Answer:
C
Explanation:
glucose is the product of photosynthesis.
Can Somebody Please Help Me With Homework
Cystic Fibrosis is a homzygous recessive disease that affects 1 in 3400 people. What percent of the population are carriers?
Answer:
The correct answer is = 0.02 or 2.5 percent approx.
Explanation:
Given:
CF is a recessive disease that affects 1 in 3400 people
The frequency of the recessive allele in the population (q2) -
= 1/3400
= 0.0002. Therefore, q is the square root, or 0.014.
The frequency of the dominant allele in the population (p)
= 1 - 0.014 = 0.986 (or 98.6%).
The percentage of s carriers in the population.
2pq equals the frequency of heterozygotes or carriers, then the equation will be as follows:
2pq = (2)(.986)(.014) = 0.02 or 2.5 percent approx.
9. A therapist who believes that depression is caused by the way people THINK
about things would support which of the following perspectives?
a. Behavioral
b. Cognitive
C. Psychoanalytical
D. Humanistic
According to the research, a therapist who believes that depression is caused by the way people think would support the cognitive perspective.
What is the cognitive perspective?It focuses on the study of mental processes such as perception, planning or the extraction of inferences, that is, in the thought processes and in the behavior that manifests those processes.
From this perspective, the patient with depression presents a scheme that involves a negative thought of himself, the environment and the future.
Therefore, we can conclude that according to the research, a therapist who believes that depression is caused by the way people think would support the cognitive perspective.
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why life process lead to an increase in the number of organism
Answer:
my life kinda sucks maybe
Explanation:
but i have my nice family sry for not answer i have no brain so peace out
Which of the following is true if an organism can reproduce asexually?
A. Offspring are genetically different from the parent.
B. Offspring are genetically identical to the parent.
C. Offspring are genetically identical to the parent only 50% of the time.
D. Offspring are genetically variable.
Answer:
c
Explanation:
i think im not sure
If an organism can reproduce asexually, its offspring are genetically identical to the parent.Therefore, the correct option is B.
What is asexual reproduction?Asexual reproduction is a mode of reproduction in which an organism produces offspring without the involvement of gametes or the fusion of genetic material from two parents.
Asexual reproduction involves only one parent, and the offspring are produced by mitotic cell division, which creates identical copies of the parent's DNA. As a result, asexual reproduction produces offspring that are genetically identical to the parent, and there is no mixing of genetic material from two parents as occurs in sexual reproduction.Therefore, the correct option is B.
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Question 1 of 10 A scientist is responsible for monitoring water quality in a river that flows by a large city. She monitors the levels of many substances. This helps her determine the city's impact on the river water. Which substance does she not need to monitor? O A. Phosphates B. Nitrates C. Bacteria D. Carbon
Answer:
D
Explanation:
Answer:
D. Carbon
Explanation:
Took the Test on A P E X
PLEASE HELP ASAP!!!
List two things that can increase genetic variation in meiosis and explain how they can impact the next generation of living things.
Please help :(
Crossing over and random fertilization can increase genetic variation.
What causes genetic variation?There are several causes of genetic variation, including:
Mutations: Changes in the DNA sequence can occur naturally and lead to the creation of new alleles. These mutations can happen spontaneously, or they can be caused by environmental factors such as radiation or certain chemicals.
Crossing-over: During meiosis, chromosomes can swap genetic material with their homologous pairs, leading to the creation of new combinations of alleles.
Independent assortment: During meiosis, the way the chromosomes line up and exchange genetic material can vary, leading to different combinations of alleles being passed on to the next generation.
Random fertilization: In sexually reproducing organisms, the combination of genetic material from sperm and egg cells is random, leading to new combinations of alleles being passed on to the next generation.
Gene flow: The movement of genes from one population to another can lead to the introduction of new alleles into a population.
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Which type of human cells contain a half set of chromosomes (often written as n)?
Answer:
Gametes are the type of human cells that contain a half set of chromosomes.
Explanation:
In superior organisms that reproduce sexually, such as human beings, the somatic cells are diploid (2n), which means that each cell has a pair of equal chromosomes. The somatic cells are all the body cells excepting for the sexual ones, and they reproduce by the process of mitosis. These cells have a set of chromosomes inherited from the maternal side and another homologous set of chromosomes inherited from the paternal side. Hence, the number of chromosomes in these double sets of the somatic cells are diploid, 2n.
In humans, there are also sexual cells, which are haploid (n). These cells are the gametes, and they reproduce by the process of meiosis. Gametes contain half the number of chromosomes that might be found in the somatic cells. The number of chromosomes in this set is haploid, n.
Sequence the steps to making recombinant DNA from 1 to 5.
20. The plasmid becomes part of a host cell's chromosome.
21. A DNA fragment is inserted into a plasmid.
22. The DNA fragment replicates during cell division.
23. The plasmid enters a host bacterial cell.
24. A host cell produces a protein that it would not have produced naturally.
Answer:
A DNA fragment is inserted into a plasmid.
The DNA fragment replicates during cell division.
The plasmid enters a host bacterial cell.
The plasmid becomes part of a host cell's chromosome.
A host cell produces a protein that it would not have produced naturally.
Explanation:
Recombinant DNA is the DNA molecules formed invitro or lab condition with the help of a plasmid, bacterial cell as host and a desirable gene or DNA fragment by the technique of genetic engineering or recombination. This is also known as molecular cloning.
The correct order of steps in the DNA recombination process are as follows:
The desired DNA fragment is inserted into a vector or plasmid.
The DNA fragment replicates during cell division.
The plasmid enters a cell of host bacterial
The plasmid becomes part of a host cell's chromosome.
A host cell produces a protein that it would not have produced naturally.
What do goosebumps tell us about human evolution>
Answer:
The formation of goose bumps in humans under stress is considered to be a vestigial reflex. Its function in other apes is to raise the body's hair, and would have made human ancestors appear larger to scare off predators or to increase the amount of air trapped in the fur to make it more insulating.
Explanation:
2: Which numbers should be inserted for A and B in the chart?
A: A = 1 and B = 2
B: A = 1 and B = 4
C: A = 2 and B = 2
D: A = 2 and B = 4
Answer:
b
Explanation:
Can Chromatin be called a process?
Answer:
I believe it could be called a process.
Explanation:
DNA wraps itself around histone proteins to form nucleosomes and the beads on a string structure. Multiple histones wrap into a 30-nanometer fibre consisting of nucleosome arrays in their most compact form. The higher-level DNA supercoiling of the 30-nm fiber produces the metaphase chromosome. Which occurs during Mitosis and Meiosis. There are some chromosomes that do not follow this alignment. The overall structure weighs on the stage of the cell cycle.
Hope this helps :D Have a great day :3
In humans, the allele for Huntington's disease is dominant. What genotype would a pure breeding human have?
Water is a blank
which means it has an unequal distribution of charges.
a. Hydrogen bond
C. chemical reactions
b. Polar molecule
d. element
Rocks created from the cooling of magma or lava are called sedimentary metamorphosis igneous metamorphic
Answer:
points ignuiest
Explanation:
Why does a cell need a LOT of surface area compared to their volume?
Answer:
The surface area to volume ratio (SA:V) limits cell size because the bigger the cell gets, the less surface area it has for its size.
Explanation:
This is important if you are a cell that depends on diffusion through your cell wall to obtain oxygen, water, and food and get rid of carbon dioxide and waste materials.
the diagram below represents the time a cell spends in the two main phases of the cell cycle. in which phase does a cell spend more time?
Answer:
A. Interphase
Explanation:
I majored in Biology
Explain the similarities and differences that exist between extinct species and humans.
Answer:
Difference Between Endangered Species and Threatened Species. ... what are the other causes apart from humans that can drive an entire species to ... When a species exist no longer, it is considered as extinct.
An element, such as gold or silver, is made up of how many different types of atoms?
A. 1
B. 2
C. 3
"How does a multicellular organism grow larger?
А
The organism absorbs new cells from other organisms.
B
Individual cells in the organism grow larger as they age.
с
Cells in the organism divide, increasing the total number of cells.
A multicellular organism grows larger, and cells in the organism divide, increasing the total number of cells. The correct option is с.
What is a multicellular organism?Multicellular organisms (plants, animals, and fungi) are life forms that have two or more cells. Cells in multicellular organisms are specialized to accomplish specific tasks.
Red blood cells, for example, are designed in humans to transport oxygen and nutrients to all bodily cells. Furthermore, multicellular animals' somatic cells divide by mitosis, whereas germinal gametic cells divide via meiosis.
The cell divides itself and forms identical cells, then these cells divide again and again. It is called cell division.
Therefore, the correct option is с. Cells in the organism divide, increasing the total number of cells.
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As a multicellular organism expands, its cells divide, increasing the total number of cells in the body, hence option C is correct.
Individual cells inside multicellular creatures expand and divide through a process known as mitosis, which enables the organism to flourish.
Every multicellular creature begins as a single cell called a zygote. The zygote, which is created by the fusion of the male and female gametes, divides further to become the multicellular creature. The cells develop into a multicellular, fully functional system.
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I only need help with problem number 2.
Answer:
Scanning
Explanation:
A pea plant that is heterozygous for the tall phenotype can produce short offspring when self-pollinating. Which of the following explains why this occurs?
Answer:
The choices were:
Explanation:
segregation of alleles
codominance of traits
polygenic expression of traits
independent assortment of alleles
A pea plant that is heterozygous for the tall phenotype can produce short offspring when self-pollinating, and this happens due to the independent assortment of the alleles.
What is the result of the independent assortment?The mendel explains how the traits are expressed and explained by different laws, and out of those laws, one is the law of independent assortment, where he explains that alleles can independently assorted and segregate and form the gametes. The pea plant is an example. In the pea plant, the heterozygous plant for height is Tt, and these two alleles can segregate and can form both tall and short plants. When the two Tt self-pollinate, then three of them are tall and one is short.
Hence, A pea plant that is heterozygous for the tall phenotype can produce short offspring when self-pollinating, and this happens due to the independent assortment of the alleles.
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The question is incomplete, the complete question is the following:
A pea plant that is heterozygous for the tall phenotype can produce short offspring when self-pollinating. Which of the following explains why this occurs?
independent assortment
segregation of alleles
polygenic expression
expresses codominance
Please help me guys!!
the carbon cycle, photosynthesis, and cellular respiration and show how they are connected/work together in an ecosystem. Play the role of a carbon atom in an ecosystem. Start with the production, how are you made? And then explain how you transform through different processes. Make sure to include your role in the carbon cycle, photosynthesis, and cellular respiration. There is no set length, as long as you explain the role of carbon in each process.
Answer:
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere.
Explanation:
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathways through which carbon is recycled in the biosphere.
What do you mean by cellular respiration?Cellular respiration is the process by which biological fuels are oxidised in the presence of an inorganic electron acceptor such as oxygen to produce large amounts of energy, to drive the bulk production of ATP.
Cellular respiration is a series of chemical reactions that break down glucose to produce ATP, which may be used as energy to power many reactions throughout the body.
Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP.
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Which of the following is NOT an example of a density dependent factor? A. Half of a population of birds is killed in a forest fire. B. Logging cuts down a quarter of a habitat. C. A disease moves quickly through a population of rats. D. A pride of lions moves into the hunting territory of another group of lions looking for food.
Answer:
The correct answer is - A. Half of a population of birds is killed in a forest fire.
Explanation:
Density-dependent factors are the factors that have varied or different effects as per the population size. In other words, the factors that are not influenced by the density of the population is density-dependent factors. These factors include competition, disease, and predation.
This could have a positive or negative relation to the size of the population as they increase with the increase of population size. Natural disasters not include in it.
This structure gives a cell shape, allows it to move, and moves organelles. 5 points a) cytosol b) cytoskeleton c) cytoplasm d) plasma membrane
Answer:
B) cytoskeleton
Explanation:
the cytoskeleton is a network of connected filaments and tubules.
which properteys describe all matter
Answer:
Matter is anything that has volume and mass.
Explanation:
A unique substance composed of atoms having the same atomic number
Answer:
Element
Explanation:
An element is made up of a single type of atom, that is, it’s a substance made up of atoms that have the same number of protons in the nucleus, this number is known as the atomic number of the element. An atom is the smallest particle of an element that retains its properties.Each element is made up of atoms with the same chemical properties such as reactivity, ionization potential. Chemical elements are identified by names given in antiquity, derived from some property of them, from the name of their discoverer, from the place of discovery. In nature there are 92 elements that can be presented (at 1 atm of pressure and 25 ºC) as solid: iron, lead; liquid: bromine, mercury or gas: chlorine, oxygen.
A controlled experiment _____. Group of answer choices Includes at least two groups, one of which does not receive the experimental treatment Is repeated many times to ensure that the results are accurate Proceeds at a slow pace to guarantee that the scientist can carefully observe all reactions and process all experimental data Includes at least two groups, one differing from the other by two or more variables
Answer:
A. Includes at least two groups, one of which does not receive the experimental treatment
Explanation:
A control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.
Also, an experimental group can be defined as a collection of participants that are subjected to the independent variable.
Generally, most scientific experiments usually have a control group so as to avail the scientists (experimentalists) an ability to compare the outcome of their test results. This control group is not given the treatment or influenced by the same independent variable as the experimental group.
Therefore, this is the reason why science completely or totally rejects any hypothesis which is not supported by observations, as well as the results obtained from control experiments.
This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.
Hence, a controlled experiment includes at least two groups, one of which does not receive the experimental treatment.
A controlled experiment includes a control group and at least one experimental group. Option A). A controlled experiment includes at least two groups, one of which does not receive the experimental treatment.
In a controlled experiment, the researcher wants to identify the effect of one or more variables on something.
Since many different variables might be affecting the results, and most of them are not of interest to the researcher, they must be kept under control. They must remain constant.
There must be at least two groups. One of them must be the control group, and the other one (or other ones) is the experimental group.
During an experiment, the researcher compares the two groups. Both of them are composed of individuals coming from the same population, so they are identical in all aspects except for the independent variables that the researcher changes in the experimental group to observe how they affect the individuals.
The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment. The independent variable keeps constant in the control group. The experimental group receives the treatment. The researcher voluntarily changes the values of the independent variable to observe how it affects the individuals subjected. There can be several experimental groups.
Hence, A controlled experiment includes at least two groups, one of which does not receive the experimental treatment.
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you find a litter of cats both parents and fathers cast of black you notice that 2 out of 8 or white how is this possible
Which of the following is an example of a parasite?
A. Molds
B. Mosquitoes
C. Yeasts
D. Zika
Answer:
B. Mosquitoes
Explanation:
Mosquitos have a parasitic relationship with other animals, which means that they benefit while the other is negatively affected.