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Answer:
D
Explanation:
70 plus 30 = 100%
Related Questions
Two interacting systems involved in plant transport are shown here. Which statement best describes the function of xylem and phloem in transporting substances throughout the plant?
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Answer:
C. Xylem transport water and nutrients from the soil to the leaves while phloem transport carbohydrates from the leaves to the rest of the plant.
Explanation:
Plz help fast will mark brainliest!!!
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Answer:
100 miles per hour
Explanation:
PLEASE HELP
Which of the following is not a random occurrence?
A selection of the best-suited traits for the environment, leading to adaptive evolution
Genetic drift changing the gene pool of a population and creating fluctuations in the allele frequencies
The bottleneck effect after an earthquake, resulting in a reduction of genetic variation
The founder effect, when a small population is isolated and the gene pool significantly reduced from the parent population
Answers
Answer: A selection of the best-suited traits for the environment, leading to adaptive evolution brainliest
Explanation:
which of the following scientists can be identified as a taxonomist?
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Answer: Taxonomy is the science of naming, describing and classifying organisms and includes all plants, animals and microorganisms of the world. Using morphological, behavioral, genetic and biochemical observations, taxonomists identify, describe and arrange species into classifications, including those that are new to science.
write two examples of consumers tell whether they are herbivores omnivores carnivors or scavengers
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Answers
Lion,Tiger -Carnivores
vulture- scavenger
Cow,sheep -Herbivores
Man, Pig -Omnivores
In an ecosystem, consumers are organisms that obtain their energy and nutrients by feeding on other organisms. They are a vital part of the food chain, and they come in different sizes and types.
Consumers can be classified into several categories based on what they eat. For example:
Herbivores: These are animals that consume only plants for their food. Examples include rabbits, cows, and giraffes.Carnivores: These are animals that consume other animals for their food. Examples include lions, tigers, and sharks.Omnivores: These are animals that eat both plants and animals. Examples include humans, bears, and raccoons.Scavengers: These are animals that feed on the remains of dead organisms. Examples include vultures, hyenas, and some types of beetles.Consumers play an important role in an ecosystem, as they help to transfer energy and nutrients from one level of the food chain to another. They are an integral part of maintaining the balance and stability of an ecosystem.
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The north pole of a compass magnet points toward
O A. magnetic north
B. geographic south
C. geographic north
D. magnetic south
SUBMIT
Answers
D. Magnetic south
Hope this helps :)
Due to its location, Hawaii does not have very many land birds. The Hawaiian honeycreepers are a favorite for many ornithologists. There are over 50 species of honeycreepers that can all be traced back to one ancestor. The level of diversity in an ecosystem can be determined by the frequency of speciation and extinction.
a) Describe speciation and identify two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to speciation.
b) If the Hawaiian honeycreepers became extinct, explain how the newly available niches could lead to speciation.
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Answer:
In speciation, organisms evolved with the passage of time.
Explanation:
Speciation is the evolutionary process in which populations of species evolve with the passage of time to become different species from the original one. Temporal isolation and gametic isolation are two possible prezygotic barriers of the Hawaiian honeycreepers that contribute to occur speciation. The newly available niches could lead to speciation of that organisms that tolerate the Hawaiian climatic conditions when the extinction of Hawaiian honeycreepers occurs. The new organisms used the available resources such as food and space etc and increase its population.
Can someone help me
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6. What is the complementary messenger-RNA sequence for the DNA sequence shown below?
(Helpful hints: RNA has U not T. Under the C, write a G, Under G write a C, under A write U, under the T write an A for adenine.
Portion of DNA: CAC ATT - write the complementary mRNA sequence below
Portion of mRNA:
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Which can be prevented with vaccines: bacteria,
viruses, or both?
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Answer:
Both
Explanation:
But not all viruses can be stopped by vaccines as there are retro viruses which are impossible to stop
PLEASE HELP ME!!!!
IT IS FOR BIOLOGY!!!
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Answer:
B.
Explanation:
If the fish population is decreasing, then there will be a loss in biodiversity, then causing a problem in the ecosystem.
mRNA
UGU UAU AUC GAA
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Answer:
I can not see the picture?
DON'T GIVE ME A LINK! ANSWER THE QUESTION!
A student wants to use cookies to make a model of the genetic makeup of the offspring of asexual reproduction. He has vanilla cookies and chocolate cookies available. How can he make his model?
A.
Put chocolate cookies in a row with arrows between them showing the progression from parent to offspring.
B.
Use one chocolate cookie parent with arrows showing that it produces vanilla cookies and chocolate cookies as offspring.
C.
Use chocolate cookies and vanilla cookies as the parents, and vanilla cookies and chocolate cookies as the offspring.
D.
Use chocolate cookies and vanilla cookies as parents, and combine half a vanilla cookie and half a chocolate cookie for the offspring.
(sorry if this sounds a little aggressive but I'm tired of people giving links to files that are dangerous for children, especially a site made up for children who knows how old. I don't want anything to happen to them that can traumatize them for the rest of their lives)
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Answer: its D i hope
Explanation:
Toxicology is used to determine
A. the classification of a pathogen
B. the vectors of a disease
C. how poisonous a substance is
D. what emerging viruses can cause disease
Other:
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Fossil fuel dependence has an impact on which of the following?
A)
the environment
B)
economics
C)
poverty
D)
international security
E)
all of the above
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4. Darwin and Wallace both gathered a large number of observations and facts on which they based
their theories. Which of the following types of evidence was NOT part of the evidence they gathered?
a. fossil evidence
b. anatomical evidence
C. geographical distribution
d. genetic evidence
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Answer:
c I hope I got it but have a good day
The type of evidence that should not be part of should be genetic evidence.
What is genetic evidence?It is the evidence where it predicted the no of human ancestors. Here the relation between the genetic diversity & the size of the population should be considered. So based on this, it received large no of observations and facts related to the fossil, anatomical, and the geographical evidence
Therefore, the option d is correct.
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4. The suns energy causes water to change from liquid to gas during the process of ..
A. precipitation
B. condensation
O C. evaporation
O D. Water cycle
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pls help i am failing
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methionine
lysine
phenylalanine
leucine
alanine
glycine
Energy that comes from the Sun
1. chlorophyll 2.Photosynthesis
3.Radiant energy
4.Phytoplankton
Answers
Answer:
2
Explanation:
Chlorophyll is the molecule that absorbs sunlight and uses its energy to synthesise carbohydrates from CO2 and water. This process is known as photosynthesis and is the basis for sustaining the life processes of all plants.
What is the impact of developing and using rock, mineral, and energy resources on earth's living and non living systems
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Answer: The use of rock, mining and energy production contaminates the environment by affecting the abiotic land mass. And therefore, by contaminating the habitat, the living beings that live there are harmed.
Explanation:
Mineral and rock extraction, transport and processing comprise actions that produce environmental impacts because it produces a certain disturbance to the surface and underlying strata, as well as to aquifers. These impacts can be short-lived, lasting as long as the mine is operational, or they can persist after mine development has been completed.
Major impacts include:
Contamination of soil, vegetation, drainages, rivers and groundwater aquifers contamination from leaking tailing piles and slurry ponds. If not properly treated, effluent from surface or subway mine water disposal can be highly acidic, and will contaminate surface waters and shallow groundwater with heavy metals, nitrates or oil from equipment, reducing local water supplies. During surface mining, movement and stockpiling of overburden, constructions or covering of soils alter rivers, drainages and coastal areas. Surface disturbance caused by access roads, pits, and site preparation.Noise and emissions from the operation of equipment.Air pollution, atmospheric dust from traffic, excavation, drilling and site clearing. Atmospheric particulates come from blasting, excavation and earth moving, transportation or any operations that occur on the surface of subway mines.Removal of rock strata can disrupt the continuity of the local aquifer, and cause interconnections and contamination between groundwater.Both surface and subway mining include a drainage of the mine area and discharge of mine water, the removal and storage/disposal of large volumes of waste and the transfer and processing of minerals or construction materials. This requires the use of diesel or electric mining and haulage equipment. Transportation of ore within the mine area and to processing facilities may use trucks, conveyors, rail, polyduct or conveyor belt which are vehicles that emit large amounts of carbon dioxide.
Processing plants may be located in mountainous regions and so may have difficulty disposing of production wastes and other pollutants. They may then end up disposing of them in rivers or coastal waters.
The land at the surface of the mines will be unstable, there will be fracturing and subsidence, it will modificate soils, vegetation, rivers, wildlife habitat, wetlands, causing a temporary or permanent loss of land productivity, and contamination of soils due to mineral materials and toxic substances.
Also, the production and use of energy is the main cause, together with transportation, of greenhouse gas emissions, the gases responsible for climate change. Consequences of climate change are increased temperatures, rising sea levels and reduced rainfall.
The current model of generation, transport and consumption, absolutely dependent on fossil fuels, is unsustainable. The chemical products emitted, mainly from coal and oil-derived thermal power plants, are transported by the wind and deposited by rainfall thousands of kilometers away from their origin, causing "acid rain", which is the cause of the deterioration and destruction of forests, lakes and other ecosystems. Another example are the Nuclear power plants which produce high-level radioactive waste (long-lived, highly radioactive), which poses a constant threat to the environment due to the current inability to manage it.
Thus, the use of rock, mining and energy production contaminates the environment by affecting the abiotic land mass. And therefore, by contaminating the habitat, the living beings that live there are harmed.
The impact of developing and using rock, mineral, and energy resources will be:
loss of biodiversity, soil erosion, and contamination of surface water, groundwater, and soil.
Impact of Minerals:They help us to develop new technologies and are used in our everyday lives. Our use of rocks and minerals includes as building material, cosmetics, cars, roads, and appliances. In order maintain a healthy lifestyle and strengthen the body, humans need to consume minerals daily. Soil, rocks, and minerals provide essential metals and other materials for agriculture, manufacturing, and building.
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4. While on the Galapagos Islands, Darwin observed variety in one type of
animal that was later used to help him form his theory of natural selection.
Which type of animal was this? *
Finches
Giant turtles
Lemurs
Bananas
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An increase in heart rate (your heart pumps faster) results in...
Answers
Answer:adreninal rushes after doing workouts
Explanation:
Explanation:
it can mean that your are running or moving around or that you are having adrenaline rush or just did cocain or so other drug
Which of the following best describes a relationship in this grassland?
A Badgers are top predators because they eat upland sandpipers and beetles.
B A producer-consumer relationship exists between lupines and ants.
C a predator-prey relationship exists between beetles and ground squirrels.
D upland sandpipers are primary and secondary consumers because they eat grasses and grasshoppers.
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Answer:
D.
Explanation:
They consume both things that consume food and things that produce food.
Rocks are made of collections of mineral grains that are held together in a firm, solid mass. Rocks are identified primarily by the minerals they contain, their color, and their texture.
Based on this passage, you can infer...
A. Rocks are classified into three major groups
B. Rocks form from the cooling and hardening of molten rock
C. A rock's origin is the way it was formed
D. Each type of rock has a distinctive set of minerals
OMG PLSSS HELP ME PLS PLS PLS!!!!!!!
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Answer:
Explanation: it’s a
The neurons that send signals from the brain to the body muscles are motor neurons
true or false
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Answer:
true
Explanation:
What is the main body system affected from sickle cell anemia?
Answer choices:
Digestive System
Nervous system
Circulatory System
Respiratory system
Muscular System
Skeletal System
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Answer:
Any and all major organs are affected by sickle cell disease. The liver, heart, kidneys, gallbladder, eyes, bones, and joints can suffer damage from the abnormal function of the sickle cells and their inability to flow through the small blood vessels correctly.
Explanation:
Answer:
The main body system affected by sickle cell anemia is the Circulatory system.
Explanation:
According to John Hopkins Medicine (a reliable source), "Any and all major organs are affected by sickle cell disease. The liver, heart, kidneys, gallbladder, eyes, bones, and joints can suffer damage from the abnormal function of the sickle cells and their inability to flow through the small blood vessels correctly."
What are the characteristics of sodium?
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Answer:
it is a soft metal
it react In a low melting point with a relative density
it is luster
it is of silver and white colour
it have ductility
Please help what's the answer
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Students learned that the job of one body system is to filter out cellular
wastes, toxins, and excess water or nutrients. Which body system has
this function? *
A. Excretory system
B. Muscular system
C. Endocrine system
D. Skeletal system
HELP ME PLEASE ❤️
Answers
Answer:
A. Excretory system
hope it helps
Describe how radio telescopes are used to explore space.
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Answer:
A radio telescope is a form of radio receiver used in astronomy. In contrast to an "ordinary" telescope, which receives visible light, a radio telescope sees radio waves emitted by radio sources, typically by means of a large parabolic (or a "dish") antenna, or arrays of them.
Explanation: