Answer:
P-Pesticides, Q- Algae, R- Oxygen
Explanation:
How do DNA and RNA differ?
Answer:
DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.
Answer:
DNA contains the sugar deoxyribose, while RNA contains the sugar ribose. DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is stable under alkaline conditions, while RNA is not stable. DNA and RNA perform different functions in humans.
Explanation:
Many male birds will expend A great deal of energy building nests. Females will mate with the males who build the best nest. This is best described as an example of ___.
a) natural selection
b) sexual selection
c) runaway selection
d) an invasive species
e) disruptive selection
Answer:
B
Explanation:
Female birds mate with the males who build the best nest is the example of option b. sexual selection.
Sexual selection is a mode of natural selection in which one sex members choose the mate with the member of the other sex for mating.
These members of the biological sex prefer opposite sex members for species-specific characteristics in individuals of the other sex such as best building nest in birds. Other male birds compete with members of the same sex to get selected by members of the female birds in this instance.Thus, the correct answer is option b. sexual selection as female birds prefers species-specific traits to select their mating partner by best nest building by males.
Learn more about sexual selection:
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fundamental molecules produced in photosynthesis is
(a) glucose (b) amino acids (c) fatty acids (d) nucleotide
glucose is the fundamental molecules produced in photosynthesis
plz mark me as brilliant answer
In ______ immunity the individual produces antibodies against particular pathogens while in ______ immunity the individual is given specific antibodies against a pathogen. Group of answer choices
Answer:
The correct answer is - active and passive.
Explanation:
Immunity is the capability of multicellular organism to protect itself from harmful molecules that are foreign to the body such as microorganism and antigens. Immunity can be active immunity or the passive immunity.
Active immunity takes place when one's own body produces antibodies to fight against a particular disease or antigen by immune system where as passive immunity occurs when an individual receives antibodies from outside and produced outside.
Thus, the correct answer is - active and passive.
Which is a primary function of a vacuole in a cell?
O A. enzyme production
O B. protein synthesis
O C. storage
D. reproduction
Answer:
C. storage
Explanation:
Vacuoles are membrane-bound sacs within the cytoplasm of a cell that function in several different ways. In mature plant cells, vacuoles tend to be very large and are extremely important in providing structural support, as well as serving functions such as storage, waste disposal, protection, and growth.
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Storage (Option C)
Explanation:-Vacuoles store dissolved materials such as amino acids, sugars, organic acids and some type of proteins.Like, In Amoeba they store the food material, ingested by the organism.Explore more:-Vacuoles are membrane bound organelles mostly found in plant and fungal cells.The term was coined by "Dujardin".The membrane of vacuoles is called tonoplast.They are enclosed compartments which are filled with water containing inorganic and organic molecules. In plant cells, they are large and occupy almost 90% of the cell. But, they are small or even absent in animal cells.⏩️ Refer to the attachment....
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Please help!
A. summer
B. autumn
C. winter
D. spring
A frog cannot keep in the classes pisces why
Answer:
because it has a four chambered heart
Answer:
hii can you be my friend dear
because of 4 chamber of heart
hope it will help you
Quick
Check
Which structures are found in both animal and plant cells? Check all that apply.
cell membrane
cell wall
cytoplasm
Golgi body
nucleus
ribosome
vacuole
Answer:the organelle which are found in both animal and plant cells are
Cell membrane
Cytoplasm
Nucelus
Golgi bodies
Ribosome and
Vacoule ( in different amount)
The structures that are found in both animal and plant cells are cell membrane, cytoplasm, golgi body, nucleus and ribosomes. The correct options are a, c, d, e, and f.
What is a cell?All living organisms and body tissues are made up of cells, which are the smallest unit that can live on its own.
A cell is made up of three major components: the cell membrane, the nucleus, and the cytoplasm. The cell membrane surrounds the cell and regulates the substances that enter and exit the cell.
Plant and animal cells are structurally very comparable because they are both eukaryotic cells.
The nucleus, mitochondria, endoplasmic reticulum, golgi apparatus, lysosomes, and peroxisomes are all membrane-bound organelles in both.
Plant cells lack centrosomes and lysosomes, whereas animal cells do. Plant cells always possesses a cell wall, chloroplasts as well as other specialized plastids, and a large central vacuole, whereas animal cells do not.
Thus, the correct options are a, c, d, e, and f.
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What is measurement? Write any two importance of it. Why do we need measurement?
Answer:
The comparison of an unknown quantity with a known established standard quantity.
any two important of it are:
a) it helps in performing scientific experiments to establish truth about a physical phenomenon.
b) It helps in performing experiment for making our daily food.
deforestation can be reduced by combined effort of all? give reason
Explanation:
Deforstation can be reduced by combined efort of all as if we combinely work together to shop deforestion and start afforestation there is a high chance of reduction of deforestation. All people together can start afforestion in sense the deforestion awarness would be raised and everyone would stop deforesting and start afforesting.
write five example of bodies which are at rest
Answer:
1. A person sitting on a chair.
2. Water in a bucket.
3. Bus without a driver.
4. Electric fan without electricity.
5.Car without engine.
Rigor mortis occurs because ________. Group of answer choices proteins are beginning to break down, thus preventing a flow of calcium ions sodium ions leak into the muscle causing continued contractions the cells are dead no ATP is available to release attached actin and myosin molecules
Answer:
.
Explanation:
.
Which of the following processes would be an example of an anabolic pathway?
A set of coupled reactions that are exergonic
A set of reactions that break covalent bonds between molecules to release free energy
A set of reactions that release energy that can be used to drive cellular work
A set of reactions that combine monomers into larger, more energy-rich polymers
Answer:
A set of reactions that release energy that can be used to drive cellular work
Explanation:
I think im not so sure!!
Answer:
The answer is
D - a set of reactions that combine monomers into larger, more energy-rich polymers
Explanation:
I can't explain it, I just know I'm right!
In humans, the ability to roll up the sides of the tongue into a U-shape is controlled by one gene. Ability to roll the tongue is dominant to the inability to roll it. If two people who can roll their tongues each had one parent who could not, what is the probability that they will have a child who cannot roll his/her tongue
Answer:
25%
Explanation:
male
can roll tongue - cannot roll tongue
female
can roll tongue - cannot roll tongue
If they have a child, the possible combinations are:
1)
father's gene: can roll tongue
mother's gene: can roll tongue
RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE
2)
father's gene: can roll tongue
mother's gene: cannot roll tongue
RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE
3)
father's gene: cannot roll tongue
mother's gene: can roll tongue
RESULT = THE CHILD WILL BE ABLE TO ROLL HIS/HER TONGUE
4)
father's gene: cannot roll tongue
mother's gene: cannot roll tongue
RESULT = THE CHILD WILL NOT BE ABLE TO ROLL HIS/HER TONGUE
Variation in rates of cell division is regulated by a cell-cycle control system—a group of molecules, mostly proteins, within a cell that coordinates the events of the cell cycle. This control system functions through a system of checkpoints. Which assessment occurs at the G2/M checkpoint?
Answer:
See the answer below
Explanation:
At the G2 checkpoint, the accuracy of chromosome replication is assessed along with the cell size and proteins within the cell. The cell division will only proceed if all the listed conditions appear all right.
At the M checkpoint, the correct attachment of spindles to the kinetochores of the sister chromatids of each chromosome is assessed. This is to ensure that chromosomes are correctly separated to the opposite poles of the cell.
what are the functions of protein
Answer:
Explanation:
7 Important Functions of Protein in Your Body
Causes Biochemical Reactions. ...
Acts as a Messenger. ...
Provides Structure. ...
Maintains Proper pH. ...
Balances Fluids. ...
Bolsters Immune Health. ...
Transports and Stores Nutrients.
about plant kingdom
• Which category of energy interested you the most? Choose from one of the following: fossil fuels, nuclear energy, biomass, hydropower, solar energy, geothermal energy, or wind energy.
Answer:
nuclear energy
Explanation:
coz nuclear energy are awesome
Im interested in solar energy.
The career area that is interesting is pure research into new science.
How does a scientist use solar energy in pure research to develop new ways in science?
What is pure research?
How can a scientist get solar energy?
What does a scientist do in pure research?
When do scientist know they found a new way?
How can they propose the new way of science?
Interviews
Wikipedia
News
Web
Magazines
If the study on the relationship between W. bancrofti and Wolbachia is correct, then combined with the results of the trials, significant numbers of microfilariae do not survive in circulation beyond what time period
Answer:
6 months
Explanation:
First, we must remember that doxycline has an effect only on nematodes, but it cannot effectively prevent microfilariae presented before treatment in the blood of the infected. What we can conclude from this is that it is possible that microfilariae grow and develop, however they will not be able to reproduce, since W. bancrofti is completely dependent on Wolbachia for replication. With that, the microfilariae are running out of time and with about 6 months the patients are free of any trace of microfilariae. So we can conclude that 6 months is the longest time that microfilariae survive in circulation.
. Which is a likely location for primary succession? grassy hillside newly mowed field forest floor large boulder
Answer:
A likely location primary succession is a large Boulder.
Explanation:
primary succession begins on Rock formations, such as volcanoes on mountains, or in a place with no organisms or soil.
all members of the plant kingdom contains chlorophyll? true or false
Answer:
this is true
Explanation:
if it isnt in the leaves of a plant, then its in the stem, or maybe, the entire thing is green!
flowers have green stems, trees have green leaves, lily pads are green, etc.
hope this helped
Answer:
True
Explanation:
All plants contain chloryphyll
water pollution is bad because
(a) is difficult to prevent
(b) is a natural consequences of farming
(c) is difficult to detect
(d) harm living things
Answer:
d harming living things.
Answer:
It harm living things
Explanation:
Because if a water is polluted it harm living things
Describe how the chemical bonds in unsaturated fatty acids make them more suited for cell
membranes than saturated fatty acids.
Answer:
Unsaturated fat, a fatty acid in which the hydrocarbon molecules have two carbons that share double or triple bond(s) and are therefore not completely saturated with hydrogen atoms. Due to the decreased saturation with hydrogen bonds, the structures are weaker and are, therefore, typically liquid (oil) at room temperature .
Some fruit flies have orange eyes and others have red eyes.
If two orange-eyed fruit flies are crossed, their offspring always have orange eyes.
If two red-eyed fruit flies are crossed, their offspring sometimes include both orange-eyed and red-eyed flies.
What can be concluded from these observations?
Answer:
not 100% sure but
Explanation:
might be because each fruit fly has a different eye color because offspring from parents will have different eye color. or it might be from some sort of mutation that happened, that might be why they still have the gene to orange eyes. or red eyed fruit flys(or fly) migrated into a orange eyed populating and had offspring like that, that would also explain why red eyed fruit flys have the orange eyed gene.
again not 100% sure
but I hoped it helped a little
what is the body structure for chemical levels?
Answer:
Cellular, tissue, organ, organ system, and the organism level.
Explanation:
The structure labeld as x is the
Explanation:
The structure labeled as x is the
nucleus.Hope this helps.. Good luck!!
Answer:
The structure labeled as x is the nucleus.
Always use the gross adjustment knob before using the fine adjustment knob when focusing on the microscope 1 2 False True
is there any evidence to prove that the earth is spherical
Answer:
physics.
Explanation:
Answer:
Satellites
Explanation:
Satellites take images and they launched a camera up to the moon and captured what the earth look liked
Which best explains a desirable outcome for energy efficiency? A) a low second law efficiency due to use of a low efficiency furnace B) a high second law efficiency due to use of a low efficiency furnace C) a high second law efficiency due to use of solar panels on the house D) a low second law efficiency due to use of solar panels on the house
Answer:
C. a high second law efficiency due to use of solar panels on the house.
Explanation:
Second Law efficiency is the rational efficiency that computes the effectiveness of the system relative to its performance. The efficiency measure is the increase in output with the same level of input. Energy efficient system are high second law efficiency. They save electricity and use alternative sources like, solar panels, wind energy and others.
what modification do we find in the steam and petiole of the aquatic plants
Answer:
Explanation:
Modification Definition Example
1) Tendrils The leaves are modified into slender wiry and
coiled structures called leaf tendrils and support climbers to climb Pisum Sativum
2) Spines The leaves modified into a pointed structure and usually protect them from herbivores. Opuntia
3) Phyllode It is a green extended structure formed by the modification of petiole or rachis of leaf that carries out photosynthesis. Acacia
4) Storage leaves Leaves become fleshy due to storage of water and food material. Aloe
5) Cotyledons The mature embryo shows either one or two cotyledons. Angiosperms and gymnosperms
6) Leaf bladders Some of the leaves of aquatic plants modified into leaf bladders to trap small insects. Utricularia
7) Leaf Pitcher Lamina of the whole leaf is modified into a lid known as a pitcher which traps insects to fulfil the need of nitrogen. Nepenthes