Which is a type of star system? dim stars solar system planets wobbling stars globular clusters
Answers
Globular clusters is a type of star system where the stars are tightly bounded by gravity.
What is a star system?A star system can be defined as small number of stars that orbit around each other and are bound by gravitational force of attraction.
It is also called a stellar system.
Globular clusters is a type of star system with the following features;
It is composed of hundreds or thousands of low-metal old stars. Stars are similar to those in the spiral galaxyStars are tightly bound by gravity.Hence, globular clusters is a type of star system.
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Answer:
D) Globular clusters
Explanation:
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Related Questions
2. why is returning by-catch to the sea not always useful as it might appear?
Answers
Returning by-catch to the sea is not always useful as the sudden change in pressure will result in damage to internal organs of fishes.
What is by-catch?By-catch refers to other sea animals which are caught along with the intended catch in a fishing expedition.
In some instances some people tend to return by-catch to the sea.
However, this is not always useful as the pressure above sea level or on the sea surface is less than that in the depths of the sea.
A sudden change in pressure will result in damage to internal organs of fishes.
Therefore, returning by-catch to the sea not always useful as it might appear.
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5. The burning of fossil fuels has increased the carbon dioxide content of the
atmosphere. What is a possible effect that the increased amount of carbon
dioxide is likely to have on our planet? (SC.6.E.7.9; SC.E.6.7.6)
a. A warmer climate
b. A cooler climate
c. Lower relative humidity
d. More ozone in the atmosphere
Answers
One of the possible effects of increased carbon dioxide concentration on our planet would be a warmer climate.
Greenhouse effectCarbon dioxide is one of the numerous greenhouse gases that exist in nature. The gases are responsible for the warming of the planet.
Carbon dioxide and other greenhouse gases form a blanket layer in the atmosphere and trap some of the reflected solar radiations from the sun, preventing them from escaping back to space.
The more the concentration of greenhouse gases in the atmosphere, the more the solar radiation that is trapped and the warmer the earth gets.
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In twenty years, if development and impervious surfaces increase to over 30% of the land area in the watershed, explain how the increased stormwater runoff into the river and its tributaries could affect the macroinvertebrates and water quality of the Little Gunpowder River ecosystem.
Answers
The increase in the flow of solid particles into the water will upset the delicate balance in the ecosystem.
What is storm water?The term storm water is used to describe the water that drains out after a rainfall. It usually contains many particle which could upset a river ecosystem.
If there is an to over 30% of impervious surfaces, more solid particles will flow into water and could destroy the small invertebrates in water thereby upsetting the balance in the ecosystem as small fishes may no longer fond food to eat.
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Which of the following choices is quickly becoming the second leading cause of disease and death in the United States?
alcohol abuse
HIV/AIDS
obesity
drug abuse
Answers
Answer:
HIV/AIDS
Explanation:
IN THE UNITED STATES PEOPLE SLEEP WITH ANIMALS AND THEY CONTACT IT
Which of the following could result in the extinction of a species?
Answers
Increased population size will result in the extinction of a species of organisms.
What is Extinction?This is defined as the dying out or disappearance of species as a result of various factors.
When population size increases, it leads to unavailability of food and reduction of species due to starvation and death.
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Changes in environmental conditions always result in new ecosystems and loss of biodiversity characterized by an increase in the number of some species, the evolution of new species, and the extinction of some species.
Answers
Changes to the environmental conditions can indeed result in new ecosystems and a change in the species equilibrium.
Ecosystem disruptionThe abiotic conditions of an ecosystem determine the kind of species that will inhabit the ecosystem
A change to the abiotic or environmental conditions will likely result in a new ecosystem entirely. Organisms that are able to adapt to the changes will gradually fade off the ecosystem while those that are able to withstand the changes will proliferate and dominate the populations of organisms in the ecosystem.
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Evaluate the information in order to construct an argument about the removal of the Conowingo Dam as a solution to address the American Eel
population issue. Your argument should:
• Clearly state your position - either in favor of removing the dam or opposed to its removal as a solution to the problem
• Include evidence-specific environmental, social, and economic costs and benefits related to your position
• Use scientific reasoning to explain how the costs and benefits you have selected support your position.
Answers
Conowingo Dam eliminated the access of the American Eel population to 450 miles of the riverine habitat, thereby the removal of this dam might be beneficial for the species.
What is Conowingo Dam?The Conowingo Dam refers to one of the largest hydroelectric energy plants in the USA (Conowingo city, Maryland).
The American Eel can eat different animals in the riverine habitat such as small fish, crustaceans, shrimp, etc.
In conclusion, Conowingo Dam eliminated the access of the American Eel population to 450 miles of the riverine habitat, thereby the removal of this dam might be beneficial for the species.
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Which of the following groups of organisms contains a cell wall?
1. Plantae
11. Animalia
Ill. Fungi
IV. Eubacteria
O A. I, I1, IlI, IV
O B. 1, 11, IM
O C. I1, Ill
O D. I, Ill, IV
Answers
A cell wall is present in the kingdoms Archaebacteria , Eubacteriaand Fungi
The groups of organisms containing a cell wall are Plantae, Fungi, and Eubacteria. The correct option is D. I, Ill, IV.
What is a cell wall?A cell is the outer covering of the cell, which provides protection and rigidity to the cell. It is made up of lipid and triglyceride or cellulose. The cell wall is presenting many cells, like plant cells, fungi, and bacteria cells.
The cell wall is made up of different substances in different animals. Plant cells have a cell wall that surrounds their plasma membrane and offers tensile strength as well as defense against osmotic and mechanical stress. Additionally, it enables the development of turgor pressure or the pressure of the contents of the cell against the cell wall.
Thus, the correct option is D. I, Ill, IV.
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PLEASE HELP IM STUCK
Answers
Answer:
C. The Benthic Zone
Explanation:
It is home to lots of species of animals in the zone
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The air that enters and leaves the lungs during one quiet, resting respiratory cycle is called the
B functional residual capacity.
D tidal volume.
Answers
Identify the technique that the scientists used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes
Answers
The techniques used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes are gene editing (CRISPR/CAS9) and gene splicing.
What is CRISPR/CAS9?The CRISPR/CAS9 tool is a genome editing system used in molecular biology laboratories to insert genetic sequences.
The CRISPR/CAS9 system has a high specificity to make genetic modifications in the laboratory.
In conclusion, the techniques used to remove the ZRS DNA from mice and replace it with the ZRS section from snakes are gene editing (CRISPR/CAS9) and gene splicing.
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1. which phrase describes how biological chemicals provide evidence to support that life changes over time?
a) some animals exhibit similar structures, possibly due to a common ancestor
b) some animals exhibit similar stages of embryonic development
c) some animals exhibit similar proteins
d) some animals exhibit structures that are no longer used for any purpose
2. which phrase describes how homologous structures provide evidence to support that life changes over time?
a) some animals exhibit structures that are no longer used for any purpose
b) some animals exhibit similar stages of embryonic development
c) some animals exhibit similar structures, possibly due to a common ancestor
d) some fossils exhibit similar biological proteins
Answers
The statements 'animals exhibit similar proteins' (Option C, question 1) and 'exhibit similar structures due to a common ancestor' (Option C, question 2) support life changes over time.
What is evolution?Evolution refers to descendence with modification, which means that proteins are similar in related species.
Protein building blocks (amino acids) can also change over evolutionary time due to descendence with modification.
In conclusion, the statements 'animals exhibit similar proteins' and 'exhibit similar structures due to a common ancestor' support life changes over time.
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Where in a eukaryotic cell does the electron transport system operate?
a. cytoplasm
b. matrix of the mitochondrion
c. cristae of the mitochondrion
d. endoplasmic reticulum
Answers
Question 5 of 10
Human epithelium contains a layer of cube-shaped cells. If the length, height,
and width of such a cell is 1 micrometer (um), what is the cell's ratio of
surface area to volume?
Answers
Answer:
The ratio is 6 to 1
Explanation:
1. a 6 sided cube of 1 mM has a volume of L * W* H (1*1*1=1) 1 mM.
2. a 6 sided cube has a surface area of one face surface area times 6 or (L * W) * 6 = 1mM * 1 mM * 6 = 6
so the ratio of surface to volume is 6/1.
What is a chromosome?
Answers
Answer:
In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Explanation:
Chromosomes are thread-like structures in which DNA is tightly packaged within the nucleus. DNA is coiled around proteins called histones, which provide the structural support. Chromosomes help ensure that DNA is replicated and distributed appropriately during cell division.
Answer: A chromosome is a thread-like structure made up of DNA. Chromosomes are found in the nucleus of each cell
or just DNA makes up a chromosome
Explanation:
hope this help
Groups of specialized cells working together are called.
Answers
When humidity is high Group of answer choices transpiration rates decrease. transpiration rates increase. transpiration ceases altogether. leaves absorb moisture from the air. stomata open wider.
Answers
Answer:
A) Transpiration rates decrease
Question 12 of 30 Which of the following best describes the goal of technology? A. To apply scientific knowledge to ethical decision making B. To use scientific knowledge to solve problems or to make tasks easier C. To make more industrial jobs D. To improve the economy
Answers
what happens when a cold front replaces a warm front
Answers
Answer:
When a cold front overtakes a warm front, it creates what's called an occluded front that forces warm air above a frontal boundary of cooler air masses.
Which part of the nervous system is the first to respond when Joshue feels a raindrop fall on his arm?
Answers
Answer:
The right answer is the sensory neuron.
Explanation:
The sensory neuron, or sensory neuron, is a neuron located in a sensory ganglion that plays a role in the perception of a stimulus. Sensory neurons are often referred to as "afferent fibers". For example, a sensory neuron can be used for the perception of heat, or contact with an object.
During the industrial revolution the population of peppered moths went from white to black in color this was because
Answers
Answer:
During the industrial revolution the population of peppered moths went from white to black in color this was because the trees the peppered moths lived on became darker. Thus, it became easier for predators to find white moths than it was to find black moths.
Explanation:
The carbon cycle involves an exchange of carbon between _______.
a.
the geosphere and atmosphere
b.
the atmosphere and hydrosphere
c.
the geosphere and hydrosphere
d.
the geosphere, hydrosphere, and atmosphere
Answers
Answer:
D
Explanation:
how do organs work together to form specific functions
Answers
Answer:
Sistemas orgánicos
Explanation:
Aunque cada órgano del cuerpo realiza sus funciones específicas, los órganos también funcionan juntos por grupos, a los que se denomina sistemas orgánicos (ver Principales sistemas orgánicos). Los médicos clasifican las enfermedades y sus propias especialidades médicas de acuerdo a los diferentes sistemas orgánicos.
Which routine is best suited for muscular endurance?.
Answers
e
00
O
O
O
D
00
O
A
B
Which of the following states why one of the models is better for moving
more nutrients in and out of the cell?
A. B is better because it has more surface area.
B. B is better because it has more volume.
C. A is better because it has more volume.
D. A is better because it has less surface area.
Answers
Answer:
A
Explanation:
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HELPPP ASAP!! A population of skunks lives in a woodland habitat. The skunks are unable to leave the habitat because of a large mountain. Describe two reasons this population is not at Hardy-Weinberg Equilibrium.
Answers
Some of the conditions are there that must be met for a population or an allele to be in Hardy-Weinberg equilibrium equation are:
1. The population of species must be very large.
2. There must be no migration and population must be isolated in a species.
3. There must be no mutations in a population of species.
4. There must be random mating, which means there are no mating preferences.
So, a population will not be according to Hardy-Weinberg Equilibrium if it is small, or there are , which is not raised, but mutations are expected to occur in future. Skunks can also migrate to another region of a woods despite the presence of a large mountain. As a result of possible mutations and migrations, the population is not in Hardy-Weinberg equilibrium.
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What happens to the products of the Krebs cycle? (Answer options are in photo)
Answers
Answer:
A. 1st one (Most Becomes Reactants in the electron transport chain
Explanation:
drive the electron transport chain and oxidative phosphorylation
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How Is The Fruit Like A Dichotomous Key?
Answers
Answer:
apple tree, water-lily, fir tree, dandelion, astroturf, seaweed. Dichotomous keys may be simple or complex depending on what is being identified.
Explanation:
how do bacteria cause disease?
Answers
In addition to cytoplasm, most human body cells also have.
Answers
Answer:
Nucleus
Explanation:
There are many answers but some are :
Nucleus , Cell membrane , mitochondria , ribosomes
Hope this helped and have a good day
All cells contain cytoplasm, which is made up of cytosol, a jelly-like substance. The cytosol holds the internal structures in suspension.
What is the function of cell organelle in different cells?In addition to the nucleus, eukaryotic cells also have other organelles. An organelle is a cytoplasmic structure that serves a specialized purpose for the cell.
For instance, organelles called vacuoles store materials in the cell, whereas organelles called mitochondria supply energy.
The space between the plasma membrane and the nuclear envelope is known as the cytoplasm in eukaryotic cells, which have a nucleus.
The term “cytoplasm” refers to the entire inside the plasma membrane in prokaryotes, which are without a nucleus.
Therefore, Some cells additionally have a nucleus, cell membrane, mitochondria, and ribosomes in addition to their cytoplasm.
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