Answer: Earth's rotation is slowing slightly with time,thus, a day was shorter in the past. This is due to the tidal effects the Moon has on Earth's rotation. Atomic clocks show that a modern-day is longer by about 1.7 milliseconds than a century ago.
Based on the trends you observed in the laboratory exercise, which objects would you expect to be attracted to a bar magnet? Check all that apply.
a metal hammer
a wooden ruler
a plastic car
the metal frame of your chair
the paper in your notebook
the screws and nails that hold your desk together
Answer:
The correct answer is - 1. a metal hammer
4. the metal frame of your chair
6. the screws and nails that hold your desk together.
Explanation:
Bar magnets are rectangular objects made up of ferromagnetic objects or substances and must carry the north and south pole ends. These objects show ferromagnetism and attract any ferromagnetic metal such as iron, steel or ferromagnetic composite.
In the case of the same ends, for instance, the north-north pole of two magnets repulse and opposite attract to one another. From the given options the correct answer is a metal hammer, the metal frame of chair and screws and nails that hold the desk.
Answer:
A.)
D.)
F.)
Explanation:
The person above me is correct, please say thanks to them
EZ POINTS GRADE 2 SCIENCE PLEASE ANSWER FUE TOMRROWAEfKEAFEAS
fill in the blanks wiht the words givewn below
Answer:
1.) tides
2.) Salinity
3.) Oceans
4.) reef
5.) Intertidal Zone
6.) Neritic Zone
7.) Benthic Zone
8.) Reef
9.) Estuary
10.) Marine Biome
Hope this helps!
Describe three different measures that can be obtained from a single age distribution graph comparing males and females of a given population. (please answer quickly and give a good answer with an explanation)
Answer:
it can show a population pyramid
They also show the number of dependents (children and, sometimes, elderly people) and general structure of the population at any given moment.
it compares and contrast the age of th female and male where it typically forms the shape of a pyramid when the population is growing which can give you a general idea on both genders
it can help see who (female or male) are the most type in that area
hope thsi helps!
please mark brainiest<3
Olivia is on a swing at the playground.
If the swing is moving from W to Z, at which point is her
kinetic energy increasing and her potential energy
decreasing? (based on a starting point of W)
Ow
OX
z
OY
3
Oz
Х
Y
Answer:
C. Y
Explanation:
The point that the kinetic energy increasing and its potential energy decreasing is Oz.
How to measure kinetic energy?To calculate the kinetic energy of an object with mass “m” and speed “v”, we must apply the formula Ec = mv²/2, where: Ec – kinetic in joules; m – mass in kg; v – speed in m/s.
What is potential energy?Gravitational potential energy that depends on the vertical position and mass of an object.
With this information, we can conclude that The point at which the kinetic energy increases and its potential energy decreases is Oz.
Learn more about kinetic energy in brainly.com/question/999862
What does the author want readers to imagine as they begin reading? Why? As you read these words, electricity is zinging through your brain, voracious killers are coursing through your veins and corrosive chemicals bubble from your head to your toes. In fact, your entire body is like an electrical company, chemical factory, transportation grid, communications network, detoxification facility, hospital and battlefield all rolled into one. The workers that drive these activities are your cells.
Answer:
The author wants the reader to think of a highly dynamic system, with movement, effectiveness and productivity.
Explanation:
As we can see in the text presented above, the author shows the human body as a highly dynamic and movement system that allows the correct functioning of all body functions. This makes the reader think of a highly dynamic factory that works in agility so that all its products are produced quickly and with great efficiency. The dynamics that the author presents becomes more evident when he says that this system is full of workers, who are the cells that regulate all work.
Water is the universal solvent because it can dissolve on earth.
True or False
What is Photosynthesis?
[tex]\bf{\underline{\underline{PHOTOSYNTHESIS }} }[/tex]
Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive.Carbon dioxide, water and light are all needed for photosynthesis to take place.Photosynthesis happens in the leaves of a plant.
help with biology please
Answer:no
Explanation:picture
Answer:
i think its number 1
hope that helps!
Which of the following describes a path oxygen might follow as it cycles?
A. Bird exhales. → Oxygen combines with hydrogen to produce rain.
Oxygen is taken in through a plant's roots.
B. Plant releases oxygen as a byproduct of photosynthesis. →
Oxygen molecules diffuse through the atmosphere.
> Bird
inhales.
C. Oxygen percolates through the soil. → Oxygen enters the ocean
and evaporates. → Bird inhales.
D. Bird exhales. → Oxygen molecules diffuse through the oceans. →
Plant takes oxygen in for photosynthesis.
SUBNITI
The plants releases oxygen as a byproduct of photosynthesis. this oxygen molecules diffuse through the atmosphere which are inhaled by birds. The correct option is B.
What is photosynthesis?Photosynthesis is the process of making their own food by plants using carbon dioxide and water in the presence of sunlight and chlorophyll.
During photosynthesis, plants release oxygen as a byproduct which diffuses in the atmosphere and get inhaled by the organisms.
Photosynthesis' principal role is to transform sunlight into chemical energy and then hold that chemical energy for later use. This process powers the majority of the planet's living systems.
Photosynthesis is the process by which water and carbon dioxide are converted into glucose and oxygen. The plant consumes glucose as food and produces oxygen as a waste product.
Cellular respiration is the process by which glucose and oxygen are converted into water and carbon dioxide. Water and carbon dioxide are byproducts of the process, and ATP is the energy that is produced.
Thus, the correct option is B.
For more details regarding photosynthesis, visit:
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Your nervous system includes the brain and spinal cord
A. True
B. False
Answer: A
Explanation: The nervous system is the brain and spinal cord.
Answer:
A. True
Explanation:
Explain how specialized structures found in multiflora rose support its reproduction and spreading/dispersal throughout ecosystems in the United States. Use evidence and scientific reasoning to support your response.
Answer:
Presence of thorn stems, invasive nature and strong scent of of multi rose plant.
Explanation:
The presence of thorn stems, invasive nature and strong scent of of multi rose plant are the specialized structures found in multiflora rose support its reproduction and spreading and dispersal throughout ecosystems in the United States. The presence of thorn stems prevent animals to feed on the multi rose plant while on the other hand, strong scent of of multi rose flower attract pollinators that increase its pollination and increase occur in its population.
La coordinación nerviosa controla funciones de sensibilidad y respuesta inmediata ante los estímulos recibidos. Una de las funciones primordiales de la médula espinal se concentra en:
a)regular la temperatura corporal
b)controlar el sueño y la vigilia
c)el arco reflejo
d)la memoria
what is photosynthesis
Answer:
please tell me you know, my hands are literally shaking at how easy this question is
Explanation:
the answer is photosynthesis is a way for plants to make oxygen
still not enough information? they convert carbon-dioxide and water into oxygen and sugar, so they eat the sugar making their own food, put plants are living if they eat sugar. so they also have cellular respiration from mitochindria (photosynthesis is from chloroplasts and chrolophyll inside the chloroplast) and plants BREATH OUT SOME CARBON-DIOXIDE and produce more Oxygen than carbon-dioxide, thus providing the earth with Oxygen
Which of the following substances will conduct electricity?
A) Methanol
B) Aqueous KCI
C) NaCl in its solid form
D) Sugar solution
Answer:
b
Explanation:
because It have ionic bonding and when in molten form ions are mobile and carry a charge however when in solid form it wouldn't conduct electricity as the ions will be fixed in position.
hope this helps:)
Which of these building materials is a renewable resource?
A. Stainless steel
B. Bamboo
C. Granite
D. Limestone
what animal has the strongest sense smell
Answer:
I think African Elephant
Which animal has the strongest sense of smell?
[tex]\longrightarrow{\pink{African \:elephant. }}[/tex]
It has been scientifically proven that African elephants have the strongest sense of smell.[tex]\bold{ \green{ \star{ \orange{Mystique35}}}}⋆[/tex]
what allows for differences between individuals due to differences in inherited DNA?
a. genetic variation
b. meiosis
c. interphase
d. mitosis
helpppppppppppppppp meeeeee plzzzzzzzzzzzz
Answer:
Im not a 100% but i think it's option C, if not then it has to be B
Hope this helps!
What happens in the anther?
A. Eggs are made
B. Photosynthesis takes place
C. Pollen is produced
Answer:
C. Pollen is produced
Explanation:
The pollens are produced in the anther. So, option (C) is the correct answer.
fungi and bacteria are_____.
-plants -producers -decomposers
Answer:
decomposers
Explanation:
Answer:
decomposer
Explanation:
Fungi and bacteria are the most common decomposers.
When a piece of paper or wood is burned, you are left with ashes that seem to weigh less than the paper or wood before it was burned. Yet when a substance is burned, it is oxidized and therefore must weigh more than it did before it was burned. Explain what happened to the “missing” weight.
It just got blowed or you can say get mixed in the air around you. You can see tiny pieces of ash while buring paper or wood. And that's exactly your answer.
Answer:
The ashes of the wood or paper either got blown around in the wind because of the ashes being so small and weightless, or they went into the air around you.
An individual is found to have a high content of urea in his urine.
Explain why.
[6 marks]
he consumed drugs illegally
Answer:
High level of urea in urine may suggest: too much protein in the diet.
Which of the following is Natural Selection?
A) Organisms develop traits that allow them to survive and reproduce
B) Inherited traits change over time
C) Traits that offer and advantage/benefit will passed on offspring
D) All are correct
Marcus is testing a hair sample from the telogen stage. What is likely to be TRUE about this sample? A. There will be several medullas present. B. There will be mitochondrial DNA present. C. There will be nuclear DNA present. D. There will be very little DNA present.
Answer:
c
Explanation:
no explanation (plz give brainliest)
The statement C is correct. There will be nuclear DNA present.
What is DNA?Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.
Moreover, DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells, distributed among 46 long structures called chromosomes.
Hence, DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases.
Learn more about DNA:
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Which of the following statements about xylem and phloem is true?
A. Xylem moves food down, while phloem moves food up
B. Xylem moves water up, and phloem moves water down
C. Xylem moves water up, and phloem moves food down
Answer:
C. Xylem moves water up, and phloem moves food down
Explanation:
The xylem moves water up, and the phloem moves food down. So, option (C) is correct answer.
Someone pls help me ill give out brainliest pls don’t answer if you don’t know
WHATS THE ANSWER ?????
Answer:
Antigens are secreted by the endocrine system
Explanation:
The main job of the innate immune system is to fight harmful substances and germs that enter the body, for instance through the skin or digestive system. The adaptive (specific) immune system makes antibodies and uses them to specifically fight certain germs that the body has previously come into contact with
a fossil find contains impressions of leaves that lived on the ancient plants. How would you classify this type of fossil?
A.) original material
B.) molds and casts
C.)amber
D.) replacment
Answer:
molds and casts
Explanation:
Fossil molds and casts preserve a three-dimensional impression of remains buried in sediment. The mineralized impression of the organism left in the sediment is called a mold. The mineralized sediment that fills the mold recreates the shape of the remains. This is called a cast.
Which of the following is an example of succession?
A.a pond changing into a meadow
B.spring changing into summer
C.a tadpole changing into a frog
D.day changing into night
Answer:
A tadpole changing into a frog is an example of succession.
Explanation:
C is the answer.
The specialization of the pharyngeal jaws of cichlids for different diets represents a trade-off in function because ___________. See Section 41.2 (Page 858) . View Available Hint(s) The specialization of the pharyngeal jaws of cichlids for different diets represents a trade-off in function because ___________. See Section 41.2 (Page 858) . algae eating cichlids must swim faster crushing snails is only carried out by fish of the genus Labeotropheus cichlids in Lake Victoria are the only fish with pharyngeal jaws the more specialized pharyngeal jaws are for one diet, the less adapted they are for the ingestion of other foods
Answer:
The correct answer is - the more specialized pharyngeal jaws are for one diet, the less adapted they are for the ingestion of other foods
Explanation:
Pharyngeal jaws are also called throat jaws and are specific for the prey. These jaws have strong muscles and plastic or easy-to-modify teeth. If an organism has pharyngeal jaws specialized for a specific diet or prey it will have lesser chances to adapted well according to the new diet. For instance, pharyngeal jaws highly specialized for scale eating will not be able to adapt well if the fish ingests algae.
