Answer:
Appendicular skeleton
Explanation:
The carpals are bones that make up part of the hand, so the Appendicular system would be an appropriate answer. The Appendicular system got its name because it is the appendages of the axial skeleton. Your hand (as well as your arms , legs, pelvic girdle, feet,etc.) is considered your appendage so it would make sense for the bones that allow your wrist to move and rotate are considered it as well.
Answer:
appendicular skeleton
Explanation:
The carpals are bones that make up part of the hand.The appendicular skeleton is the portion of the skeleton of vertebrates consisting of the bones that support the appendages. The appendicular skeleton includes the skeletal elements within the limbs, as well as supporting shoulder girdle pectoral and pelvic girdle.
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A change in body temperature will have which of the following effects on enzymes in the body?
O A change in the ability of some enzymes to bind with their coenzymes
A change in the ability of some enzymes to bind with their substrate
A reduction in the concentration of some enzymes in the body
An increase in the concentration of some enzymes in the body
Answer:
A reduction in the concentration of some enzymes in the body
Explanation:
As temperature is increased the enzymes and substrate gain kinetic energy (move more quickly). This increases the frequency of collisions and the formation of enzyme-substrate complexes. Therefore as the temperature is increased the enzyme activity and the rate of reaction increases.
Increases in temperature increase molecular activity, and can result in a higher rate of collisions between enzymes and substrates. If the temperature rises too high, however, the enzymes could become denatured, and the positive effects of the temperature increase could be nullified.
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The number of different species living in a given area describes (2 points)
a habitat
species diversity
genetic diversity
Answer:
Species diversity
Explanation:
If there are many types of different species, that means there is species diversity. the key word is species
Which best describes the relationship between evolution and natural selection?
-Natural selection leads to evolution.
-Evolution leads to natural selection.
-Natural selection is the same as evolution.
-Evolution and natural selection are not related.
Answer:
Natural selection leads to evolution.
Explanation:
Natural selection is a process where organism that are better adapted to an environment will survive and reproduce. This means that the advantageous alleles of this variants organism are passed on to offspring. Over many generations, the process of natural selection leads to evolution occurring.Answer: A. Natural selection leads to Evolution
Marcus is admitted to the hospital for a bone marrow stem cell transplant from his brother. What will happen after his brother’s stem cells are transplanted into Marcus? A. The stem cells will divide through meiosis to create haploid stem cells. B. The stem cells will divide through mitosis to create diploid stem cells. C. The stem cells will divide through meiosis to create diploid stem cells. D. The stem cells will divide through mitosis to create four haploid daughter cells. Reset Next
Answer:
The stem cells will divide through mitosis to create diploid stem cells.
Explanation:
PLATO test
5. An industrialized society views Earth mainly
as a
1 home for wildlife
2 hazardous place to live
3 source of natural resources
4 barren landscape
A. The plot would have the same shape as the glucose plot, but would be shifted to the right slightly.
B. The plot would consist of a continuous straight line with a very shallow slope.
C. The plot would have the same shape as the glucose plot, but would be shifted to the left slightly.
D. The plot would have the same shape, but inversely related, so that as glucose goes up, insulin goes down, and vice versa.
Which statement is true about the CO2 cycle? Reservoirs add more carbon dioxide to the environment than they remove. Carbon dioxide travels through the environment in a single direction. Carbon dioxide is constantly moving throughout the environment. When carbon dioxide enters a reservoir, it no longer cycles.
Answer:
Carbon dioxide is constantly moving throughout the environment.
Explanation:
The True statement about CO₂ cycle is ; Carbon dioxide is constantly moving throughout the environment ( C )
The CO₂ cycle is the process involving the addition and removal of carbon dioxide from the atmosphere and it involves several process like cellular respiration, photosynthesis and Burning of fossil fuels.
This cycle is a continuous process because carbon continues to move in and out of the atmosphere as long as respiration, photosynthesis and burning of fossil fuels remains a continuous process.
Hence we can conclude that The True statement about CO₂ cycle is ; Carbon dioxide is constantly moving throughout the environment.
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What type of selection favors the average individuals in a population
Answer:
natural selection
Explanation:
Check all statements below that are true.
All organisms must compete for survival.
When organisms struggle to survive, they usually mutate to increase chances of reproduction.
Some organisms have phenotypes that make them better competitors than others in their
environment
Animals undergo natural selection, but plants and other organisms generally do not
Natural selection continues to occur even today.
Phenotypes found in the most successful members of a species become the most prevalent after
several generations.
A decrease in food availability will increase the variation in a population.
Answer:
1,3,5,6
Explanation:
An ecological numbers pyramid illustrates population sizes within an ecosystem. Based on the pyramid, which type of organism would be least abundant in most ecosystems?
Answer:
The tertiary consumers.
Explanation:
The tertiary consumers will be the least available in the ecosystem.
Explain how selective breeding is done. Describe how this helps farmers to increase crop and poultry production.
Answer:
Selective breeding is when a human or farmer in this case selects two plants or chickens with the best traits in order to get a good yield and quality for the products they are producing. I hope this helps!
How might disease be responsible for the rise in buffalo population that our investigation is centered on
Answer:
Suppose that the buffalo has a natural predator A.
Now, if there is new disease introduced, that particularlly atacks the natural predator A of the buffalo, we may be in a situtation where the percentage of the buffalo population that was predated by A is decreased (as we have a smaller number of predators A that are active). This means that we have more live buffalos, and as most biological organism, the growth of population is exponential. So having more buffalos today, means that in some months we will have plenty more of them, and this is why a disease can conclude in a rise in the population of some species.
A botanist has discovered a new plant species and is trying to classify the plant. Its seed has one cotyledon, it has six flower
parts, its leaves have parallel veins, its stem is herbaceous, and the vascular bundles in its stem are scattered throughout the
stem. Which best classifies this plant?
O gymnosperm and dicot
O gymnosperm and monocot
O angiosperm and monocot
O angiosperm and dicot
Answer:
it's Angiosperm and Monocot. or C. on edge
Explanation:
R-selected species have a short life span and an early reproduction cycle.
Please select the best answer from the choices provided
T
F
Answer:
T is the best choice provided above
Answer:
True
Explanation:
Which term describes the uneven way that glass breaks? cleavage luster fracture hardness
Answer:
the term that best describes the uneven way that glass breaks is cleavage
Explanation:
Because in defining cleavage scientifically is the splitting of rocks or crystals in a preferred plane or direction.
Answer:
the term that best describes the uneven way that glass breaks is cleavage
Explanation:
Because in defining cleavage scientifically is the splitting of rocks or crystals in a preferred plane or direction.
Which organisms convert nitrogen into a form that is usable by humans?
A. Omnivores
B. Algae
C. Bacteria
D. Plants
A student viewing a cell with a microscope observes a cell wall, a cell membrane, and a nucleus. The presence of these structures indicates that the student is looking at a cell from a
the answer should be a plant cell due to the occurence of all of those things being in plant cells
If you lined up TMV ( tobacco mosaic virus) particles end to end, how many would fit along the length of the same paperclip? the paperclip is a length of 3.0 cm.
Answer:
100,000 TMV
Explanation:
Length of one TMV is 300nm. Length of paper clip is 3.0cm. First step is to convert either value to match the units of other.
So 3.0cm to nm is 3.0 * 10^7 = 30,000,000nm
SO now it becomes simple because we just divide the total length by length of TMV to find number of particles that can fit:
30,000,000/300 = 100,000 TMV
Directions: Read the descriptions of the four islands presented in the lesson. 1. List two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. Introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.
Answers:
1. Adaptations to survive in specific island conditions:
Morphological adaptations for eating food resources from a specific island. For example, a mandibular structure adapted to eat the food that they obtain.
Behavioral adaptations to avoid depredators. For example, diurnal habits because predators have nocturnal habits.
Physiological adaptations to survive in specific conditions. For example, a lower metabolic rate if food resources are limited.
Stress-induced adaptations to survive in specific stressful conditions. For example, reduction in transpiration is a stress-induced adaptation that enables to rat survive if water resources are limited.
2. Example: Introduction of the rat with diurnal habits in the island with predators that has the same habits is a challenge to survive in this new environment. In this case, the rat can develop different strategies to avoid predators: specific sounds to alert other members of the population on the presence of predators, an immobile pose to simulate death, etc.
Scientists often ask questions to clarify data or guide scientific research. What are two scientific questions you have that could clarify relationships about the DNA or traits of these orchids?
Answer:
Plato
Explanation:
What traits would orchids have if the MADS-box genes were not duplicated?
If a genetic mutation changed the shape of the flowers, would pollinators still be attracted to orchids?
The two scientific questions that should have been asked about the DNA or traits of these orchids are:
1. What generations are these orchids?
2. What is the meaning of DNA?
What are scientific questions?A scientific question is one that can be answered and put to the test and explains a specific component of a larger investigation into nature. It is written in a way that responds to a scientific investigation.
An additional question cannot be appended to a scientific inquiry because it is too broad or complex. Instead, it looks for a solution to a specific facet of a more general topic.
The question can be resolved using conventional scientific methods. It should also be possible to duplicate it using the tools and procedures described in any international standard laboratory.
Therefore, the scientific questions are
1. What generations are these orchids?
2. What is the meaning of DNA?
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Which succession occurs in a community that was never colonized before? A. secondary B. artificial C. temporary D.primary
Answer:
Primary
Ecological succession is the process in which a community changes through time. Primary succession occurs in an area that has never before been colonized.
Explanation:
Answer: primary
Explanation:
what structure in the female reproductive system produces eggs
Answer:
ovaries
Explanation:
Daily changes in the elevation of the ocean surface are called _____. density currents waves tides
Answer: tides
Explanation:
Answer:
tides are flooded river vally .are daily changes ocean suface
Answer :tides
The mantle is always solid. True or false?
Answer:
It is predominantly solid but in geological time it behaved as a viscous fluid.
Explanation:
Answer:
true (more info below)
Explanation:
a mantle is a layer of hot, solid material between Earth's crust and core.
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Describe the relationship between temperature, rainfall, and the type of forest
Answer: The more rainfall, the bigger the tree, so that creates a rainfall
Explanation:
1. Trees influenced the temperature by soaking heat and having “refrigeration”, thus cooling local climates.
2. Soils also soaked more moisture than non-forest soils, more water for catchments and allowing trees to produce this moisture in the atmosphere.
How do temperature and rainfall affect the distribution of biomes?Biomes are determined largely by temperature and rainfall, biomes at higher latitudes ) are cooler and drier.
Nearer to the equator, biomes are generally warmer and wetter, as warmer air holds more moisture than colder air.
Thus, temperature, rainfall, and the type of forest are interconnected.
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All the populations of different organisms living in the same area make up a _
A.niche
B.ecosystem
C.community
D.habitat
Answer:
B. Ecosystem
Explanation:
Mark is a biologist. He believes that the consistent consumption of limited planetary resources in pursuit of an improved quality of life is a flawed model. Why is the model flawed?
Answer:
The model is flawed because, improved quality of life should mean living sustainably. The quality of life is not improving if the LIMITED resources which sustain life are being enervated.
Besides, improvement in life is a relative term.
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is a worm a unicellular organism?
Answer:
no it is a multicellular organism
Explanation:
Answer:
it is a multicellular organism
Explanation:
it has many cells that build up their organs
Two peeled large carrot pieces are placed in beakers one containing water and the other containing sugar solution. The carrot pieces are observed after 8 hours. Now answer the following
a) What is the difference in the physical state of carrots is observed in two beakers?
b) Name the process involved in changing the shape of carrots.
c) Why was the above process occurred?
d) Name the type of solution in beaker 1 and the type of solution in beaker 2
e) Name a process in your daily life which works on the same principle.
Answer:
a)Difference in physical state observed:
The difference between the two carrots is that the carrot in the plain water appears bigger or slightly swollen while the carrot in the salt water appears smaller and has shrank in length and slightly in width.
b)Process involved that has caused the changes:
The process that has taken place is osmosis.
c)Why has the process occured:
The process occurs due to the semi-permeable membrane of the cells of carrots that allow water either in or out of the cells.
In the plain water, the process that takes place is endosmosis where the cells of the carrot draw in water and hence the carrot increases in mass. The carrot in the salt water, on the other hand, experiences exosmosis, where water is drawn from the carrot's cells and the carrot becomes dehydrated and shrinks in length and width.
d) Beaker 1 : Water
Beaker 2 : Sugar Solution
e) example of endosmosis is absorption of capillary water from the soil by the root.
another example of endosmosis is is entrance of water in the xylem vessel from the soil by the root.
Which of the following statements is true about the oxygen revolution
Answer:
The oxygen revolution happened about 2.5 billion years ago. ... Then oxygen started to accumulate in the atmosphere. Oxygen is toxic to anaerobic organisms and this increase in atmospheric oxygen killed much of the life that had evolved to this point generating a huge mass extinction.
Explanation:
