Answer:
equilibrium
Explanation:
The landing of pollen on the stigma is followed by the growth of the pollen
tube towards the ovule. The pollen tube growth is guided by chemicals released from the pistil of the female flower. What is this type of growth in
the direction of chemicals called?
• positive chemotropism
• negative phototropism
• positive phototropism
Answer:
positive chempotesiem
Explanation:
What is complementary base pairing? Explain why complementary base pairing is necessary to maintain the double helix shape of the DNA molecule.
Answer:
A complimentary base pairing is how adenine can only bond with thymine and how guanine and cytosine through hydrogen bonding. It is necessary to maintain the double helix shape. Because it is opposite, that is why the DNA is that shape. It is anti parallel due to the Complementary base pairing.
Adenine can only bond with thymine and guanine with cytosine via hydrogen bonding. It's important to keep the double helix shape. Complementary base pairing causes antiparallelism.
Why complementary base pairing is necessary?Base pairs linked to a sugar-phosphate backbone form the double helix structure of DNA.
DNA is composed of four nitrogenous bases: thymine, adenine, guanine, and cytosine. Guanine and cytosine are linked by three hydrogen bonds, while adenine and thymine are linked by just two. The term for this is complimentary base pairing.
Complementary base pairing is critical for the formation of the helical helix of DNA because it permits the base pairs to be organized in the most energetically favorable manner. It is also essential for replication since it permits semiconservative replication.
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Cape Canaveral, Florida is where much of the worlds space exploration takes place. Geographically, this location was well suited to become America's spaceport. There are several reasons this is such a good location. It was not highly populated and is flat land facing the ocean. Railroads and ships were able to bring in the materials used to build the launch pad and space station. All of the following are contributions of the Space Center for Florida except which one? A) Education programs flourished. B) Thousands of new workers moved to the state. C) Factories manufacturing space products started all over the state. D) All the money that came into the state was used for space research.
Answer:
I think the answer is B
Explanation:
The diagram below shows the Moon's orbit around Earth. Letters A, B, C, and D represent four positions in the Moon's orbit.
What is the approximate length of time it takes the Moon to travel from position A to position C?
1 day
14 days
28 days
31 days
Answer:
14 days is the correct answer. Since it takes 27(approx) days to complete one revolution of the earth and will take (27/2=14) days to complete half of the revolution I.e. A to C.
The orbit of the Moon around Earth is shown in the diagram below. Four locations in the Moon's orbit are represented by the letters A, B, C, and D.
How long does it typically take the Moon to move from position A to position C?
The Moon takes 28 days to go from location A to position C, which is a rough estimate. The Moon is at perigee, or its closest point to Earth, at position A. The Moon is at its apogee, or furthest point from Earth, at location C. Even though the Moon's orbital speed varies, it does take about 28 days to go from perigee to apogee. The Earth's orbit around the Sun and the Moon's orbit are both inclined.
This indicates a tilt between the orbital planes of the Earth and the Moon. The Moon's location with relation to the Sun consequently shifts throughout time. The Moon appears to "wax" and "wane" in the night sky because of this. The 28-day synodic period of the Moon accounts for the Moon's shifting positions with respect to the Sun.
Therefore, it may be concluded that it takes the Moon 28 days to roughly travel from place A to position C. This is due to the Moon's relatively slow orbital motion, which takes around 28 days to complete from perigee to apogee and from one place in relation to the Sun to another.
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how many alleles control a mendelian trait such as pea seed color
A one
B two
C three
D four
Answer:
B. Two alleles control a Mendelian trait such as pea seed color
Explanation:
what are liquid fats called
Answer:
The answer is Lipids .
Explanation:
Lipids is a liquid form of fats.
Answer:
Oils
Explanation:
Liquid fats (often called oils), obtained mainly from plant or fish sources, have a high percentage of unsaturated fatty acids. Except Coconut Oil.
Hope it helps...
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Biology 1
Formative Assessment #10
SC 912L 15.8
10. Early Earth was an extremely hot violent place of volcanic eruptions, collisions with
objects from space and deadly gasses. This was not a place for living organisms. Not til
the Earth began to cool did the possibility of life emerge. Which of the following was the
most likely trigger for life on Earth?
4. direct sunlight
B appearance of water
C. decrease in methane gas
D. increased carbon dioxide
Answer:
appearance of water
Explanation:
this is because most organisms need water
Answer:
C. decrease in methane gas
pls help (ASASP)
This is the simplest invertebrate animal. Most are asymmetrical and reproduce either through asexual means or through internal, self-fertilization because most are hermaphrodites.
Answer:
whales I maybe wrong
Explanation:
Environmental agencies throughout the world believe that humans have forced Earth out of its natural cycle. Consider the choices below as possible sources of empirical evidence for anthropogenic climate change. Which choice does not support this view?
Answer:
Human activities increases the concentration of oxygen in the atmosphere.
Explanation:
Human is not responsible for the balance of oxygen gas in the atmosphere because human takes oxygen from the environment for the production of energy in the process of respiration. Plants are the key factor for maintaining the oxygen concentration in the atmosphere. Human activities are the main reason of increasing carbon-dioxide and other harmful gases in the atmosphere and increases the air pollution and change in climate occurs.
Answer:D
Explanation: i took dat bih
9
Which is the basic functional unit of life?
organism
organ
tissue
cell
Answer:
cell
Explanation:
The cell is the basic structural and functional unit of life. Cells are independent, single-celled organisms that take in nutrients, excrete wastes, detect and respond to their environment, move, breathe, grow, and reproduce.
Answer:
D.) Cell
Explanation:
On Edge 2020... just took test!
Number the steps (1-6) of Transcription to order the events in the correct sequence. (Worth 50 points)
____ The DNA “rezips,” reforming the original complementary cross-strand
bonds
____ The DNA and messenger RNA strands separate from one another and the
RNA leaves the nucleus
____ Helicase “unzips” the DNA-RNA hybrid
____ RNA polymerase joins the new RNA nucleotides into a single strand
____ Helicase “unzips” the DNA, opening the two strands of the double helix
____ Free RNA nucleotides make complementary pairs between their own
nitrogenous bases and the attached bases of the single DNA template
strand.
Answer:
6, 5, 4, 2, 1, 3
Explanation:
Transcription refers to the process of the formation of RNA molecules from DNA molecules using DNA strands as a template.
Only one strand out of two DNA strands is involved in the process and the strand is known as coding strand which runs in the direction of 5' to 3'.
The process of transcription takes place in the following sequence:
1. Helicase enzyme binds to the DNA and unzips the two strands of DNA. This opens the helices of the DNA and the DNA gets open.
2. RNA polymerase binds to the promoter attached to the DNA and forms the single strand.
3. The RNA nucleotides form complementary base pairs with the DNA and the RNA strand. A new complementary strand is made using complementary base pairing.
4. DNA helicase unzips the DNA and RNA hybrid.
5. The DNA and RNA get separated and the mRNA molecule formed in the nucleus exits the nucleus.
6. The two-strand of DNA is again joined via complementary base-pairing rule.
Answer:
Explanax
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tion:
Predict the likely effect on the ability of substance L to enter the cells if substance L is attached to a large protein instead of free in the
culture.
Answer:
Since the cell membrane is semi-permeable, the likelihood of substance L entering the cell attached to a large protein is lower than that of substance L free in the culture. Substance L enters the cell membrane through active transport, but the cell membrane may block the larger protein, thus blocking substance L, if it is attached to the large protein.
Explanation:
During cellular respiration, which of the following is equal to the total number of carbon, hydrogen, and oxygen atoms in water and carbon dioxide?
Number of carbon, hydrogen, and oxygen atoms in glucose
Number of carbon, hydrogen, and oxygen atoms in oxygen gas
Total number of carbon, hydrogen, and oxygen atoms in glucose and oxygen
Total number of carbon, hydrogen, and oxygen atoms in hydrogen gas and oxygen
Answer:
number of carbon hydrogen and oxygen atoms in oxygen gas
Explanation:
If you disagree with a point a discussion partner is making, it is usually a good idea to:
A. change the subject.
B. enlist others to join your effects
C. repeat your argument
D. ask verifying questions
Answer:
D. ask verifying questions
Explanation:
they would be a better solution instead of changing the subject or repeat the argument all over again.
What characteristic makes a social group eusocial?
Answer:
Eusociality (from Greek εὖ eu "good" and social), the highest level of organization of sociality, is defined by the following characteristics: cooperative brood care (including care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labor into reproductive and non.
Explanation:
Answer: Eusociality (from Greek εὖ eu "nice" good and social), the highest level of organization of sociality, is defined by the following characteristics: cooperative brood care (including care of offspring from other individuals), overlapping generations within a colony of adults, and a division of labor into reproductive and non.
1-True or False: Human activities such as nitrogen fertilizer can upset the balance of the nitrogen cycle.
True
False
Answer:
True because it disturbs the balance of the soil.
: This is an organ of the central nervous system, which has three distinct parts that control and coordinate the activities of the body. The cerebrum controls thoughts, voluntary actions, and the sensations related to the five senses. The cerebellum helps with balance and coordination. The stem controls vital and involuntary processes like breathing and your heart beating.
Answer:
the brain.
I am not sure if this is what the question wanted but that is a description of the brain.
Explain negative feedback mechanism
Answer:
The negative feedback mechanism is a reaction that causes a decrease in function inside a human's body and reduces the fluctuations in the output.
Explanation:
2. Predict the oxygen level in a pond.
A The amount of oxygen dissolved in the water stays pretty even over a one year period.
B The water is too deep for plants to grow on the bottom, making it oxygen rich.
C Oxygen levels are high in the summer while the sun is shining and plants are
photosynthesizing, but they can drop in the winter.
D None of the above.
Answer:
C
Explanation:
oxygen levels are high in the summer while the sun is shining and plants are photosynthesizing but they can drop in the winter
The human body contains many glands, including the pituitary, thymus, and thyroid. The table below shows the functions of two of these glands. Function 1. Associated with the immune system and is largest in size during teenage years 2. Produces hormones which are required for growth and various body functions Which of the following matches correctly the names of the glands with their functions? Group of answer choices Pituitary—Function 1; Thyroid—Function 2 Thyroid—Function 1; Thymus—Function 2 Thymus—Function 1; Pituitary—Function 2 Pituitary—Function 1; Thymus—Function 2
Answer:
The answer is B
Explanation:
I had did research on both explanations and Thymus is 1st and Pituitary is 2nd. I had looked this question up and yours is a bit different then mine, but I thought I'd stop and help you. :)
Answer:
B
Explanation:
im doing the test now
How does increased sediment loads adversely affect coral reefs?
A- sediment reduces photosynthesis by zooxanthellae
B- nutrients stimulate zooxanthellae growth
C- sediment makes corals Brittle
D- sediment lowers oceanic pH
E- sediment kills parasites
Elijah likes the roses in his cousin’s garden. He decides to take the leaves from his cousin’s plant and connect them to his plant, which will result in the growth of a new rose plant. What method of plant propagation did Elijah use?
A.
cutting
B.
air layering
C.
tip layering
D.
mound layering
E.
grafting
Answer:
its cutting
Explanation:
ASAP WILL GIVE BRAINLIEST
The image below shows how wolves and dogs compare to some other animals in the levels of classification.
Based on the chart, how are fish and dogs related?
They belong to the same kingdom but different phyla.
They belong to the same phylum but different classes.
They belong to the same kingdom and class.
They belong to the same phylum and class.
Answer:
B.
Explanation:
Answer:
Was it b?
Explanation:
List eight factors that contribute to desertification.
Answer:
include urbanization, climate change, overuse of groundwater, deforestation, natural disasters, and tillage practices in agriculture that place soils more vulnerable to wind.
Explanation:
How are the blunt and sharp pipettes
used in the cloning process?
(please answer in simple words i don't even understand the question)
Answer:
During the process of the type of cloning known as Somatic Cell Nuclear Transfer (SCNT), once the nucleus is removed from the egg cell, blunt and sharp pipette both are used. The purpose of the blunt pipette is to hold the egg cell in position whereas the sharp pipette penetrates the cell to take the nucleus out by sucking it - a process known as "enucleation". This nucleus is discarded. Rather, this nucleus is replaced by a nucleus taken out from a somatic cell (same way as described before) of the same organism.
Hope that answers the question, have a great day!
Please help ASAP for 10pts
In which population would reproducing asexually be most
advantageous?
A population living in a changing environment
- A population too large for the available resources
A population heavily hunted by many different
types of predators
A population living successfully in stable
environmental conditions
Answer:
A population heavily hunted
Explanation:
They die to quick to meet another of their kind and not reproduce
Sarah adds 10 g of baking soda to 100 g of vinegar. The mixture begins 20
to bubble. When the bubbling stops, Sarah finds the mass of the resulting
mixture. She determines its mass is 105 g. The data she collected is in the
table. Does this follow the law of conservation of mass? Explain.
Answer:
Yes, the reaction between baking soda and vinegar follows the law of conservation of mass.
Explanation:
The table and data was not attached to the question.
When baking soda and vinegar are mixed together, a chemical reaction occur resulting to release of gas (carbon dioxide gas)
Law of conservation of mass states that the total mass of the reactants in a chemical reaction must be equal to the total mass of the products.
That is mass of reactant = mass of product = 100g + 10g = 110g
Sarah got 105g as product because a gas of mass 5g was released during the reaction.
Sarah found the mass of the resulting
mixture without including the mass of the released gas.
A way to account for the mass of the gas is if the experiment is done in a closed system like zip lock bag to collect and account for the mass of the gas.
When this is done, the law of conservation of mass would be proven.
PLSSSSS MARKING BRAINLIST
Help check my work
Just tell me if it's right or wrong , if it's wrong can you pls tell me
(science)
Explanation:
I think this is a right answer
Which plant or plant part is a source of edible oils?
A.
wheat
B.
kidney beans
C.
sunflower
D.
rice
E.
cottonseed
Answer:
kidney beans is correct
Explanation:
