Answer:
Based on everything that you have learned so far, provide an explanation for how the different shades of skin color from pinkish white to dark brown evolved throughout human history. Darker skin colors evolved because they provided increased fitness in early human populations living in equatorial Africa.
Explanation:
What is structure 1?
Answer:
Bro give a chart or something not just a question with no info.
Explanation:
Leaves of a healthy potted plant were coated with Vaseline to block stomata. Will this plant remain healthy for long? State three reasons for your answer.
➜ If waxy coating is made on the surface of leaf, loss of water in the form of water vapour does not take place. Even the gaseous exchange will not take place. So, photosynthesis will either be reduced or will not take place.
The plant will not remain healthy for long because:
[i] Exchange of gases will not take place.
[ii] Photosynthesis will either be reduced or will not take place due to lack of CO2.
[iii] Transpiration will not take place, so there will be no mechanism of cooling in hot weather.
correct answers only please!
which of the following describes photosynthesis?
the plant take in oxygen, water, and nutrients to make food for humans
the plant gets rid of carbon dioxide as a waste product
the plant takes in carbon dioxide, water, and sunlight to make food for itself
the plant reproduces in the chloroplast
Answer:
Explanation:
the plant takes in carbon dioxide, water, and sunlight to make food for itself.
D
Question 2
1 pts
Because the ANS is a visceral motor system, afferent pathways are of no importance
and actually are rarely found.
True
False
Answer:
The correct answer is - false.
Explanation:
The ANS is a system consider as the visceral motor system, however, the afferent pathways are the system that is used to flow the signals to the control center from taking from the receptor and are very essential for the homeostasis communication of the nervous system.
This pathway involves the neurons with the signals to the spinal cord and the brain as sensory data. This pathway is very common to provide communication between the receptor and spinal cord.
An individual with two different alleles for the same gene is
called
Answer:
an individual with two same alleles genes is called a heterozygous
a plane mirror is useful for seeing
It is estimated that the world human population reached 3 billion people in 1959 and 6 billion in 1999. Assuming a carrying capacity of 16 billion humans, write and solve the differential equation for Gompertz growth, and determine what year the population reached 7 billion. Was logistic growth or Gompertz growth more accurate, considering world population reached 7 billion on October 31,2011
Answer:
i ) Gompertz equation :
[tex]\frac{dP(t)}{dt} = \alpha In ( \frac{K}{P(t)} )P(t)[/tex]
ii) The year that population reaches 7 billion is 2013
iii) The logistic growth was more accurate
Explanation:
i) write and solve the differential equation for Gompertz growth
Gompertz equation :
[tex]\frac{dP(t)}{dt} = \alpha In ( \frac{K}{P(t)} )P(t)[/tex]
∝ = growth rate
k ( carrying capacity ) = 16 * 10^9
P(t) = population at time t
ii) Determine what year the population reached 7 billion
The year that population reaches 7 billion is 2013
solution attached below
iii) Determine if logistic growth or Gompertz growth was more accurate considering world population reached 7 billion on October 31,2011
The logistic growth was more accurate because the when Logistic growth model was used, the year in which the population reached 7 billion was 2010 and this value is more closer to 7 billion on October 31 2011 ( given value )
What is a pill bugs habitat
Answer:
The pillbug's main habitat is under mulch, fallen leaves, and rocks. Pillbugs are nocturnal and require humid conditions during the day. Pillbugs are generally found in soil with sowbugs, millipedes, and earthworms. Their preferred soil habitat is composed of organic matter and has a neutral to alkaline pH.
Compare and contrast gradualism and punctuated equilibrium. Provide at least one comparison and one difference in your answer. You may use examples for each if that helps you with answering the question.
Answer:
Gradualism and punctuated equilibrium both are the process of evolution of species over time. However, the gradualism process involves the evolution that occurred slowly, occurring in small periodic changes in the gene pool over a long period of time. Whereas Punctuated equilibrium takes place there are longer periods of apparent stasis interrupted by the sudden change.
They both help in finding the relative change in evolution rate and assist in the study of the anatomical changes occurred during the evolution in different kind of animals or organisms.
Please help!!!! 20 points
Answer:
Producers: Leaves and the other plant thing (i don't know the name of it)
First-level consumers: Squirrel, grasshopper, rabbit, rat
Second-level consumers: Frog, rat
Third-level consumers: Fox, owl, snake
Herbivores: Grasshopper, rabbit, squirrel
Carnivores: Frog, fox, snake, owl
Omnivores: Rat
After a fire in a Florida pine forest, new growth occurs. Which process allows this to happen?
A succession
B
competition
С
predation
D
symbiosis
Answer:A) succession
Explanation:
Need help with this will make brainliest if right
Research on the different thermal conductivities of different materials. From the different values of the thermal conductivities give seven example of conductors and seven example of insulators
Answer:
conductors are like silver, gold, copper, steel, sea water, and iron. insulators are rubber, glass, oil, diamond, dry wood, and insulation.
Explanation:
Which factors affect the gravitational force between two objects?
Answer: The size of each object and the space between them.
When dealing with the force of gravity between two objects, there are only two things that are important – mass, and distance. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.
PLSSS ANSWER NOWWW
why is the mitochondria and the brain alike?
Answer:
Both control
Explanation:
Brain controls the body while mitochondria controls the cell
How is the food you choose to eat used to create energy? referring to cellular respiration
Answer:
Through the process of cellular respiration, the energy in food is converted into energy that can be used by the body's cells. During cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is transferred to ATP.
Can viruses live through mutation and natural selection
Answer:
sure why not
Explanation:
as the virus mutates, it may increase, or lessen the chance for the virus to survive a battle against its host. like your regular living organisms (though keep in mind viruses are not considered living), some survive and some die due to natural selection and mutation.
10. What is an entomologist?
Answer:
An entomologist is a person who studies, or is an expert in the branch of zoology. (A branch in zoology concerned with insects.)
Explanation:
What does it mean for a virus to "infect" a cell?
Tir
11
The virus lands on the outside of the cell and remains there until the cell produces more viruses.
The virus lands on the outside of the cell and eats proteins on the surface of the cell.
The virus lands on the outside of the cell and injects its genetic material into the cell.
The virus lands on the outside of the cell and injects its proteins into the cell.
Answer:
I think the answer is...
the virus lands on the outside of the cell and injects its genetic material into the cells
i'm not sure but this is what I think...
Explanation:
Viruses usually inject their all genetic material into one cell to individual virion contains multiple copies of its fusion protein.
Why is family history thought to be important and a good predictor of an individual’s disease risk factor?
Because family members most closely represent the unique genomic (DNA) and environmental interactions that individuals experience
Because doctors can determine your family’s risk from your ailments
It is important to know family history so that a doctor can issue the right antibiotic to prevent cancer
So that doctors can know how your 1 st line of defense reacts to antibiotics mi
Answer:
The first answer, Because family members most closely represent the unique genomic (DNA) and environmental interactions that individuals experience. Is right
Explanation:
GIVING BRAINLIEST ANSWER CORRECTLY FOR 40 POINTS
List 3 people from the history of biotechnology and write one sentence about each persons contribution
Answer:
Karl Ereky
Explanation:
He discovered it
Details are underlated or irrelevant details to the topic at hand
Seeds inside the closed vessel does not give new seeding ,why?
Answer:
It is not able to produce a new seedling as it requires sunlight and air to prepare its own food and the process of photosynthesis does not occur. So, the seed inside the closed vessel does not give new seedling.
Explanation:
Answer:
It is not able to produce a new seedling because it needs the sun and air to prepare it's own food and the process of photosynthesis does not occurs
Explanation:
What are the three main differences between active transport and passive transport?
Answer:
i hope this helps : )
Explanation:
This act was signed into law on August 6, 1965, by President Lyndon Johnson. It outlawed the discriminatory voting practices adopted in many southern states after the Civil War, including literacy tests as a prerequisite to voting.
Using the picture below, what is the BEST question that a student could ask that would help determine which aquatic biome this is depicting?
A.
Does the temperature of the water affect the salinity?
B.
Is there a variation in water pressure throughout the day?
C.
Is there a fluctuation in water salinity throughout the day?
D.
Is there variation in water temperature throughout the day?
Answer:
Explanation:
Using the picture below, what is the BEST question that a student could ask that would help determine which aquatic biome this is depicting?
A. x
Does the temperature of the water affect the salinity?
B. x
Is there a variation in water pressure throughout the day?
C. x
Is there a fluctuation in water salinity throughout the day?
D. right
Is there variation in water temperature throughout the day?
What is an antiviral drug? Why is it different from an antibiotic?
Answer: Unlike most antibiotics, antiviral drugs do not destroy their target pathogen; instead they inhibit its development.
Do you think humans would be
as dominant if the dinosaurs
were still present?
Answer:
Probably not, as we might have evolved to become prey instead of predator
Answer:
i dont think so.
Explanation:
the dinosaurs would've already ate us, and crushed the cities. dinosaurs are too dangerous for us. especially the T-rex.
when was Nigeria amalgamated?
Answer:
January 1, 1914,
Explanation:
The Venn diagram provided compares and contrasts two domains of living things. Both domains include species of
bacteria. Select ALL of the terms which could be applied to only group A in the diagram.
A)
ancient
B)
unicellular
may be pathogenic
D)
live everywhere in the environment
E)
cell wall is made of peptidoglycan
Answer:
C,D,E
Explanation:
i just did it and got them right.Hope this helps :}
This group of Bacteria can be pathogenic, ubiquitous in the environment whose cell walls are composed of peptidoglycan. So, the correct options are C, D and E.
What is Bacteria?
Bacteria are defined as ubiquitous, mostly free-living organisms that contain a single biological cell that constitute a large domain of prokaryotic microorganisms. Bacteria are a few micrometers in length that were among the first life forms to appear on Earth, and are present in most of its habitats.
Some bacteria are harmful that serve a useful purpose that support many forms of life, both plant and animal, and are used in industrial and medicinal processes. This group A mentioned in the above example of Bacteria can be pathogenic, ubiquitous in the environment whose cell walls are composed of peptidoglycan.
So, the correct options are C, D and E.
Learn more about Bacteria, here:
https://brainly.com/question/8008968
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What is biomass burned to produce
Answer:
Burning either fossil fuels or biomass releases carbon dioxide (CO2), a greenhouse gas. However, the plants that are the source of biomass for energy capture almost the same amount of CO2 through photosynthesis while growing as is released when biomass is burned, which can make biomass a carbon-neutral energy source.