Explanation:
9 The center of the atom is called the nucleus. Electrons are found in areas called shells. A shell is sometimes called an energy leve
12. 6
13. The atomic mass of an element is the average mass of the atoms of an element measured in atomic mass unit (amu, also known as daltons, D).
14.Elements are arranged from left to right and top to bottom in order of increasing atomic number.
15.The vertical columns on the periodic table are called groups or families because of their similar chemical behavior. A
10.Of these 118 elements, 94 occur naturally on Earth. Six of these occur in extreme trace quantities: technetium, atomic number 43; promethium, number 61; astatine, number 85; francium, number 87; neptunium, number 93; and plutonium, number 94.
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Answer: A. Codominance is a blending of the two traits, and incomplete dominance expresses both traits equally.
Explanation: Good luck! :D
Answer:
A is correct
Explanation:
when a plant is in area of light, which of the following will happen?
Answer:
Your answer is B
Explanation:
Plants need light in order to survive. Natural sunlight allows plants to grow leaves, flower, produce chlorophyll, and more.
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Also here's the answer to your other question. I linked a screenshot of the problem :)
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Answer:
B. The plant will slowly die because it cannot photosynthesize.
Explanation:
Because when they don't have light, they can't get the nutrients from the light they need to survive.
Does the distance from earth to sun determine the seasons? please explain
Answer:
nope
Explanation:
Contrary to popular belief, the seasons are not determined by the earth's distance from the sun. The seasons are actually caused by the earth's tilted axis. Because the axis is tilted, when the Northern Hemisphere is tilted towards the sun, it's warm.
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Some fungi and insects benefit each other; the fungi protects the insects from predators and the insects spread spores for the fungi. This is an example of a _______ relationship.
Some fungi and insects benefit each other; the fungi protect the insects from predators and the insects spread spores for the fungi. This is an example of a mutualistic relationship.
What is a Mutualistic relationship?A mutualistic relationship may be defined as a +,+ type of interaction in which both species benefit from the existence of each other. Example includes lichens, mycorrhizae association, coral reefs, etc.
In the question, the Fungi protect the insects from predators and benefit the insects to get survivability, while in return insects spread spores for the fungi and assist them in their reproduction process.
Therefore, both insects and fungi undergo a mutualistic type of relationship through which both species benefit from the existence of each other.
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whats the structure of pons
Answer:
A pons structure is a bulbous shape and has two main components - the basis pontis (aka basal/ventral part) and the pontine tegmentum (aka dorsal part). In Psychology the pons is the structure of the brain the acts like the "bridge"(Latin ) for the midbrain and medulla.
Explanation:
Hope that helps
WIll MARK BRAINLIST PLZZ HELPN DUE IN 20 min Which are the two ways that scientists investigate the impact of limiting factors on a population? (Choose 2)
Group of answer choices
researching climate change
scientific experiments
learning about molecular bonds
observational studies
Story #1
Once upon a time, there lived a population of mountain people whose members all had wings but different
types-either bat wings or bird wings. 40% of the population had bat wings and 60% of the population had bird
wings. One day, a storm hit that lasted for several weeks. Those with bat wings were able to fly around and
find food because their wings were water resistant, while those with bird wings were not able to get food
because their feathers were not water resistant and got soaked through. Many of the bird-winged people starved
and did not survive, so their alleles decreased in the gene pool, lowering the frequency of the bird wings in
future generations. Over many generations, the environment had more and more long periods of rain and the
genetic makeup of the population shifted to 10% with bird wings and 90% with bat wings.
What is the trait being described?
What are the variations that exist in this population?
3. How did the event lead to the change in allele frequency?
Alleles?
4. What type of evolutionary mechanism did this story show?
5. Was there an adaptation in this story? If so, identify it.
6. Did the change make the population more or less similar to other populations?
7. Would this increase or decrease reproductive isolation?
Increase or decrease speciation?
8. Did the new population change for the better, worse, or have no effect? Why?
Answer:
The trait being described is the ability to fly in rainy season.
Explanation:
The trait being described is the ability to fly in rainy season. The people with bat wings and people with bird wings are present in the population. The event lead to the change in allele frequency because the population of people with bird wings die due to starvation. Yes, the bat wings were adapted to that environment so they are able to survive. The change make the population less similar to other populations because population of people with bat wings increases as compared to other population. Yes, the new population change for the better of the ecosystem because the population is able to controls the population of other species in the ecosystem.
This process removes hunks of DNA and replaces them with new ones to help people
Answer:
Gene editing
Explanation:
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Which of the following statements are true regarding cellular reproduction? Select all that apply.
When an organism grows, cellular reproduction creates new cells.
Organisms reproduce, so new cells are needed.
If cells become damaged, cellular reproduction can repair damaged cells.
Cellular reproduction helps organisms acquire water better, as there are more cells present.
Cellular reproduction is the exchange of homologous chromosome segments.
Answer: Replacing dead cells
what are the different cellular organelles
Answer:
Plasma membrane, nucleus, ribosomes, mitochondria
Explanation:
What is the function of the leaves of a plant?
A: to absorb food
B: to absorb light
C: to produce seeds
D:to produce flowers
How easy was it to sort finches by song?
Long chain of _________________ that surrounds the Pacific Ocean.
Answer:
Circum-Pacific belt
Explanation:
it is the belt that goes around the Pacific Ocean longest
What type of evolutionary mechanism did this story show?
Allele frequencies in a population may change due to four fundamental forces of evolution: Natural Selection, Genetic Drift, Mutations and Gene Flow. Mutations are the ultimate source of new alleles in a gene pool. Two of the most relevant mechanisms of evolutionary change are: Natural Selection and Genetic Drift.
This story showed an example of convergent evolution. Convergent evolution is the process whereby organisms that are not closely related independently evolve similar traits as a result of having to adapt to similar environments or ecological niches.
What is in the story ?In this story, the two species of birds, the crows and the jays, evolved to look similar as a result of living in the same environment and competing for the same resources.
The two species evolved to look similar in order to blend in with their environment, making it difficult for predators to distinguish them from one another. This allowed them to survive and thrive in the same environment.
Therefore, This example of convergent evolution is a perfect example of how species can evolve to look similar in order to survive in the same environment. It also shows how competition for resources can drive species to evolve similar traits in order to survive.
Learn more about convergent evolution at:
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5. the kingdom of prokaryotic unicellular organisms known for living in
environments in which all other organisms are unable to survive in *
Eubacteria
Archaea
Fungi
prokaryote
Answer:
The answer is in the explanation bellow
Explanation:
Archaea. The Archaea Kingdom is a relatively new prokaryotic kingdom, and its organisms differ from the eubacteria because of the environment in which they live.
Plant cells have some organelles that animal cells do not. Check all organelles that ONLY plant cells have.
A
chloroplast
B
nucleus
C
cell membrane
D
cytoplasm
E
cell wall
F
mitochondria
Answer: Plant cells only have chloroplast and a cell wall. Which is A and E.
Measurement of overall change in position.
Answer:
Velocity (Rate of change of position)Velocity is a vector quantity that is defined as the rate of change of position of an object with respect to a frame of reference with respect to time. Velocity is equivalent to the speed of the object along with the direction of motion.Hope this is fine for youAnswer:Displacement
Explanation:Displacement is the change in position of an object. The SI unit for displacement is the meter. Displacement has direction as well as magnitude. Distance traveled is the total length of the path traveled between two positions.
Many fungi play a critical environmental role as _______, breaking down organic material into nutrients for the soil and other organisms.
Explain the difference between homology and analogy using a wolf, a whale, and a shark:
Answer:
Explanation:
Analogy refers to traits or structures like body shapes, fins which evolved independently that are similar in organisms that are not related by the same common ancestor. For example dolphins and shark have similar body structures like fins but they are unrelated. Whale and shark too. Whales are mammals, sharks are fish.
Homology refers to traits or structures
posses by organisms that are related by common ancestors. Example wolf and whales.....they are both mammals.
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Which characteristics are common to most salamanders? Check all that apply.
They undergo internal fertilization.
They lose their tails as adults.
They have wet, moist skin.
They have long, strong legs.
They begin life with gills.
Answer:
c, d, and a
Explanation:
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Answer:
They undergo internal fertilization; they have wet, moist skin; they begin life with gills
Explanation:
At which latitudes do we find Earth's major deserts?
Answer: Around 30-50 degrees of latitude. This is roughly right above and below the equator.
Panda populations are adapted to live in which kind of habitat?
O cherry forests
O ginkgo forests
bamboo forests
rain forest
Answer:
bamboo forests
Explanation:
Since bamboo forest is the most suitable habitat for a panda to spend their life. They need cool, wet bamboo forests for their home.
hope it helps!
Answer:
Its (C) (bamboo forests)
Explanation:
Hope this helps
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Which of the following organisms lived during the Paleozoic Era?
A) dinosaurs
B) flowering plants
C) grasses
D) trilobites
D. Trilobites
Trilobites made their entrance onto the Earth's stage during the late Cambrian Period. This is the first and oldest division of the Paleozoic Era.
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How could an asteroid impact have led to the extinction of dinosaurs?
Answer:
The asteroid crashed into the earth and made some water bodies violent
it is said that the asteroid was super huge and was capable of causing volcanoes, tsunamis, etc which took place all over the earth and extincted dinosours. But it is a little surprising that crocodiles who were also found at that time survived all this
Answer:
Probably the asteroid caused natural calamities
Combustion is another word for?
A.Transportation
B.Respiration
C.Burning
D.Fossil Fuels
More than 90% of measles infections occurs in children under ____ years old.
Answer: More than 90% of measles infections occurs in children under 15 years old.
Hope this helps
Is Earth always the same distance from the
Sun? Explain.
Answer:
No
Explanation:
The earth travels in an ellipse, an ellipse is a flattened circle, and the sun is closer to one end of that ellipse and far in another end. That said the Earth is not the same distance as the sun
why is the sun so warm
Answer:
cause it supa dig and it's rays be supa hot. ya feel meh
Explanation:
The light radiated by our sun is transformed into heat energy once it reaches a surface. Even though the sun is nearly 92 million miles away from the earth, it's light still reaches us and has it's light transformed into heat.
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Many freshwater plants have adapted to low carbon and light levels by adapting what feature?
Group of answer choices
Carnivorous plants
No need for carbon dioxide
Camouflage
Floating leaves
Answer:
The most common adaptation is the presence of lightweight internal packing cells, aerenchyma, but floating leaves and finely dissected leaves are also common. Aquatic plants can only grow in water or in soil that is frequently saturated with water. They are therefore a common component of wetlands.
What are the effects of enzymes on chemical reactions? Select all of the answers that apply.
A. Enzymes increase the heat of reaction.
B. Enzymes decrease the activation energy.
C. Enzymes increase the rate of the reaction.
D. Enzymes change the ideal pH for a reaction to proceed.
E. Enzymes provide a site where reactants can be brought together.