experiment.
Explanation:
A controlled variable or constant variable is one which the researcher holds constant (controls) during an experiment. It is also known as a constant variable or simply as a control.The control variable is not part of an experiment itself it is neither the independent nor dependent variable but it is important because it can have an effect on the results gotten.
example of a controlled variable is temperature.
1. The structure that's not a component of wall of sponges is
Answer:
Chitin.
Explanation:
The structure that is not a component of wall of sponges is Chitin. Their body comprise of calcareous or siliceous spicules or protein spongin fibres. Choanocytes are the distinctive cells located in the interior body walls of sponges. Sponges are similar to other animals in many characteristics such as they are multicellular, heterotrophic, lack cell walls and produce sperm cells in order to produce offspring sexually and also different from animals due to lack of tissues and organs.
I need to know which ones to check off
Based on the Punnett square above, what are the genotypic and phenotypic ratios of the offspring? A red plant and a pink plant. Red plant genotype: Pink plant genotype: Phenotypic ratio: Red = Pink = White = Genotypic ratio: RR = Rr = rr =
Answer:
GivEn:⠀⠀⠀⠀⠀⠀⠀
The ratio of two sides of a parallelogram is 2 : 5.Perimeter of parallelogram = 70 cm⠀⠀⠀⠀⠀⠀⠀
To find:⠀⠀⠀⠀⠀⠀⠀
Sides of parallelogram?⠀⠀⠀⠀⠀⠀⠀
Solution:⠀⠀⠀⠀⠀⠀⠀
☯ Let two adjacent sides of parallelogram be 2x and 5x.
⠀⠀⠀⠀⠀⠀⠀
⋆ Refrence of image is shown in diagram:
⠀⠀⠀⠀⠀⠀⠀
[tex]\setlength{\unitlength}{1 cm}\begin{picture}(0,0)\thicklines\qbezier(1,1)(1,1)(6,1)\put(0.4,0.5){\bf D}\qbezier(1,1)(1,1)(1.6,4)\put(6.2,0.5){\bf C}\qbezier(1.6,4)(1.6,4)(6.6,4)\put(1,4){\bf A}\qbezier(6,1)(6,1)(6.6,4)\put(6.9,3.8){\bf B}\put(0.7,2.5){\sf 2x}\put(3,0.5){\sf 5x}\end{picture}[/tex]
⠀⠀⠀⠀⠀⠀⠀
[tex]\underline{\bigstar\:\boldsymbol{According\:to\:the\:question\::}}\\ \\[/tex]
Perimeter of parallelogram = 70 cm
⠀⠀⠀⠀⠀⠀⠀
[tex]\dag\;{\underline{\frak{We\;know\;that,}}}\\ \\[/tex]
[tex]\star\:{\boxed{\sf{\purple{Perimeter_{\;(parallelogram)} = 2 \times (sum\:of\: adjacent\:sides)}}}}\\ \\[/tex]
[tex]:\implies\sf 2 \times (2x + 5x) = 70\\ \\[/tex]
[tex]:\implies\sf 2 \times 7x = 70\\ \\[/tex]
[tex]:\implies\sf 14x = 70\\ \\[/tex]
[tex]:\implies\sf x = \cancel{ \dfrac{70}{14}}\\ \\[/tex]
[tex]:\implies{\boxed{\sf{\pink{x = 5}}}}\;\bigstar\\ \\[/tex]
Therefore,
⠀⠀⠀⠀⠀⠀⠀
2x = 2 × 5 = 10 cm.
5x = 5 × 5 = 25 cm.
⠀⠀⠀⠀⠀⠀⠀
[tex]\therefore[/tex] Hence, Adjacent sides of parallelogram are 10 cm and 25 cm.
A microbiologist is conducting a research project on chemolithoautotrophs. This means that the investigator is examining certain aspects of a bacterium that is a purple nonsulfur bacteria which depends on light. uses light as its energy source and carbon for organic compounds. can oxidize inorganic molecules such as ammonia and sulfur for energy. can use the energy from sunlight to build organic molecules from carbon dioxide. obtains carbon from organic molecules.
Answer:
uses light as its energy source and carbon for organic compounds.
Explanation:
The purple non-sulfur bacteria which depends on light produces organic food just like plants through the process of photosynthesis. The purple non-sulfur bacteria uses carbondioxide and water with sunlight produces oxygen and glucose which is an organic compound. So that's why purple non-sulfur bacteria is also known as phototrophic means organism that produces their own food through photosynthesis.
Table sugar is an example of which molecule
Answer:
Disaccharide
Explanation:
It is a disaccharide, a molecule composed of two monosaccharides: glucose and fructose. Sucrose is produced naturally in plants, from which table sugar is refined. It has the molecular formula C12H22011.
Answer:
table sugar is example of glucose. It has the molecular formula C12H22O11.
In general, men show _____ than women do. a. less facial expression b. more facial expression c. less envy or anger d. more envy or anger
Answer:
more envy and anger
Explanation: they cant control themselves lol.
Mode of action of aldehydes and Quaternary ammonium compounds is
Answer:
Aldehydes have antibacterial, antifungal, antiviral and sporicidal activity. These are helpful to destroy the spores of Bacillus subtilis and Clostridium sporogenes. Glutaraldehyde and formaldehyde are commonly used aldehydes in disinfectants.
Quaternary ammonium compounds work by denaturing the proteins of the bacterial or fungal cell, affecting the metabolic reactions of the cell and causing vital substances to leak out of the cell, causing death.
What is limiting factor
Answer:
limiting factors are often referred as a lack of a particular resource .
The most direct method by which an ion or molecule can move across a cell membrane is by ____________.A. using an integral protein.B. a sodium-potassium pump.C. simple diffusion. D. active transport.E. osmosis.
Answer:
C. Simple diffusion
Explanation:
Simple diffusion from a high to low concentration is the most direct method that ions or molecules can move across a cell membrane.
Through this method, no proteins are required for transport, and no energy is used.
The ion or molecule being transported directly moves across the cell membrane, without any other factors involved.
So, the correct answer is C. Simple diffusion
Which of these organelles prepares proteins to be fully functional?
A. Rough endoplasmic reticulum
B. Large vacuoles
C. Smooth endoplasmic reticulum
D. Chloroplasts
Rough endoplasmic reticulum
Answer:
Rough endoplasmic reticulum is among the organelles that are found in eukaryotic cells. The reason as to why it is called rough is because it has ribosomes attached to its surface. Its main function is to produce proteins.
Explanation:
Explain the role of cellular respiration in a cell.
Answer:
Every cell performs a type of cellular respiration as it is required to produce energy. The point of cellular respiration is to turn high-energy molecules, know as glucose, into ATP, a form of usable energy. There are two types of respiration, aerobic and anaerobic. Aerobic goes through 3 stages and produces the most ATP by using oxygen and releasing carbon dioxide. Anaerobic does the same job but only uses one stage and produces much less ATP. This process gives the cell energy and continues the carbon cycle.
Which critter trait is affected by an environmental factor, such as light, temperature, or
diet? Explain.
Answer:
Tallness.
Explanation:
Tallness is the critter trait that is affected by an environmental factor, such as light, temperature, or diet because the organism remains short if they are not getting food properly as well as temperature. Food provides essential nutrients that contribute in the growth of organism. Suitable temperature of the body allows the different functions in the body to be done which directly affects the growth of the body and the organism becomes taller.
List three potential effects of errors occurring during meiosis.
Errors can occur during meiosis producing gametes with an extra or missing chromosome. The consequences of this following fertilisation depend on which chromosomes are affected. Often the embryo is not viable, but some of these errors can lead to trisomy conditions or sex chromosome disorders.
Explanation:
:)
are amino acids associated with proteins
Answer:
Yes
Explanation:
Amino acids create proteins
What is the answer with explaining
Answer:
EeWw
Explanation:
The allele for the earlobe is depicted as e while that of the hairline is w.
A parent that is homzygous recessive for earlobes (ee) and homzygous dominant for hairline (WW) would have the genotype eeWW.
The other parent that is homzygous dominant for unattached earlobes and homzygous recessive for hairline would have the genotype EEww
eeWW x EEww
During meiosis, each genotype will form gametes.
eeWW: eW, eW, eW, eW
EEww: Ew, Ew, Ew, Ew
These gametes will randomly unite during fertilization to produce offspring. Since the same gametes are formed by each parent:
eW x Ew
offspring
100% EeWw (see the attached image for the Punnet's square)
The genotype of all the children would be EeWw and would phenotypically be with unattached earlobes and dominant hairline.
Our eyes are always the same size from birth
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✍︎☔︎ᴍᴀᴛʜᴅᴇᴍᴏɴǫᴜᴇᴇɴ☔︎
✍︎ᴥ︎︎︎ᴄᴀʀʀʏᴏɴʟᴇᴀʀɴɪɴɢᴥ︎︎︎
✍︎ꕥᴋɪᴍ ᴀʀᴀꕥ
What is immigration?
A. When animals leave an ecosystem
B. When animals are born in an ecosystem
Ο Ο Ο O
C. When animals move into an ecosystem
D. When animals die in an ecosystem
Answer:
C. When animals move into an ecosystem
Explanation:
Why do you think type 2 diabetes occurs so much more often than other inheritable diseases? Propose a hypothesis for why this allele has not been eliminated by natural selection.
Which type of species best describes a mouse: opportunistic or equilibrium? Explain why a mouse or rat population would continuously grow while other mammals (cheetahs) are nearly extinct.
Answer:
This allele has not been eliminated by natural selection because it may confer an adaptive advantage for particular environmental conditions
Mice and rats are opportunistic species. These species can rapidly adapt to different environmental conditions, while cheetahs are unable to adapt to changing environments.
Explanation:
An allele is a gene variant that may be beneficial, neutral, or deleterious for a particular environment. Different alleles are not eliminated by natural selection against other alleles (even when a priori seem to be deleterious) because they confer a selective advantage in a given environment. For example, the allele for sickle cell anemia is caused by a point mutation which is lethal in homo-zygous individuals, but heterozygous individuals are less likely to die of malaria, thereby this allele has been positively selected in geographic areas where malaria is an endemic disease. Moreover, mice and rats are opportunistic species, i.e., they are species that rapidly adapt to varied living conditions. These species are characterized to have high growth rates and produce many offspring. On the other hand, the cheetah is a highly specialized species that is unable to adapt to changing environments. In consequence, cheetah populations are more prone to become extinct than rat and mice populations.
What is the probability that a hybrid individual with the genotype AabbCcddEeFf will produce a gamete that has the genotype abCdeF
Answer:
6.25%
Explanation:
Find the number of different gametes that can be produced
number of gametes produced = 2^n
n is the number of allele pairs that are heterozygous
there are 4 heterozygous allele pairs, these are: Aa, Cc, Ee and Ff
2^4 = 16
abCdeF is one of the 16 genotypes that could be produced
to find the percentage, divide 1 and 16 and multiply by 100
1 ÷ 16 = 0.0625
0.0625 × 100 = 6.25
Viral or bacterial germs that invade body cells are called _____.
phagocytes
pathogens
white blood cells
lymphocytes
heavenly bodies that travel around a planet are called satellites or moon which planet has no satellite or moon
A. mars and venus
B. jupiter and venus
C. jupiter and mars
D. mercury and venus
Answer:
i think its A. i dunno if it is btw have a nice day
Answer:
D. Mercury and Venus
It was found that the C4 protein promotes synaptic pruning during brain development in the teenage years. This is a normal process in brain development that is important for removing unnecessary connections between neurons and establishing a mature brain structure. However, high expression levels of a certain allele of C4 can lead to too much pruning, which may promote the onset of schizophrenia. The variation observed at the C4 gene which leads to the greatest increase in risk was found to cause a 25% increase in the risk of developing schizophrenia. The baseline risk in the population is 1%. What is the risk of an individual with this variant developing the condition?a. 0.25%.
b. 1.25%.
c. 25%.
d. 26%.
Answer:
b. 1.25%
Explanation:
Variations observed in C gene has increase in risk of 25% to develop schizophrenia. It is a kind of an abnormality in which a person interprets reality unrepresentative. The baseline risk in population is 1% then there is 1.25% risk associated with an individual to develop this condition.
examples of c3 and c4 plants
