Answer:
dcgfbhnjbhvgcfxfcgvm
Explanation:
How does the nervous system help the urinary system in excretion
Answer:
For the urinary system to do its job, muscles and nerves must work together to hold urine in the bladder and then release it at the right time. Nerves carry messages from the bladder to the brain to let it know when the bladder is full.
Explanation:
Fungi reproduce most commonly viafragmentation.budding.spores.binary fission.
Answer: spores
Explanation: Most fungi reproduce by forming spores that can survive extreme conditions such as cold and lack of water. Both sexual meiotic and asexual mitotic spores may be produced, depending on the species and conditions. Most fungi life cycles consist of both a diploid and a haploid stage.
Answer:
spores
Explanation:
correct on pf
List some of the biotic and abiotic factors that exist in the eco system. (Picture below)
EXPLANATION/ANSWER:
Biotic factors: things that are living
• grass
,• impala
,• ticks
,• seed-eating bird
,• locust
,• scorpion
,• hawk
,• tick bird
,• snake
,• baboon
,• leopard
,• hyena
Abiotic factors: things that are non-living that affect the living
• soil
,• sunlight
,• temperature
,• water
Explain the relationship between cancer, cell cycle checkpoints, and
apoptosis.
Answer:
Checkpoints are mechanisms that regulate progression through the cell cycle ensuringinsuing that each step takes place only once and in the right sequence. Mutations of checkpoint proteins are frequent in all types of cancer as defects in cell cycle control can lead to genetic instability.
Explanation:
would it be
A
B
C
D
only if you actually know it!
Answer:
Meadow Plants Would Decrease And Rabbits Would Decrease.
Explanation:
As we see in the food chain, the me adow grass is what the rabbits consume. If there is a wildfire, the grass would burn, leaving the rabbits with bothing to eat, causing a decrease in their population.
Hope this helps!
What effective control measures would you recommend to these farmers against nematode parasites?
Answer:
Nematode parasites can cause significant damage to crops and reduce yield, so it is important for farmers to take effective control measures. Here are some recommendations that farmers can consider:
1. Crop rotation: Farmers can rotate their crops with non-host plants to break the nematode life cycle. This helps to reduce the population of nematodes and prevent them from building up in the soil.
2. Soil solarization: This involves covering the soil with a clear plastic sheet during the hot summer months to increase the temperature of the soil and kill nematodes.
3. Biocontrol agents: Certain predatory microorganisms and beneficial nematodes can be effective in controlling plant parasitic nematodes. These biocontrol agents can be applied to the soil to help suppress nematode populations.
4. Nematicides: Chemical nematicides can be used to kill nematodes, but they should be used judiciously as they can have negative environmental impacts and may harm other organisms in the soil.
5. Sanitation: Farmers should practice good sanitation practices such as removing infected plant debris and cleaning tools and equipment to prevent the spread of nematodes.
6. Resistant varieties: Planting resistant crop varieties can help reduce the damage caused by nematodes.
7. Soil improvement: Maintaining soil health through practices such as adding organic matter can improve soil structure, fertility, and water-holding capacity, making it less hospitable to nematodes.
By implementing these control measures, farmers can effectively manage nematode infestations and protect their crops from damage.
Answer:
Explanation:
ome effective control measures against nematode parasites, such as crop rotation, use of resistant crop varieties, biological control methods, soil solarization, and chemical control using nematicides. Here are some links for further reading:
Brainliest pls
Explain the reason the Type AB and Type O blood phenotypes always have the same
genotype, whereas the Type A and Type B blood phenotypes have two possible allelic
combinations.
Answer:
Because A is co-dominant to B and O is recessive, so the genotype is the same as the phenotype. But A can have 2 genotypes because A can mask a recessive allele, which makes the phenotype A. B can also mask a recessive allele, which makes the phenotype B.
Examples
AO (genotype) = A (phenotype)
BO (genotype) = B (phenotype)
In your own words, describe the ATP/ADP cycle and explain why it is an important, frequent event
in cells?
Explanation:
ATP (Adenosine tri-phosphate) is an important molecule found in all living things. Think of it as the “energy currency” of the cell. If a cell needs to spend energy to accomplish a task, the ATP molecule splits off one of its three phosphates, becoming ADP (Adenosine di-phosphate) + phosphate. The energy holding that phosphate molecule is now released and available to do work for the cell. When the cell has extra energy (gained from breaking down food that has been consumed or, in the case of plants, made via photosynthesis), it stores that energy by reattaching a free phosphate molecule to ADP, turning it back into ATP. The ATP molecule is just like a rechargeable battery. When it’s fully charged, it’s ATP. When it’s run down, it’s ADP. However, the battery doesn’t get thrown away when it’s run down–it just gets charged up again.
2. An enzyme was isolated from wild-type bacteria (WT). Three mutant forms of this same enzyme were made using a mutagenesis technique, and then each mutant enzyme (1E8, 5F8, D249G) was isolated. All four samples of purified enzymes were tested for thermal stability. To do this, each enzyme was incubated at the temperatures indicated on the graph for 15 minutes and then tested for the percentageof original catalytic activity that remained after the heat treatment. Describe the effects of the mutations on the thermal stability of the wild-type enzyme. Analyze the data to rank the four in order from least heat-stable to most heat-stable. (3 points)
Based on the graph , it is evident that the three mutant chemicals (1E8, 5F8, D249G) have lower warm soundness than the wild-type (WT) protein. At all temperatures tested, the WT chemical held a better rate of its unique catalytic movement compared to the mutant chemicals.
What is the enzyme about?The graph shows the rate of unique catalytic action that remained after warm treatment for each chemical at diverse temperatures. The higher the rate, the more heat-stable the chemical is.
In conclusion, the positioning of the proteins in arrange from slightest heat-stable to most heat-stable is 5F8, D249G, WT, and 1E8, based on the information given within the chart.
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Question 1 A heterozygous yellow-seeded plant is crossed with a homozygous yellow seeded plant. i. ii. Question 2 Complete the punnet square and write the genotypic and phenotypic ration for the possible offsprings. (3 marks) Genotypic ration Phenotypic ration What is the probability of having a pure breeding green seeded offsprings (2 marks) What is the probability of having a yellow-seeded plant in F2 generation, when a true breeder from F1 is crossed with a non-true breeding yellow seeded plant? (2 marks)
Answer:
Explanation:
To solve this problem, let's represent the heterozygous yellow-seeded plant as "Yy" and the homozygous yellow-seeded plant as "YY."
i. When crossing a heterozygous yellow-seeded plant (Yy) with a homozygous yellow-seeded plant (YY), we can set up a Punnett square to determine the possible offspring genotypes:
Y Y
y Yy Yy
y YY YY
ii. The genotypic ratio is 2:2 or 1:1 for the possible offspring genotypes: Yy and YY.
The phenotypic ratio is also 2:2 or 1:1 for the possible offspring phenotypes: yellow-seeded (YY and Yy).
Question 2:
To determine the probability of specific outcomes, we need additional information about the parental genotypes and their inheritance patterns. Please provide the genotypes of the true breeder from F1 and the non-true breeding yellow-seeded plant for a more accurate calculation.
All of the following are part of the Cell Theory, EXCEPT:
Question 1 options:
The cell is the basic unit of life in all living things.
All organisms are composed of one or more cells.
All cells contain DNA in a nucleus.
All cells are produced by the division of preexisting cells.
Answer: The correct answer is d. This is because there is such thing as sexual reproduction, which does not divide cells but rather fertilizes cells.
Comment below if this helped! Brainliest would be great!
Answer:
The correct answer is
C. All cells contain DNA in a nucleus or
Every cell has a nucleus that contains genetic material
Explanation:
I go to K12 and I got 100% (The first one I got an F because of the other person)
mature bone cells that maintain and monitor the protein and mineral content of the surrounding matrix are called: a. osteoprogenitor cells b. osteocytes c. osteoclasts d. osteoblasts e. flag
Mature bone cells that maintain and monitor the protein and mineral content of the surrounding matrix is osteocytes (b).
Bone is a mineralized connective tissue that perform important functions in the body, such as locomotion, protects the vital organs, as a mineral reservoir for calcium homeostasis and consisting of bone marrow. There are four types of cells: osteoblasts, osteocytes, osteoclasts and osteoprogenitor cells.
Osteoblasts responsible on matrix synthesis and synthesize the components that constitute the extracellular matrix of bone. These include structural macromolecules, such as type I collagen as well as numerous proteoglycans, non-collagenous proteins. Osteoblasts also promote mineralization.Osteoclasts dissolve bone. It performs roles on bone resorption.Osteocytes are the most abundant cells in bone. It acts as mechanosensors (can sense pressures or cracks in the bone), directing osteoclasts where and when to dissolve bone and osteoblasts where and when to form it. Osteocytes also regulate mineral homeostasis. They uptake of minerals from the blood directly and release of minerals back into the blood as needed.Osteoprogenitor cells, are stem cells in the bone that play a role in bone repair and growth. These cells are the precursors to the more specialized bone cells (osteocytes and osteoblasts) and reside in the bone marrow.Thus, maintaining and monitoring the protein and mineral bones are done by osteocyte.
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Where can tephra be found?
Answer:In the troposphere
Explanation:
pls mark as brainliest!
Which statements about the phylogenetic tree are true? select all that apply?
Answer: The question is not complete, here is the completed part gotten from other website.
Mammals and turtles are more closely related than are lungfishes and sharks. Hagfishes, lungfishes, and frogs have lobed fins.
Lancelets and coelacanths are more closely related than are chimaeras and coelacanths.
Organism (a) is a common ancestor of all chordates.
Descendants of organism (d) have limbs with digits. birds and ray-finned fishes have a notochord and jaws.
rays and frogs have vertebrae. organism (c) is a common ancestor of lampreys and lungfishes?
The correct options are;
Mammals and turtles are more closely related than are lungfishes and sharks.
Descendants of organism (d) have legs.
Rays and frogs have a vertebral column.
-Birds and ray-finned fishes have a notochord and jaws
Explanation:
This is because phylogenetic tree is a branching diagram that entails different evolutionary relationships that occur between organisms or biological species having common decent or ancestors and showing similar and differences in their genetic characteristics or traits. It shows how species evolved from their ancestors.
In a certain population of rabbits, the allele for brown fur is dominant over the
allele for white fur. If 10 out
of 100 rabbits have white fur, what is the allele
frequency for the recessive allele?
The Hardy-Weinberg equation is:
[homozygous dominant]2 + 2[heterozygous] + [homozygous recessive]? = 1
A. 0.32
B. 0.90
C. 0.10
D. 0.95
Answer:
b because 2+2+675474 then divide ➗ and multiple then you will get 90
The pointy, inferior part of the heart is the ____ while the _____ is much broader with multiple blood vessels entering and exiting from the region.
A. Base; apex.
B. Apex; base
C. Auricle; septum
D. Septum; auricle
The pointy, inferior part of the heart is the _apex___ while the __base___ is much broader with multiple blood vessels entering and exiting from the region.
Q 2. In fruit flies, red eyes (A) are dominant to black eyes (a) and long wings are dominant to short wings. Assume that a cross was made between fruit flies of genotype AAbb (red-eyed with short wings) and those of genotype aaBB (black eyes with long wings). Give the Punnett square for the expected F2 progeny (offspring) types
In complete dominance, dominant alleles always inhibit the expression of recessive alleles in heterozygous individuals. The F2 is expected to be 9/16 individuals with red eyes and long wings, A-B-, 3/16 individuals with red eyes and short wings, A-bb, 3/16 individuals with black eyes and long wings, aaB-, 1/16 individual with black eyes and short wings, aabb.
What is complete dominance?
Complete dominance is the inheritance pattern in which the presence of at least one dominant allele in the individual's genotype is enougth to hide the expression of the recessive allele.
This is evident in heterozygous individuals who express the dominant phenotype.
In the exposed example,
A is a dominnat allele and codes for reda is the recessive allele and codes for blackB is a dominant allele and codes for longb is the recessive allele and codes for shortCross 1:
Parentals) AAbb x aaBB
Gametes) Ab, Ab, Ab, Ab
aB, aB, aB, aB
F1) 100% AaBb
Cross 2:
Parentals) AaBb x AaBb
Gametes) AB, Ab, aB, ab
AB, Ab, aB, ab
Punnett Square) AB Ab aB ab
AB AABB AABb AaBB AaBb
Ab AABb AAbb AaBb Aabb
aB AaBB AaBb aaBB aaBb
ab AaBb Aabb aaBb aabb
F2) Among the progeny, we expect to find
Genotype
1/16 AABB2/16 AABb1/16 AAbb2/16 AaBB4/16 AaBb2/16 Aabb1/16 aaBB2/16 aaBb1/16 aabbPhenotype
9/16 individuals with red eyes and long wings, A-B-3/16 individuals with red eyes and short wings, A-bb3/16 individuals with black eyes and long wings, aaB-1/16 individual with black eyes and short wings, aabbYou can learn more about complete dominance at
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Which of the following is most likely to encourage a person to make healthful decisions?
Explanation:
family members / friend
Which correctly lists three features of a rock's grains that determine its texture?
CO
color, pattern, size
O formation, color, shape
O pattern, color, formation
O shape, pattern, size
Answer:
shape, pattern, size i took the test
Explanation:
Answer:
shape pattern and size
Explanation:
15. (02.05 LC) What evidence suggests that global climate change is causing the oceans to get warmer? (3 points) A. Decreased air temperatures B. Decreased storm strength C. Increased sea levels D. Increased surface ice
Answer:c
Explanation:
4. What are the parent genotypes for pea seed color shown in this Punnett
Square?
Answer:
heterozygous and homozygous recessive
what structure is found in both plan and animal cells A chlorplast B large vacuole C cell wall D Ribosome
Answer:
D Ribosome
Explanation:
Ribosomes make proteins which is needed in plant and animal cells
Answer:
Ribosome
Explanation:
Cell wall only in plant cell, chloroplast only in plant cells also large vacuole
Silvio wants to eat a healthy meal in the college dining hall. Which of the following choices is the BEST thing he can order?
A) salad made up of lettuce and creamy dressing
B) fried chicken in mushroom sauce
C) baked potato with salsa
D) apple and a donut
The best thing Silvio can order is probably salad made up of lettuce and creamy dressing. Option A is correct.
Salads are a good source of fiber, vitamins, and minerals, and can help provide the nutrients Silvio needs for a healthy meal. To make the salad even healthier, Silvio could choose a low-fat or vinaigrette dressing instead of creamy dressing, which is often high in calories and fat.
Fried chicken in mushroom sauce is high in calories and unhealthy fats and should be consumed in moderation. Baked potato with salsa can be a healthier choice if Silvio chooses a plain baked potato and limits the amount of added toppings, such as cheese and butter.
Apple and a donut is not a balanced or nutritious meal. While an apple is a good source of fiber and vitamins, a donut is high in sugar and unhealthy fats and should be consumed in moderation as part of a balanced diet.
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which of these interfere with communication on earth?
1. sunspots
2. solar Flares
3. solar wind
4. solar prominences
Answer:
2) Solar Flares
Explanation:
Solar flares have been known to affect electronic communication because their energy stirs up the Earth's upper atmosphere, making radio broadcasts noisy and weak. The flares, caused by violent storms on the Sun, eject a stream of electrically-charged particles, some of which reach the Earth.
Answer:
2. Solar Flares
Explanation:
4. Synthesis of an mRNA molecule from a DNA template
a. Transcription
b. Translation
C.DNA Replication
d. RNA polymerase
The synthesis of an mRNA molecule from a DNA template is called transcription. Therefore, option A is correct.
It is a biological process in which genetic information encoded in DNA is converted into RNA molecules. It is a fundamental step in gene expression and is essential for protein synthesis.
During transcription, an enzyme called RNA polymerase binds to a specific region of DNA called the promoter, which signals the start of a gene. The RNA polymerase unwinds and separates the DNA strands, exposing the template strand. The template strand serves as a guide for synthesizing a complementary RNA molecule.
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Which of the following best describes the flow of energy in the Everglades food web shown below? (4 points) Diagram for an everglades food web. The food web contains the following organisms: American alligator, egret, raccoon, carp, Key deer, insects, Southern leopard frog, mangrove, and sawgrass. Mangrove is at the bottom of the food web, with arrows pointing to Key deer and insects. Sawgrass is also at the bottom of the web, with an arrow pointing to insects. Key deer, insects and Southern leopard frog are on the next level up. The Key deer has an arrow pointing to American alligator. The insects point to egret, carp, and Southern leopard frog. The Southern leopard frog points to the American alligator and the raccoon. The egret, carp and raccoon all points upward toward the American alligator. The carp also points to the egret. The American alligator is at the top of the food web. Mangrove → insects → carp → American alligator; about 90 percent of the energy in one trophic level is transferred to the next trophic level. Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level. American alligator → carp → insects → mangrove; about 10 percent of the energy in one trophic level is transferred to the next trophic level. Egret → insects → mangrove → key deer → American alligator; about 90 percent of the energy in one trophic level is transferred to the next trophic level.
Answer:
Although there is no diagrammatic representation of the food web but the question can be answered based on the provided information. The answer is:
Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
Explanation:
Food web is an interconnected food chain i.e. a series of food chains clustered together. A food web represents the various ways one organism can feed on another in a cycle. Since a food web consists of many food chains, energy is transferred when one organism feeds on another (flow of energy).
Just like a food chain, a food web begins with a PRODUCER, which is an organism capable of producing its own food via photosynthesis. This is the case of mangrove and sawgrass in this depicted food web as they are both producers and hence, must start the food web i.e. be at the bottom of the food web. Organisms called CONSUMERS feed on producers and one another to obtain energy. Consumers can be primary, secondary or tertiary depending on the organism they feed on. Primary consumers feed directly on producers, secondary consumer on primary and tertiary consumers on secondary, in that order.
This accounts for why the American Alligator is at the top of the food web because it is a tertiary consumer.
However, as organisms feed on one another, only about 10% of the available energy is transferred because most of the energy (about 90%) has been used for metabolic processes and hence, lost as heat.
Therefore, the best description for the flow of energy in the Everglades food web is:
Sawgrass → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
Sawgrass is the producer and must begin the energy flow, followed by a primary consumer (insect). Feeding continues in that order until the tertiary consumer (American alligator) is reached.
Answer:
b) Mangrove → insects → Southern leopard frog → raccoon → American alligator; about 10 percent of the energy in one trophic level is transferred to the next trophic level.
Explanation:
took test on FLVS
The________ theory believed personality included three components: ego, superego, and Id.
Answer: freud's psychoanalytic theory
A student took a swab of the inside of their cheek during a lab investigation. While looking under the microscope, the student noticed two different objects on the slide, as shown.
What are both of the objects on the slide?
The two objects on the slide that the students noticed are cheek cells and bacteria.
What should you know about cheek cells?Cheek cells are the cells that line the inside of your cheek. They shed constantly and are also replaced by new cells.
Bacteria are microscopic organisms that live on and in our bodies. There are many different types of bacteria, and they can be found in all parts of our bodies, including our mouths.
Bacteria are not all bad. Some of them are important for our health because they help to break down food and they produce vitamins that we need.
The student was able to see the cheek cells and bacteria on the slide because they were stained with a dye called methylene blue.
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Need this ASAP. 20 points
Write a question to match this answer:
6 boxes of 12
Answer:
The chocolate lover bought 6 boxes of chocolate, each containing 12 truffles
Explanation:
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Answer:
The chocolate lover bought 6 boxes of chocolate, each containing 12 truffles. How many truffles did she buy?