Answer:
Explanation: Carbon dioxide is a greenhouse gas and it is involved with accelerated climate change
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:
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.
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:
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
Who suggested that the distance of a galaxy is proportional to its recessional speed
Answer:
Edwin Hubble
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
Speculate how mutations cause changes that can then be seen over many generations.
Answer:
Over thousands of generations, many mutations will be introduced into a population and some of these will increase to a detectable frequency as a result of selection or genetic drift. Both of these processes may take a long time to make a measurable increase in allele diversity. hope this helps :D
Mutations are errors produced during DNA replication. These errors can be perpetuated by successive cell divisions in daughter mutated cells.
A mutation is any alteration in the genetic material (DNA) of an organism. These mutations can occur as spontaneous genetic errors during DNA replication.
In somatic and germinal cells which suffered a mutation, each successive DNA replication cycle before mitosis/meiosis will produce new daughter cells carrying the mutation.
The consequence of this process is the perpetuation of the mutation in the cell lineage originated from a parental 'mutated' cell.
The DNA repair mechanisms work to avoid the perpetuation of genetic mutations.
Somatic mutations cannot be passed to the next generation (i.e., they are inherited by somatic cells that divide through mitosis), whereas germline mutations can eventually be inherited in the next generations through gametes.
In conclusion, mutations are errors produced during DNA replication. These errors can be perpetuated by successive cell divisions in daughter mutated cells. In germline cells, mutations can eventually be inherited by successive generations.
Learn more in:
https://brainly.com/question/11333262?referrer=searchResults
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.
PLEASE ANSWER ASAP!! AM BEING TIMED !!
ONLY ANSWER IF UR 100%
Which choice is an example of pollution?
bacteria in soil
fish in rivers
oxygen in the atmosphere
solid wastes on land
Answer:
solid wastes on land
Explanation:
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
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:
Pretest: World Trade and communication
Submit Test
Reader Tools
0 Info
16
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:
hello please help i’ll give brainliest
Answer:
B or the second answer
Explanation:
Answer: I think It is B
Explanation:
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.
Which of the following are formed
from many different
monosaccharides?
A. disaccharides
B. oligosaccharides
C. polysaccharides
D. monomerides
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
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.
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.
What does it mean to germinate?
A To stay underground
B To stay covered
C To start to die and wither
D To sprout or grow
Answer: the answer is to sprout or grow
Why are disease and infection easily given
to organisms that reproduce sexually?: The given because they are easier to be transmitted threw unsafe sexual activity
what is cell ??
ASAP. please
The cell is the basic structural, functional, and biological unit of all known living organisms. A cell is the smallest unit of life. Cells are often called the "building blocks of life". Unicellular organisms are those that have only one cell, i.e. single-celled. Examples are prokaryotes and protists. Multicellular organisms are those possessing more than one cell. Examples are plants and animals.
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?
P-waves vibrate molecules by *
volume change it travels through all types the media......
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.
How do I find the protons, neutrons, and electrons in this picture
Answer:
The protons will be the atomic number (4), and the electrons are always the same as protons (4). To find neutrons, subtract the atomic mass from the atomic numbers (5).
Explanation:
Have a good day :)
Which two processes involve gametes?
A. Sexual reproduction
B. Mitosis
C. Asexual reproduction
D. Meiosis
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.
Counting a few organisms with in a population and multiplying that number
to estimate the total size of a population is an example of *
Select the correct answer from each drop-down menu.
The rule of law is important because it
In regard to governments the rule of
law
Blank 1
protects citizens from crime and injustice
helps reduce the number of Supreme Court cases
ensures that an innocent person is not accused of a crime
Answer:
helps reduce the number of Supreme Court cases
Explanation:
all three are true but in regards to the govenment, the second option should be selected
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