Answer:
True
Explanation:
I finish e2020! good Lucky
Why is individual II-1 heterozygous according to the answer key. - Pedigrees
In given pedigrees II-1 heterozygous because the man (II-1) that brown-eyed woman marry has brown eye but they have a son (III-1) with blue eye. So, genotype of II-1 will be Bb.
What is pedigrees?A family tree diagram that makes use of standardized symbols. The relationships between family members are shown in a pedigree, which also identifies the members of a family who have particular genetic pathogenic variants, traits, and diseases as well as their current health.
Pedigrees are typically employed to illustrate straightforward dominant and recessive traits. Having a widow's peak hairline, for instance, is dominant. If someone possesses that quality, their pedigree symbol will be shaded in.
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difine an enzyme in biology
Answer: An enzyme is a biological catalyst and is almost always a protein. It speeds up the rate of a specific chemical reaction in the cell. The enzyme is not destroyed during the reaction and is used over and over.
Answer:
hope it helps...stay safe healthy and happy..A prey population consists of individuals with a variety of reaction times. The adaptation that allows some of these animals to react faster would be an example of natural selection if it helps them a. Reduce the mortality rate of the population
b. Reproduce and increase gene frequency in the population
c. Survive and mate
d. Produce offspring that can react at an average speed
The correct answer is option (A) Reduce the mortality rate of the population.
Natural selection is a pressure that causes groups of organisms to change over time. Animals inherit their genetics from their parents or ancestors, and the environment is constantly changing. So, no organism is perfectly adapted to its environment. Thus, natural selection is constantly influencing the evolution of species.
The environment will change, even if a parent was perfectly acclimated to it, leaving the offspring poorly adapted to it. Only the best and fittest organisms can reproduce since there are many species and few resources. Natural selection, which is thought of as the environment and forces acting to prevent organisms from surviving and reproducing, operates against all living things. As a result, living things have the ability to pass on their DNA to the next generation. These DNA sequences are "selected" for by this.
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What is a Lytic infection and What is a lysogenic infection?
Answer:
Infection of a bacterium by a bacteriophage with subsequent production of more phage particles and lysis, or dissolution, of the cell. The viruses responsible are commonly called virulent phages. Lytic infection is one of the two major bacteriophage–bacterium relationships.
Lysogeny, or the lysogenic cycle, is one of two cycles of viral reproduction. Lysogeny is characterized by integration of the bacteriophage nucleic acid into the host bacterium's genome or formation of a circular replicon in the bacterial cytoplasm.
Explanation: hope this helps!
Is this correct? and can you explain why its not incorrect or correct?
Answer:
Yes,Good Bro no it's a joke you re bad
Which phylogenetic tree highlights the most recent common ancestor of all animals with four limbs (where limbs include legs, arms, and wings)
It draws attention to the taxon, or most recent common ancestor, of all tetrapods. The tips and nodes of the tree, respectively, represent groups of descendant taxa and common ancestors of descendants.
The evolutionary connections of biological species are described by the phylogenetic tree, often called phylogeny. The branching pattern of the phylogenetic tree illustrates how a series of shared ancestors gave rise to diverse species or groupings.
The phylogenetic tree helps us understand a person's complete life history or life.
Follow each taxon's lineage back in time (toward the base of the tree) until all the lineages meet to identify the most recent common ancestor of a group of taxa. Their most recent shared ancestor is represented by that node.
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What happens to the 3 carbon sugar that exits the Calvin cycle?
By carbon fixation, 3-PGA molecules are transformed into glucose molecules, which are simple sugar molecules.
It corresponds to the second phase of Calvin's cycle. By carbon fixation, 3-PGA molecules are transformed into glucose molecules, which are simple sugar molecules. Energy for this stage is provided by ATP and NADPH generated during the light-dependent activities of photosynthesis. Thus, the Calvin cycle is a mechanism through which plants convert solar energy into compounds like sugars that may be stored for a long period. ATP and NADPH provide the sugars with their energy.
This procedure is referred to as reduction because 3-PGA molecules get electron transfers to produce glyceraldehyde-3 phosphate.
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How do we know a particular lineage of prokaryote exists in a natural habitat without first isolating and growing it in laboratory culture
The use of DNA-based techniques is one way to ascertain whether a certain lineage of prokaryote occurs in a natural habitat without first isolating and cultivating it in laboratory culture.
These methods allow researchers to identify species of prokaryotes without having to isolate and grow them in culture. The most common DNA-based method is called PCR (polymerase chain reaction) which is used to amplify and detect the presence of specific DNA sequences in a sample. By designing primers specific to a particular prokaryote, researchers can determine if the organism is present in a given sample, even if it is present in very small amounts.
Other methods such as denaturing gradient gel electrophoresis (DGGE) and 16s rRNA gene sequencing can also be used to identify different species of prokaryotes in a sample. These methods allow researchers to determine if a particular lineage of prokaryote exists in a natural habitat without having to isolate and grow it in laboratory culture.
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Can someone help me please (please hurry this is due in 1 minute)
Determine whether each factor of a terrestrial ecosystem is biotic or abiotic.
Trees
Fungii
Sunlight
Soil
Birds
The biotic factors of the terrestrial ecosystems are trees, fungi and birds while the abiotic factors are the sunlight and soil.
What is a terrestrial ecosystem?A terrestrial ecosystem is the type of ecosystem that is found in the earth environment which is made up of both the biotic and abiotic factors.
The biotic factors are those factors that are considered as the living things such as the trees, fungi and birds while the abiotic factors are the non living things found in the ecosystem and they are soil and sunlight.
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All of the following are major sources of nutrient pollution except
a. Agricultural activities
b. Fossil fuel usage by vehicles and industries
c. Storm water discharge into local waterways
d. Acid rain and ozone pollution
Answer:
d. acid rain and ozone pollution
Answer:
a. Agricultural activities
Explanation:
because the other activities are the major sources of pollution. For example.. burning of fossil fuels pollute the air, storm water is a polluted one & it makes the water ways to pollute and the last one is also a pollution which is already shown as pollution in it's sentence.
HELP PLEASE
A population of coyotes lives in a small valley. The coyotes prey mainly on rabbits. The rabbits eat meadow plants that grow in the valley
Each year there are about the same number of coyotes, rabbits, and plants in the valley. One year a drought kills about half of the meadow
plants.
What effect will the drought have on the coyote population in the valley?
O A It will decrease because the rabbits will decrease.
B. It will stay the same because only the plants are affected.
O c. It will increase because there will be more space for us
D. It will decrease because there will be fewer plants for them.
The coyote population in the valley will decrease because the rabbits will decrease.
An ecosystem, also known as an ecological system, is made up of all the organisms and the physical setting in which they live. The nutrition cycles and energy flows connect these biotic and abiotic elements. Photosynthesis is how energy enters the system and is absorbed by plant tissue. Animals play a significant part in the transfer of materials and energy through the system by eating plants and one another.
They also have an impact on the biomass levels of the microbial and plant communities. In addition to facilitating nutrient cycling by transforming nutrients held in dead biomass back into a form that can be easily utilized by plants and microorganisms, decomposers also release carbon into the atmosphere through the breakdown of dead organic matter.
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Which of the following is a key part of psychotherapy?Single choice.
(1 Point)
A. a client lying on a couch in the therapist's office
B.verbal interaction between a therapist and client
C.MRI exam of the brain
D.regular blood pressure readings
Answer:
B: Verbal interaction between a therapist and client
Explanation:
Psychotherapy itself is known as talk therapy. Personal interaction and conversation is key to psychotherapy and overcoming problems presented.
The atmosphere, biosphere, lithosphere, and hydrosphere are considered to be Group of answer choices independent of one another open subsystems closed subsystems exchanging mass but not energy exchanging energy but not mass
The whole earth's atmosphere, lithosphere, hydrosphere, and cryosphere are all included in the geosphere. The area above the Earth's surface is known as the atmosphere.
This includes the air we breathe. The lithosphere, which consists of rocks and mountains, is the solid core of the Earth.
The lithosphere, hydrosphere, biosphere, and atmosphere are the four interconnected "spheres" that make up the Earth's crust. Changes in one of the spheres generally generate changes in one or more of the others since the spheres are so intertwined.
An example of an open system is the ocean. The hydrosphere includes the ocean, and the surface of the ocean serves as the contact between the hydrosphere and the atmosphere above it.
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If a mutation causes you to get a new trait, by how natural selection works, that trait will disappear even if it will help you survive T or F
Answer:
False, natural selection would not cause the mutation to die out unless it harms reproductivity
Explanation:
Natural Selection works through many different aspects, here we see that a creature has developed a mutation. If the creature would be aided with this new found mutation it would not simply disappear. The creature would end up reproducing with similar creatures spreading this new mutation, and this is what natural selection is. Natural selection is when creatures with negitive mutations are unable to reproduce causing their gentic line to die out, while creatures with superior genetics continuously reproduce.
I hope this answer helps!
1. What is the purpose of the lab energy transfer
Answer:
The purpose of this lab is to observe how heat flows through conduction, convection, and radiation.
Explanation:
Answer:
How heats flows past and keep the energy
There are two types of waves: mechanical and electromagnetic. Microwaves, infrared
waves, and radio waves are examples of electromagnetic waves. Which claim is TRUE about
the speed of electromagnetic waves?
A: They are not affected by changes in medium.
B: It is slower in a vacuum than in a medium.
C: In a vacuum, its speed equals half the speed of light.
D: It slows down when it goes from a vacuum to a medium.
Answer: b
Explanation:
PLEASE ANSWER THIS QUESTION ASAP!
Answer:
All answers are in the image
What type is monggo?
Monggo or mung bean are the seeds that belong to the legume family of plants.
Monggo is the another name for the mung bean plant. It is a green colored lentil known for its high nutrition content. The common regions where the cultivation of monggo takes place is East, Southeast and South Asia. The monggo is a legume plant.
Legume is the term that refers to the plants of the family Fabaceae. It is characterized by the presence of seeds inside a pod. These seeds are usually edible. The examples include beans, lentils, and peas. These plant form root nodules for nitrogen fixation.
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Please answer I really need help
Answer:
Monomers
Explanation:
Macromolecules (biomolecules) are polymers; they are polymers made of monomers
Which of the following provides an accurate calculation of the surface area to volume ratio of an HSHS red blood cell, as well as a prediction of its effect on the efficient transferring of oxygen compared to a normal red blood cell
The ratio is 0.89, and the cells are less efficient at transferring oxygen.
Hereditary spherocytosis (HS) is a red blood cell condition that causes the cells to be smaller and spherical rather than the normal flattened, biconcave form. Normal red blood cells have an average diameter of 7.2μm, while red blood cells in people with HS have an average diameter of 6.7μm. The typical surface area of a normal red blood cell is 136μm^2 and its volume is 91μm^3.
Hereditary spherocytosis is a blood condition that runs in families. It occurs as a result of an issue with the red blood cells (RBCs). The cells are not formed like a disc, but rather like a spherical. These red blood cells (known as spherocytes) are more delicate than disk-shaped RBCs.
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PLSS HELP IMMEDIATELY!!! ILL MARK BRAINIEST IF U DONT GUESS OR LEAVE A LINK!
Answer: The answer is A. Increaed use of fossil fuels.
Explanation:
Can plants perform light-independent reactions?
The second and last step of photosynthesis is the process that is not dependent on light are light-independent reactions. It creates organic materials for the plant .
The photochemical process of photosynthesis involves a number of light-independent biochemical events light-independent reactions that result in plant the formation of organic compounds from carbon dioxide. This metabolic pathway is propelled by the energy released from the ATP created during the light reactions. Photosystems I and II, which are both found in the thylakoid membranes of chloroplasts, are plant responsible for using light energy. The light-independent reactions ,chemical energy obtained during the light-dependent processes is used to construct carbohydrate molecules from plant carbon dioxide in light-independent reactions (the Calvin cycle).
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In order to maintain homeostasis, the systems of the body work together to maintain stable internal conditions. Which human body systems are responsible for erouring nutrients are properly absorbed and waste is eliminated from the body?
O Nervous and Excretory
o Respiratory and Digestive
O Circulatory and Respiratory
o Digestive and Excretory
HELP ME!!!
Answer:
o Digestive and Excretory
Explanation:
explain why there is a greater efficiency in supplying plants as human food
Answer:
Does this help?
Explanation:
Plants are very efficient when it comes to supplying for people. Plants not only allow us to breath, but we can also feed off them. We can always grow plants. Planting is also better for the environment. Less people will pay for fruits and vegetables. Even with all the advantages of just supplying plants as human food, it would be almost, if not impossible to feed the entire population all year off salads.
Which is false regarding cell signaling? A. Endocrine signals move via the bloodstream B. Para crime signals are long-lasting C. Para crime signals are used to communicate the nearby cells D. Auto signals bind to receptors on the same cell that released the ligand
Answer:
B. Para crime signals are long-lasting.
The option that's false regarding cell signaling is B. Para crime signals are long-lasting.
Cell signaling is also known as cell communication. It simply means the ability of cells to be able to receive, process, and then transmit signals with itself and the environment.
Cell signaling is vital for some cellular decisions such as cell growth, division, development, etc. During cell signaling, the endocrine signals move via the bloodstream. Also, auto signals bind to receptors on the same cell that released the ligand. It should also be noted that para crime signals aren't long-lasting, they occur for a short period.
In conclusion, the correct option is B.
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What 3 features do all mollusks share?
The three common feature of all molluscs are: presence of mantle, muscular foot and unsegmented body.
Molluscs is the name that refers to the organisms of the phylum Mollusca. These are the animals that are invertebrates. The phylum constitutes the second largest phylum of the animal kingdom. The examples include: snails, oysters, clams, etc.
Mantle is the outer body wall of the molluscs. It is soft and fleshy in appearance. It may sometimes be covered by calcifies plates for strengthening. It covers the visceral mass of the Molluscs. This mantle secretes the calcium carbonate for the formation of shell of molluscs.
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What is the best definition for adaptation?
10 points
Organisms are able to change their biological make up at any time they wish to
Animals are able to change from one organism into another given enough time
The biological mechanism that prevents organisms from adjusting to new
environments or to changes in their current environment
The biological mechanism by which organisms adjust to new environments or to
changes in their current environment
Answer:
The biological mechanism by which an organism adjusts to a new environment or to changes in their current environment
cheese
pepper powder
lettuce
ham
salt
tomato
can you guys tell me if all of this ingredients is colloid,suspension or solution?
Cheese is a colloid.
Pepper powder is a suspension.
Lettuce, ham, salt and tomato are not considered to be a colloid, suspension or solution as they are classified as solid food items.
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There are two types of waves: mechanical and electromagnetic. Microwaves, infrared
waves, and radio waves are examples of electromagnetic waves. Which claim is TRUE about
the speed of electromagnetic waves?
A: They are not affected by changes in medium.
B: It is slower in a vacuum than in a medium.
C: In a vacuum, its speed equals half the speed of light.
D: It slows down when it goes from a vacuum to a medium.
Answer:
d
Explanation: