Answer:
It was easy to plant and grew rapidly.
Explanation:
What is the function of a pollen tube?
to lead sperm cells into the ovary
to create more pollen
to create sperm cells
to lead egg cells to the sperm cells
Answer:
The function of the pollen tube is to lead sperm cells into the ovary.
Explanation:
In angiosperms, the pollen tube is a structure formed when the pollen grain comes into contact with the stigma and germinates, producing a tubal extension that is related to the embryonic sac where the female gametophyte is found.
The function of the pollen tube is to conduct the male gametophyte —which is found in the pollen— to the embryonic sac, in order to come into contact with the oosphere and produce fertilization.
The other options are not correct because the pollen tube:
Do not create more pollen. Do not create more male spermatophytes. Does not lead the eggs to the male spermatophytes.Answer: to lead sperm cells into the ovary .
Explanation: There needs to be a way for the sperm cells formed by the pollen's generative nucleus to reach the egg cells that are found in the ovary.
Definition: The third planet from the sun.
Example: You are sitting on it, and it's not a chair.
Answer:
Earth
Explanation:
Answer:
earth
Explanation:
because it's the third planet from the sun
The process of genetic engineering may include either four or five steps. The diagram represents the five-step process.
Which best describes step 2?
A) Restriction enzymes cut the DNA into fragments; the fragments join with the host DNA to create recombinant DNA.
B) Recombinant DNA is inserted into a biological vector; the vector houses the recombinant DNA and can produce copies of DNA for itself and the recombinant DNA.
C) Cloning of the recombinant DNA occurs; the DNA is cloned in the biological vector to create more DNA for use in the host.
D) Recombinant DNA is inserted into a mechanical vector; the mechanical vector allows the DNA to be inserted into the DNA clone for use in the host.
Answer:
the awnser is A
Explanation:
MINIMEAMS said it first
please please please please please please please please please please
Answer:
in leaf
Explanation:
pls mark as brainliast
Which phrase describes the prime meridian?
runs parallel to the equator
is a line of latitude
is labeled at 90 degrees on a world map
divides the Western and Eastern Hemispheres
Answer:
Explanation:
its D
Answer:
d
Explanation:
hellppppp please will give brainliest
Answer:
B
Explanation:
deciduous Forest...
All energy comes from the sun
True
False
Answer:
The answer is true.
Explanation:
While many things get energy from the sun indirectly, without the sun there would be no life.
If this helped I would appreciate it if you marked me Brainliest. thank you and have a nice day!
Benefits of building dams include
А.Provides year-round water supply for irrigation and use in cities
B.Can produce electricity
С.Can control flooding downstream
D.All the choices are benefits
Answer:
D. All the choices are benefits
Explanation:
A group of people have white blood cell (WBC) counts that are from 4,500 to 10,000 WBC/ml. All cell count values in that range are equally abundant in the population. What is the mean WBC count in the population?
Answer:
7250 WBC/ml
Explanation:
The mean of any value is the average of a certain amount of given values. When this is taken into cognizance, to get the mean White Blood Cell count of the population, given two ranges, is to add and divide both together. This gives us
10,000 + 4,500 = 14,500 WBC/ml
The mean then is
14,500 / 2 = 7250 WBC/ml
Therefore, the mean White Blood Cell count in the population is 7250 WBC/ml
3
Drag the tiles to the boxes to form complete the pairs.
Match the given changes in the ecosystem to their causes.
Answer:
Explanation:
The correct matches are:
1. Greenhouse gases - Trapping of heat on Earth
When we talk about greenhouse gasses we usually just mean CO2 and methane since they have properties that enable them to trap the heat in the atmosphere. The more we pump these gasses into our atmosphere, the more heat will get stuck and the temperature of Earth will rise and that will lead to many ecosystems dying out.
2. Chemicals released in the river - Unsafe drinking water
When we release chemicals in a body of water either by accident or by not following strict regulations we run the risk of polluting the drinking water and making it unsafe for consumption. This can be because of pesticides or dangerous chemicals from factories or other places.
3. Excess usage of land for agriculture - Fragmentation of forests
When we make more land for our agricultural needs we need to remove forests. During the deforestation, they are if not destroyed then mostly destroyed and this is not something that happens only some times. This is a constant process all around the world and most of this land is being used to feed the animals that we kill for food and not food that we consume directly.
Answer and Explanation:
1.GG=TOHOE Ozone depleting substances - Catching of warmth on Earth
At the point when we talk about nursery gasses we generally mean CO2 and methane since they have properties that empower them to trap the warmth in the environment. The more we siphon these gasses into our environment, the more warmth will stall out and the temperature of Earth will rise and that will prompt numerous biological systems ceasing to exist.
2.CRITR=UDW Synthetic compounds delivered in the stream - Dangerous drinking water
At the point when we discharge synthetic compounds in a waterway either unintentionally or by not after severe guidelines we risk contaminating the drinking water and making it risky for utilization. This can be a direct result of pesticides or perilous synthetic substances from processing plants or different spots.
3.EUOLFA=FOF Overabundance use of land for farming - Discontinuity of backwoods
At the point when we make more land for our rural necessities we need to eliminate timberlands. During the deforestation, they are in the event that not annihilated, at that point generally obliterated and this isn't something that happens just a few times. This is a steady interaction all around the planet and a large portion of this land is being utilized to take care of the creatures that we slaughter for food and not food that we burn-through straightforwardly.
5.
20. Given the following scenario, choose the best answer that explains
why it happens: The blue dye in the water traveled up the petals of the
white flower.
SOMEONE PLZ HELP ME WITH THIS?!?!?
Table 1:
17 protons and 17 electrons
78 protons and 78 electrons
32 protons and 18 electrons
38 protons and 36 electrons
13 protons and 13 electrons
15 protons and 18 electrons
14 protons and 14 electrons
Table 2:
Ba2+ ion
Radon
Polonium
Tin
Selenium
Cesium
Magnesium Ion
IT WAS SUPER TOUGH!!!
Answer:
oh too hard
Explanation:
Jorge hits a drum as hard as he can, and it makes a loud sound. Then he hits the same drum with less strength, and it makes a quieter sound. Which statement best explains why hitting the drum at different strengths produces sounds at different volumes? A. The vibrations are the same at each strength. B. The vibrations are different at each strength. C. The pitch is the same at each strength. D. The pitch is different at each strengh
D is the answer
^_^
^ Above is the right answer
Why does meiosis have two stages of cytokinesis? Four daughter cells are produced so the cell needs to divide twice, The chromosomes get mixed up so the cell divides more to get them back in order, The chromosomes cross over so the cell divides to break them up, or The daughter cells are 2n so there needs to be 2 divisions.
Answer:
Unable to understand the question
Explanation:
Flea
Bird
Caterpillar
Oaktree
А
Look at the ecological pyramid above. What can you tell from this ecological pyramid?
The trophic level of the birds have a lower blomass than the trophic level of the caterpillars.
Fleas belong to the trophic level of primary producers.
The trophic level of the oak trees has the lowest biomass,
All four trophic levels contain consumers.
B
С
D
C2020
Illuminate Education in
Answer:
all of them are.
Explanation:
because all of them are produces for example the life cycle of the Caterpillar First it is a Caterpillar then he is tournd into a pupa then he is a bauterfly then it reproduces and reproduces
The stickleback at Loberg Lake are
most closely related to the stickle back
at /___ and are least closely related
to the stickleback at ___
----
Answer:hi
Explanation:
How many federal agencies are responsible for managing land resources in the United States?
Answer:
Four
Explanation:
Answer:
The answer would be 4
Explanation:
there are the blm(Bureau of Land Management), U.S. Forest Service, National Park Service, and Fish and Wildlife Service. those are the 4 federal agencies responsible for managing land resources in the U.S.
how do we water plants?
Answer:
Easy!
Explanation:
1. Fill an appropriate amount of water for the plant that you are going to water
2. Walk towards the plant
3. Water the plant evenly in the dirt until the soil looks moist
P.S. Make sure that the plant is in a spot where it is getting some type of light source so that your plant can execute photosynthesis properly
Please mark B R A I N L I E S T
Need this asap!!!
The diagram below shows part of the process of DNA transcription. Which
mRNA base will go in location 3?
A.Uracil
B.Thymine
C.Cytosine
D.Adenine
Answer:B
Explanation:
Answer: as of april 25th 2023 its D
Explanation:
thats what i got and i was right also im pretty sure that they switch the order
Q1. Of which wavelength of light do carotenoids absorb the greatest percentage?
a)400nm
b)500nm
c)600nm
d)700nm
Answer:
B. it's between 460 and 550 nm which would put 500 almost directly in the middle
Explanation:
The wavelength of light which carotenoids absorb the greatest percentage is:
B)500nmA wavelength of light is the visible light which the human eye can see. These have different wavelengths of which some are longer than the others, such as the infrared and the ultraviolet rays
A carotenoid is a type of pigment which are yellowish, orange and red and occurs in plants and algae.
As a result of this, we can see that a wavelength of light which carotenoids absorb the greatest percentage is anywhere between 460-550 nM which would fall under the range of option B
Therefore, the correct answer is option B
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Which of the following base pair sequences could be produced in DNA replication?
AGTCAT
TCAGTA
AGTCUT
TCUGIA
AGTCAT
UCAGUA
AGTCAT
CTGACG
The base pair sequence that could be produced in DNA replication is AGTCAT, UCAGUA. The correct option is c.
What are DNA sequences?The DNA sequence is the sequence or pairing of DNA bases. RNA and DNA both are genetic materials and both are made up of nucleic acids made up of deoxyribose acid and iron is made up of ribonucleic acid.
DNA and RNA both contain four bases that are joined with hydrogen bond RNA contain uracil in the place of thymine and DNA contain timing all other bases are same.
The base pairs are complementary to each other: Thymine: Adenine and cytosine: guanine.
But in RNA, it is uracil with adenine. Guanine and cytosine are the same. So the adjacent base pairs will be:
AGTCAT
UCAGUA
Therefore, the correct option is c. AGTCAT, UCAGUA
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What are some examples of endangered species
Answer:
Black Rhino/Amur Leopard/Bornean Orangutan/Cross River Gorilla
Explanation:
HELP PLEASE ASAP!!! THANKS 11. Below is a diagram illustrating how cells at the bottom of the early embryo are releasing chemicals to nearby cells:
What is the primary function of the signaling molecule?
a. facilitating cell death
b. initiating gene translation
c. regulating gene expression
d. suppressing cell division
Answer:
C. Regulating Gene Expression
Explanation:
That would be my choice because a signaling molecule is hormones
Which of the three traits considered in this film (bipedality, extensive tool use, and large brains) were present in the 3.2-million-year-old Australopithecus fossil (Lucy)?A. Lucy was a bipedal hominid with a brain size similar to that of modern humans, demonstrating that bipedality and larger brains evolved together.B. Stone tools were found in the same rock layer where Lucy was found, showing that members of this species were making and using tools 3.2 million years ago.C. Lucy was a bipedal hominid, and its discover provided evidence that bipedality preceded the evolution of a larger brain size and extensive tool use.D. Lucy had a large brain, but there is no evidence that it used tools or that it walked mostly on two legs.
Answer:
I think the answer is C
Explanation:
C
Lucy was a bipedal hominid, and her discovery provided evidence that bipedality preceded the evolution of larger brain size and extensive tool use.
How important is Lucy's discovery?It is one of the most complete fossils ever found. Because it is a very complete skeleton, compared to the fragments that are usually found, Lucy allowed scientists to better understand human ancestors and study size, shape and locomotion.
Whit this information, we can conclude that Lucy was a bipedal hominid, and her discovery provided evidence that bipedality preceded the evolution of larger brain size and extensive tool use.
Learn more about bipedal hominid in brainly.com/question/22073225
Which of the following are part of what makes up a seed? (Choose all that apply)
endosperm
seed coat
pollen tube
embryo
Answer:
embryo, seed coat, endosperm
Answer:
endosperm
seed coat
embryo
Explanation:
correct
ASAP PLZ Leon is a family doctor. in which economic sector does he work. a. Primary d. Secondary c. Tertiary d. Quaternary
Answer:
Leon's economic activity, being a family doctor, belongs to the tertiary sector of the economy (option c).
Explanation:
Professional services, such as engineers, teachers, lawyers and doctors, among others, belong to the tertiary economic sector, or services. All financial, commercial, educational, health, recreation, transportation, etc. services also belong to this economic sector.
Economic sectors are a set of activities on which the economy of a country is based, involving the flow of money and the exchange of goods and services for currency.
The economic sectors range from the exploitation of natural resources, through industrialization, to the services necessary for the development of individual, family and community life.
The other options are not correct because_
a. Primary sector is based on the exploitation of natural resources and agricultural and livestock production.
b. Secondary sector is where all the activities of industrialization, processing of natural products and manufacturing are located.
d. Quaternary sector is derived from the tertiary sector and consists of the commercialization of intangible goods, such as knowledge. Doctors do not enter this sector because part of their activity involves contact with people and performance of procedures.
Answer:
C
Explanation:
I got it right edg 2023
organic means are made up of?
Answer:
Produce can be called organic if it's certified to have grown on soil that had no prohibited substances applied for three years prior to harvest. ... Prohibited substances include most synthetic fertilizers and pesticides
Explanation:
How many protons and electrons does Iodine have?
Answer:
53 protons
SolutionThe atomic number of iodine (53) tells us that a neutral iodine atom contains 53 protons in its nucleus and 53 electrons outside its nucleus.
Explanation:
HELP PLEASE ITS TIMED
Analyze the diagram below. What process is shown?
A. Facilitated diffusion
B. Osmosis
C. Active transport
D. Endocytosis
The transport that is involved in the transportation of molecules through the transport channels called as carrier proteins or transport channels.
What is the diffusion ?
Diffusion is the movement of particles from higher concentration to the lower concentration.
“Active Transport is as process that involves movement of molecules from an area of lower concentration to an area of higher concentration against a concentration gradient or an obstacle with the help of external energy.”
1. Antiport Pumps.
2. Symport Pumps.
3. Endocytosis.
4. Exocytosis
These are the channels that are involved in the process of the active transport. Energy driven process is the process where the proteins are transported into the channels via the transporters. The transporters are the kind of the molecules that transport the molecules through the channels.
Active transport is the process that involves the use of ATP for the transport and the molecules are transported via the expenditure of energy through the ATP usage.
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