Answer:
Carbon dioxide, CO2, is a chemical compound composed of two oxygen atoms and one carbon atom.
Explanation:
Answer: No number means one atom. For CO2 there is one atom of carbon and two atoms of oxygen. For H2O, there is one atom of oxygen and two atoms of hydrogen. A molecule can be made of only one type of atom.
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The Sun is classified as which type of star?
A. black hole
B. main sequence
C. neutron
D. supergiant
Answer:
Our Sun is categorized as a G-type yellow-dwarf main sequence star.
State one way the immune system reacts when a virus enters the body.
Guys pls help me!!!
Answer:
The immune system recognizes and destroys, or tries to destroy, substances that contain antigens. Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens
Which statement is true regarding type 1 diabetes?
1. Type 1 diabetics are considered insulin-dependent diabetics.
2. Type I diabetics acquire the condition later in life.
3. Obesity is a cause of Type 1 diabetes.
4. Type I diabetics can control their diabetes with diet and exercise.
Answer:
option 1- type 1 are considered insulin dependent
Explanation:
the other options all describe type 2
Answer:
1. Type 1 diabetics are considered insulin-dependent diabetics.
Explanation:
Type 2 diabetes acquires later in life not Type 1.
Type 1 diabetes is thought to be caused by an autoimmune reaction (the body attacks itself by mistake) that destroys the cells in the pancreas that make insulin, called beta cells. This process can go on for months or years before any symptoms appear
Type 2 control with diet and exersize while as Type 1 is controlled by insulin.
WILL GIVE BRAINLIST!!! How do floods droughts and fires change the characteristics of an ecosystem?
Answer:
heat waves have reached record intensity in some regions . by daily precipitation characteristics alone; the relevant mechanisms are more Forest management and fire suppression practices can also alter this and alter the carbon cycle if ecosystems change from higher to lower carbon
Explanation:
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Changes in _____ result in the formation of metamorphic rocks.
a. Weathering
b. Sedimentation
c. BothAandB
d. Temperature and Pressure
Answer:
During metamorphism the mineral content and texture of the protolith are changed due to changes in the physical and chemical environment of the rock. Metamorphism can be caused by burial, tectonic stress, heating by magma, or alteration by fluids.
Explanation:
Answer:
thanks
have a good day :)
Explanation:
What insect/animal improves the fertility of soil by breaking down once-living matter and aerating soil?
Answer:
please give me brainlist and follow
Explanation:
Earthworms pass both soil and organic matter through their guts, in the process aerating the soil, breaking up the litter of organic material on its surface, and moving material vertically from the surface to the subsoil.
What do red blood cells carry?
Answer:
red blood cell carry oxygen
hope it helps.
Answer:
Red blood cells carries oxygen .
hope it is helpful to you
7. Cells will generally divide when? *
Answer:
cells will generally divide when reproduction occurs
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Explain the process of when a wave occurs.
Science PLZ HELP
Answer:
energy passing through the water, causing it to move in a circular motion. When a wave encounters a surface object, the object appears to lurch forward and upward with the wave, but then falls down and back in an orbital rotation as the wave continues by, ending up in the same position as before the wave came by.
Explanation:
Answer:
Waves are most commonly caused by wind. Wind-driven waves, or surface waves, are created by the friction between wind and surface water. The gravitational pull of the sun and moon on the earth also causes waves.
Unlike other organelles, ribosomes are not surrounded by a
Answer:
1. Membrane
Explanation:
Answer:
a membrane
Explanation:
What systems play a part in getting rid of waste materials from the body? What waste does each system eliminate?
Answer:
The cells of the body produce waste materials. The body needs to get rid of these waste materials because they can make us sick. Getting rid of this waste keeps us healthy.
The genetic code of a strand of DNA is determined by a specific sequence of
A. sugar molecules.
B. nucleotides.
C. covalent bonds.
D. ATP molecules.
Answer:
B
Explanation:
the answer is nucleotides
explain how thyroxine production is an example of homeostasis
Explanation:
The production and release of thyroid hormones, thyroxine and triiodothyronine, is controlled by a feedback loop system that involves the hypothalamus in the brain and the pituitary and thyroid glands. ... This system allows the body to maintain a constant level of thyroid hormones in the body.
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The process of obtaining food by __________________ is called phagocytosis.
The interactions between the red blood cell and important molecules, cells, and organs
Answer:
Other answer is correct i didn't pay attention in this class
Explanation:
What is the body’s central command organ
Answer:
. The brain is the command center for your body
Explanation:
The yellow beams in the model represent equal amounts of radiation coming from the Sun. Based on the information shown in the model, which two statements are true?
Answer:
B. All parts of the Earth's surface get the sunlight atbthe assume angle and of the same intensity
C. The regions near the poles get the most-intense and most-direct sunlight
Note: Then model and options are found innthe attachment below.
Explanation:
Latitude is the distance north or south of the Equator. It’s measured in degrees, from 0° to 90°. The amount of sunlight received and hence, the temperature of a place varies with latitude. The higher the latitude of a place or region, the lower the temperature of that region or place will be.
The elliptical shape of the earth contributes to how the heat from the Sun is received by a place. At the Equator, the Sun’s rays are most direct and intense, hence, the temperature of regions around the equator is highest.
At higher latitudes which have more curved surfaces, the Sun’s rays are less direct. Thus, the temperature of a place decreases with increase in latitude due to the less-direct heating by the Sun.
At the poles, the Sun’s rays are least-direct and least-intense. Temperature is lowest at the poles. That is why polar regions are covered with ice.
From the model and the options given, options A and D are correct while options B and C are false.
What does "dismiss" mean in these sentence
Answer:
to send away
Explanation:
hope this helps
Answer:
to send away
Explanation:
i got that correct.
5. The theory of common descent states that all modern organisms
*
A. Can change in response to environmental change
B. Are descended from a single ancestral species
C. Can be arranged in a linear order from "Least Evolved" to “Most Evolved”
D. Have not changed over time
Answer:
B
Explanation:
All living beings are in fact descendants of a unique ancestor commonly referred to as the last universal common ancestor (LUCA) of all life on Earth, according to modern evolutionary biology. Common descent is an effect of speciation, in which multiple species derive from a single ancestral population.
two cause and use of modification of root
Answer:Modified roots may perform functions such as support, respiration, and storage. ... Conical, fusiform, napiform are tap root modification for the purpose of storage. Prop root ,stilt root are produced not from the radicle assimilatory roots are aerial roots that are photosynthetic.
Explanation:hope this helps.
During meiosis, which of the following allows for variations in alleles in the gametes
formed?
A) homologous chromosomes stay together
B)chromosome crossover
C)daughter cells identical to parent cells
D)Genetic drift
Answer:
D. I'm pretty sure at least
Compare the results of the Unknown Explain the identity of the Unknown using your experimental results in the exercises to help explain and support your answer.
Question
The question is incomplete. The complete question is as follows:
Review the Data Tables in Exercises 1 and 2. Compare the results of the Unknown for all tests to the results for the various known samples to determine the identity of the Unknown. Explain the identity of the Unknown using your experiment results in the exercises to help explain and support your answer.
Answer:
According to the results, the unknown is a protein.
Explanation:
According to the results, the unknown is a protein, not a carbohydrate or lipid. When Biuret's reagent test is performed, it tested positive while the tests for sugar, starch, and lipid were negative proving that the unknown substance is the protien.
(2 pts) Describe the process in which an ecosystem moves from a pioneer species to a climax community.
Answer:
As an ecological community develops, it goes through a series of stages called ecological succession. The enduring community, in which specific and environmental changes are minimized, is called the climax community.
Explanation:
Succession is a process that generally begins after a significant alteration or extinction of an existing community. During succession, a community begins from a point where pioneer species colonize a new area. Pioneer species actively work to provide nutrients to soils and thus allow life to begin to form in them.During this time, there is widespread growth of these fast-growing species. If this new development is in an area that has never been settled before, this is called primary succession. If colonization occurs where an area has been so severely disturbed that the original community no longer exists, this is called secondary succession. Primary succession begins with the establishment of pioneer species such as lichens and mosses. These change the physico-chemical characteristics of the substrate. Later, small plants such as grasses, shrubs and then trees arrive, until culminating in a climax community dominated by certain species. The equilibrium that characterizes the climax community can be altered by climatic, ecological and evolutionary factors.
......................................................peridot
Answer:
It's C. They are mostly made up of hydrogen and helium
What is the largest object known to man and why?
Answer:
1234567890
Explanation:
because I said so 12345678901234567890
PLS HELP
Explain the flaw in Bill's rationale in the following scenario:
Bill, a horse breeder, believes that studying heritability is a waste of time. He thinks that kind of technical study should be left to scientists, not farmers.
He could use this knowledge to help breed his horses to the best that they can be.
What is heritability ?The degree to which genetic variations among persons may adequately explain the variations in their attributes is known as heritability. Characteristics like height, eye color, and IQ are examples of traits, as are illnesses like schizophrenia and autism spectrum disorder.
Heritability, which is denoted by the statistic h2 in science, describes the proportion of a trait's variation that can be attributable to genetic variation.
An estimation of a trait's heritability is particular to one population in a particular setting, and it might alter over time as conditions change.
Estimates of heritability range from 0 to 1. A heritability close to zero means that environmental factors, with very little influence from genetics, account for almost all of the variation in a trait among individuals.
Therefore, He could use this knowledge to help breed his horses to the best that they can be.
To learn more about heritability, refer to the link:
https://brainly.com/question/21422122
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Fungi live off of dead matter. Often, when you see a pile of dead leaves in a wetter climate, there will be many fungi there feasting on those leaves. Fungi recycle materials by eating them, and then, in turn, being eaten by other organisms. What title best describes a fungus?
producer
consumer
decomposer
?
Answer:
Decomposer.
Explanation:
The answer is decomposer because decomposers often eat dead things which make the dead things decompose.
Answer:
decomposer, fungi help clean up but also are a food for other animals
All the animals can be classified into three groups ____,_____,______on the basis of
their food habits.
Answer:
Herbivores, Carnivores, Omnivores
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All the animals can be classified into three groups omnivorous, carnivorous and herbivores on the basis of their food habits.
If a thin haired woman (bb) has a child with a full haired man (B-), then what is the chance each of their girls will have thin hair?
Answer: 50%
Explanation:
for what resons do cells divide
Answer:
Cells divide to replace old, dead, or damaged cells. Cells also divide so living things can grow.
Explanation:
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