Answer:
they bind to protein-coupled transmembrane receptors with higher complexity than those found in prokaryotes
Explanation:
G-proteins are proteins found inside the cells that function as molecular switches which are activated by binding to guanosine triphosphate (GTP), while they are inactive by binding to guanosine diphosphate (GDP). The G-proteins bind to G-protein-coupled transmembrane receptors (GPCRs) in the cytoplasmic region. The GPCRs are a very diverse group of proteins that are activated by extracellular molecules ranging from small peptides to large proteins, including pheromones, neurotransmitters, light-sensitive compounds, etc, thereby allowing them to respond to diverse stimuli from the extracellular environment. In consequence, it is reasonable to suppose that the signaling pathways in which G proteins are involved have a higher complexity level than those observed in primitive prokaryotic organisms.
Can carbon dioxide or carbon monoxide cause carbon poisoning?
Explanation:
carbon monoxide can cause carbon poisoning.
INDEPENDENT, DEPENDENT, OR CONTROL?
You water three sunflower plants with salt water. Each plant receives a
different concentration of salt solution. A fourth plant receives pure water.
After a two-week period, the height is measured.
1. Is the height the independent variable or dependent variable?
2. What is the control group in this experiment?
Answer:
dependent variable
the control group is the fourth plant with pure water.
Explanation:
Our solar system is found near the inner edge of large Scutum-Centaurus Arm of the Milky Way. True or False?
Answer:
true
Explanation:
The giant continent which was composed of all the land on Earth was called
a. Pangaea.
c. Gondwana.
b. Panthalassa.
d. Laurasia.
Answer:
Pangea
Explanation:
Answer
Which of the following is an example of evolution?
A. Plants colonizing inland areas after developing vascular systems that can hold and transport water.
B. An organism developing immunity to a disease after surviving it.
C. A Chameleon changing color when entering a different environment.
D. An organism dying because it is not adapted to its habitat.
Answer: B
Explanation: because it adapt to its environment to survive
The development of an organ system like a vascular system over a long period of time in plants is an example of evolution. Thus option A is correct.
What is evolution?Evolution is a series of events that have taken place in several years to make the species more advanced for the environment due to the introduction of multiple mutations in the genetic sequence.
During evolution, plants have gained the genetic mutation that codes for the vascular system which provide support and transports water in plants. So option A is correct.
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Sequence three probable steps of fossil fish formation?
Answer:
鱼类和鱼形动物的区别主要在于口与鳃结构的基本不同
Explanation:
What. Is black i will mark as brinelist
simple. black. Is a color and it is dark
Identify each of the following characteristics or descriptions as Lycopodium sp. or Selaginella sp., using the following key. (Both may apply to some characteristics listed.)
L = Lycopodium S = Selaginella
They have rhizomes that branch horizontally, producing aerial stems and underground roots.
Their leaves have a ligule, or tongue, on the upper surface.
They are heterosporus
They are homosporus.
They have strobili.
They have simple, scalelike leaves on branching stems from which roots arise.
They are known as ground pine.
They are known as spike moss.
nionger dars for many things, Based on the name "scouring rush," what quality best
Answer:
They have rhizomes that branch horizontally, producing aerial stems and underground roots. L
Their leaves have a ligule, or tongue, on the upper surface. S
They are heterosporus S
They are homosporus L
They have strobili. S L
They have simple, scalelike leaves on branching stems from which roots arise. S
They are known as ground pine. L
They are known as spike moss. S
Explanation:
Lycopodium is known as as ground pine, and is a genus of clubmosses. They are homosporus, because they produce only one type of sporangia, while Selaginella are heterosporus, because they produce microspores and megaspores, and they are known as spike moss. Both of them, lycopodium and selaginella can have strobili.
Two of the many cycles in nature's web of life are the carbon cycle and the A. energy cycle B. water cycle C. food cycle D. heat cycle
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▹ Answer
B. water cycle
▹ Step-by-Step Explanation
Water is something that is dependent on amongst living things. Without the water cycle, there wouldn't be a source of water and living things wouldn't be able to survive.
Hope this helps!
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break down component parts
Answer:
part c of the components
how do cells of plant devide without centrioles? explain
Answer:
Because the spindle fibers originate outside the nuclear membrane, plant cells can divide without centrioles.
~OAmalOHopeO
2. Calculate the rate of population increase for the whales and the seals from the data in table 2, trial 1. What does this rate represent?
Hint: From the point of zero change on the graph to the highest population achieved is a change in time of 100 months. (Refer to the science skills practice in the lesson for the correct formula for the rate of population change.)
Answer:
There are no tables but it should be a bell curve. as a population of whales rise the population of seals will decrease, eventually creating a plateau in the whale population. shortly after the plateau in the whale population the whale population will begin to decline ( as food becomes less available) causing the seal population will begin to rise and restabilize. this pattern should continue cyclically creating a wave function on a graph!
Explanation:
Using specific examples, discuss the roles of negative and positive feedback processes that maintain homeostasis.
Answer:
Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points. In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.
As part of your research, you examine mRNA expression for the parents, their two unaffected children, and their affected child with a Northern blot using a full-length cDNA probe.Your results, shown here, are as follows:Both parents have low, but detectable, mRNA expression.The unaffected children have either normal or low mRNA expression.The affected child has no detectable mRNA expression. What possible molecular defect could explain these results?Select every legitimate possibility from the choices below.a. The recessive allele could be a premature stop codon that prevents the translation of a full-length protein.b. The recessive allele could be a mutation in the promoter region that prevents RNA polymerase II from binding.c. The recessive allele could be a mutation in the transcribed region that makes the mRNA unstable and causes it to degrade.d. The recessive allele could be a mutation in regulatory DNA that prevents chromatin from being remodeled from a closed to an open state.e. The recessive allele could be a mutation in a splice donor or acceptor sequence that prevents proper mRNA splicing, leaving an intron in the spliced transcript.
Answer:
b.c d are the answer options
Explanation:
b. The recessive allele could be a mutation in the promoter region that prevents RNA polymerase II from binding.
c. The recessive allele could be a mutation in the transcribed region that makes the mRNA unstable and causes it to degrade.
d. The recessive allele could be a mutation in regulatory DNA that prevents chromatin from being remodeled from a closed to an open state.
in option b, the synthesis of mRNA is going to be halted
in option c, mRNA is undergoing degradation, it will be invisible in the northern blot.
in option d, mRNA in expression of each gene is going to be turned off.
.
What do you mean by taxonomy?
Answer:
The answer is below
Explanation:
Definition:
Taxonomy - The science of addressing, describing and classifying organisms (plants, animals and microorganisms of the world).
During genetic engineering, how do Restriction enzymes know what base pairs to act on? A. Ligase bonds it to the correct spot. B. They don’t, the scientist must target it manually. C. They bond to the Recognition site. D. It recognizes the sticky ends.
Answer:
C
Explanation:
Restriction enzymes, also known as restriction endonucleases or DNA-cutter identify the base pairs to act on by targeting and binding to the recognition site in a gene.
The recognition site in a gene/DNA consists of four to eight palindromic nucleotide sequence. It is a region that the restriction enzyme cuts during the genetic engineering process in order to produce sticky or blunt ends. A gene might contain more than one recognition site.
Restriction enzymes are usually found in prokaryotic organisms, especially bacteria where they function primarily as defense molecules against bacteriophages.
Correct option: C
Enzymes are protein molecules which are made up of long chains of
Evidence without_______
increases its reliability.
a
bias
b
question
с
repetition
d
replication
Answer:
I'll say its B ) Question
Explanation:
because when your proving something with evidence then you start asking questions (or still have questions) makes it seem like you don't really know.
Dr. Payton is a psychiatrist who believes that the source of all
human behavior comes from the unconscious mind. Dr. Payton
likely follows which school of thought in psychologs
Answer:
The Psychoanalytic School of Thought
Explanation:
Psychoanalysis is a school of psychology founded by Sigmund Freud. This school of thought emphasized the influence of the unconscious mind on behaviour. Freud believed that the human mind was composed of three elements: the id, ego and superego.
ᴼʳᶦᵍᶦᵒⁿᵃˡ ᵖᵘⁿ; What god do moles belleve in?
Answer:
i want to know the answer
Explanation:
Human blood type is an example of which two types of genetics?
A. Multiple alleles and Polygenic inheritance
B. Codominance and Incomplete dominance
C. Incomplete dominance and Polygenic inheritance
D. Codominance and Multiple alleles
The Human blood type is determined by the presence or absence of specific antigens on the surface of red blood cells polygenic inheritance involves the contribution of multiple genes to a single trait, which is not the case for human blood type determination. D
The genetics of blood types involves both codominance and multiple alleles.
Codominance refers to a situation where both alleles of a gene are expressed simultaneously and equally in the phenotype.
In the case of blood type, there are three alleles involved: A, B, and O.
Alleles A and B are codominant, meaning that if an individual inherits both A and B alleles, both antigens will be present on their red blood cells. This results in blood type AB.
Multiple alleles refer to the existence of more than two alternative forms of a gene in a population.
In the case of blood type, individuals can have blood type A (AA or AO genotype), blood type B (BB or BO genotype), blood type AB (AB genotype), or blood type O (OO genotype).
The A and B alleles are dominant over the O allele, which is recessive.
Therefore, the combination of codominance and multiple alleles explains the inheritance patterns of human blood types.
This system allows for the expression of both A and B antigens (codominance) while accommodating the presence of multiple alleles (A, B, and O) in the population.
It is important to note that blood type inheritance is not an example of incomplete dominance or polygenic inheritance.
Incomplete dominance refers to a situation where neither allele is completely dominant, resulting in an intermediate phenotype.
Therefore, human blood type is an example of both codominance (expressing multiple alleles simultaneously) and multiple alleles (more than two alternative forms of a gene exist within a population).
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Are bacteria eukaryotes
Answer:
yes they very much are!!!!!!!!!
a special effects artist mixes two different liquids in a bowl. both liquids are white. when she heats the bowl, a new compound forms. will the new compound be a white liquid?
Answer:
if a special effects artist mixes two different liquids in a bowl and they both are too white !
after heats those liquids
its forms curd like substance
its either will be white, its can increase its colour as darkish white or lightly yellowishblack
when she heats the bowl, a new compound forms and it will be white before heating and after heating it may be white or other dark color.
What are the properties of a compound ?A compound composed up of two or more elements which are chemically combined with a fixed proportion by their mass.
For example, Water, Sodium Chloride, Ammonium Chloride etc.
They have fixed melting and boiling points.
Formation of compound is a change in chemical reaction and the components of compound are mixed in a fixed proportion.
Two major types of compounds are covalent and ionic compounds.
Covalent compounds refers to formation of covalent bond among two nonmetals, like water or methane. These molecules are neutral and weak.
When metal react with non metal it form Ionic compounds, are held together by opposite charges, so the bond is stronger than covalent compound.
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Which of the following is not a function of the digestive system? Select one: A. mechanical processing B. absorption C. secretion D. ingestion E. filtration
Answer: option E.
Filtration.
Explanation:
Digestive system consist of the gastrointestinal tracts, organs that help to breakdown large complex consumed food into to small pieces which can easily be absorbed by the body.
Filtration is not a function of digestive system because it play a major role in circulatory system which help in movement of solutes out of the capillary into interstitial fluid by separating the bigger particles from the smaller particles, filtering out nitrogenous waste and regulating salt concentration .
how gravity plays a role in the parts of the water cycle shown in this model.
Answer:
look dear i will explain
Explanation: It pulls precipitation down from clouds and pulls water down hill . gravity also moves air and ocean water. Gravity pulls denser air and water downwards,forcing less dense air and water o move upwards.
okay hope it works
Hit like
Answer:
Gravity causes precipitation in the clouds to fall to Earth. On the ground, gravity influences surface runoff, as water travels from higher to lower elevations. Gravity also influences groundwater because it pulls elements toward the center of Earth. Water, under the influence of gravity, seeps into the ground to form groundwater.
Explanation:
there u go guys thats the sample answer but change it up please. have a good day
In a population of flowers growing in a meadow, C1 and C2 are autosomal codominant alleles that control flower color. The alleles are polymorphic in the population, with f (C1) = 0.8 and f (C2) = 0.2. Flowers that are C1C1 are yellow, orange flowers are C1C2, and C2C2 flowers are red. A storm blows a new species of hungry insects into the meadow, and they begin to eat yellow and orange flowers but not red flowers. The predation exerts strong natural selection on the flower population, resulting in relative fitness values of C1C1 = 0.30, C1C2 = 0.60, and C2C2 = 1.0.
Required:
a. What is the C1C2 genotype frequency among the progeny of predation survivors?
b. What is the C2C2 genotype frequency among the progeny of predation survivors?
c. What is the C2C2 genotype frequency among the progeny of predation survivors?
d. What is the equilibrium C2 allele frequency in the predation environment?
True or dalse. The cell that produces interferon is protected from the infectious agent.
Answer:
True
I hope this helps!
ASAP
A species of Coral snake has a red, yellow and black stripe pattern. One
gene controls if the stripes are thick or thin. Thin (T) is dominant over
thick (t). If two snakes heterozygous for this gene are crossed, what will
be the genotype(s) of their offspring? You may need to use a Punnett
square to answer the question.
Question Progress
OA. TT and Tt
B. TT, Tt, and tt
C. TT and tt
D. All Tt
The genetic attributes of the organism are determined by the genotype. The cross of the heterozygous genes in Coral snakes results in offsprings with TT, Tt, and tt. Thus, option B is correct.
What are genes?Genes are the functional and physical basis of the inheritance that passes from generation to offspring with various traits and attributes. The gene contains a recessive and a dominant allele.
Heterozygous genes are represented as Tt as it contains one dominant and one recessive allele. The cross between the two heterozygous (Tt) Coral snakes is attached to the image below.
From the cross, it can be seen that 75 % of the coral snakes have thin strips while the 25 % of the species have thick strips. The ratios are:
Genotype = 1 : 2 : 1
Phenotype = 1 : 3
Therefore, option b. the genotype(s) of the offspring will be TT, Tt, and tt.
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Do the spinal nerves include the sensory or motor neurons? Where do these neurons enter or exit the spinal cord?
Answer:
hd
Explanation:
The spinal nerves include the sensory or motor neurons sensory neuron → brain → motor neuron → muscles.
What are neurons?Neurons are nerve cells that are specialized to process and transmit information. The brain then processes the information obtained from the sensory neuron and sends another signal trough the motor neuron carrying the message to the muscle.
The spinal cord acts as a nerve center between the brain and the rest of our body and it contains motor neurons that transmits nerve signals from the motor cortex to the body, and the spinal cord also receives all of the sensory information from the periphery of our bodies.
Motor neurons are also known as efferent neurons, they are part of the central nervous system that transmit impulses from the brain or spinal cord to the effector organ (muscles or glands).
Therefore, The spinal nerves include the sensory or motor neurons sensory neuron → brain → motor neuron → muscles.
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____ are thought to be present before vertabrates
Answer:
Jawless fish was present before vertebrates.
Explanation:
Jawless fish has some characteristics of vertebrates and also considered as the ancestor of vertebrates on earth which is similar in appearance with the hagfish. It was present about 500 to 600 million years ago. They consist of cranium but vertebral column is absent. but with the passage of time, evolution occurs and many animals which was the descendant of this jawless fish having vertebral column or backbone in their body.