Answer:
Explanation:
A: Rocky crust
B: Mohorovicic
C: outer mantel
D: inner mantel
E: Gutenbem
F :outer core
G :inner core
What are the 4 steps of mitosis? What occurs during each?
Explanation:
There are four stages of mitosis: prophase, metaphase, anaphase and telophase.1) Prophase: chromatin into chromosomes, the nuclear envelope break down, chromosomes attach to spindle fibres by their centromeres 2) Metaphase: chromosomes line up along the metaphase plate (centre of the cell) 3) Anaphase: sister chromatids are pulled to opposite poles of the cell 4) Telophase: nuclear envelope reforms, chromosomes unfold into chromatin, cytokinesis can begin The order of the stages of mitosis can be remembered using the mnemonic PMAT.
8. What adaptation helps desert plants keep animals away?
Answer:
Well there are pr ick les, and some may have other adaptations
Explanation:
A probability of 1/4 is equal to a probability of 75%
True or False
Label the items on the picture by dragging to correct answer to the correct letter below the picture.
A=
B=
C=
D=
E=
F=
G=
Answer:
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.
Explanation:
You have come across a website with the following
address: http://www.epa.gov. What does the ".gov"
in this Internet address mean?
A. The site can be accessed only by
government officials.
B. The content is political in nature.
C. The content is current.
D. The site is hosted by a government agency.
In a certain ecosystem, there is a large number of rabbits which graze upon grass. Rabbits are herbivores, which means they only eat plant material. Later, a population of wolves is introduced into this ecosystem. Wolves are carnivores, which means they only eat meat.
How will the introduction of wolves into this ecosystem affect the other organisms?
A.
The change will be helpful to the rabbits and the grass.
B.
The change will be harmful to the rabbits but helpful to the grass.
C.
The change will be helpful to the rabbits but harmful to the grass.
D.
The change will be harmful to the rabbits and the grass.
Answer:
b
Explanation:
Based on the living things in the pyramid, please tell me what examples would fit into these categories:
Primary Producers, primary consumers, secondary consumers, and tertiary consumers.
Answer:
Primary producer = Oak tree leaves
Primary consumer = Caterpillars
Secondary consumer = Blue j a y s
Tertiary consumers = Hawk
Explanation:
An energy pyramid is a graph which shows how energy is transferred or flows from one trophic level to the next. Organisms which occupy the same level in the food chain within an ecosystem belong to the same trophic level.
The shape of an an energy pyramid is a pyramid indicating that the number of living things as well as the amount of energy flow decreases as one goes from one lower trophic level to the next higher level.
At the base of the pyramid are the primary producers which use energy of the sunlight to manufacture their own food. Example is the Oak tree.
The next higher level is the primary consumers who feed directly on the primary producers. For example caterpillars.
The next higher level is the secondary consumers who feed on the primary consumers. For example the Blue j a y s.
The highest levelin the pyramid is the tertiary consumers who feed on the secondary consumers. For example, the hawk.
A tomato plant in a greenhouse was found to be
infected with tobacco mosaic virus. A few weeks
later, nearby plants were also found to be infected
with the virus.
Which of the following best describes how the
virus reproduced?
A The virus made its own spores.
B The virus produced seeds in the tomatoes.
C The virus used the host plant's resources and
machinery to reproduce.
D The virus immediately killed the host plant and
was free to reproduce.
Answer:
C. The virus used the host plant's resources and
machinery to reproduce.
Explanation:
Which of the following organisms cannot create their own food?
O Plants such as grasses
O Protists such as algae
O Animals such as humans
O Plants such as trees
Answer:
animals such as humans
Explanation:
Answer:
animals such as humans
Explanation:
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_____ occurs when a species is not able to adapt to changing environmental conditions, not able to successfully reproduce, and dies out.
Explanation:
Extinction occurs when a species is not able to adapt to changing environmental conditions,not able to successfully reproduce and dies out.
HELP!!! WILL GIVE BRAINLIEST!!!
Which of the following is an enample of thigmotropism?
Plant growing toward water
Plant turning away from light
Plant growing up a fence
Answer:
Thigmotropism is a plant turning away from something that it touches so i the its the second one
Explanation:
since it says the light is touching the flower and its trying to get away from i would say the second one
You want to know if the temperature of water affects how quickly a cube of
sugar will dissolve, or seem to disappear, into the water. In a controlled
experiment, what would be the responding (dependent), variable?
O The time it takes for the sugar cube to dissolve in water
O The amount of water
O The size of the sugar cube
The temperature of the water
Answer:
The time it takes for the sugar cube to dissolve in water
Explanation:
A mutation in a gene results in an animal that cannot make a protein that allows muscles to contract which of these is most likely to happen
Answer:
it will get weaker give water
Explanation:
feed it bread
A heritable change in a person's genetic makeup is referred to as a mutation. Changes can be substantial or negligible. Chromosomes or chromosome parts may be lost, added, duplicated, or rearranged in significant alterations. Thus, option B is correct.
What mutation in a gene results in an animal?High-energy sources like radiation or chemicals in the environment can both result in mutations. They may also emerge on their own during DNA replication. The two main kinds of mutations are chromosomal abnormalities and point mutations.
Mutations can alter an organism's phenotype, which is its outward appearance, or they can have an impact on the way DNA encodes the genetic information (genotype). When mutations happen, they might kill an organism completely or only partially.
The likelihood that a gene mutation will cause an animal to be unable to produce the protein necessary for muscles to contract is that the animal will perish before producing any progeny.
Therefore, The animal will die before having any offspring.
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The above given question is incomplete. The complete question is given below:
A mutation in a gene results in an animal that cannot make a protein that allows muscles to contract. Which of these is most likely to happen? * A. The gene will eventually be found in all animals of the species. B. The animal will die before having any offspring. C. The gene will change back to the normal form. D. The animal will pass this gene on to many offspring.
please help me in biology! I will give brainliest.
Answer:
1. logistic population growth
2. 72
3. week 2 and weeks 4 - 10
4. 2.78%
5. 12
59:14 Organisms that live in the tundra have developed unique adaptations that aid in their survival. Ursus maritimus has a variety of adaptations which enable it to survive in the tundra. It is the largest terrestrial carnivore, but it is also an excellent swimmer that spends much of its time in and near the water hunting its favorite food. It has large paws with small bumps to provide traction as it walks across the ice. Its fur is helpful as camouflage during the winter months, but not as helpful during the summer. Which organism has the adaptations described that enable it to survive in the tundra
Answer:
Polar bear.
Explanation:
Polar bear is the organism that has the adaptations which enable it to survive in the tundra. the polar bear has white skin and fur on all its body which helps it to camouflage in the ice and to prevent the loss of heat from its body. The polar bear catch its favourite food in the water which is the fish that provide high nutrition to the polar bear. It is a good swimmer and have large paws with small bumps that helps it to provide support while walking on the ice. The scientific name of polar bear is Ursus maritimus whose features are described in the question.
Você sabe de onde vem á água da sua casa?
Answer:
No se compa
Explanation:
no se compa no seconpa
Which property of lights helps in the formation of shadows
:
The reflection and rectilinear propagation of light helps in the formation of shadows. The property that light neither can pass through an opaque object nor can bend to a large extent by itself leads to shadow formation.
Explanation:
#Hope_it_helps
i'm working on a lab report on water erosion on edg lol
pls help i'm so behind
is it okay??
Some facts about Water erosion :
Water erosion is the detachment and removal of soil material by water. The process may be natural or accelerated by human activity. ... Water erosion wears away the earth's surface. Sheet erosion is the more-or-less uniform removal of soil from the surface.
Water and Wind Erosion (cause)
Water erosion is the removal of soil by water and transportation of the eroded materials away from the point of removal. Water action due to rain erodes the soil and causes activities like gully, rill, and stream erosion leading to the downstream effects of flooding and sedimentation.
Which is the BEST example of a community responding to an external factor?
Drag the structures to the appropriate boxes in order that oxygen would travel from the outside of your body to the blood stream
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
Answer:
trachea, pharynx, aveoli, bronchioles
Explanation:
What is adaptation? What are the two types of adaptation? Give an example each.
Answer:
adapting can be learning from your environment and ways to survive etc.
Adapting can also go to sexual reproduction to survive diseases unlike asexual reproduction.
An adaptation is a trait which increases the relative fitness of an individual. The fitness of an individual has 3 components: 1. Probability of survival to reproductive age. 2. Probability of attracting a mate. 3. Average number of offspring. Any trait which increases the fitness of an individual by positively impacting one of these three aspects is considered an adaptation.
There are 2 types of adaptation: physical and behavioral. These are self-explanatory. Physical adaptations could include things like adaptations to morphology or physiology of an organism. Behavioral adaptations are adaptations to, well . . . behavior :)
a key feature of enzymes is that they _____.
a. interact generally within cells
b. are changed by reactions
c. are carbohydrates
d. are not used up in reactions
e. force reactions to occur
Answer:
d. Are not used up in reactions
Explanation:
This is a property of enzymes. They are not used up since they don't participate in reactions. They just help increase the rate at which it occurs
A key feature of enzymes is that they force reactions to occur. Thus, the correct option for this question is E.
What are Enzymes?Enzymes may be defined as biocatalysts that increase the rate of a chemical reaction without being changed in the overall process. It may be thought that all sorts of cellular reactions or processes are mediated by enzymes.
Most of the enzymes are proteins. They are highly specific in nature. Enzymes also exhibit enormous catalytic power. They do not alter the equilibrium state of biochemical reactions.
Enzymes typically speed up the rate of a chemical reaction by lowering the activation energy of a particular reaction. Thus, it leads to the conversion of reactants into products at a faster rate.
Therefore, a key feature of enzymes is that they force reactions to occur. Thus, the correct option for this question is E.
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A man lifts weights and exercises until he is very muscular. He works out
with the hope that his children will also be very strong. A problem with his
idea is that:
characteristics that are acquired during one's lifetime cannot be passed on to
offspring
not all offspring want these new characteristics
these characteristics may make the offspring less likely to survive
offspring are born weak
Answer:
This man hasn't been taught genetics.
Explanation:
That's not how they work-
How does mining impact the environment?
It has a positive impact on the environment by permanently altering the ecosystem.
It has a positive impact on the environment by releasing chemicals into the environment.
It has a negative impact on the environment by allowing toxic chemicals to harm wildlife.
It has a negative impact on the environment by providing new niches for wildlife to inhabit.
Answer:
It has a negative impact on the environment by allowing toxic chemicals to harm wildlife
Mining affects the environment and has a negative impact on it, this type of human activity produces toxic chemicals that harm wildlife.
What are the impacts of mining?Mining has a significant impact on the environment, as the development of this activity almost always involves suppression of vegetation, exposure of the soil to erosive processes with changes in the quantity and quality of surface and underground water resources, in addition to causing air pollution.
With this information, we can conclude that Mining affects the environment has a negative impact on the environment, allowing toxic chemicals to harm wildlife.
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Brainiest will be mark, if correctly answered.
No link!!!! I can’t open it!!!!
The process of upwelling occurs as a result of which of the following?
A. warmer, less dense deep water that floats to the surface
B. surface waves that mix surface and deep water
C. cooler dense water rises to the surface, replacing warmer water
D. sunlight that warms deep water that rises to the surface
Answer:
The answer you are looking for is A
Explanation:
Answer:
A
Explanation:
brainliest please?
3 ways in which our atmosphere is not like a greenhouse
( HELP ME PLEASE)!!!!
Answer:
1.) The atmosphere is an open system, with heat energy always escaping to space. Unlike the glass it absorbs 95% of the UV in the creation of ozone. This sounds insignificant, but one scientist argues variation in the 5 percent is the cause of warming.
2.) There are no winds in a greenhouse. In the greenhouse and in the atmosphere energy is partly transferred from the heated surfaces through collision between air molecules (conduction). However, in the atmosphere a large portion of that heat is transported vertically by rising air currents (convection), and also horizontally by advection or commonly wind. There are no winds in a greenhouse.
3.) Heat reduction in a greenhouse requires a physical change with a vent to let LW escape or a screen to block SW entering. Clouds are nature’s screen. However, they can block SW and LW, such that we have little idea how clouds work to modify temperatures
Explanation:
The basic idea of a greenhouse is that sunlight or shortwave (SW) energy passes through the glass and heats surfaces. The surfaces radiate that heat as longwave (LW) energy or sensible heat (heat you can feel). LW cannot pass through the glass, so is trapped and raises the temperature in the greenhouse; the glass acts like a one-way valve. A greenhouse is a closed system because the heat cannot escape unless artificially changed by opening vents or blocking sunlight. The glass supposedly represents the entire atmosphere. It also blocks 100 percent of the ultraviolet (UV) portion of the sunlight.
3. Label the parts of the digestive system on the image below by typing in the organ name next to the corresponding letter.
Answer:
A. Salivary Gland (I believe)
B. Esophagus
C. Liver
D. Stomach
E. Pancreas
F. Small intestine
G. Large Intestine
Critically explain three aspects of growth
-toddler.
-childish.
- teenager.
-adult.
- older (over 50 years)
autism
Which statement describes characteristics of planarians?
They live in freshwater, are free-living, and reproduce sexually and asexually.
Most planarians are found in freshwater. Since they reproduce through fission, they reproduce asexually. However, since they are heteromorphic, they also reproduce sexually.
Make a list of benefits from adding ethanol to gasoline?