11. The flowchart below depicts a potential sequence of events in an organism.
Which phrase belongs in the box X of the flowchart?
A Decrease in genetic variability of offspring
B Decreased number of altered genes
C Increase in the production of functional gametes
O
D Increased chance of cancer
The cell membrane serves many functions. One of the cell membrane's functions is to help the cell maintain homeostasis. Which of the following statements best supports this claim?
A. The cell membrane contains phospholipids.
B. The cell membrane contains a polar region and a nonpolar region.
C. The cell membrane regulates what goes in and out of the cell.
D. The cell membrane contains proteins.
Answer:
C. The cell membrane regulates what goes in and out of the cell.
Explanation:
Answer:
A. Una membrana contiene fosfolipidos
Explanation:
You are having a conversation with your younger sibling. He believes the moon produces its own light, similar to the sun. How would you explain to him the reason we are able to see the moon at night and why we see different phases of the moon.
Who was the first person to base a system of classification on organisms having similar structures
Answer:
Linnaeus
Explanation:
1. Linnaeus set up a classification system based on structural similarity. He thought that the organisms that looked alike were the most closely related.
Answer:
Linnaeus
Explanation:
Linnaeus made a classification system based on structural similarity of the organism. He thought that the organisms that looked alike were the closely related to each other.
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According to theory, which term best describes the universe before the big bang? a densely packed space a cloud of gas and dust a planet a star
The term that should be best described is Option C. A cloud of gas and dust.
Information regarding the big bang:We can never see the Big Bang due to photons were not free to progress within the universe yet. It is also important to realize that the word "universe" represents an entirety of continuation. it is everything that has, does, and ever will survive.
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Answer: A densely packed space.
Explanation: I took the test.
What percentage of alleles are
homozygous recessive?
50%
25%
The whip-like tail of a protozoan is called a:
flagellum
cilia
O pseudopod
none of the above
HELPPPP !!!
Explanation:
Flagellum
........
...
A pond ecosystem remains about the same for many years. Then beginning one year, fertilizer from a new housing development is washed into the pond water. More fertilizer is added every year. As explained by Darwin's theory of natural selection, which of these events is likely to occur?
I. Some populations of the pond will increase in number.
II. Some populations of the pond will decrease in number, possibly to zero.
III. New populations will arrive in the pond.
a
II. only
b
I., II., and III.
c
I. and II.
d
II. and III.
Answer:
The answer is A.
Explanation:
When excess of fertilizer is added to the pond, the population of organisms in the pond will decrease due to the lacking of oxygen.
(Correct me if I am wrong)
How are genotypes for recessive traits written? (Capital letters or lowercase letters). Select the
correct answer.
Answer:
genotype = the genes of an organism; for one specific trait we use two letters to represent the genotype. A capital letter represents the dominant form of a gene (allele), and a lowercase letter is the abbreviation for the recessive form of the gene (allele).
Explanation:
n three (3) sentences, explain the function of a vacuole in plant cells.
Answer:
A vacuole is used for temporary storage of water, waste products, food, and cellular material. ... Vacuoles are larger in plant cells than animal cells to store the water and other materials needed by the cell.
Answer:
the answser above me is correct
Explanation:
What is a hypothesis? Explain.
Answer:
A hypothesis is a tentative statement about the relationship between two or more variables. It is a specific, testable prediction about what you expect to happen in a study.
Explanation:
Answer:
a testable prediction that regards the possible outcomes of a study. (aka an educated guess)
Explanation:
The initial building block in the scientific method is a scientific hypothesis. It is defined by many as a "informed guess," based on prior experience and observation. While this is true, the definition can be extended. The theory also provides an interpretation as to why the assumption could be right.
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Everyone's skin contains about the same number of melanocytes even though people come in many different colors. How is this possible?
Question 2: How and why did changes in the environmental conditions affect carrying capacity in this
scenario? Recall the scenarios: 0-15 years, Harsh winter, 15-30 years, Harsh winter and Cold spring; 30
45 years, Harsh winter, Cold spring, and Hot summer.
Answer:
Changes occurs in the environmental conditions directly affect carrying capacity of the ecosystem.
Explanation:
Carrying capacity of the ecosystem refers to the capacity of the environment which adjust plants and animals in a specific atmospheric condition. Suppose in harsh winter, the temperature of the ecosystem is very low which is unbearable for most of the plant and animal species, so very low number of plants and animals are able to live in that environment. In the ecosystem where the winter is harsh and the spring is cold, the population of living organism are more decreasing. If the ecosystem has Harsh winter, Cold spring, and Hot summer, this type of environment hold very low number of living species due to high variation in the environment.
Answer:
During the first 0-15 years there was hardly no environmental factors that affected the population growth. Since the population growth, and the food growth was still alive, the carrying capacity still remained strong at around 300 rabbits by the 15th year. Then during the 15-30 years with the harsh winters and cold springs, the rabbit population started to decrease as the rabbits weren’t surviving as well as they used to, lowering the capacity. The food source was also limited, causing even more of a lower carrying capacity at around 200 rabbits around the 30th year. Finally during the 30-45 year mark with the cold winters and springs, and during the hot summers, the rabbit population went down even more. The capacity went down because the food was so limited that there was not enough food for the population, eventually leading the rabbit population down at 100 rabbits during the final 45th year.
Explanation:
Which two characteristics do organisms in kingdoms Plantae and Animalia
have in common?
O A. They are multicellular.
B. They have eukaryotic cells.
C. They are photosynthetic.
O D. They have prokaryotic cells.
SUBMIT
Answer:
B: they have eukaryotic cells. & A: they are multicellular.
Explanation:
The characteristics shared by plants and animals include A. They are multicellular and B. They have eukaryotic cells.
Eukaryotes organisms are organisms whose cells have a nucleus and membrane-bound organelles; whereas prokaryotic organisms are unicellular organisms that do not have membrane-bound structures and/or organelles
Eukaryotic organisms include animals (kingdom Animalia), plants (kingdom Plantae), fungi (kingdom Fungi), and protists (Kingdom Protista).
Multicellular organisms are organisms composed of two or more cells. Multicellular organisms include plants, animals and fungi.
Photosynthetic organisms are organisms that make their own food from sunlight (e.g., plants).
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What are your current perceptions of the flu vaccine? Do you think these recommendations are appropriate?
Answer:
The flu vaccine is a medicinal shot which is supposed to prevent/ and or decrease your chances of getting the flu. It is supposedly working as stated by the producers of this vaccine however many children have been given this vaccine and it dosen`t work. The recommendations are appropriate as it is better to be safe than sorry. However there are some negative effects. For example a person would get a cold afterwards and this of course is sickness. Overall, I recommend not highly, but as i stated earlier it is better to be safe than sorry.
Explanation:
What is the equation that calculate growth rate in a population including information on migrations
Answer:
Population Growth Rate
It is calculated by dividing the number of people added to a population in a year (Natural Increase + Net In-Migration) by the population size at the start of the year. If births equal deaths and there is zero net migration, the growth rate will be zero.
Explanation:
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How are Humans and the Environment defined in today's world?
Which of the following is a likely geographic barrier for speciation of finches?
a open field of grass
b mountain range or a canyon
c islands surrounded by ocean water
d forrest of trees
the Geographic barrier for speciation of finches are---
b. mountain range or a canyon
The graphs below show the changes in crab color at one beach.
Which statement best explains the change in the number of light tan and dark tan crabs from 1950 to 1990?
a
Both light tan and dark tan body color provided an advantage to the crabs, regardless of their environment or habitat.
b
Either light tan or dark tan body color, but not both colors, provided an advantage to the crabs, regardless of their environment or habitat.
c
Both light tan and dark tan body color provided an advantage to the crabs on this beach, but not necessarily in other crab habitats.
d
Light tan body color provided an advantage over dark tan body color on this beach, but not necessarily in other crab habitats.
Answer:
C. Both light tan and dark tan body color provided an advantage to the crabs on this beach, but not necessarily in other crab habitats.
Explanation:
The changes in the number of light tan and dark tan body color of crabs that occured can be described as a diversifying or disruptive selection.
This disruptive selection occurs when individuals with extreme traits on both ends of the spectrum become selected against individuals of ntermediate or medium traits.
In the case of the crab, their environment favors the selection of both extreme values as against those intermediate individuals, as both light tan and dark tan body color of the crabs gives them advantage over others in this particular environment. This may only be obtainable in this environment or similar beach environment with the same settings and conditions.
Which form of carbon dioxide affects global temperatures?
A. Carbon stored in plants
B. Dissolved carbon dioxide
C. Atmospheric
D. Geologic
Answer:
A carbon stored in plants
Explanation:
What processes found at a convergent boundary will help form the following rock? Sedimentary Rocks:
Answer:
At many convergent boundaries a subduction zone is formed which drives crust down toward the mantle where the rock is melted and turned to igneous rock.
Explanation:
Where an oceanic crust meets a continental crust at a convergent boundary the oceanic crust is subducted under the continental crust. As the oceanic crust is driven down the friction, pressure and heat of the mantle melts the oceanic crust. The melted crust become igneous rock and often comes to surface in volcanos found near the convergent boundary.
The melted crust that doesn't reach the surface becomes igneous granite while the melted crust that does reach the surface becomes lava.
The question unanswered is how thick layers of oceanic crust ends up on the continents when what is observed today is the destruction of oceanic crust at subduction zones, due to convergent boundaries.
I have seen that there is a new species of spider found that has wings. Is this true? If so do they fly or glide? And are they found in the US?
Answer:
It is true that there are a species of flying spiders. And yes, they do fly, not glide. They also have been seen in the US
Explanation:
Which level of organization in the human body involves two or more tissue types working together to perform specific, complex functions?
Multiple Choice
Organ level
Tissue level
Cellular level
Organismal level
Answer: organ level
Explanation: Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.
Which statement about basaltic magma is false?
a. It forms when rocks in the upper mantle melt
b. It contains small amounts of silica
c. It has high viscosity
d. It forms on oceanic and continental crust
Basaltic magmas tend to be fairly fluid (low viscosity).
So, C.
The statement, that is, basaltic magma has high viscosity is false.
• The molten rock enriched in magnesium and iron and less amount of silica is known as the mafic lava or basaltic magma.
• The density of basaltic magma is very high and thus it gets stopped in the continental crust and get crystallize. Thus it forms on oceanic and continental crust.
• Basaltic magma is generally produced by direct melting of the mantle part of the Earth, that is, the part of the Earth underneath the outer crust.
• The viscosity of basaltic magma is very less, that is, it exhibits low viscosity. However, it is 10000 to 100000 times more viscous in comparison to water.
Thus, the false statement is option c.
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Which objects in space formed from the huge disk of ice and debris beyond the outer planets?
Answer:
Pluto and comets
Explanation:
i just took the quiz and it was right hope i helps yall ;3
Produces two daughter cells.
Mitosis or Meosis
Answer:
Mitosis.
Explanation:
In mitosis parent cell is divided into two identical daughter cell. In meiosis parent cel is divided into four daughter cells.
On April 20, 2010, an explosion on the Deepwater Horizon Macondo oil well drilling platform released 4 million barrels (636,000 cubic meters) of oil into the Gulf of Mexico. It took scientists and engineers nearly three months and several different attempts to cap the well. The Macondo oil well was located 1524 m (5000 feet) below the surface of the water, about 80 km (50 miles) off the coast of Louisiana. The spill affected 2113 km (1300 miles) of shoreline along the coasts of five states. Most crude oil contains 84–87% carbon by weight. Scientists have not yet fully assessed the environmental impact of the accident.
Computer modeling can be used to help improve cleanup and response systems for the next major oil spill. Which of these uses demonstrates how computer modeling can be used to minimize the impact of another spill?
a
Creating a model of how the oil spread through the Gulf of Mexico to predict what areas need the greatest amount of protection.
b
Calculating the total oil that entered the Gulf of Mexico during the spill.
c
Recording the number and type of each dead organism collected during the spill.
d
Finding the average flow rate of the oil through the burst pipeline during the spill.
Answer:
I would pick a, because if you can see where the most oil spills or where it flows it will be easier to predict when another spill is about to happen.
Explanation:
Name 1 physical property of water.
Answer:
surface tension
Explanation:
Answer:
Water has high specific heat.
Explanation:
Specific heat is a required amount of energy to change the temperature of a substance. Because water has a high specific heat, it can absorb a large amount of heated energy before it beings to get hot.
Which of these practices does the most to keep the water table from
dropping near a farm?
Answer:
Drip irrigation
Explanation:
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Which bone cells would be called on to chew up the bone and put more calcium in the blood?
a. Osteophytes
b. Osteopaths
c. Osteoclasts
d. Osteoblasts
e. Osteocytes
Answer:
Osteoblasts. is the answer