Answer:
Explanation:
The flowing of liquid metal in the outer core of the planet generates electric currents. The rotation of Earth on its axis causes these electric currents to form a magnetic field which extends around the planet. Deep in the Earth, molten metal flows due to heat which causes convection.
What am I?
I am all around the world
My pull keeps planets aligned
My push makes things move
I also have a big role in Star Wars.
What am I?
What do folded mountains indicate happened in an area?
(A) Tectonic plates have been sliding past each other
(B) Tectonic plates have stopped moving and remained still.
(C) Tectonic plates have been travelling away from each other.
(D) Tectonic plates have collided and pushed against each other.
Answer:
Fold mountains are created where two or more of Earth's tectonic plates are pushed together. So I'm pretty sure its D.
Explanation:
name the gas which is produced during respirated
Answer:
When an animal breathes, it takes in oxygen gas and releases carbon dioxide gas into the atmosphere. This carbon dioxide is a waste product produced by the animal's cells during cellular respiration. Cellular respiration occurs in the individual cells. Digested foods have chemical energy stored in them.
Explanation:
Which of the following would be classified as a renewable resource?
O A barrel of oil that would take 8 million years to form.
A large piece of coal that would take 4 million years to form.
O Solar rays from the Sun that take 8 minutes to reach the Earth.
O Methane gas from the ocean floor that takes 7 thousand years to outgas.
Who suggested that the distance of a galaxy is proportional to its recessional speed
Answer:
Edwin Hubble
Explanation:
Which of the following is a way in which the atmosphere does NOT
interact with the hydrosphere? *
A). Decreasing the salinity of oceans from increased temperatures causing glacial
melting.
B). Developing hurricanes over warm ocean currents.
C).Increasing the amount of water evaporation from oceans and global temperatures
rise.
D). Gases moving sediment from hill tops
Variation in genotype is caused by
O None of the above
e phenotypes changing more quickly than genotypes.
o recombination of genes as a result of sexual reproduction.
O
O mutations only.
Answer:
Mutations, the changes in the sequences of genes in DNA, are one source of genetic variation. Another source is gene flow, or the movement of genes between different groups of organisms. Finally, genetic variation can be a result of sexual reproduction, which leads to the creation of new combinations of genes.
Which feature must a community have in order to use wind energy?
A. An average elevation change of 20 feet per mile to allow the wind
to flow downhill
B. Molten rock near groundwater supplies
C. Nets to keep birds and bats away from the turbines
D. An average wind speed of at least 15 miles per hour and enough
land to build several wind turbines
PLEASE HELP ASAP
molten rocck near ground water supplies
Flowering Locus C (FLC) is a gene that is responsible for flowering in certain plants. FLC is expressed in new seedlings, which prevents flowering. Upon exposure to cold temperatures, FLC expression decreases and the plant flowers. FLC is regulated through epigenetic modifications. What type of epigenetic modifications are present in new seedlings and after cold exposure
Answer:
- New seedlings: histone acetylation
- After cold exposure: histone methylation
Explanation:
Vernalization is an adaptive mechanism whose objective is to ensure that flowering occurs only after winter (i.e., after cold conditions). In certain plants, this process (vernalization) suppresses the expression of genes that encode repressors of flowering. In Arabidopsis, vernalization is associated with histone modifications at FLC chromatin. The FLOWERING LOCUS C (FLC) is a MADS-box gene that acts as a repressor of flowering in Arabidopsis. Epigenetic modifications control the expression of the FLC gene. The FLC gene is expressed at low temperatures due to histone acetylation at FLC chromatin, and thereby the expression of FLC mRNA transcripts ensures that the Arabidopsis plant cannot flower. Subsequently, as the Arabidopsis plant is exposed to cold, FLC is repressed by the accumulation of trimethylation on lysine 27 of histone 3 (H3K27me3), thereby allowing it to flower when temperatures become warmer.
Need help ASAP! Will give brainliest;) NO links please, will report.
Which statement is part of Darwin’s theory of evolution by natural selection?
A). Acquired characteristics that are inherited are the cause of evolution.
B). The organisms that are the fittest are always largest and strongest.
C). The number of offspring is not related to fitness.
D). More offspring are produced than can possibly survive.
7. Which of the following will NOT help reduce your carbon footprint?
A. Using less water
B. Recycling
C. Driving the car for transportation
D. All of the above will help reduce your carbon footprint
Answer: C
Explanation: Driving your car will actually release more carbon dioxide. If you wanted to reduce your carbon footprint you may instead choose to take the bus or ride your bike to your destination
Hope this helps
Answer:
d.
All of the above
Explanation:
A scientist is observing various phenomena in the environment. He wants to plot the position of various objects as a function of time. Which plot will yield a periodic wave?
A.
the position of a baseball player rounding the bases
B.
the position of a roller-coaster car traveling along a track
C.
the position of a sticker on a wheel rolling along the road
D.
the position of a raindrop falling to the ground
Answer:c
Explanation:
Answer:
c
Explanation:
the position of a sticker on a wheel rolling along the road
Which part always comes FIRST in the scientific name?
Answer:
The first part of the scientific name is the genus, and it is always capitalized. (The plural is "genera"). The second part is the species epithet. The entire name is written in italics.
Explanation:
hope this helps
The axon, or thin part of a nerve cell that branches off from the cell body, can be
insulated with: *
Complex proteins
Blood plasma
Skeletal muscle
A fatty myelin sheath
What are some differences between past and modern snakes?
Answer:
Past snakes would slither, Modern day snakes would gossip
Explanation:
Past snakes were skinny, had no arms or legs, and could possibly be venomous. Modern day snakes are actual people.
Pretest: World Trade and communication
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Select the correct answer from each drop-down menu.
What type of grain farming generally occurs in the United States?
This type of farming relles heavily on
Farmers in the United States are engaged in
to cultivate large areas of land.
Answer:
Corn.
Explanation:
Corn is a type of grain farming generally occurs in the United States because of its demand to the livestock sector of United States of America. This corn crop is cultivated by farmers on large areas of land in order to fulfill the requirements of the livestock sector. Corn is a cash crop and can be cultivated in different states and regions of United States such as Illinois, Iowa, Indiana, eastern portions of South Dakota and Nebraska, western Kentucky and Ohio.
After which event will ecological succession most likely happen
Answer:
a) a forest fire
Explanation:
What is climate change? O A. Lange-scale changes to weather patterns B. Increasing temperatures only C. Natural cycles of cooling and heating D. Decreasing temperatures only
Answer:
C. Natural cycles of cooling and heating is the best option.
Explanation:
C. is the only answer that describes climate, the others describe weather. Climate is natural conditions over a long period of time while weather is over a short period of time.
Please give brainliest.
Which two processes involve gametes?
A. Sexual reproduction
B. Mitosis
C. Asexual reproduction
D. Meiosis
5 What will MOST likely happen to the Alps millions of years in the future?
(A) The Alps will continue to be folded and grow in size.
(B) The Alps will stop folding and will get smaller in size.
(C) The Alps will eventually stop folding and remain the same size.
(D) The Alps will continue to be folded but will remain the same size.
Answer:
I don't know but im pretty sure its either C or B goodluck
How did researchers try to change the avian flu virus to make it more easily spread between humans?
Answer:
They did not try to do this.
Bird flu, when it first crossed over to humans, was not human to human transmissible.
But as a virus evolves, we expect sooner or later that it would get that ability.
Researchers do not need to try to get evolution what evolution would do all by itself anyway.
I know that very often the people that say that the Chinese created a virus in a lab are also people that say that they do not believe in evolution.
Stop being a hypocrite about it.
No one was researching how to do this, no one needed to research how to do this because this is done naturally by natural evolution, and no one would want to do this for any reason.
When you accuse “researchers” of trying to do something that has no benefit to science then you accuse all science researchers when you lie about it.
Put these in order NO LINKS NO LINKS PLEASE
Choices: bronchi, nasal cavity, capillaries, trachea, pharynx, aveoli, bronchioles
Answer:
Nasal Cavity, Pharynx, Trachea, Bronchi, Bronchioles, Alveoli and Capillaries.
Explanation:
We first breathe in the air through our nose so it goes through our nasal cavity. After that it goes down our throat past the pharynx (voice box) and through the trachea (windpipe). From here it arrives in our lungs via the bronchi, which then splits into smaller bronchioles which have alveoli at the end of them. The alveoli then have small capillaries which the oxygen goes into so it can travel around the body through the bloodstream.
Hope this helped!
Counting a few organisms with in a population and multiplying that number
to estimate the total size of a population is an example of *
hello please help i’ll give brainliest
Answer:
B or the second answer
Explanation:
Answer: I think It is B
Explanation:
larry cant do math he sucks
daamnnn that's tuffff
i can help larry im reslly good st ig
Using what you read in this passage, evaluate the following vacation
activities. Which one would cause the least disruption of the balance of
the coral reef?
A
Sport fishing on the reef
B
Scuba diving to view the reef species
с
Collecting rocks and shells as souvenirs
D
Attracting sharks to the reef with bait for photos
From the listed human activities, Scuba diving to view the reef species though disruptive, would produce the least disruption to the balance in the coral reef.
What are coral reefs?Coral reefs are narrow and shallow stretches land where corals ate found and these corals serves as foundation for reefs to form.
The reef is an ecosystem consisting of algaes and fishes as well as some other aquatic organism.
The balance in coral reefs can be disrupted by human activities such as:
Sport fishing on the reefCollecting rocks and shells as souvenirsAttracting sharks to the reef with bait for photosHowever, Scuba diving to view the reef species though disruptive, would produce the least disruption to the balance in the coral reef.
Learn more about coral reefs at: https://brainly.com/question/10970167
After fertilization, the successful development of a mature, full-term fetus depends on A. The release of human chorionic gonadotropin (hCG) by the developing placenta AND the production of estrogen and progesterone by the placental tissues B. the release of human chorionic gonadotropin (hCG) by the developing placenta C. maintenance of the corpus luteum for all 9 months D. all of these E. the production of estrogen and progesterone by the placental tissues
Answer:
The correct option is A (The release of human chorionic gonadotropin (hCG) by the developing placenta AND the production of estrogen and progesterone by the placental tissues).
Explanation:
The developing placenta release Human chorionic gonadotropin (hCG) during pregnancy. What this hormone does is tell the body (corpus luteum) to produce progesterone to maintain the pregnancy. The presence of Human chorionic gonadotropin is a sign of pregnancy, meaning successful fertilization had happened, and implantation of the embryo had occurred too, preventing another cycle of menstruation.
The successful development of a mature, full-term fetus also depends on estrogen which during pregnancy aids the formation of blood vessels and also aids fetal maturation. While progesterone is a hormone when released during pregnancy helps maintain a healthy pregnancy.
The diagram shows the life cycle of a pine tree. What happens during the stage labeled 6?
Answer:
For Ap3x the answer is:
A seed that contains an embryo plant grows into a young pine tree.
Explanation:
P-waves vibrate molecules by *
volume change it travels through all types the media......
are trees producers?