Answer:
Defining Characteristics of Cross-Sectional StudiesThe study takes place at a single point in time.It does not involve manipulating variables.It allows researchers to look at numerous characteristics at once (age, income, gender, etc.)It's often used to look at the prevailing characteristics in a given population.Cross-sectional studies help researchers to observe a number of characteristics at a single time.
What are cross-sectional studies?The study of data collected by the study of a population from a single point in time is referred to as a cross-sectional study. The participants for this kind of study are selected from the population under observation.
The participants have to meet certain criteria depending on the various variables that are of interest in the particular study.
This is a common kind of study used in the field of developmental psychology. This method is also used in areas like education, social science, etc.
These kinds of studies are categorized as observational studies. Their research falls under the category of descriptive research. This means that they can only report the occurrence of a phenomenon and not its cause.
Therefore, cross-sectional studies are used by researchers to observe a number of characteristics at a single time.
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In what segment(s) of the digestive tract (mouth, stomach, small intestine) does chemical digestion occur for each macromolecule type?
A carbohydrates
B lipids
C Proteins
Carbohydrates: Mouth and stomach
Lipids: stomach and small intestine (mostly)
Proteins: stomach
why is it important for the skull to have holes through the bone
Answer:
it is important for the skills to have hole thought the bone because it is used to relieve pressure on the brain when fluid, such as blood builds up and starts to compress bone tissues
which portion of the fibula articulates with the talus?
Answer:
The distal end of the fibula forms the lateral malleolus, which forms the easily palpated bony bump on the lateral side of the ankle. The deep (medial) side of the lateral malleolus articulates with the talus bone of the foot as part of the ankle joint.
Explanation:
Q6.7. If a person is heterozygous for the triangle32 allele of the CCR5 gene, how many of the four daughter cells produced by have the3
Given the characteristics of hereditary genetics, if a person is heterozygous for a given allele, of the four daughter cells produced, the amount that would have the gene is dependent on the spouse's genetic makeup but ranges from 50-100%.
When we say that an individual is heterozygous for a given trait, we mean that of the two alleles that this individual possesses for the given trait, one is of the desired type and one is not. Whereas an individual who is hom-ozygous for a given trait will have both alleles of the same kind.
For example, if we were to look at the allele for blue-colored eyes, a heterozygous individual will have one allele which corresponds to blue coloration, and one allele that corresponds to another color, and a hom-ozoygous will have both alleles for blue eyes. In order to accurately predict the expression of the gene in the offspring of an individual, we use a punnet square (see attached image).
Assuming that the allele in question is dominant in nature, this allows us to see that of the four daughter cells of an individual that is heterozygous for the given allele, the number that will have the triangle32 allele are:
50% (2) if crossed with a spouse who does not have the allele75% (3) if crossed with a spouse who is also heterozygous for the allele100% (4) if crossed with a spouse who is hom-ozygous for the alleleIn conclusion, we can say that the outcome of the cross is entirely dependent on the genetic makeup of the spouse, as well as the dominant or recessive nature of the allele in question, but can accurately predict an outcome in the range of 50-100%.
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please help im timed!! ill make you brainliest!!
Answer:
the answer would be A
Explanation:
what does the gallbladder do in the digestive system
can someone please help me
Prokaryotic:
1-10 microns smaller cell type (very small)no major organelles (when you hear it has organelles, think eukaryotes almost every time)simple (much simpler than eukaryotes because prokaryotes are usually a single cell)
Eukaryotic:
10-100 microns; larger cell type (definetely larger than prokaryotes because they have more complicated organelles to make room for inside)complex (can do a lot more than prokaryotes can)major organelles (huge difference)Both:
cell membrane (both have this for a cell border)cytoplasm (it's like a liquid to hold everything, both have it)nucleic acid (EVERYTHING ALIVE USES DNA, and that's what NA stands for)ribosome (this is used to make proteins. They both do this)Explain how a change in the sequence of nucleotides in a strand of DNA might cause
a protein to malfunction.
Answer:
As a result of a change in the sequence of nucleotides in a strand of DNA (Deoxyribonucleic acid), the amino acids also change in the final protein which leads to protein malfunction. If insulin does not work correctly, it may not be able to bind to the insulin receptor. Hope this helps! <3
What was Mendel's most significant conclusion from his research with pea plants?
Mendel's most significant conclusion from his research with pea plants is that Traits are inherited in discrete units and are not the results of blending.ʺ The correct option is B)
What was Mendel's law?Mendel Gregor was s scientist and a botanist. He gave three laws of inheritance. The three laws are of very importance to the field of genetics.
The law of inheritance and the law of segregation say that the traits in the other generation are always passed down segregated, not blended. The traits are just dominant and recessive in the generations.
Thus, the correct option is B) Traits are inherited in discrete units and are not the results of blending.ʺ
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Your question is incomplete. The complete question probably is given below:
A) There is considerable genetic variation in garden peas.
B) Traits are inherited in discrete units and are not the results of blending.ʺ
C) Recessive genes occur more frequently in the F1 than do dominant ones.
D) Genes are composed of DNA.
E) An organism that is homozygous for many recessive traits is at a disadvantage.
Answer:
Traits are inherited, one from the mother and one from the father.
I need help with 8 and 9
Answer:
Explanation:
need better picture to see
where do you have cartilage in your body?
Answer:
Cartilage is the main type of connective tissue seen throughout the body. It serves a variety of structural and functional purposes and exists in different types throughout our joints, bones, spine, lungs, ears and nose.
Charles Darwin thought that evolutionary change was gradual, continuous change over long periods of time. This rate of evolutionary change is referred to as:
A. Punctuated equilibrium
B. Gradualist if equilibrium
C. Phyletic gradualism
D. Phyletic punctuation
Answer:
A. Punctuated equilibrium
Explanation:
Charles Darwin understood that evolution was a slow and gradual process. By gradual, Darwin did not mean "perfectly smooth," but rather, "stepwise," with a species evolving and accumulating small variations over long periods of time until a new species was born.
_______ bonds form when water is removed to hold
Answer:
peptide bond OR dehyrdration synthesis (this is mainly for bonding monomers to polymers..so its peptide bond)
Explanation:
Answer:
Hello!!
A peptide bond forms when water is removed to hold.
Hope this helps!!
how are dna fragments separated on an agarose gel during electrophoresis?
Answer: the smaller particles will move further down the gel
Explanation:
DNA is negatively charged because of the negative charges on the phosphate backbone. What you do in an electrophoresis is basically put DNA particles in something similar to Jello, and then put a positive charge at the far end of the gel.
All of the negatively charged DNA is attracted to the positive far end. However, the smaller pieces of DNA will be less tangled in the gel, and can reach the end much quicker.
This allows you to determine the large vs smaller particles basically
Using your own words, describe in detail what you learned about Earth's atmosphere. Edg
Explanation:
earth surface is the part of the water or land that touches the air above it.
Explain why the crossbreeding of bison and cattle is both a benefit and hindrance to conservation efforts aimed at protecting bison genetic diversity.
Answer:
While the bison gene pool is currently much healthier than that of the cheetah, only one herd among the 4% of all protected bison herds has no known cattle ancestry. Cattle ancestry has helped boost the total population of bison and has increased such herds’ genetic diversity, but those herds do not help protect the bison’s original gene pool.
Explanation:
Possible Answer in Edge
Answer:
While the bison gene pool is currently much healthier than that of the cheetah, only one herd among the 4% of all protected bison herds has no known cattle ancestry. Cattle ancestry has helped boost the total population of bison and has increased such herds’ genetic diversity, but those herds do not help protect the bison’s original gene pool.
Explanation: Exact answer on edge
i will give brainliest
We have been talking about plant and animal cells over the past couple weeks. Plant cells have two organelles that animal cells do not contain. Name the two organelles that can be found in plant cells but not in animal cells and describe what each of those organelles do. Please answer in at least 5 complete sentences!
Answer:
plant cells have chloroplasts and a cell wall. (they also have one large central vacuole.)
Explanation: Chloroplasts are found only in plant cells. Chloroplasts convert energy from the sun into sugar (glucose). The chloroplast is also where photosythesis happens in the plant cell. The cell wall is also only found in a plant cell. The cell wall protects and mantains the shape of the cell. And you don't have to put this one but the central vacuole is just one big vacuole in a plant cell that stores mainly water and nutrients since plant cells require more water to function, whereas in animal cells they have multiple small vacuoles.
Muscle fatigue occurs when the cells run out of oxygen. Without oxygen present the animal
switches to
Answer:
Muscle cells can continue to produce ATP when oxygen runs low using lactic acid fermentation. However, this often results in muscle fatigue and pain. Many yeast uses alcoholic fermentation to produce ethanol.
i need answer please
Answer:
The fluid mosaic model describes the structure of the plasma membrane as a mosaic of components —including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character. ... The proportions of proteins, lipids, and carbohydrates in the plasma membrane vary with cell type.
Explanation:
in terms of enzyme nomenclature, what is a k system?
Is it lipids , carbohydrate, protein , or nucleic acid ? Please hurry !
Which of the following doesn't increase the amount of CO2 in the atmosphere?
Answer:
trees and plants don't increase the amount of co2 in at atmosphere
Explanation:
easy, because of photosynthesis plants and trees need co2 to grow so they take. hahahahahahaha
Answer:
any plant
Explanation:
Plants suck up CO2 and release O2
what molecules are needed to maintain homeostasis in biosphere 2
Answer:
What molecules are needed to maintain homeostasis?
Homeostasis is maintained by many cellular processes that require ATP. Aside from enzymes the make and break bonds, other proteins that use ATP include protein pumps that move salts across a membrane.
Explanation:
Don't forget to ❤️❤️❤️
#CarryOnLearningA regular, unexcited carbon atom with an atomic number of 6 would be expected to have how many electrons?
question 12 pls!
Answer:
4 if I am not mistaken
Explanation:
how is the energy that earth absorbs different from the energy that earth emits
Answer: thats geology not biology
Explanation:
Energy that earth absorbs different from the energy that earth emits is called geology.
What is Geology?The word geology means 'Study of the Earth'.
It is also known as geoscience or earth science, Geology is the primary Earth science and looks at how the earth formed, its structure and composition, and the types of processes acting on it.
Geology is concerned with the history of the earth over the course of its 4.5 billion year life. By studying the structures of the earth we can unlock its hidden past and anticipate its future.
All levels of schooling include geology. The study of geology fosters analytical abilities, a global perspective on the globe and its interconnected systems, and a grasp of numbers and maps.
Therefore, Energy that earth absorbs different from the energy that earth emits is called geology.
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In guinea pigs, smooth coat (S) is dominant over rough coat (s). If an SS guinea pig is crossed with an ss guinea pig, what possible outcome of guinea pigs in the offspring would you predict?
Answer: All offspring will be Ss and have smooth coats.
Answer:
All offspring will be Ss and have smooth coats.
Which is a disadvantage of inbreeding?
pls an answer asap!!
bio
the answer is second one
Why do you feel cooler on a hot breezy day than on a hot day in still air?
Answer:
Moving air is able to take heat away from your body faster than still air can. The sweat that take heat from your body is cooled and gives you a nice feeling of breeze.
Humans, dimples are a dominant trait. Predict the percentage of children that will have dimples if one parent is heterozygous for dimples and the other parent does not have dimples.(1 point)
0 percent
100 percent
50 percent
25 percent
If a white horse and a black horse are bred together, what percentage of the offspring will be roan and express both colors in their hair?1 point)
100 percent
0 percent
25 percent
50 percent
Answer:
1) 50 percent
2) 50 percent
Explanation:
The dominant traits are those that are expressed phenotypically, whereas recessive traits are masked by the dominant traits.
The percent of offspring having dimples are 50 percent. The percent of offspring will be roan and expressing both the colors will be 100%.The dimples are the traits, which are expressed phenotypically.
Let the alleles for the heterozygous parent with dimples be Dd. The other parent not having dimples will have the genotype dd.
The combination between the Dd and dd will result in:
Dd, Dd - heterozygous combination of alleles
dd, dd - purebred for the alleles
Similarly, the genotype of the hair color of the horse is white and black .
The cross between the parental genotype will result in 100% heterozygous offspring with genotype [tex]\text {C}_w \text{C}_b[/tex]
The result will be due to codominance, in which both the characters of the parent will be expressed in the offspring such that the horse will have black and white colors.
Therefore, the answers will be 50% and 100%.
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2) How many solutions does the equation 4x + 2(x-5) = 3(2x - 4) have? Write down the final form as well as if it has no solution, exactly one solution, at least two solutions, or infinitely many solutions. plz help me its due today
Answer:
0 = -2, hence no solution.
Explanation:
4x + 2(x-5) = 3(2x-4)
4x + 2x - 10 = 6x - 12
6x - 6x = -12 + 10
0 = -2