Dinosaurs became extinct hundreds of millions of years ago. Scientists have been trying to determine the cause of the extinction. There have been many different claims about how dinosaurs disappeared.
Which best explains why there could be more than one claim about the disappearance of the dinosaurs?
All the claims can be validated through experimentation.
Data results can be interpreted in different ways.
Political groups have influence on what scientists say.
The different scientists are not experts in the field.
Answer:
Its B
Explanation:
got it right on the test
List the six fundamental elements found in living
organisms in the text area below.
Answer:
EDG2021
Explanation:
Check the elements you included in your list.
carbon (C)
hydrogen (H)
oxygen (O)
nitrogen (N)
phosphorus (P)
sulfur (S)
You might see water dont touch it
Fundamental elements found in living organisms are carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), and sulfur (S). Thus, these are the six common elements found in living organisms.
What are the roles of elements in our body?There are six common elements found in our body. Carbon is the building block of carbohydrates, fats, proteins, and vitamins. It provides us with energy. Hydrogen allows toxins and waste products to be excreted and keeps the body hydrated.
Nitrogen is used in the synthesis of protein and some hormones, oxygen is used in the combustion of food, and phosphorus is used in the formation of teeth and bone. Sulfur protects cells from damage.
Thus, the following are the six common Fundamental elements found in living organisms.
Learn more about elements, here:
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Please hurry Which of these structures are found in both plant and animal cells?
cell wall, mitochondria, ribosomes
mitochondria, ribosomes, vacuoles
vacuoles, chloroplasts, cytoplasm
cytoplasm, cell wall, vacuoles
Answer:
mitochondria, ribosomes, and vacuoles
Explanation:
chloroplasts and cell walls are only found in plants .
though rare, vacuoles are found in animal cells as well as plants .
mitochondria and ribosomes are in both types of cells .
Answer:
ribosomes
Explanation:
Nguyen's teacher gives him three rocks. Nguyen takes a photograph of each and attaches each photo in a data table in his lab manual.
Do you think these three rocks will have similar properties to each other? Or will they be different? Write down your predictions.
Answer:
Different properties, one is igneous, one is metamorphic, one is sedimentary
Explanation:
At top speed, the fastest bicycle in the world can travel from San Jose to Morgan Hill (34.9 km) in 14 minutes and 31 seconds. What is the speed of this bicycle?
Answer: 2.41 = 1 km
Explanation:
For each of the genotype (AA, Aa, aa) determine what the phenotype would be?
Pls help test tmrw….
Match the following items.
2.35 ____ earth's average distance to the sun rounded to the nearest million miles
2.36 _____ the distance light travels in 1 year
2.37 _____distance from Mars to the sun in A.U.s
2.38 _____ approximate number of miles in 1 light year
2.39 ______ number of miles in 1 A.U.
2.40 ______ speed of light
2.41 _______Neptune is 30 times as far away from the sun as the earth (number of astronomical units)
a.30 A.U.
b.92,900,000
c.1 light year
d.1.5 A.U.
e.6 trillion f.93,000,000
f. 93,000,000
g. 186,000 miles per second
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Answer:
flowers are the reproduction organ that contain the anther and stigma
QUICK, I NEED IT NOW!!!!!!!!! 50 POINTS AND BRAINLIEST IF YOU GET IT RIGHT
What forms as a result of the wind's frictional force on water?
Responses
deep sea currents that move in a path similar to the wind currents
surface currents that move in a path similar to the wind currents
deep sea currents that move in a path opposite to the wind currents,
surface currents that move in a path opposite to the wind currents
Answer:
air or co2
Explanation:
if the wind force is going to be pushed. by air whoch cretaes an atmosphere with water
Answer:
The correct answer is - waves.
The frictional force of the winds is the force with which the winds influence a surface. The smoother a surface is the lesser the friction, and vice versa. The water is a smooth surface, so the winds frictional force is not very big on it, but it is big enough to cause the occurrence of the waves. By constantly influencing the water with their frictional force the winds manage to move and disrupt the surface of the water, with the end result being the waves. Depending on the strength of the winds and the frictional force accordingly to that the waves can be very small, only few mm in height, or can be up to several meters in height.
Explanation:
pls help me will mark brainlyest :) :
Internal and External Structures
You are now going to construct an argument that plants have internal and external structures that support growth and reproduction.
Choose the internal and external structures you want to gather evidence and create a statement about.
subject: sciences
Explanation:
Some structures are internal, like the lungs, brain, or heart. Other structures are external, like skin, eyes, and claws. Some structures are unique, like the long neck of a giraffe. Other structures are more common, like a heartStructure and Function: Plants and animals have both internal and external structures that serve various functions in growth, survival, behavior, and reproduction.
A biome is determined by ______, _____, and _____
climate, latitude, weather
plants, precipitation, seasons
climate, latitude, elevation
evaporation, temperature, animals
and
Answer:a is the answer
Explanation:
Plants are considered to be ___________ because they are the only living organisms that make their own food.
Answer:
heterotrophs
Explanation:
plants can prepare their own food due to a process called photosynthesis.
animals depend on other animals or plants to make their food so they are called autotrophs
What percentage of rainfall does a desert receive compared to the total amount of rainfall in a rainforest? 10% 20% 30% 75%
Answer:
10%
Explanation:
What is an example of physiological adaptation?
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Answer:
An example of physiological adaptation is the development of a thicker fur coat in animals living in colder climates. This adaptation helps to insulate the animal and keep its body temperature regulated. Other examples of physiological adaptation include the ability of some animals to hibernate in winter, changes in the shape of feet and claws to allow better climbing, and changes in the shape of beaks to allow better feeding in different environments.
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is their more than 1 type of bird that can fly backwards
Answer:
No, only hummingbirds can fly backwards
Explanation:
In 3-5 sentances explain how the rate of photosynthesis or cellular respiration can be measured using products or reactants
What kind of energy conversion is shown in the diagram?
A. Thermal energy is used to produce mechanical energy in plants.
B. Radiant energy is used to produce mechanical energy in plants.
C. Radiant energy is used to produce chemical energy in plants.
D. Thermal energy is used to produce chemical energy in plants.
Answer:
c
Explanation:
Explain how cell division is linked to cell theory.
The science club at Tracy's school is researching how temperature affects fish reproduction. They conducted a study to find out if raising the water temperature would decrease the number of bass eggs that hatched.
They gathered bass eggs from a local lake. Half of the aquariums were kept at room temerpature, and the other half were placed in a sunny window.
What is the independent (test) variable from this experiment?
The size of the lake.
The number of bass eggs that hatch.
The temperature of the water.
The number of aquariums.
Answer:
The temperature of the water.
Explanation:
The independent variable is the thing you are changing in order to observe an outcome. The dependent variable is the outcome (the number of bass eggs that hatch).
A scientist genetically engineered a grain cereal. The genetically engineered variety can produce its own vitamins and is drought resistant. What is the likely impact of growing such a cereal crop on the society?
May trigger an adverse climate change
May worsen the water crisis around the world
Would be beneficial for the malnourished population
Would increase the shortage of food around the world
In the tropical rainforests, birds have evolved to eat the brightly-colored fruits. The fruits have evolved their attractive color so the birds will eat them and spread their seed.
What theory is this an example of?
A. artificial selection
B. natural selection
C. mutation
D. coevolution
The particles of an object move _________ when the temperature increases
A. In circles
B. Slower
C. Backwards
D. Faster
Please Help ASAP
Answer:
D: Faster
Explanation:
Hope it helped
Answer:
D. Faster.
Explanation:
As the temperature increases the particles of an object move faster due to heat making molecules move faster. Its a simple scientific rule. Hope this helped.
Explain the role of enzymes as catalysts that lower the activation energy of biochemical reactions.
Answer:
In summary, enzymes are proteins that lower the activation energy of a chemical reaction. Enzymes are not consumed or produced in a reaction, but they are catalysts that allow the reaction to proceed at a faster rate. ... Together, they form the enzyme-substrate complex.
Explanation:
Above
1. What is aerobic respiration?
Answer choice 1) The process that breaks down glucose in the absence of oxygen to release energy
Answer choice 2) the process that breaks down glucose in the presence of oxygen to release energy
Answer:
Explanation:Glucose is oxidised to release its energy, which is then stored in ATP molecules. Respiration is a series of chemical reactions, but this equation summarises the overall process. Aerobic respiration breaks down glucose and combines the broken down products with oxygen, making water and carbon dioxide.
This is an illustration of a typical food web. You might see a food web like this where you live. The organisms responsible for changing sunlight into food would be the Response area. Grass is one of these. You can see that the grasshopper and rabbit eat the grass and the bird and the shrew eat the grasshopper. Imagine that there was a big increase in the number of snakes in this area. We would then expect the Response area numbers to drop. In this food web, we consider the hawk a Response area. If the hawk population increases, we would see a drop in birds and shrews and snakes! The fungi and bacteria in the food web are examples of Response area. They break down any and all dead organisms. This helps to recycle matter.
Answer: ion know what ur question is
Explanation: when this happens this a big change in the area . could put animals in danger for living the increase of the snake would give the hawk population then the rest would go lower but then the it would even out because then the people would them and give them their food leaving the floor to grow 50 5 would be good but poeple like to make a mess take and eat it and trow it up or it out we all are gonna die one day thats lesson for today
guys this is my last question for my project pls help i rlly need it like plsi beg u:(
You are in the year where the earth has no more land available for houses you decide to build an apartment up and need things to survive in each earths 5 layers (troposphere,stratosphere, mesosphere, thermosphere, exosphere) Question: what things would you need to survive the exosphere?
someone help me do a debate.
Answer:
debate an answer
Explanation:
brainliest?
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Energy is transferred into the ecosystem when
1.when bacteria absorbs nitrogen from other organisms
2. dead organisms decay and form organic matter
3. rodent prey on invertebrates
4.plants grow from the soil
Answer:
2
Explanation:
Energy is transferred between organisms in food webs from producers to consumers.
The energy is used by organisms to carry out complex tasks. The vast majority of energy that exists in food webs originates from the sun and is converted (transformed) into chemical energy by the process of photosynthesis in plants.
Answer: between organisms in food webs from producers to consumers.
Explanation:
Cell walls can be found in several different types of cells. Which of the following best describes the function of the cell wall?
A. Controls what passes in and out of plant cells.
B. Controls what passes in and out of animal cells.
C. Provides support and helps maintain the shape of plant cells.
D. Provides support and helps maintain the shape of animal cells.
a i think but plant cells
i thibk it is a but its definitely plant cells
BRAINLIEST
While savannas and temperate grasslands are both types of
grasslands and share many characteristics, they also have
some differences. Compare them below by writing each
characteristic in the correct location. You will use each only
once.
• home to many types of grazers
• experience all seasons of weather
• home to bison
• home to the African elephant
• example: tallgrass prairies of North America
• example: Serengeti in Tanzania
• also known as tropical grasslands
• few trees due to little rainfall
1)
(Savannas)
(Both Types of
Grasslands)
(Temperate
Grasslands)
Answer:
S - Savannas are typically found in tropical or subtropical regions.
S - Savannas tend to have more trees and shrubs.
S - Savanna's climate is drier than that of a grassland.
G - Grasslands are found in temperature regions.
G - Temperature Grasslands are mainly devoid of trees, receive less rainfall than Savannas & endure broader temperature extremes.
G - Grasslands make up 25 percent of the Earth's land surface and dominate in regions with limited rainfall, which prevents forest growth. This results from nearby mountain ranges that cause rain shadows over adjacent open-range lands.
B - Both represent the world's richest and most diverse ecosystems. They both provide a home for a quarter of the world's population and a habitat for thousands of plants and animals.
B - Many species gather in vast numbers, graze on the varied grasses, and can be found nowhere else on Earth. The coexistence between wildlife and grasses is key to healthy ecosystems. Animal migrations regenerate the landscapes, by controlling pests, dispersing seeds, and trampling invasive species. Through this partnership, grasslands and savannahs generate vital benefits for both people and nature.
B - Ecosystems such as these two in specific are essential for climate mitigation – they store carbon, locking it deep in the soil and extensive root systems. They are the source of or support many of the world’s biggest rivers and wetlands, ensure food security, support livelihoods, and are embedded in the cultural identity of millions of people.
(Also, A savanna or savannah is a mixed woodland-grassland<---similarity)
Explanation: Just research. I decided to state 3 characteristics for both The Savanna and The Grasslands, and then 3 for "B" (both).