Answer:
substitutions will accumulate faster in mountain lions
Explanation:
Genetic drift is the stochastic change in the allele frequencies in a population due to random sampling events. Genetic drift is known to produce the fixation of alleles (where allele reaches a frequency of 1) or loss of neutral genetic diversity in a population. Genetic drift conducts a population towards genetic uniformity over time. Neutral substitution refers to the emergence of a previously non-existent gene variant that arises by neutral mutations (i.e mutations that do not confer an adaptive advantage), which may be subsequently fixed or lost by genetic drift. The rate of neutral allele fixation is higher in smaller populations because drift (random sampling) is maximized, whereas in populations with infinite size fixation cannot be achieved. In consequence, neutral substitutions will accumulate faster in small populations than in large populations.
trochophore larva is found in which phylum
Answer:
Trochophores exist as a larval form within the trochozoan clade, which include the entoprocts, molluscs, annelids, echiurans, sipunculans and nemerteans. Together, these phyla make up part of the Lophotrochozoa; it is possible that trochophore larvae were present in the life cycle of the group's common ancestor.
Explanation:
How the seedling continues to growth without cotyledon
what is the name of the cell that activates CD4 and CD8 cells?
Hey there! Let's solve the problem:
CD4 T cells activate CD8 T cells through an underhanded cycle including an antigen presenting cell (APC), customarily a standard dendritic cell (DC). An APC presents a peptide to a true CD4 T cell through a Class II MHC molecule.
Can someone help me plz I really need it
Answer:
1. GPS The second one is sphere and the 3rd one is Bulge
Explanation:
sources of oxygen and how the fish in water gets oxygen
This process requires large volumes of water to pass through absorption surfaces to get enough oxygen into their bodies using their mouths and gills. These body parts work like a pump to keep water moving over the gas absorption surfaces of the gills.
Answer:
The sources of oxygen is oxygen supply . The fishing water gets oxygen , fish have gills to breathe in the oxygen contained in water.
______can be made from the science experiment called primordial soup
Answer:
Miller, along with his colleague Harold Urey, used a sparking device to mimic a lightning storm on early Earth. Their experiment produced a brown broth rich in amino acids, the building blocks of proteins. ... Instead, the mix created a colorless brew, containing few amino acids
Explanation:Oparin and Haldane thought that with the mix of gases in the atmosphere and the energy from lightning strikes, amino acids could spontaneously form in the oceans. This idea is now known as "primordial soup." In 1940, Wilhelm Reich invented the Orgone Accumulator to harness the primordial energy of life itself.
which of the following correctly describes the process being illustrated?
During prophase I of meiosis I, alleles cross over and recombine to form non-identical haploid chromatids. Therefore, option , (D) is the process being illustrated.
What happens in prophase I ?Prophase I of meiosis I is a process that consists of five distinct stages during which genetic material in the form of alleles undergoes crossover and recombination to generate non-identical haploid chromatids. Prophase I of meiosis I is the first step of meiotic division.
The first stage of meiosis is known as Prophase 1, and it is differentiated into five distinct phases: leptotene, zygotene, pachytene, diplotene, and diakinesis.
In what is referred to as the synaptonemal complex, the paired chromosomes, one of which is of paternal origin and the other of which is of maternal origin, associate with one another along the entirety of their length. Pachytene is the name given to this stage of meiotic prophase I because at this point the paired chromosomes have compacted and appear to be fat.
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Which of the following is NOT true of Chlorophyll?
A) It reflects all the colors of light but absorbs the green.
B) It reflects the green wavelengths of light and absorbs all the rest.
C) It is essential for photosynthesis?
Answer: A.It reflects all the colors of light but absorbs the green.
Explanation:
Photosynthesis, which gives plants their green hue, requires chlorophyll. Therefore, option (A) is not true.
What is chlorophyll?Chlorophyll, the pigment that gives plants their distinctive green hue, is crucial to the process of photosynthesis, which provides energy for a plant's metabolism, growth, and reproduction. Because chlorophyll does not absorb the green wavelengths of white light, it is chlorophyll that gives plants their green hue. The plant appears green because it reflects that particular light wavelength. Autotrophs are plants that produce their own sustenance through photosynthesis.
The stroma, which is the area between the thylakoid and chloroplast membranes, is where the chlorophyll, the green pigment, is found.
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How is the nitrogen cycle important to DNA and synthesis of proteins?
Answer:
Once nitrogen is converted into compounds like ammonium and nitrate, these can be taken up from soils by plants and then the nitrogen can be used to form macromolecules like proteins and nucleic acids (DNA and RNA). ... It is an important part of many cells and processes such as amino acids, proteins and even our DNA.
Explanation:
Hope it helps...:)
HOW DO PROKARYOTIC ORGANISMS MAINTAIN HOMEOSTASIS?
Answer:
Prokaryotes can make proteins to help stop the negative effects of a change in either pH or temperature.
Explanation:
Proton pumps help balance out pH, while heat shock proteins help keep proteins together when temperature climbs too high. hope this helps
Which process occurs as various body parts form in a developing embryo?
options:
Meiosis
Fertilization
Differentiation
Answer:
The correct answer is differentiation.
Explanation:
The process of development during which the cells of the embryo specialize and the origination of different tissue compositions take place is known as embryonic differentiation. An organism is formed of distinct cell types, with each exhibiting specific functions. During embryogenesis, differentiation of cells is essential for the cell, organ, tissue, and organism's identity.
With the development of an embryo, the individual cells start to differentiate. In the embryo, the differentiation of cells takes place by both extracellular and internal cellular factors. The phenomenon of embryonic development plays an essential part in the proper development of an organism.
Imagine you are a dietician. You are treating a patient who has diabetes. The patient can’t have too many carbohydrates that are monosaccharides or disaccharides. What would you recommend the patient avoid eating? Check all that apply.
It is the process in which the genetic code in mRNA is read, one codon at a time, to make a protein.
A Translation
B Replication
C Transference
Answer:
C
Explanation:
What phase of mitosis is shown in the image?
a.
prophase
b.
metaphase
C
anaphase
d.
telophase
e.
cytokinesis
b- metaphase is the phase of mitosis shown in the image
How do greenhouse gases affect Earth’s atmosphere?
Answer:
The greenhouse effect is a natural process that warms the Earth's surface. When the Sun's energy reaches the Earth's atmosphere, some of it is reflected back to space and the rest is absorbed and re-radiated by greenhouse gases The absorbed energy warms the atmosphere and the surface of the Earth.
Explanation:
Hope this helps
Answer:
The atmosphere pretty much blocks the greenhouse gases from escaping, and it warms the Earth, hence global warming.
Explanation:
Brainliest best answer.
Which statement best describes how the Sun and the planets are related?
Question 6 options:
The Sun rotates on its axis.
The planets revolve around the Sun.
The Sun revolves around the planets.
Planets rotate on their axes.
Answer:
i would say the planets revolve around the sun
On average, a 1°C change in temperature is enough to put corals at risk of bleaching and death. Based on the slope of the trendline, in how many years will global temperatures be 1°C above average? Show your work and justify your answer.
It takes 50 years to rise global temperatures to 1°Celsius.
It takes 50 years to rise global temperatures to 1°Celsius if the temperature increases per decade is 0.18 °Celsius. From 1880, global temperature increased at an average rate of 0.07°Celsius (0.13°F) per decade but due to industrial revolution the average rate in global temperature increase double i. e. 0.18°Celsius.
If global temperature increases with the rate of 0.18°Celsius per decade, it takes about more that 50 years to reach global temperature to 1°Celsius so we can conclude that 50 years is needed to rise global temperatures to 1°Celsius.
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1) Which picture in the diagram would be classified as a prokaryote?
Α) Α
B) B
0 C
D) D
Answer: the answer is A
Explanation:
What is the optimum temperature range for steelhead trout?
Answer:
WDOE suggests that the MWMT should not exceed 17-18ºC, and daily maximum temperatures should not exceed 21-22ºC to be fully protective of adult steelhead migration.
Explanation:
Got it off google! Im not smart XDD
In sheep, white wool is dominant over spotted wool. If 10 purebred white wool sheep (TT) are crossed
with 10 spotted wool sheep (tt), how many offspring will have spotted wool?
05
O 10
ОО
04
Answer:
0
Explanation:
This question involves a single gene coding for wool color in sheeps. The allele for white wool (TT) is dominant over the allele for spotted wool (tt). This means that a sheep with an heterozygous genotype (Tt) will be white-wooled.
In this cross, 10 purebred white wool sheep (TT) are crossed with 10 spotted wool sheep (tt). This will give rise to all offsprings with heterozygous genotype: Tt (see attached image for punnet square). Since, white wool (T) is dominant, all the offsprings will have a white wool and none i.e. 0 will have a spotted wool.
biosphere
Question 5 of 25
How are photosynthesis and cellular respiration related?
A. Photosynthesis releases energy, while cellular respiration stores
energy
B. Cellular respiration is the process animals use to produce glucose,
while photosynthesis is the process plants use to produce
glucose.
C. Cellular respiration breaks down glucose, while photosynthesis
produces glucose.
D. Photosynthesis produces water molecules, while cellular
respiration splits water molecules apart.
SUBMIT
(b) Find the resultant of a force 4N and 8N acting at the same point on an object if the forces act in the same
direction in the same straight line
Answer:
12N
Explanation:
4n+8n=12N
The cell membrane is made of phospholipids and is selectively permeable , or semipermeable. Which major theme in biology does this statement represent?
A. All living things require an energy source
B. Structure relates to function
C. All organisms share seven basic characteristic
D. DNA transcribes into RNA , and RNA translates into proteins
Answer: B
Explanation:
The way something is arranged enables it to play its role, fulfill its job, within an organism (a living thing). Structure-function relationships arise through the process of natural selection.
Answer:
B) Structure relates to function
Explanation:
I took the test
Choose the answer that best completes the sentence. ______ zebra mussels can live six or seven years, now it seemed that most were dying after only one or two years.
Answer:
C
Explanation:
A. Since
B. Because
C. Although
D. For example
Zebra mussels have been known to have a lifespan of six or seven years in the past but recent discoveries have shown that their average lifespan now ranges between one to two years. Hence, the correct word to fill in the gap would be 'Although'.
The correct option is C
What two ways does your body respond to respiratory distress?
Answer:
Grunting , color changes , sweating , wheezing and body position . ect.
Explanation: lmk if its wrong . but it should be right
This table shows how the levels of classification have changed with each major scientist.
Which number belongs in the space labeled X?
A. 5
B. 7
C. 8
D. 10
Answer:
Woese increased the number of levels of Hierarchy from 7 to 10, therefore the answer is D. 10
Explanation:
Carl Woese classified the three domains of life so 10 belongs in the space labelled X.
Who was Carl Woese?Carl Richard Woese was a microbiologist and biophysicist from the United States.
Woese is best known for identifying the Archaea (a new category of life) in 1977 through the phylogenetic taxonomy of 16S ribosomal RNA, a technique he pioneered and which revolutionized microbiology.
In 1967, he also proposed the RNA world idea, though not under that name.
Woese was a professor of microbiology at the University of Illinois in Urbana–Champaign and held the Stanley O. Ikenberry Chair.
Woese classified the various living forms into three categories:
Eubacteria, Archaebacteria, and Eukaryotes.
The three-domain classification is also useful for determining the evolutionary relationships between organisms.
Hence, the correct answer is D i.e. 10
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Arrange the following steps from a typical genetic modification procedure into their correct sequence.
a. Select the gene of interest + insert into plasmid
b. Protein product harvested from bacteria
c. Isolate bacterial plasmid
d. Bacteria replicate
e. Cloned gene harvested from bacteria
f. Plasmid taken up by bacterium
Answer:
f. Plasmid taken up by bacterium
c. Isolate bacterial plasmid
a. Select the gene of interest + insert into plasmid
b. Protein product harvested from bacteria
d. Bacteria replicate
e. Cloned gene harvested from bacteria
Explanation:
Genetic modification refers to the methods used to obtain genetically modified organisms (GMO). Plasmids are widely used in genetic engineering to transfer target genes into bacterial cells and/or cells of higher organisms. For example, in plants, the Agrobacterium-mediated transformation process involves the use of this bacterium to obtain GMO:
1) A T-DNA plasmid is removed from Agrobacterium tumefaciens and this transfer DNA (T-DNA) is cleaved using a specific endonuclease enzyme
2) A piece of foreign DNA fragment (target gene sequence to insert) is split off and then integrated into T-DNA
3) Recombinant plasmids are re-inserted into Agrobacterium and then bacteria are used to insert target DNA into plant cells
4) Plant cells grown in culture in order to obtain GMO adult plants with the desired genetic modification
Lurching gait is due to paralysis of which two muscles?
Select one:
a. Glutei maximus and minimius
b. Gluteal medius and minimus
c. Gluteal maximus and medius
d. Gluteal maximus
Which of the following events happens during Transcription?
1. a mRNA strand is created using the code in DNA
2. a new DNA strand is created from the amino acid sequence
3. a sequence of amino acids is made
4. a new ribosome is created
Please Help.
Answer:A is the answer
Explanation:
The following events happen during Transcription - 1. an mRNA strand is created using the code in DNA
TranscriptionIt is the first step or stage of the process called central dogma or protein synthesis. It is called transcription as the genetic information encoded in the DNA sequence is transcribed into mRNA sequence.
The process of transcription is the formation of the mRNA from the DNA with the help of the enzyme RNA polymerase. It is carried out in three stages:
InitiationElongationTerminationLearn more about transcription:
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Mystery bull punnet square
Answer:
1. All red offsprings
2. All roan (RW) offsprings
Explanation:
According to this question, the allele for red color (R) is codominant with the allele for white color (W). Hence, an heterozygous cattle will give a roan color (RW).
- for cross 1 between RR and RR, only R gametes will be produced by both parents, hence, all the offsprings of this cross will possess a RR genotype i.e. all red traits
- Also, in cross 2 between RR and WW parents, RR will produce gametes R while WW will produce gametes W, hence, all the offsprings will have a genotype RW i.e. roan color
