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Which of the following puts a person at the greatest risk of contracting an STI? *
A. Giving first aid (CPR) to a person who has a cut on their lip and is bleeding from the cut.
B. Having sexual intercourse with only men while using a condom.
C. Getting a tattoo of a cool looking dragon on your arm with a clean needle.
D. Sharing a can of Pepsi with your sibling.
E. Walking down a dirty alley.
Answer:
A
Explanation:
Arnoldo is a botanist studying inheritance in flowers. When he crosses pure breeding red carnations with pure breeding white carnations, the offspring in the F1 generation have pink flowers. In the F2 generation, some
flowers are red, some flowers are white, and some flowers are pink When he crosses blue poppies with yellow poppies, all the offspring in the Fgeneration have both blue and yellow petals In the F2 generation, some
have only blue petals, some have only yellow petals and some have both yellow and blue petals
Which of the following correctly identifies the inheritance patterns Arnoldo is observing?
Flower color in the poppies is polygenic, while flower color in the carnations is controlled by multiple alleles
Answer:
A is the answer
Explanation:
The statement that correctly identifies the inheritance patterns is the yellow allele is incompletely dominant over the blue allele in the poppies, while the red and white alleles in the carnations are codominant. The correct option is D.
What is inheritance?Genetic information is transmitted from parent to kid through inheritance. Members of the same family typically share traits in common because of this.
As it relates to genetics, the term "inherited" describes a feature or variation that is encoded in DNA and passed from parent to child during reproduction. The laws of Mendelian genetics govern inheritance.
Therefore, the correct option is D. The yellow allele is incompletely dominant over the blue allele in the poppies, while the red and white alleles in the carnations are codominant.
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The question is incomplete. Your most probably complete question is given below:
A. Flower color in the poppies is polygenic, while flower color in the carnations is controlled by multiple alleles.
B. Flower color in the carnations is polygenic, while flower color in the poppies is controlled by multiple alleles.
C. The red allele is incompletely dominant over the white allele in the carnations, while the yellow and blue alleles in the poppies are codominant.
D. The yellow allele is incompletely dominant over the blue allele in the poppies, while the red and white alleles in the carnations are codominant.
In which phase of meiosis II does the cytoplasm divide?
Answer:
Cytokinesis
Explanation:
13. Soil begins to form when lichens and weather break down volcanic rock into smaller pieces
during
A. pioneer species
B. primary succession
C. secondary succession
D. climax communities
Which of the following animals will provide the best soil aeration?
1.wolf
2.earthworm
3.fox
4.grasshopper
Answer:
The correct answer is - option 2. earthworm.
Explanation:
Soil aeration is one of the major factors that help in the productivity of the soil, it is the phenomenon that exchanges the gases between the atmosphere and soil. Microbes and plants leads to change in the oxygen and carbon dioxide in the soil. Volume of the macropores, oxygen, CO2, redox potential helps in the determining the soil aeration.
Earthworms are the natural way of the help in the status of the soil aeration as they help in the increasing the volume of the macropores in the soil asnd help. They help in increasing soil porosity which increases the air and gases in the soil.
_____________ is the process of cutting DNA into fragments and inserting the fragments with a desired ____________ into another organism of the same or different species.
Answer:
given below
Explanation:
Genetic engineering is the process of cutting DNA into fragments and inserting the fragments with a desired gene into another organism of the same or different species
Answer:
Genetic Engineering
trait
the next answer to the next question is.....
recombinant dna tehnology
Explanation:
edu 2021
Which type of electromagnetic radiation is the primary cause of sunburns?
Radio waves
Ultraviolet rays
Visible waves
Rays
Answer:
Ultraviolet rays
Explanation:
These waves cause sunburns it's true...
have a good day
Which evidence supports the idea that life on Earth has continually evolved
Answer:
Fossils are the remains of long-dead organisms, preserved in rock. Because rocks are laid down in layers, one on top of the other, the fossil record is generally set out in date order: the oldest fossils are at the bottom. Running through the fossil record makes it clear that life has changed over time.
Explanation:
I looked it up for you :D
This form of water pollution causes bacteria to multiply in the water rapidly causing people who come in contact with this water to become ill, many times with diarrhea.
Answer:
The correct answer is - water contamination.
Explanation:
Water contamination is a form of water pollution in which water is contaminated or polluted with several microorganisms and pathogens by industrial waste, sewage, animal waste.
It is contaminated when rainwater runoffs from agricultural farms, industrial and sewage dump that brings toxins, wastes, and fertilizers to the water body that help bacteria to multiply and infect the people who come in touch with it.
Strawberry plants produce offspring through asexual reproduction. Which statement is true about strawberry plants?
Question 4 options:
They are identical to the single parent.
They have characteristics of both parents.
Strawberry plants can reproduce by blastogenesis reproduction as well as syngenesis, so both statements are true.
Option (A) and (B) both are true.
How strawberry plants reproduce?Strawberry plants can reproduce by blastogenesis reproduction by sending out runners that are called stolons. So the daughter plants will be identical to the single parent.
Strawberry plants also reproduce by syngenesis reproduction by producing gametes in flowers. In this case, the daughter plants would have characteristics of both parents.
Thus, option (A)They are identical to the single parent and option (B)They have characteristics of both parents, both are true.
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many plants can reproduce by vegetative reproduction. what is the main benefit of this form of reproduction?
Answer: Some plants can produce seeds without fertilization via apomixis where the ovule or ovary gives rise to new seeds. Advantages of asexual reproduction include an increased rate of maturity and a sturdier adult plant.
If a plant is identified as Alternanthera flava (L.) Mears, the word Alternanthera indicates which of the following?
O species
O genus
O domain
O phylum
Answer:
The answer is Genus
Explanation:
plant genus - a genus of plants. genus - (biology) taxonomic group containing one or more species. kingdom Plantae, plant kingdom, Plantae - (botany) the taxonomic kingdom comprising all living or extinct plants.
.Explain how the Mid-Atlantic Ridge was formed
As the plates slowly separate, they leave gaps in the earth's crust. This allows molten rock from beneath the earth's crust to reach the surface, forming a new part of the ocean floor.
hope this helps ^^
what is a carrier? what is the genotype for someone who is carrier for a disease but they don't have it themselves
Answer:
A carrier is an individual who carries and is capable of passing on a genetic. Carriers are associated with diseases inherited as recessive traits. An individual having one normal allele and one mutated allele does not have the disease.
Explanation:
Modeling Mitosis Activity
1. Whatisthediploidnumberofchromosomesinafruitfly?________________
2. Howmanyhomologouspairsofchromosomesdoesafruitflyhave?__________
3. Inthediagram(right),namethestepsthatarepartofmitosis. ____________________________________________________
4. Whichstepsarepartsoftherestofthecellcycle? ____________________________________________________
Modeling mitosis
a. Inlateinterphase(step2onyourboard),theamountofDNAdoubles.Thatmeanseachchromosome now doubles. Select a matching pipe cleaner (same length and color) for each chromosome and slide both through a piece of cereal. You now should have a set of eight doubled chromosomes arranged in homologous pairs.
b. Reviewthemitosisdiagraminyourtextbookandmovethechromosomesthroughtherestofthesteps on your board.
Applying your knowledge
Fill in Table 1 with the correct information.
Step
Number of cells
Number of chromosomes in each nucleus
Number of homologous pairs in each nucleus
Interphase Cytokinesis
Table 1: Cell cycle and mitosis in fruit flies
.. . 0.
11. What is the purpose of mitosis? (3 points) ____________________________________________________________ ____________________________________________________________
A diploid set of human chromosomes contains 23 homologous pairs (46 chromosomes). Fill in Table 2 with the correction information regarding human body cells.
Step
Number of cells
Number of chromosomes in
each nucleus
Number of homologous pairs in each nucleus
Interphase Cytokinesis
Table 2: Cell cycle and mitosis in humans
12. 13. 14. 15. 16. 17.
18. Why is it necessary to double the amount of genetic material before mitosis begins? (3 points) ___________________________________________________________ ___________________________________________________________ ___________________________________________________________
19. The two daughter cells end up with an exact copy of the genetic material from the parent cell. How does your simulation support this statement? (3 points)
How does the specific immune response to viruses related to diabetes?
Please help this is due today and I really need help.
Answer:Type 1 diabetes is an autoimmune disease, whereby the body's immune system reacts against its own cells, in this case the insulin producing cells in the pancreas, and begins to kill these cells. The causal factors of type 1 diabetes are not yet well understood.
Explanation:
Answer:
how much do you need written?
oop nvm someone else beat me to it
which statement best describes the population at point b?
Answer:
d.........................
The growth curves show the lag, log, stationary, and death phases. At a point, B is the graph the food and the space are in abundance. Thus, option D is correct.
What is a growth curve?A growth curve is the representation of the change in the number or the population of a species at a particular period. It shows the evolution over time and the effects of the various factors on growth.
Point B is in the logarithmic or exponential phase that characterizes the growth and increase in population. The growth is possible only if resources like food and space are abundant for the species.
Therefore, point B shows an abundance of food and space.
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What is Cellular Respiration?
Answer:
Explanation:
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate, and then release waste products.
Answer:
Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from oxygen molecules or nutrients into adenosine triphosphate (ATP), and then release waste products.
Explanation:
hope it helps ☺️
Describe the problem with diabetes and why it is important to the public?
Please help this is due today and I really need help.
Please Help Me I Think I Have The Answer But I Just Need A Second Opinion...
Which of the following represents a dominant trait?
Select one:
a. a
b. A
c. d
d. b
Answer:
b. A
Explanation:
Answer:
b. A
Explanation:
I am generally found both inside and outside of the nucleus [in eukaryotic cells].
The radiometric date of a metamorphic rock most likely represents when the rock was _____.
Answer:
"Heated during metamorphism" is the appropriate response.
Explanation:
Metamorphism, the mineralogical but rather architectural adaptation of rock formations to biochemical circumstances widely divergent from some of those whereby the rock formations were recently established. Improvements caused by atmospheric circumstances, including such compaction, have been considered separate.which weather instrument is most useful in measuring relative humidity?
How do you contribute to the mass of a tree?
The living animals contribute to the mass of the tree because they release the carbon dioxide that is used by the plants for photosynthesis and later used by the cells.
What is the role of photosynthesis?Photosynthesis is the process in which the plant takes the carbon dioxide from the atmosphere and, with the help of sunlight and water, makes glucose and oxygen, which are further used by the living organisms, and releases the carbon dioxide into the atmosphere. More is the carbon dioxide released into the atmosphere by the animals, more is the rate of photosynthesizing, and more is the biomass of the plants. but if the carbon dioxide increases and the number of plants reduces, then the photosynthesis rate also reduces.
Hence, the mass of the tree increases if more carbon dioxide is released from the animals, and that is further used by the plants for photosynthesis and cellular metabolism.
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The water cycle includes living
elements and non-living geological
processes. What type of cycle is the
water cycle?
A-Biogeochemical cycle
B-Inorganic Cycle
Answer: Hope it helpz
Explanation:
Some of the major biogeochemical cycles are as follows: (1) Water Cycle or Hydrologic Cycle (2) Carbon-Cycle (3) Nitrogen Cycle (4) Oxygen Cycle. The producers of an ecosystem take up several basic inorganic nutrients from their non-living environment. These materials get transformed into the bio mass of the producers.
Only 4 questions Please help
Answer:
1) natural selection
I can't answer the rest without more information
What is the best distinction between birds and other animals?
A. Birds can fly.
B. Birds have amniotes eggs.
C. All birds eat seeds
Answer:
The correct answer is option A. birds can fly.
Explanation:
One characteristic that distinguish birds from all other animals is that birds have feathers. Birds are the only animals that have feathers, actually it is said that if an animal have feathers it must be a bird. Feathers serve many purposes for birds: they allow birds to fly, serve as insulators for their eggs and their young's, and also give them protectrom from water and cold temperatures.
Which organic compound did Avery discover was the genetic
material
Answer:
DNA
Explanation:
DNA
Avery is best known for his 1944 discovery that DNA is the material of which genes and chromosomes are made.
4. Which of the following statements accurately describes a difference between
viruses and bacteria? *
A. Viruses are much smaller than bacteria cells.
B. Viruses have a higher metabolism than bacteria cells.
C. Viruses contain organelles while bacteria cells do not.
D. Viruses reproduce asexually while bacteria cells reproduce sexually.
e
Answer:
Explanation:
Nor do viruses have cells: they're very small, much smaller than the cells of living things,Bacteria are also much bigger than viruses. The virus or its genetic material enters the cell.
The statements accurately describes a difference between viruses and bacteria is viruses are much smaller than bacteria cells. Thus, option A is correct.
What is virus?A virus is a microscopic organism that serves as infectious agent and replicates only inside the living cells of an organism. Viruses infect all living organisms such as plants, animals, human beings including bacteria and other microscopic organism.
Virology is the branch of science which deals with the study of viruses. When virus infected a host cell rapid production can be observed and by multiplying rapidly thousands of original copy of viruses are produced.
When the virus enters into a infected cell or living cell, viruses exist in the form of independent particles known as virions. In open air viruses are non-living but when they entered into a living cell of an organism they become active and reproductive as well.
Therefore, The statements accurately describes a difference between viruses and bacteria is viruses are much smaller than bacteria cells. Thus, option A is correct.
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A biology student wanted to determine if there is a relationship between resting heart rate and time spent exercising per week.He gathered information from 12 classmates and constructed the graph below.What is likely to be a resting heart rate for a student who exercises about 3 hours a week ?
A-69bpm
B-62bpm
C-81bpm
D-75
Answer:69bpm
Explanation:i just did it
From the graph, the likely resting heart rate for a student who exercises about 3 hours a week would be 69 bpm.
What is resting heart rate?It is the normal rate at which the heart pumps blood when in resting conditions.
From the graph, the resting heart rate is inversely proportional to the number of hours spent exercising per week.
For someone that exercises 3 hours per week, the resting heart rate hovers between 70 and 65 bpm.
Thus, the likely resting heart rate from the available option would be 69 bpm.
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