Answer:
Answered below
Explanation:
In the 1920s, Russian Chemist A.I Oparan and English geneticist Haldane, first conceived and developed independently, the theory of Primordial soup. The primordial soup theory suggests that life began in a pond or ocean as a result of the combination of the right amounts of chemicals from the atmosphere and some form of energy, under the right conditions, which resulted in the production of amino acids, the building blocks of proteins from which life evolved. This is suggested to have happened 3 to 4 billion years ago.
This theory was tested by Chemist Stanley Miller and Physicist Harold Urey, in 1950. They mixed gases thought to be present in the primitive earth and electrically sparked the mixture, which resulted in the formation of amino acids.
what is convection?
Answer:
talvez seja outra coisa importante
O blood is recessive to AB blood. What possible blood types could result from parents with O and AB Blood?
Answer:
Parents having blood type AB and O can produce offsprings having blood group A or Bbut not O
Explanation:
The possible blood type that could result in the offspring is it can be either A or b but not O as O is recessive.
What is blood?Blood is defined as a fluid that distributes oxygen and nutrients to cells while also removing carbon dioxide and other waste materials.
There are three types of blood cells.
RBC - RBC stands for red blood cells. They are defined as a kind of blood cell present in the blood that is produced in the bone marrow. WBC - WBC is also called white blood cells. They are defined as a kind of blood cell present in the blood and lymph tissue that is produced in the bone marrow.Platelets - Platelets are defined as the cells that circulate in our blood and link together when they detect damaged blood arteries.Thus, the possible blood type that could result in the offspring is it can be either A or b but not O as O is recessive.
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You are studying a population of ground squirrels. You trap 100 individuals and find 9 that have a light colored coat, and the rest have a dark coat. You know that light coat color is recessive in ground squirrels. Assume HWE.
The question is incomplete. Here is the complete question.
You are studying a population of ground squirrels. You trap 100 individuals and find 9 that have a light colored coat and the rest have a dark coat. You know that light coat color is recessive in ground squirrels. What is the allele frequency for the light coat allele and the dark coat allele? How many of the dark coated individuals do you expect to be heterozygotes at the coat color gene? Assume the population is at H-W equilibrium.
Answer: Allele frequency for light coat: q = 0.3;
Allele frequency for dark coat: p = 0.7;
There will be 42 heterozygote;
Explanation: A population in H-W equilibrium is a population which doesn't change from one generation to the next if there are no disturbing factors, as migration or mutation.
It follows the equation: [tex]p^{2}+2pq+q^{2}=1[/tex].
p represents the frequency of the dominant allele;
q represents the frequency of the recessive allele;
2pq represents heterozygote individuals;
The sum of frequencies of both alleles must be 1, i.e.: [tex]p+q=1[/tex]
For the population of squirrels:
Frequency of recessive allele[tex]q^{2} = \frac{9}{100}[/tex]
[tex]q = \sqrt{\frac{9}{100}}[/tex]
q = 0.3
Frequency of dominant allele[tex]p+q=1[/tex]
[tex]p=1-q[/tex]
[tex]p=1-0.3[/tex]
p = 0.7
Frequency of heterozygote2pq = 2*0.7*0.3 = 0.42
In a population of 100 individuals: 0.42*100 = 42
The allele frequency for the light coat is 0.3; for the dark coat is 0.7.
It is expected to have 42 heterozygote individuals in this population.
What amino acids do trypsin and chymotrypsin cut at?
Answer:
Trypsin cuts at lysine and arginine amino acid residues at the carboxyl end. Chymotrypsin cuts at tryosine , phenylalanine, and tryptophan amino acid residues at the carboxyl end.
Explanation:
Trypsin and chymotrypsin are known as proteolytic enzymes which are actively involved in the digestive system. They are both secreted by the pancreas and are majorly involved in the breakdown of protein in the small intestine.
Trypsin cuts at lysine and arginine amino acid residues at the carboxyl end. Chymotrypsin cuts at tryosine , phenylalanine, and tryptophan amino acid residues at the carboxyl end.
If you use a cladistic approach (organizing taxonomic groups by clades) in grouping organisms together, the resulting classification scheme:
Answer:
The classification scheme is ancestor.
Explanation:
In cladistic approach is a type of classification in which organisms are classified on the basis of their common ancestor. Those organisms are placed in one group which have common ancestor and share same characteristics or which are evolved from a common ancestor. With the passage of time changes occurs within the body of organisms so these organisms are different from one another in physical structure but have a common ancestor.
Need Help!!! 30 points! You are monitoring coral growth on a specific site for several months. Over time, you notice that some of the coral colonies are beginning to turn white and die. What process could you infer is happening on the coral reef site?
(A) The coral reef is experiencing succession, so over time the coral will continue to die off gradually as the zooxanthellae algae leaves the coral polyps.
(B)The coral reef is experiencing succession, so the coral will continue to die off quickly as the zooxanthellae algae leaves the coral polyps.
C) The coral reef is experiencing climate change, so the rise in ocean temperatures is causing the coral to bleach as the zooxanthellae algae leaves the coral polyps.
(D) The coral reef is experiencing climate change, so the coral will die off from seasonal variation, which has no impact on zooxanthellae algae in the coral polyps.
Answer:
B) The coral reef is experiencing succession, so the coral will continue to die off quickly as the zooxanthellae algae leaves the coral polyps.
The coral reef is experiencing succession, thus as the zooxanthellae algae departs the coral polyps over time, the coral will continue to gradually die off. Therefore, option (B) is correct.
What is succession in coral reefs?When several living things in a particular area undergo succession, it doesn't matter what time of year it is. The destruction of a portion of a shallow reef by a boat might be one of the numerous instances of succession in coral reefs seen all over the world.
Since the coral reef is undergoing succession, when the zooxanthellae algae leave the coral polyps, the coral will continue to quickly decline. The coral is bleaching as the zooxanthellae algae leave the coral polyps as a consequence of climate change harming the coral reef. Seasonal changes will cause the coral to die off since the coral reef is experiencing climate change. The coral polyps' zooxanthellae algae are unaffected by this.
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why would the brain cell need to last for long?
Answer:
Because it is important to support the body to function properly
Organisms that live in freshwater and marine biomes have developed unique adaptations that aid in their survival. Which of the following adaptations would be the most beneficial to wading birds?
a.
dense feathers
b.
webbed feet
c.
long, light legs
d.
waterproof feathers
Please select the best answer from the choices provided
A
B
C
D
Answer:
its c
Explanation:
The adaptations would be the most beneficial to wading birds long, light legs.
What is adaptation?The biological process by which organisms adapt to new environments or modifications in their current environments is known as adaptation in evolutionary theory.
Even though adaptation was a topic of discussion among scientists before the 1800s, Charles Darwin and Alfred Russel Wallace did not create the theory of natural selection until then.
Wallace thought that adaptation of organisms to shifting environmental conditions was somehow related to the evolution of species. Wallace and Darwin both went beyond basic adaptation when formulating the notion of evolution by natural selection by describing how organisms adapt and evolve.
Therefore, The adaptations would be the most beneficial to wading birds long, light legs.
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PLS HELP ME QUICK!!!!
Figure (13) shows the digestive system with parts
labelled as A, B, C, D and E.
a) Identify the parts where digestive juices are
not produced.
b) What is the substance in C which helps the
digestive juices to act? Digestion of which
component of food happens here?
c) What is the function of part E?
d) In which part does digestion of food
complete?
e) Name the gland present just below part C.
What is its function?
HELP ME IN THIS QUESTION PLS!!
Answer:
a) esophagus and intestines
b) the acid in the stomach helps the digestive juices to act by making the medium in the stomach acidic
c) it helps in getting rid of waste substances(water,bile pigments and sloughed off cells) and bacteria
d) colon
e) pancreatic glands
it produces juices that help breakdown food and hormones that controls blood and sugar levels
Explanation:
photosynthesis needs a supply of CO2, H2O and sunlight. Wher do these resources come from?
Answer:
CO2 = Humans
H2O = Soil
Sunlight = Sun
Explanation:
Plants get CO2 from humans after respiration has occurred . The take the carbon that humans breathe out from the atmosphere.
Plants get H2O from the soil. The plants root absorb the water in the soil.
Plants get sunlight from the sun. Sun rays are used by plants to go through the process of photosynthesis.
Answer:
Carbon dioxide and water are released during respiration and used by plants during photosynthesis and sunlight is obtained from the sun.
Explanation:
Photosynthesis and respiration are the two processes that take place simultaneously and take the products of each other as their reactants.
Complete the sentences by matching the names of trees to the appropriate blanks. To do this, drag the names on the left into the appropriate blanks in the sentences on the right.
Match the words in the left column to the appropriate blanks in the sentences on the right. Terms may be used more than once.
cedar mango elm maple pine
1. Evergreens are plants that maintain their leaves in all seasons and include trees such as _________, _________ , and _________.
2. Deciduous trees lose their leaves seasonally and include trees such as _________ and _________.
3. Hardwoods reproduce using flowers and have broad leaves: hardwoods include trees such as _________, _________ , and _________ .
4. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers include _________ and _________ .
Answer:
1. cedar, elm and pine
2. Mango and maple
3. elm, maple, and Mango
4. cedar and pine
Explanation:
1. Evergreen planst are those plants that has leaves throughout all the seasons and example of evergreen trees are cedar, elm and pine.
2. Deciduous trees are the trees that shed their leaves seasonally and inlcude trees such as mango and maple.
3. Hardwood is related to the dicot trees having broad leaved temperate and include trees such as elm, maple, and Mango.
4. Conifers are the vascular land plant having thin and needle like leaves and include cedar and pine.
Hence, the correct answer is:
1. cedar, elm and pine
2. Mango and maple
3. elm, maple, and Mango
4. cedar and pine
HELPPPP (25 points)
Identify this
When cleaning a blur use cloth towels instead of paper towels
Answer:
yes that is better for the environment and more efficient
Explanation:
n
an insect population is growing in such a way that the number in each generation is approximately 1.5 times that of the previous generation. if there are 100 insects in the first generation, approximately how many insects will there be in the fourth generation
Answer:
Approximately 338
Explanation:
Since each generation of the insect is approximately 1.5 times that of the previous generation. Therefore,
Population of insect in the first generation = 100
Population of insect in the second generation = 1.5 × 100
= 150
Population of insect in the third generation = 1.5 × 150
= 225
Population of insect in the fourth generation = 1.5 × 225
= 337.5
The population of insect in the fourth generation is approximately 338.
what food group is a bun
Answer:
carbohydrates
Explanation:
(iii) List TWO structural differences between this polysaccharide and glycogen.
[2 marks]
Answer:
Cellulose, starch, and glycogen are all polymers of glucose, but differ in form and function because of the optical isomer involved, the length of the polymers, and the degree of branching.CELLULOSE is an unbranched, long chain glucose polymer held by ß-1,4 glycosidic bonds. The straight, tightly packed chains give cellulose high tensile strength and resistance to hydrolysis.
STARCH is a mixture of two polysaccharides: amylose (unbranched with alpha-1,4 glycosidic bonds) and amylopectin (branched with alpha-1,6 glycosidic bonds). The alpha-1,4 glycosidic bonds and more branched nature of starch account for ith physical properties; starch is powdery and more easily hydrolyzed than cellulose, which exists as tough microfibrils.
GLYCOGEN, like starch, is a branched polymer. It is similar to amylopectin, being composed of alpha-glucose molecules, but it is larger and there are more alpha-1,6 links. This makes it highly branched, more soluble, and more easily hydrolized than starch.
Please mark brainliest!
Answer:
polysaccharides have coil and long branch while glycogen has short chain.
Explanation:
polysaccharides have coil and long branch while glycogen has short chain.
Determine what organism fits the following niche: Heterotroph, non-motile, spores.
A. Ferns
B. E. coli bacteria
C. Fly Cap mushroom
D. Arctic Hare
Answer:
C. Fly Cap mushroom
Explanation:
All fungi are heterotrophic organisms because they obtain food and energy from external sources. Moreover, fungi are non-motile since they don't move. Finally, these organisms produce both sexual and asexual spores which are dispersed by wind and water.
On the other hand, the mushroom is the body of a fungus that grows on the soil, generally in humid and shady areas. The fly agaric mushroom is one of the most recognizable species of fungus.
A river contains several beaver dams that are constructed from tree limbs and mud. If other beavers move to this area to build a dam, what is one need for which they are most likely competing? ability to find a mate area with enough sunlight space adequate for building a shelter water flowing through the river
Answer:
The answer for Edge is C: space adequate for building a shelter
Explanation:
the person above is not very smart or kind
Answer:
C. space adequate for building a shelter.
reason: I want you to get the answer right and not fail :)
The amount of energy available in a particular ecosystem is most closely linked to what?
Answer: b
Explanation:he amount of energy available in a particular ecosystem is most closel
What would you think would happen if you reduce the incubation time to 30 minutes?
Answer:
Enzymatic activities is usually efficient when it happens at an optimum temperature. This temperature aids its proper functioning and too much of heat could as well denature the enzyme.
When you reduce the incubation time of an enzyme to 30 minutes , the enzyme may or may not have enough time to reach the amount of free energy needed to drive the enzymatic reaction.
According to the Linnaean system, in which order are you?
g Describe the structure of Hemoglobin. Does the binding of oxygen involve the direct interaction with the polypeptide chain
Answer:
Hemoglobin is an iron-containing protein present in the blood that functions for transportation of oxygen to different body cells..
Each hemoglobin molecule have tetrahedral structure consist of four heme groups surrounded by a globin group. Heme, is composed of porphyrin (ringlike organic structure) which is attched to an iron atom. There are four iron atoms in each molecule of hemoglobin that binds with four oxygen atoms and globin carry two linked pair of polypeptide chain.
The oxygen reversibly binds with the polypeptide chain and the process called oxygenation.
How could this statement be revised to make it a hypothesis? Fish meal is safer than artificial fertilizers, but it does not make plants grow. Fish meal is a better fertilizer than artificial fertilizer because fish meal is natural. Plants that are fertilized with fish meal will grow taller than plants that receive artificial fertilizer. Plants that receive artificial fertilizer will be better than plants that receive fish meal.
Just take out the fluff.
Plants that are fertilized with fish meal will be healthier for plants than the plants that receive artificial fertilizer.
Or make one of those If, Then, Because statements.
If a plant is fertilized with fish meal rather than artificial fertilizer, then the plants will be overall healthier because fish meal is natural compared to the artificial fertilizer.
Answer:
C
Explanation:
What are the three parts that make an amino acid?
During the formation of a feather, a tube-like _____ appears as a result of early induction events within the dermal layer of the wing surface.
Answer:
During the formation of a feather, a tube-like __FOLLICLE___ appears as a result of early induction events within the dermal layer of the wing surface.
Explanation:
A population _____ follows a period of _____. decline; overshoot increase; overshoot increase; scarcity scarcity; dieback
Answer:
Hey there!
A population increase follows a period of scarcity.
With more people, the food and water resources get scarce, and isn't always enough for everyone.
Let me know if this helps :)
In the Landolt-C acuity test, the average threshold for accurately identifying the position of the gap in the C-like character was 0.75mm in size, at a distance of 3000mm. What angle is subtended by the gap at this acuity threshold? Show your working and give your answer in Minutes of arc.
Answer:
0.859 minutes of arc
Explanation:
The arc length for a given radius and angle in radians is ...
s = rθ
So, the angle is ...
θ = s/r
For the given geometry, the angle in radians is ...
θ = (0.75 mm)/(3000 mm) = 0.00025 radians
In minutes of arc, this is ...
(0.00025 radians)(60 minutes/degree)(180 degree/(π radians)
= (0.0025)(60)(180)/π minutes
≈ 0.859 minutes
The angle subtended is about 0.859 minutes of arc.
Homer notices that his shower is covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the green slime. Homer decides to check this this out by spraying half of the shower with coconut juice. He sprays the other half of the shower with water. After 3 days of "treatment" there is no change in the appearance of the green slime on either side of the shower. Group of answer choices Control Group [ Choose ] Independent Variable [ Choose ] Dependent Variable [ Choose ] Constant [ Choose ]
Answer:
The requirements in the question are not clear enough, fortunately, I found a matching complete question:
Homer notices that his shower is covered in a strange green slime. His friend Barney tells him that coconut juice will get rid of the green slime. Homer decides to check this out by spraying half of the shower with coconut juice. He sprays the other half of the shower with water. After 3 days of "treatment", there is no change in the appearance of the green slime on either side of the shower.
1. What was the initial observation?
Identify the-
2 Control Group
3 Independent variable
4 Dependent variable
5. what should Homer's conclusion be?
Answer:
1) initial observation: growth of a strange green slime in the shower
2) Control Group: Half of the shower that was sprayed with water
3) Independent variable: volume of coconut juice sprayed
4) Dependent variable: disappearance of the green slime
5) spraying coconut juice is not effective when trying to get rid of slime in the shower after 3 days
Explanation:
The question wants to test your ability to interpret an experiment and identify the various components in an experimental design. Hence, I will explain the major concepts found in en experimental design:
Initial observation: These are the factors that precede the initiation of an experiment, and it is what the experiment seeks to change or support. In this case, the observation of slime in Homer's bathroom initiated the experiment.Control Group: The control group in an experiment is the group that does not receive treatment or intervention by the researcher, and serves as a benchmark for measuring the change occurring in the treatment group. In this example, the half of the bathroom sprayed with water, did not receive any intervention which is spraying with coconut juice. Independent variable: These are the variables that are completely under the control of the researcher and can be varied at will. The volume of coconut juice sprayed is completely under Homer's cntrol.Dependent variable: The dependent variable is the variable that changes or is expected to change as a result of the changing of the indepenedent variable. The outcome is outside the control of the researcher. Here, the disappearance of the slime is the dependent variable, because it depends on the spraying of coconut juiceConclusion: The conclusion is a statement made as a result of the observed results of the experiment. In this case, there was no change on the slime in the bathroom after three days of spraying with coconut juice8) According to the illustration at right, what process is indicated
by the arrows labeled B?
A. Evaporation
B. Precipitation
C. Infiltration
D. Runoff
Answer:
I think it's "D''
Explanation:
i need help.. kinda hard but 30 points.. will give brainliest
Answer:
I hope this helps u
Explanation:
1- a. natural law means a law which exists naturally by nature and is not created by the human beings
b. theory is a bunch ideas linked to together in way so that it explains something.
2- Objective lens are important as it helps In gathering the light and produces a focus to properly focus on the speciman.
SORRY IF IT NOT GOOD ENGLISH IS NOT MY FIRST LANGUAGE