Answer:
C. 15% 15% 35%
Explanation:
This follows the rules of base pairing. The amount of thymine (T) equals the amount of adenine (A), and the amount of guanine (G) equals the amount of cytosine (C).
Since thymine is equal to adenine and 35% of the bases is thymine, 35% of the bases is also adenine. This gives you a total of 70%.
35% + 35% = 70%
Now you need to figure out how much cytosine and guanine are in the bases. Since 70% of the bases are adenine and thymine, 30% will be cytosine and guanine.
100% - 70% = 30%
Since the amount of cytosine and guanine are equal, divide 30% by 2 to figure out how much each base takes of the total.
30/2 = 15%
Cytosine and guanine each take up 15% of the molecular bases.
Assume that plant weight is determined by a pair of alleles at each of two independently assorting loci (A and a, B and b) that are additive in their effects. Further assume that each allele represented by an uppercase letter contributes 4 g to weight and that each allele represented by a lowercase letter contributes 1 g to weight. If a plant with genotype AA BB is crossed with a plant with genotype aa bb, what weights are expected in the F_a progeny?
A. 1 g
B. 4 g
C. 8 g
D. 10 g
Answer: choice D. 10g
Explanation:
The cross is AABB x aabb so the F1 progeny would have AaBb genotype.
The question states that dominant alleles(uppercase letters) contribute 4g and recessive ones contribute 1g to the weight of the plant.
so for AaBb we would have 4+1+4+1=10g.
Answer:
D.
Explanation:
Which of these molecules does not enter the cellular respiration
pathway?
O glycerol
O fatty acids
amino acids
O glucose
O all of these
Answer:
fatty acid
Explanation:
it has double bonding of carboxylic acid
Brian's eighth grade biology class is conducting a scientific investigation to find out what types of rock the school is built on. The class goes out to collect rocks from an exposure at the edge of the school property. Which scientific process is the class involved in when they do this
Answer:
Gathering evidence.
Explanation:
Scientific evidence refers to the information obtained by research or observation.t This is the root of the scientific method because it's how an investigator evaluates different ideas, theories, or hypotheses. The mechanism of science involves explaining the phenomena we see in the world that match the data one has collected for the purpose. If one's theory doesn't match the evidence, then it needs to be revised. Therefore collecting evidence is a significant part of scientific investigation.
Following Dietary Guidelines
According to the Dietary Guidelines for Americans, which foods should you increase and decrease within your diet?
Sort each food into the appropriate category
Foods to Increase
Foods to Decrease
bacon
salty snacks
salmon
wheat bread
vegetables
sugary drinks
Pls help. I’ll give you brainiest
Answer:
Foods to Increase:
- salmon
- wheat bread
- vegetables
Foods to Decrease:
- bacon
- salty snacks
- sugary drinks
Explanation:
I don't really know how to explain the answers, hope that helped anyway : )
What do all organisms have ?
Answer:
All organisms are capable of reproduction and development
Answer:
Organs, If thats not correct than cells
Explanation:
how can digestive enzymes assist in breaking macromolecules down into smaller subunit?
Answer:
Chemical digestion
Mechanical digestion can only break up the food particles into smaller pieces. A chemical digestion process called enzymatic hydrolysis can break the bonds holding the molecular 'building blocks' within the food together. For example, proteins are broken down into their 'building block' amino acids.
Explanation:
HOPE THIS HELPS : D
Explain the link between climate change and population growth
Answer:
when there are changes in climatic condition for example if the sun becomes to harsh ,unbearable and unfavorable this might cause certain population to migrate from their habitat to a more suiting one
In the human nervous system, the brain is an example of what level of organization? a. cell b. tissue c. organ system d. organ
Answer:
d. organ
HOPE it helps!!!Answer:
The answer is the organ
Explanation:
Respiration is a process where many chemical bonds inside the body break and release energy. This energy is used to perform various activities
such as moving muscles. Explain the energy transformation in this process.
ОА
Chemical energy from broken bonds is transformed into mechanical energy for muscles.
ОВ.
Mechanical energy from broken bonds is transformed into chemical energy for muscles.
OC. Mechanical energy from broken bonds is transformed into electrical energy for muscles.
OD Heat energy from broken bonds is transformed into electrical energy for muscles.
Reset
Next
Answer:
OA
Explanation:
Chemical energy refers to the energy that is released with reactions involving chemicals. Cellular respiration takes glucose(a five carbon sugar) and breaks it down using glycolysis, then makes ATP(adenisine-triphosphate)(an essential chemical to the energy of life) using the krebs cycle and the electron transport train. This is all to get a surplus ATP, which is a useable CHEMICAL ENERGY source. This energy can be diverted to any system in the body, including the muscular system. Then, the muscles are used MECHANICALLY(look at the types of muscle levers in anatomy) to acheive work, thanks to the CHEMICAL ENERGY produced in cellular respiration. Thus, the answer in OA.
Suppose Stephen breeds snakes and wants to optimize production of offspring with both black bodies and brown eyes, which are coded for by two genes with the recessive alleles b and e, respectively. In snakes, B codes for brown bodies and E codes for red eyes. Stephen crosses two heterozygotes that produce 544 offspring. How many of these 544 offspring are predicted to have both black bodies and brown eyes?
Answer:
34
Explanation:
B codes for brown bodies.
E codes of red eyes.
b and e together code for black bodies and brown eyes.
Heterozygous brown body snake would have the genotype Bb.
Heterozygous red eyes would have the genotype Ee.
Individuals that are heteozygous for both trait would have the genotype BbEe.
Crossing two heterozygous individuals:
BbEe x BbEe
Progeny:
9 BBEE
3 B_ee
3 bbE_
1 bbee
Recall that black bodies and brown eyes requires be, hence the ratio of the progeny with black bodies and brown eyes is 1/16.
If the total number of offspring produced is 544, the number predicted to have black bodes and brown eyes would be:
1/16 x 544 = 34
Evolution is change in a population over time and includes the gene pools of that population. How does biogeographic isolation allow for the change of gene pools over time
OPTIONS:
A) biogeographic isolation affects the random changes that take place within gene pools
B) biogeographic isolation affects the changes in gene pools that result from which organisms are breeding
C) biogeographic isolation determines who will win competition for mates
D) biogeographic isolation determines the time that populations will breed
Answer:
A) biogeographic isolation affects the random changes that take place within gene pools
Explanation:
Organisms can become splitted and isolated from each other by biogeographical factors, thereby preventing the isolated population of species from interbreeding with each other. When this occurs, the isolated population, over time, evolve separately and later become distinct from each other leading to a change in the original gene pool.
Biogeographical factors uch as habitat isolation can cause a change in the original gene of a species population which have now become isolated geographically, and thus, evolve separately.
Some scientists who are Christians have developed a theory called ___________ to explain the creation and development of life on earth.
Intelligent Design
fossil formation
relativity
Answer:
Intelligent Design
Some scientists who are Christians have developed a theory called Intelligent Design to explain the creation and development of life on earth.
However, in my opinion its complete nonsense
Which eras ended with a mass extinction?
O A. Paleozoic and Precambrian
O B. Mesozoic and Paleozoic
OC. Mesozoic and Cenozoic
O D. Cenozoic and Paleozoic
B. Mesozoic and Paleozoic eras ended with mass extinctions.
What is Mass extinctions?Mass extinctions are periods in Earth's history when a significant proportion of the planet's biodiversity is wiped out in a relatively short period of time.
These events have occurred several times throughout Earth's history, and they are typically associated with major geological and environmental changes.
The Mesozoic era, which lasted from about 252 to 66 million years ago, ended with the Cretaceous-Paleogene extinction event. This event was likely caused by the impact of a large asteroid or comet, which triggered a range of environmental changes, including wildfires, acid rain, and a nuclear winter-like effect.
The event is most famous for wiping out the dinosaurs, but it also resulted in the extinction of many other species, both on land and in the oceans.
The Mesozoic era ended with the Cretaceous-Paleogene extinction event, which wiped out the dinosaurs and many other species.
The Paleozoic era ended with the Permian-Triassic extinction event, which was the largest mass extinction in Earth's history, and resulted in the loss of approximately 96% of all marine species and 70% of land species.
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is it actually rare to step on an ant? this sounds dumb but I’m curious.
Answer: No
Explanation:
i mean it depends if you live near an ant colony or colonies.
Which corrections should be made to describe photosynthesis accurately? Check all that apply.
(1) Light energy and chemical energy should be switched.
(1) Chemical energy should be changed to mechanical energy.
(3) Plants that contain chlorophyll should not be included.
(3) Oxygen should be changed to carbon dioxide.
(4) Animals and plants should be switched.
Answer:
Light energy and chemical energy should be switched.
Plants that contain chlorophyll should not be included.
Animals and plants should be switched.
Explanation:
We have that for the Question,it can be said that the corrections which should be made to describe photosynthesis accurately will have it at the end defined as
Photosynthesis Is a process an phenomenon where plants possessing chlorophyll and uses sunlight water and carbon dioxide to produce chemical energy.
From the question we are told
Which corrections should be made to describe photosynthesis accurately? Check all that apply.
(1) Light energy and chemical energy should be switched.
(1) Chemical energy should be changed to mechanical energy.
(3) Plants that contain chlorophyll should not be included.
(3) Oxygen should be changed to carbon dioxide.
Generally
The correct definition of photosynthesis is
Photosynthesis Is a process an phenomenon where plants possessing chlorophyll and uses sunlight water and carbon dioxide to produce chemical energy.
Therefore
The corrections which should be made to describe photosynthesis accurately will have it at the end defined as
Photosynthesis Is a process an phenomenon where plants possessing chlorophyll and uses sunlight water and carbon dioxide to produce chemical energy.
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Predict which one of the following organisms will have the highest percentage of unsaturated fatty acid chains in their membranes: Group of answer choices thermophilic bacteria desert iguana humans antarctic fish
Answer:
Humans
Explanation:
Humans are bigger than most beings and some people are extremely obese.
The organisms that have the highest percentage of unsaturated fatty acid chains in their membranes are ANTARCTIC FISH.
Unsaturated fatty acid chains have one or more double bonds, while saturated fatty acid chains do not contain any double bonds.When the temperature decreases, the composition of the phospholipids bilayer membrane becomes more unsaturated to be able to maintain different properties such as homeoviscosity.In consequence, membrane lipids exhibit the highest percentage of unsaturated fatty acid chains during cold acclimation.In conclusion, the organisms that have the highest percentage of unsaturated fatty acid chains in their membranes are ANTARCTIC FISH.
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1. Summarize the six ways the loss of Arctic ice is affecting everyone.
six ways are temperature,coastal communities,food,shipping,wildlife,permafrost
Answer:
Explanation:
Artic Ice are melting due to change in the climatic system as a result of global warming. The active increase in human activity resulting in global warming will continually perpetuate the decrease in artic Ice.
Artic heat help to balance temperature or heat on the earth surface by reflecting heat back into the environment. When the artic Ice is reduced, the amount of heat reflected is also reduces.
Coastal community - a continuous rise in ocean level can lead to flooding which will affect the coastal community surrounding the ocean. An the ocean has been incredible gradually over the pass decades.
Food - Reduction in the artic Ice car Lea to increase heat affect crop growth through damage by heat stresses leading to an increase price rate of food.
Meltng of Ice increase the shipping routes causing more harm through ship wrek.
Melting of Ice can leave to loss of animals that depends on it for survival.
Permafrost occurs when the ground is permanently block or frozen leading to accumulation of methane gases that causes global warming.
Do all vertebrates have the same number of bones? Please answer
Answer: no
Explanation: vertebrates vary in sizes and shapes! humans have 206 bones but when born they have 300!
wild right?
Answer:
no
Explanation:
humans have 206 bones when you where born you have 300
_________10. Which of the following groups of plants carry out light dependent and light independent reactions of
photosynthesis in separate cells?
A. Plants with chlorophyll C. C3 – plants
B. CAM Plants D. C4 – plants
Answer:
Plants with chlorophyll
which structure is found in the cytoplasm of a prokaryotic cell but is not found in the cytoplasm of a eukaryotic cell
Answer: DNA
is found in the cytoplasm of a prokaryotic cell. Not found in the cytoplasm of a eukaryotic cell.
1. What are the two types of digestion?
Answer:
Mechanical digestion
Chemical digestion
Explanation:
Food is physically broken into smaller parts. For instance, by chewing.
Food is broken down by acids and enzymes into its basic units.
Which of the following statements is true regarding anabolism?
Choose 1 answer:
А) Energy is released during anabolic reactions.
B) In anabolism, larger molecules are made from smaller molecules.
C) Anabolism is the sum of all the chemical reactions in a cell.
D) Anabolism uses the process of hydrolysis to join molecules together.
Answer:
B) In anabolism, larger molecules are made from smaller molecules.
Explanation:
Anabolism is a metabolic process that uses up energy that is produced to build up complex and larger molecules from smaller ones. It is part of the chemical process that takes place in a cell.
For example, photosynthesis is an anabolic process, in which the cell forms larger molecules such as glucose from smaller molecules like water and carbon dioxide, with the use of solar energy.
Option B is true regarding anabolism.
What is the role of the pancreas
Answer:
It converts food you consume into body fuel for our cells.
Answer:
It produces digestive enzymes
Explanation:
Just took the quiz
Which is a factor that determines whether a molecule can cross a cell membrane?
Answer:
if a molecule is too large it cannot pass. also it depends on the concentration of a specific substance inside the cell. similarly, if a molecule is polar it cannot penetrate the phospholipid bilayer.
there are proteins that work as channels and pumps that allow these molecules to pass
Explanation:
The polarity of the molecule determines whether a molecule can cross a cell membrane. The correct option is D.
What is polarity?The asymmetric establishment of several cellular components, such as the plasma membrane, cytoskeleton, or organelles, is alluded to as cell polarity.
The polarity of the molecule determines whether a molecule can cross a cell membrane as the cell membrane is composed of phospholipids which are polar in nature.
Thus, the correct option is D.
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The missing options of the question are:
Speed.Texture.Mass.Polarity.The image to the left shows Earth's major plates. A
geologist is studying a plate boundary indicated by the
arrow
Fill in the blank to complete the statement about the
plate boundary
This boundary is between the African Plate and the
Plate
Answer:
Its Eurasian
Explanation:
This boundary is between the African Plate and the Eurasian Plate.
This boundary is known as a convergent plate boundary. Convergent plate boundaries occur when two tectonic plates move toward each other.
In the case of the African Plate and the Eurasian Plate, they are colliding, and one plate is being forced beneath the other in a process called subduction.
As the plates converge, the intense pressure and friction cause seismic activity, leading to earthquakes and volcanic eruptions in the region.
These collisions also result in the formation of mountain ranges, such as the Himalayas, as the crust is pushed upward and folded.
Studying this convergent plate boundary is essential for understanding the geological processes shaping our planet's surface and the associated hazards like earthquakes and volcanoes.
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proof that something is true is called
evidence
opinion
Obelief
claim
Answer:
Evidence
Explanation:
Evidence is proof that something is true
the brain is located in the ______ cavity?
Answer:
cranial Cavity
Explanation:
The brain occupies the cranial cavity, which is lined by the meninges and which contains cerebrovascular fluid to cushion blows.
Solid, gas, and liquid Which states of matter have a set shape? Explain why this is, based on the animation you observe for the different states of matter. Which states of matter have a set volume? Explain this based on the animations you observe for the different states of matter?
Answer:Solid has a set shape. Solid can move but gas and liquid is more flexible than solid. Solid has a fixed volume while liquid and gas takes the volume of its container. Solid stays in one place while gas and liquid is flexible.
Explanation:
Name the mandibular motion resulting from the following combinations of muscle contractions: ________
a) B Masseter, B Temporalis, B Medial Pterygoid
b) L Lateral Pterygoid, R Masseter
c) B Lateral Pterygoid, B Medial Pterygoid
d) B Lateral Pterygoid, B Digastric
Answer:
c) B Lateral Pterygoid, B Medial Pterygoid
Mandibular motion is by combinations of B Lateral Pterygoid, and B Medial Pterygoid contraction which controls the mandible's closure, hence option c is correct.
What are muscle contractions?There are several of these, including the masseter and temporalis muscles, which control the mandible's closure; the medial pterygoid muscle, which controls the mandible's closure and lateral movements.
The lateral pterygoid muscle, controls the mandible's opening, deviation to either side, and anterior movement.
The lateral pterygoid muscles on the side that is contralateral to the excursion are contracted to move the jaw to one side (laterotrusion), with the help of the posterior temporalis muscle on the same side (ipsilateral).
Therefore the combination of B Lateral Pterygoid, and B Medial Pterygoid creates mandibular motion, hence option c is correct.
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What happens during telophase of the cell cycle? A. Chromosomes are pulled apart. B. Chromosomes line up. C. Chromosomes uncoil and the nucleus reappears. D. Chromosomes condense
Answer:
C. Chromosomes uncoil and the nucleus reappears.
Explanation:
Answer: C. Chromosomes uncoil and the nucleus reappears.
Explanation:
Telophase is the final stage of the cell cycle which involves the separation of daughter cells.
Hope it helps .
