Answer:
Without crossing over, each chromosome would be either maternal or paternal, greatly reducing the number of possible genetic combinations, which would greatly reduce the amount of genetic variation between related individuals and within a species
Explanation:
Answer: Without crossing over, each chromosome would be either maternal or paternal, greatly reducing the number of possible genetic combinations.
Explanation: It would greatly reduce the amount of genetic variation between related individuals and within a species. -socrative
You hear a commercial on the radio for a brand-new medicine guaranteed to boost immunity. Which source is the least likely to provide accurate information about this product? a popular culture magazine a brochure from a doctor’s office a government agency’s website (e.g., the Food and Drug Administration)
Answer:
A popular culture magazine.
Explanation:
Both a brochure from a doctor's office and a government agency's website are reliable, as their jobs include protecting us and ensuring our medical well-being.
Select the correct answer.
Why are biologists still debating the classification of protozoans?
A.
Biologists never agree on anything.
B.
There are estimated to be over 50,000 different species.
C.
Protozoans can be heterotrophic or autotrophic.
D.
Protozoans can be unicellular or multicellular.
Answer:
pretty sure that its c
Explanation:
Answer:
B
Explanation:
Answer B is correct:
Because the biologists are continuing to learn more and more about
such minute organisms, protozoan systematics – that is, the taxonomy (classification) and the evolutionary interrelationships of major groups of protozoa – remains a topic of debate and change, still today.
Some of the rather LARGE and unwieldy taxonomic groupings of past years are particularly subject to revision with expansion of and refinement in the knowledge about the members of those – and related – assemblages. Paradoxically, the protozoa themselves are becoming more difficult to define with precision as our information about them and other microbial assemblages increases. Thus, presenting a single satisfactory circumscribed definition for them is not an easy task.
...
Answer A sounds so funny.
Answer C and D are false because Protozoans are usually single-celled and heterotrophic.
...
Hope this answer can help you. Have a nice day!
Which characteristics describe bacteria? Check all that apply. are microscopic are single celled are multicelled have shapes that include sphere, rod, and spiral have shapes that include prism, cone, and spiral have nuclei and membrane-bound organelles do not have nuclei and membrane-bound organelles
Answer:
Are microscopic
Are single celled
Have shapes that include sphere, rod, and spiral
Do not have nuclei and membrane-bound organelles
Explanation:
I need the answer please, its due
I will give you brainliest please help
7. Explore and discuss homeostasis imbalances (issues that cause problems) including gallstones, heartburn, ulcers , dehydration, diarrhea, cirrchosis and cancers of the digestive system. **look up these conditions
Drink plenty of water
Water aids your digestive health by helping to cleanse the entire system. It's particularly helpful in preventing constipation because water helps soften your stools. Furthermore, water may help your digestive system absorb nutrients more effectively by assisting the body to break down food.Jun 18, 2018
What are three ways to express the probability of an event that occurs 500 times out of 2,000 total trials?
Answer:
2500
Explanation:
Answer:
500/2,000
2,500
Explanation:
A plant can have either brown (B) or red (b) leaves. Brown is the dominant
trait. If a plant has genotype Bh which best describes the plant?
Answer: It would be described as a heterozygous dominant plant
Explanation: They are both different letters one uppercase and one recessive so it would be a heterozygous dominant plant.
Answer:
Heter. with brown leaves
The wind blows the windmill. The windmill pumps water. Which type of energy does the windmill use?
A.
solar
B.
water
C.
nonrenewable
D.
renewable
An energy pyramid shows how energy flows through an ecosystem. An image is provided. Each level gets only about 10% of the energy from the previous level. If living systems follow the law of conservation of energy, where does the remaining 90% of the energy go?
A. A It is used by decomposers during decomposition.
B. B It is converted into heat and energy for life functions.
C. C It is converted to matter during digestion.
D. D It is used by organisms in the lower trophic level.
Answer:
b
Explanation:
some is used, some is wasted by giving off heat, being excreted, etc
The statement (B) is correct. It is converted into heat and energy for life functions.
What is an ecosystem?An ecological pyramid is a graphical representation designed to show the biomass or bioproductivity at each trophic level in a given ecosystem.
Moreover, an energy pyramid is a model that shows the flow of energy from one trophic, or feeding, level to the next in an ecosystem. The model is a diagram that compares the energy used by organisms at each trophic level. The energy in an energy pyramid is measured in units of kilocalories (kcal).
Therefore, a pyramid of energy represents how much energy, initially from the sun, is retained or stored in the form of new biomass at each trophic level in an ecosystem. Typically, about 10% of the energy is transferred from one trophic level to the next, thus preventing a large number of trophic levels.
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Four substances were tested as possible toxic substances that may or may not cause lung cancer which substance is the MOST
LIKELY candidate for a warning tabel, according to this chatt?
A)
substance A
B)
substance B
C)
substance
D)
substance D
Answer:
A) substance A
Explanation:
When was Amoebic Dysentery discovered and what are all the symptoms?
Answer:it was discovered in 1873 in Russia by Friedrich Losch (6)
Symptoms:
Abdominal pain
Fever and chills
Nausea and vomiting
Watery diarrhoea
Fatigue
Painful passing of stools
Intermittent constipation
Explanation:
Joel has a terrarium. The terrarium is a sealed container with both plants and animals. Inside the container, the plants and animals grow and reproduce. From time to time, Joel places the terrarium on a balance and always gets the same reading, 1525.3 grams. This is evidence that best supports which of the following laws of living systems?
A. A Law of thermodynamics
B. B Law of conservation of energy
C. C Law of motion
D. D Law of conservation of mass
Answer
D
Explanation:
I just looked it up if you look it up and read it I should tell you so you can understand better
Charles Darwin's theory that men descended from apes was met with both favorable and unfavorable opinions. Although some readers liked Darwin's ideas, the religious leaders and scientists of his time did not approve of his research.
This example shows that
A. the church and its scientists did not approve of any type of science or research study.
B. very little scientific research was done in Darwin's time.
C. Darwin was not a good scientist, and his theories were wrong.
D. many science innovators experience difficulties as they attempt to break through accepted ideas of their time.
why is East Ferris running out of water
Answer:
East Ferris running out of water because the amount of available freshwater decreases when people use more than the amount that flows into their area.
East Ferris running out of water because the population of East Ferris is increasing over time, but the amount of rainfall in East Ferris stays about the same over time.
How is East Ferris running out of water?The population of East Ferris is increasing over time, but West Ferris is not running out of water because it rains more in West Ferris than in East Ferris.
In East Ferris, the population is increasing with time, but the amount of rainfall in East Ferris remains similar with time. The wind is moving in the direction from east to west and having upward movement of the humid air which gets cool and the condensation of water vapors takes place into clouds and falling of rain takes place.
Therefore, East Ferris is increasing over time, but the amount of rainfall in East Ferris stays the same.
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what is antibody affinity maturation?
affinity maturation-
because antibodies can potentially be generated against millions of unique epitopes, the size of an organisim's genome would need to increase exponentially in order to every possible antigen- binding side.
What moderates weather so that highs and lows are less extreme?
Answer: Is the condition of Earth's atmosphere
Explanation:
The climate of Earth's atmosphere balances the seasons so that high and lows are less extreme.
What is Weather?Weather is defined as the state of the atmosphere, like as the degree to which it is hot or cold, wet or dry, calm or stormy, clear or cloudy. On Earth, most weather events occur in the troposphere which is the lowest layer of the planet's atmosphere present below the stratosphere.
Weathers refers to day-to-day temperature, precipitation, and other atmospheric conditions, while climate is the term for the average of atmospheric conditions over long periods of time.
There are several elements of Weather such as:
Wind speedHumidityTemperatureRainfallThunderSnowLightningThus, the climate of Earth's atmosphere balances the seasons so that high and lows are less extreme.
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How can you determine if the igneous intrusion is older or younger than Layer C. Explain how you determined your answer.
As a seedling , the strangler fig and host tree have a relationship that is described as commensalism . Why is commensalism a good description for this relationship ?
Answer:
It merely uses the host tree to get closer to the sunlight and rain, and finds nutrients in decaying leaves and soil caught in nooks of the host tree's branches . This is a case of commensalism: one organism benefits while the other is unaffected.
Explanation:
The relationship between the strangler fig and a host tree would be described as commensalism because the strangler benefits from the relationship while the host tree is unaffected.
Commensalism refers to a relationship between two organisms in which one of them (the commensal) benefits and the other (the host) is unaffected in any way.
As a seedling, the strangler fig grows harmlessly around the a host tree. As the seedling develops to a more mature plant, it starts extending its branches and roots around the host plant, eventually strangulating the host plant.
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Choose the stage that best matches the description given.
Body fluids begin to dry up, and the smell emitted is that of putrid butter:
th
after day 50
days 4-10
days 20-50
days 10-25
days 1-3
Answer:
the answer is 20 to 50 days
Explanation:
Answer:
days 20-50
Explanation:
took it on test 100%
PLEASE HELP
Natural selection is defined as
A.
the changes in the characteristics within a population that lead to survival.
B.
the process by which humans select the most desirable organisms in a population.
C.
the changes that occur in a population that do not affect survival.
D.
the changes that occur in an organism over its lifespan.
Answer:
A. the changes in the characteristics within a population that lead to survival.
Explanation:
those that cannot camoflauge or find a way to survive and reproduce, will die off.
Which of the following is not an intentional way of introducing nonnative species into an ecosystem?
a.
Restocking an overfished lake
b.
Introducing species of high value for harvesting
c.
Farming of species that are economically important
d.
Release of some species from an aquarium
e.
Recreational boating
Answer:e
Explanation:duh
Answer:
E) recreational boating
Explanation:
The only one that would be unintentional
What might your superhero iron man powers be?
Would your superhero iron man use his power for good or for evil?
PLEASE HELP ME.
Answer: They would be used for good to help others and the power would money?
Explanation: I want to help others & make the world a better place to live specifically the homeless or people with less money
What happened when the Argentine ants and the red imported fire ants went to war
with each other in the United States?
Help me ASAP
Answer:
They Bought started fighiting
Explanation:
An eating disorder is an illness in which people
Answer: by irregular eating habits and severe distress or concern about body weight or shape.
Explanation: Please mark me brainliest :)
Which prokaryotes contain peptidoglycan in their cell walls?
Answer:
Bacteria cell walls contain peptidoglycan in their cell walls.
Explanation:
How do the independent and dependent variables in an experiment compare?
A.
The independent variable controls the dependent variables.
B.
The dependent variable controls the independent variables.
C.
The independent and dependent variables have no effect on each other.
D.
The independent and dependent variables are the exact same as each other.
Answer:
The independent variable controls the dependent variables.
Explanation:
study island
The graph below shows drug levels in the blood and in a target organ through time, while taking Pill Type C in the Gizmo. The dosage schedule is one pill every two hours. What will eventually happen if the patient continues to take the pill on the same dosage schedule?
Answer:
I don't know man
Explanation:
Answer:
Correct Answer: B. The drug level in the target organ will level off and reach equilibrium.
Explanation:
As long as the dosage schedule is maintained, the drug level in the target organ and blood will stabilize. The reason for this is that as the concentration of drug increases in the organ and blood, the amount of drug removed by the kidneys increases as well, as each cubic centimeter of liquid removed from the blood by the kidneys contains a greater amount of drug. Eventually, the amount of drug removed in the time period between pills is equal to the amount that is added with each pill. As the graph below shows, the maximum organ drug level in this example is about 192 mcg/cc.
An object that is not moving, wants to do what? (Think law of inertia)
1.move
2.not move
3.first move, then stop, then 4.move agian
Answer:
2. Not move
Explanation:
An object at rest will stay at rest unless acted upon by an unbalanced force.
Which of the following is a function of the kidneys?
O A. To balance water and salts from food so cells neither shrink nor
burst
O B. To balance carbon dioxide and oxygen so cellular respiration can
occur
O C. To filter out fiber and bacteria and send them to the large intestine
O D. To filter out salts and fats and send them to the urinary bladder
Answer:
D. To filter out salts and fats and send them to the urinary bladder
Explanation:
Kidney is an excretory organ in the systems of certain living organisms e.g humans. It is a bean-shaped organ responsible for getting rid of waste products in our body via urine and maintaining homeostasis in the body.
Among the many excretory functions of the kidney, they help filter out electrolytes e.g salts and fats out of the blood and pass them to the urinary bladder through tubes called ureter. The waste products are eventually passed out as urine from the bladder.
Jonathan designed an experiment to plant lima bean seeds. His variable was to change what kind of light each plant received. He used a different kind of light with each plant. He hypothesized that the plant grown under the plant light would have the greatest amount of growth. Did the data support the hypothesis? Explain.
Answer:
d
Explanation:
When Mendel crossed tall pea plants with short pea plants all of the offspring were tall. Which of the following explains the tall gene?
A) The tall gene is peas is recessive
C) The short gene is peas is dominant
B) The short gene in peas is recessive
D) The tall gene in peas is dominant
Answer: D: The tall gene in peas is dominant
Explanation:
When alleles are heterozygous, dominant genes will "overpower" the recessive gene.
The offspring in the pea plants had both alleles of the gene, but despite this, all of the pea plants were tall. This is because the dominant gene, the tall gene, was expressed over the recessive gene.
The correct answer is D.
B is also correct, but the question asks us to explain the tall gene, not the short one.