An illustration of an organism and a dichotomous key are given. What is the organism?
1
2
a. More than 6 legs
b. 6 legs or less
a. Has wings
b. No wings
a. Single pair of wings
b. Two pair of wings
a. Wings are nearly equal size
b. Forewings larger than hindwings
Arachnid
Go to step 2
Go to step 3
Ant
Fruit fly
Go to step 4
Dragonfly
Mayfly
اسا
4
Arachnid
Ok
Answer:
it's a dragon fly right?
. When birds migrate into or out of a defined population and mate with birds from another
population, the existing pool of genes may be altered. Migration can increase or decrease gene
frequencies in populations, resulting in...
A. Greater genetic variation, which may enhance chances of survival
B. Less genetic variation, which will not influence chances of survival at all
C. Selective breeding, which may enhance chances of survival
D. Natural selection, which will not influence chances of survival at all
I need help i will love you forever I need to get my grade up by the end of today
She/They idc if u don't want to see my pronouns I want u to see them
Which approach would be least helpful in determining genetic differences between species?
Answer:
the least helpful would be a straight up guess, the best way would be to to back in the history of that species and study how they lived and survived and reproduced and all that stuff
Explanation:
Comparing physical characteristics between species is not a reliable method for determining genetic differences because many physical traits are influenced by environmental factors and may not necessarily reflect the underlying genetic differences between species.
What is an example of this ?For example, two species may have different fur colors or patterns, but this difference may be due to environmental factors such as exposure to different types of light rather than genetic differences.
In contrast, analyzing DNA sequences can provide a more precise and objective way to identify genetic differences between species. By comparing the DNA sequences of different species, scientists can identify variations in genes and regulatory regions that may be responsible for differences in traits or behaviors between species.
This approach can also reveal the evolutionary relationships between species and provide insights into how genetic variation has driven the diversification of life on Earth.
Therefore, Advances in genomic technologies have made it increasingly feasible to sequence and compare the genomes of diverse species. Comparative genomics has already revealed many insights into the genetic basis of traits such as human disease susceptibility, adaptation to environmental challenges, and the evolution of complex traits such as intelligence and social behavior.
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how aquatic animals and plants adapt to live in water
all you need is in the photo please answer fast please helpppppp
Don't answer randomly if you do you lose your points because I am gonna lose points
Proteins are formed in the cytoplasm of cells using genetic instructions from DNA, which is located in the cell’s nucleus. Which of the following best explains how the genetic information gets to the site of protein synthesis?
Answer:
I dont know
Explanation:
begin by making a list of questions that will help you conduct your research
Answer:
Explanation:
I don't see the equation
A group of organisms that can reproduce to produce fertile offspring (babies that can reproduce).
A)Biosphere
B)Community
C)Population
D)Ecosystem
Answer:
Población
Explanation:
Puesto que no se especifica que individuos realizan la acción podemos deducir que habla de los seres en general, así pues , de todas las definiciones creo que la población es la más acertada.
Research and find a zoonotic disease that you find interesting. Write a news report that could be used as a script for a TV news show.
Instructions
Include the following in your report:
Explain what a zoonotic disease is.
Describe the disease.
Explain how to protect yourself from becoming infected.
Your report should be 100 to 125 words long.
I need a little help i will mark you branleist
Zoonotic diseases are animal diseases that can be transmitted to humans. Transmission can be by ingestion, inhalation, bites, scratches, contact with contaminated products, and vector-borne. There are over 200 zoonotic diseases that can possibly threaten your health and involve several different causative agents, such as bacteria, parasites, viruses, and others. I am only going to inform you of just a hand full that is caused by bacteria and contaminates cattle. Once the cattle on large commercial farms become infected it can be a challenge to get rid of and contain.
Wash hands before and after animal handling.
1. Do not eat or drink in the animal housing areas.
2. Wear coveralls, farm specific clothing or laboratory coats when handling animals.
3. Avoid handling sick animals or animals with lesions unless gloved.
4. Wear a mask if you are allergic to animal hair or dander or if feed or bedding dust is present.
5. If you are sick, DO NOT enter the agricultural animal facilities. You are more susceptible to other infective agents and you may transfer pathogens to the animals!
6. Routinely wear gloves when cleaning animal area.
7. Note progression of any illness. Report illnesses to your supervisor.
8. Inform physician of your animal related activities.
Explanation:
I hope that this is what you were looking for...
how do genetics define the appearance of an organism?
Define light reaction.
Define dark reaction.
I am in search of perfect answer, otherwise i'll report it.
➜ A chemical reaction which take place only in the presence of light, is called light reaction or light dependent reaction.
• It takes place in grana of chloroplast.
➜ A chemical reaction which can take place even in the absence of light, is called dark reaction or light independent reaction.
• It takes place in stroma of chloroplast.
What does central dogma refer to?
Answer:
The central dogma of molecular biology desrices the flow of genetic information in cells from DNA to messenger RNA to protien.
Explanation:
Help... I have number one done I just need to awnseres to 2 and 3
The soil around a lilac bush was watered with a solution containing
radioactive phosphorus. Several hours later, radiation was detected in it’s
branches. Through which structures did the radioactive phosphorus read
the branches?
A. stomata
B. guard cells
C. xylem vessels
D. phloem vessels
Answer:
I think its D
Explanation:
Guys pls help me!!!!!!!!!!!
Answer:
True
Explanation:
1. What were the results from Chargaff's experiment? Select all that apply.
Multiple select question.
A)adenine binds with thymine
B)adenine binds with cytosine
C)cytosine binds with thymine
D)cytosine binds with guanine
E)adenine binds with guanine
F}thymine binds with guanine
Answer:
A,D
Explanation:
The results from Chargaff's experiment includes adenine binding with
thymine and cytosine binding with guanine.
Chargaff was a Scientist who performed various experiment using the DNA.
He discovered that DNA varied and had purine and pyrimidine bases.
He also discovered that the amount of cytosine should be equal to the
amount of guanine and that the amount of adenine must be equal to the
number of thymine and that both should be paired together.
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HELP ME
I NEED THIS FOR NOW
I WILL GIVE YOU BRAINLIEST
Answer:
1) As soon as the paper cuts into the cells of your skin, your body springs into action. First, blood cells called platelets join together at the paper cut and form a clot to stop the bleeding.
The process is called Blood clotting.
2) The cell that are made will have the same same amount of DNA/chromosomes.
3) Chromosomes come in pairs. Normally, each cell in the human body has 23 pairs of chromosomes (46 total chromosomes). Half come from the mother; the other half come from the father. Two of the chromosomes (the X and the Y chromosome) determine your sex as male or female when you are born.
What is the phenotype ratio for this cross?
Answer:,,
Explanation:
Answer:
3 long and 1 short
Explanation:
3 of the squares have the dominant allele for long needles (L) therefore all 3 would all have long needles because in order for a cactus plant to have short needles it would have to have only the short allele (l) like the one on the bottom right corner
17. Energy stored in foods is
; digested food
releases
energy for movement and
energy as heat.
/watch?v=DLzxrzFCyOs
Energy for movement and energy as heat
Describe the relationship between muscles, fascicles, muscle fibers, and myofibrils.
what is the function of the human skeleton
Answer:
The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs
Explanation:
Answer:
1. Support
That's about everything just covered above
2. Protection
They keep organs away from damage, such as the rib cage and the skull.
3. Movement
That's covered above, also.
4. Storage
The bone stores fat and some minerals.
5. Blood cell formation
The bone is the place that most of your blood components are made.
Explanation:
List the sequence of events that occur as the avocado seed germinates.
Answer: The sequence of events of avocado seed germination includes:
Water absorption --> enzyme activation --> radicle emerges --> lengthening of the hypocotyl --> growth of epicotyl and plumule development --> shrinking of the cotyledons.
Explanation:
Germination is defined as all the changes that occurs when a seed embryo resumes it's growth and development to become an independent seedling. Seeds usually germinate in two ways:
--> EPIGEAL germination: in this type of germination, the hypocotyl grows rapidly and elongates, carrying the cotyledon above the soil.The AVOCADO seed is a typical example of a dicotyledonous plant.
The sequence of events of avocado seed germination starts by imbibition which is the rapid in take or absorption of water by the seed through osmosis. Hydration of the embryo activates the enzymes in it which converts insoluble stored food materials into soluble forms. The testa splits and the radicle emerges first. It grows downwards as the primary root from which root hairs and branch roots arise( to form a tap root system). Next, the hypocotyl lengthens, pushes its way up through the soil carrying with it the cotyledons and the plumule. The cotyledons turn green on exposure to sunlight and start to photosynthesize. The epicotyl then grows and the plumule develops into a green shoot. By the time the first foliage leaves grow and begin to photosynthesize, the cotyledons shrink and drop off.
describe how ingestion of very salty food may reduce amount of water excreted in urine
Answer:
because salt is really dry so it would decrease the amount of water
Explanation:
Help please
In an experiment, 90 newborn flies are divided evenly into three separate
groups and placed in boxes inside an incubator that is maintained at a
constant temperature of 30°C. On a daily basis, the first group is given water
containing 1 mg/mL of sugar; the second is given water containing 2 mg/mL
of sugar; and the third is given water containing 3 mg/mL of sugar. After four
weeks, the average length of the flies in each group is determined.
Which factor is the independent variable in this experiment?
A. Number of flies in a group
B. Average length of flies in a group
C. Concentration of sugar in the water
D. Temperature of the incubator
Answer: Average length of flies in a group is the right answer, I did it.
1. What is a lunar eclipse? *
5 points
a. when the moon is completely dark
b. when the side of the moon that faces the sun is illuminated and the other side is
completely dark
C. when the side of the moon that faces the sun is completely dark and the other side
is illuminated
Answer:
a lunar eclipse is when the sun and the moon align in the same place in FROUNT of earth
Answer:
An eclipse of the Moon (or lunar eclipse) can only occur at Full Moon, and only if the Moon passes through some portion of Earth's shadow.
Explanation:
Show the path of air after entering the nostrils.
Pleas answer it for my assignment..I beg u..pls
Answer:
Answer is below
Explanation:
Pathway of air: nasal cavities > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli.
Hope this helps:)
➜ In humans, air takes the following path after entering the nostrils.
Nostrils.
↓
Nasal passage.
↓
Pharynx.
↓
Larynx.
↓
Trachea.
↓
Bronchus.
↓
Bronchiole.
↓
Alveolus.
A bird is flying south at 20 mph. Then the bird turns to go west. The bird is still flying at 20 mph. Did the velocity change?
Answer: i was wrong sorry
Explanation: sorry
Which of the following is NOT a benefit of using fracking?
A. It allows use of formerly trapped resources.
B. It uses fresh water which can become be polluted.
C. It has allowed countries like the US to become more energy independent.
D. It has increased the supply of energy resources.
Even though mutations are relatively rare, they are still a concern in bacteria populations. Why?
Answer:
Mutations can provide resistance to antibiotics If we were to treat the bacterial population with that specific antibiotic, only the resistant bacteria will be able to multiply; the antibiotic selects for them. These bacteria can now increase in numbers and the end result is a population of mainly resistant bacteria.
Explanation:
Even though mutation is rare in bacteria, it is still important to be concerned about bacteria. The reason is that if any mutation happens that converts the bacteria into antibiotic-resistant bacteria, then this would be harmful.
What is mutation?Mutation is a phenomenon in which a change is seen in an organism's genome. It may be induced by chemical factors, environmental factors, etc. The mutation may be positive or negative.
In a population, evolution is seen due to mutation. It is one of the factors behind evolution. In bacteria, the mutation happens too. If any sort of mutation happens that makes them antibiotic-resistant, then it would be harmful for humans. Humans take antibiotics that destroy harmful bacteria. If these bacteria mutate their genetic constitution and become resistant, a higher dose of antibiotic will be required next time to destroy such harmful bacteria.
Hence, mutations in bacteria are harmful even though they are rare.
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