Answer:
Upon germination, the tube cell forms the pollen tube through which the generative cell migrates to enter the ovary. During its transit inside the pollen tube, the generative cell divides to form two male gametes (sperm cells). Upon maturity, the microsporangia burst, releasing the pollen grains from the anther.
Please help me! This a timed assignment I have 19 mins left.
Answer:
I believe that everything other than the creation of the egg should be asexual.
Explanation:
Sexual reproduction invloves two parents, and none of the other options seem to include two parents.
A) Which of the following processes put carbon INTO the atmosphere? And which of the following processes take carbon OUT of the atmosphere? (Select all that apply)
photosynthesis
cellular respiration
combustion
consumption
CO2 exchange
decomposition
Answer:
photosynthesis is the answer
chewing that involves up/down, forward/backward, and side-to-side movements of the mandible is also known as Rotary chewing.
True or False?
Answer:
True
Explanation:
In the temporomandibular joint, there are two kinds of movements: rotation and translation.
Rotation is the movement around an axis. It is the movement of an object around its axes.
The mandibular rotation movement occurs in the condyles and might be produced in three planes: horizontal plane, frontal, and sagittal planes.
- Sagittal Plane: There are up/down, forward/backward movements involved.
- Horizontal Plane: These are lateral movements together with back and foward movements.
- Frontal: Involves up/down, and lateral movements.
2. Enzymes are
responsible for what kind of digestion?
Answer:
Chemical digestion could not take place without the help of digestive enzymes. An enzyme is a protein that speeds up chemical reactions in the body. Digestive enzymes speed up chemical reactions that break down large food molecules into small molecules.
Answer:
Enzymes are responsible for speeding up the chemical reaction for breaking down large food molecules into smaller molecules.
Explanation:
Draw the stages of mitosis
Answer:
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Weather and climate are affected by ocean currents because they
A. are caused by Earth’s rotation.
B. cause upwellings along certain coastlines.
C. move large volumes of water vertically in the deep ocean.
Answer:
C.
Explanation:
What causes currents in the ocean.Winds, water density, and tides all drive ocean currents. Coastal and sea floor features influence their location, direction, and speed. Earth's rotation results in the Coriolis effect which also influences ocean currents.Ocean currents act as conveyer belts of warm and cold water, sending heat toward the polar regions and helping tropical areas cool off, thus influencing both weather and climate.The tropics are particularly rainy because heat absorption, and thus ocean evaporation, is highest in this area.
write and explain about the sexual development at the puberty
Answer:
Sexual development. includes not only the physical changes that occur as children grow, but also the sexual knowledge. and beliefs they come to learn and the behaviors they show. Any given child's sexual knowledge.
Explanation:
How do parents' traits predict the offspring? (Explain)
Answer:
A trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. If a gene pair contains a dominant allele, then the offspring will show this dominant trait.
What process uses atomic particles of carbon and uranium to determine exact age?
Answer choices
A. Radioactive dating
B. Law of superposition
C. Relative dating
D. Geologic time
Answer:
A.
Explanation:
hope this helps! );D;)
Answer:
A
Explanation:
Radioactive dating
BRUH
HURRY ILL GIVE BRAINLIEST
You would trust the book written by the historian, because its most likely going to be written using facts. Unlike the movie where it was written and made not to inform but to entertain, and they most likely put non-factual information in the movie to make it more interesting.
Answer:
it makes it interesting because it is a historical movie
B.
Consider the image of the male reproductive organs. Where is the diagram would sperm be produced?
A)
А
B)
E
F
D)
Answer:
A
Explanation:
The same as eggs being produced in the ovaries in a female, the balls of a male are like ovaries which produces the sperm in men.
dominant genes mask recessive genes are represented by lower xase letters are only inherited from the male parent are masked by recesive genes
Answer:
Dominant genes mask recessive genes.
Explanation:
Alleles are different variations of a gene. Every person has two alleles - one from each of their parents. Depending on whether it is expressed, an allele can be dominant or recessive.
A dominant allele is the one that is expressed even if the individual has one dominant and one recessive allele. This means that dominant alleles mask recessive alleles.
An example of a dominant allele is the one for brown eyes. This means that you need only one allele of this type to have brown eyes, which is why brown eyes are the most common.
f today's first high tide is at 7:00 AM, what time will today's next high tide be?
plz help first one to answer correctly, 5 star, thx, and brainliest.
Answer:
7PM
Explanation:
It looks like a high tide comes in every 12 hours from the last one.
What does X most likely represent?
Answer:
A
Explanation
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1. At which point is cool air circulating beneath warm air?
Answer:
A cold front and warm front meet with high level, grey clouds. Item B: Warm air is above cold and very cold air, lower clouds with rain falling.
What would happen to an organism if the enzymes that break down lipids were denatured?
Answer:
It will change shape and the substrate will no longer fit
Explanation:
if the enzymes that break down lipids were denatured, it will change shape and the substrate will no longer fit.
What are enzymes?Enzymes are proteins that act as biological catalysts by accelerating chemical reactions. The molecules upon which enzymes may act are called substrates, and the enzyme converts the substrates into different molecules known as products.
Moreover, enzymes are proteins that help speed up metabolism, or the chemical reactions in our bodies. They build some substances and break others down. All living things have enzymes. Our bodies naturally produce enzymes.
Hence, enzymes create chemical reactions in the body, and can actually speed up the rate of a chemical reaction to help support life. Enzymes are produced naturally in the body and help with important tasks, including: building muscle. destroying toxins.
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How does crossing over increase variation in genes?
When cells divide during meiosis, homologous chromosomes are randomly distributed to daughter cells, and different chromosomes segregate independently of each other.
Approximately how long has the victim been dead if his body temperature was 93.2?
Answer:
Approximately 5 hours
Explanation: The body is still warm, so it couldn't have been very long
What should be done before measuring an unknown pH of a solution using a pH meter?
Before measuring the pH of an unknown sample, the pH meter should be calibrated by putting in the buffer solution, and then only it can show the correct result of the sample that needs to be tested.
What is pH?pH explains and shows the result of the hydrogen ion concentration in the solution; the higher the concentration of hydrogen ions, the lower the pH. This is called acid in nature. The lower the concentration of this ion, the more value it shows and the more likely it is to be considered a basic solution.
The neutral value is 7, while the range above it is classified as basic and the range below it as acid. The pH of an unknown sample can be determined by using pH paper or a pH meter, but the pH meter is more accurate for the sample. The PH meter is first calibrated and put in the buffer mixture to get accurate data. Then it is inserted into the target solution.
Hence, the pH meter should be calibrated by putting in the buffer solution, and then only can it show the correct result of the sample that needs to be tested.
Learn more about the PH here.
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___ have the highest brain to body mass ratio of all large animals
A) Chimpanzees
B) Dolphins
C) Humans
D) Sharks
I’m stuck between humans and dolphins please help me with the right answer
Answer:
Dolphins
Explanation:
It is known that Dolphins are almost as intelligent as humans or even more so but yes dolphins have a higher brain to body mass compared to humans
p.s.
if your unsure you can use google or other sources, but it is dolphins trust me
What is the acceleration? –0.4 m/s2 –0.2 m/s2 0.2 m/s2 0.4 m/s2
Answer:
the answer is c
Explanation:
Answer:
C. 0.2 m/s2
Explanation:
on edge
Look at the diagram of a solar eclipse.
A solar eclipse with labels 1 through 4. 1: The moon. 2: A location on Earth directly in line with the center of the Sun and Moon. 3: A location above 2. 4: A location below and right of 2.
At which location is the solar eclipse viewed in totality?
Answer:
2
Explanation:
It is at the center of the area that gets to most attention.
At location 2 the solar eclipse will be viewed in totality. Therefore, at this point, the solar eclipse will be clearly visible.
What is a solar eclipse?A solar eclipse is a natural phenomenon which occurs when the Moon moves in front of the Sun and blocks some of Earth's view of it, either completely or partially. A similar arrangement happens roughly every six months, during the new moon phase of eclipse season, when the Moon's orbital plane is closest to the Earth's orbital plane.
In the case given here, at point 2 the eclipse will be visible clearly as the moon is precisely aligned between the earth and the sun at that location due to which the eclipse is focussed at that point.Therefore, the correct location is 2.
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The question is incomplete, but most probably the complete question is,
Look at the diagram (attached below) of a solar eclipse.
A solar eclipse with labels 1 through 4. 1: The moon. 2: A location on Earth directly in line with the center of the Sun and Moon. 3: A location above 2. 4: A location below and right of 2.
At which location is the solar eclipse viewed in totality?
What effect does reusing or recycling municipal have on environmental resources?
A. Introduction of pollutants into water systems
B.increasing deforestation of local areas
C.increased use of fossil fuels
D.Preservation of raw materials
B. increasing deforestation of local areas
All rocks began as what type of rock?
A. sedimentary
B. metamorphic
C. igneous
Answer:
C. Igneous
Explanation:
PLEASE HELP :(((
Suggest how the products of digestion
move into the blood.
a) diffusion
b) active transport
and pls explain why
Without mutations, there would not be ____. A. identical offspring. B. increase in populations. C. genetic diversity. D. increase in DNA.
I need answer ASAP
Answer:
C
Explanation:
Mutations often changes ones inner and outer features which creates genetic diversity.
I hope this helps :) Have a good rest of your day!
Why do producers remove carbon from the atmosphere?
It is used in decomposition
It is used in photosynthesis
It is released from burning fossil fuels
They do not remove carbon from the atmosphere
How propanoic acid is convert to propanol?
Answer:
Propanoic acid reacts with LiAlH4 / ether to give propanone
Which of the following would be an example of an ecoregion?
A. Antartica
B. A backyard
C. The United States
D. A small section of the Mississippi River
Answer: The correct answer is A. Antarctica
Explanation: This answer has been confirmed correct.
An ecoregion is defined as an area where the land is different than the neighboring regions. Only Antarctica meets that criteria.
When molecules move from areas of high concentration to areas of low concentration
Answer:
the answer is passive transport