Answer:
true
Explanation:
Daylight hours are shortest in each hemispheres winter. between summer and Winter Solstice, the number of daylight hours decreases, and the rate of decrease is larger the higher latitude. the fewer sunlight hours the colder the nights.
Opsonins function by Opsonins function by marking or tagging pathogens so phagocytes can find and ingest them. poisoning and killing invading cells, marking or tagging pathogens so phagocytes can find and ingest them, and digesting invading cells directly. poisoning and killing invading cells. digesting invading cells directly. poisoning and killing invading cells and marking or tagging pathogens so phagocytes can find and ingest them.
Answer:
The correct answer is: marking or tagging pathogens so phagocytes can find and ingest them.
Explanation:
Opsonins are proteins of great importance in our immune system that can intervene in the innate and the adaptative immune response thanks to the complement system.
Opsonins can recognize pathogens or diseased cells and bind to their surface molecules, thus marking them for other cells (particularly phagocytes such as macrophages and neutrophils) to phagocyte (eat) them. This process is hugely important in removing potential threats and non-functioning cells.
F1 có kiểu hình hoa trắng quả nhỏ chiếm tỉ lệ 6% biết không xảy ra Đột Biến Nhưng xảy ra hoán vị gen ở hai giới với tần số bằng nhau lấy ngẫu nhiên 2 cá thể có kiểu hình hoa đỏ quả to xác suất thu được 1 có thể dị hợp về hai cặp gen là
i'm sorry but i cannot understand what language you use
Pond silk or water silk is the common name of......
a. Nostac b. spirogyra
c. chalamydomonas d. peziza
Answer:
B
Explanation:
Spirogyra is free-floating green algae present in freshwater habitats such as ponds, lakes, etc. Spirogyra is commonly known as water silk or pond silk. They have a filamentous and unbranched vegetative structure.
or
Spirogyra forms a silk like layer on the water. It is present in abundant amount on the fresh water bodies or slow running water. They are slippery in nature, so are commonly known as pond silk or water silk.
What is the purpose of genetically modified crops?
A. increasing the price of seeds.
B. increasing the price of food
C. increasing food products.
D. increasing the amount of farmland.
Answer:
d
Explanation:
Specific DNA sequences called promoters provide binding site for the enzyme that synthesizes mRNA the enzymes are involved directly in which process
I need help with this please !!
plsss help!..............
Answer:
hope this helps!
Explanation:
When a nerve impulse reaches the end of an axon, the axon releases chemicals called neurotransmitters. Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron. ... The binding allows the nerve impulse to travel through the receiving neuron.
source: https://flexbooks.ck12.org/cbook/ck-12-middle-school-life-science-2.0/section/11.41/primary/lesson/nerve-cells-and-nerve-impulses-ms-ls
Answer:
When a nerve impulse reaches the end of an axon, the axon releases chemicals called neurotransmitters. Neurotransmitters travel across the synapse between the axon and the dendrite of the next neuron. ... The binding allows the nerve impulse to travel through the receiving neuron
Help please!!! In_____ selection, the environment determines which individuals pass on their traits, while in_____ selection, a farmer or breeder determines which individuals pass on their traits.
A: natural,Lamarckian
B:artificial, natural
C: artificial, independent
D: natural, artificial
Answer:
D
Explanation:
Natural selection and artificial selection
Eukaryotic cells can be found in all of these organisms EXCEPT - *
Huinans
Animals
O Plants
Bacteria
Bacteria
This is the answer
Answer:
correct answer is bacteria
hope it helps
The picture below shows four varieties of the same species of grass that grow in a prairie ecosystem which variety has the best chance of surviving a long period of dry weather? (SC
Flowers
Leaves
Roots
Variety 1
Variety 2
Variety 3
Variety 4
Variety 1
O Variety 2
o Variety 3
O Variety 4
Answer: Variety 3
Explanation:
Variety 3 has more roots and can withstand longer.
Because _____ is not a reason to reject frozen food.
a similar or identical product is available in freeze-dried form
fluids or frozen liquids appear in case bottoms
there are water stains on the package
ice crystals appear on the product or package
Answer: Correct answer is A, a similar or identical product is available in freeze-dried form.
Explanation:
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What were some number of possible solutions to air pollution?
[tex]what \: is \: DNA \: \: \: {?} \\ \\ \huge\mathfrak\red{please \: help \: }[/tex]
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✰ DNA stands for [tex]\sf\purple{deoxyribonucleic\: acid}[/tex].
✰ It is a type of nucleic acid that contains the genetic code of organisms and is also the molecule of heredity in all cells.
✰ DNA is mainly present in the chromosomes in nucleus.
✰ It carries the genetic information that is passed on to the next generation.
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a large glucose molecule requires facilitated diffusion, but an oxygen molecule does not
Answer:
A large glucose molecule requires facilitated diffusion but an oxygen molecule does not is a semipermeable membrane
Explanation:
Have a nice day :)
James needed to have his hernia surgically repaired. This can be done through laparoscopic surgery. The surgeon must cut through to the herniated area and put a Teflon mesh underneath the hernia to close it off and provide more support to the area. Use your knowledge of anatomy to select the correct sequence of structures that would be cut for this procedure. Make sure you select the structures in the order they would be cut by the surgeon.
Answer:
The structures that the surgeon will cut to place the Teflon mesh from external to internal are:
Skin,
hypodermis,
subcutaneous fat,
the external oblique aponeurosis,
the internal oblique,
the transverse abdominal,
the peritoneum.
Explanation:
For the surgeon to put the Teflon mesh underneath the hernia, the professional has to cut the most external organ, which is the skin, with all its layers, epidermis, dermis, and hypodermis. Underneath this tissue is the subcutaneous fat, which protects the muscles, regulates the temperature, and stores energy. Subcutaneous fat is different in every person. Some can have a lot of it and others a thin layer. The next cut will be on aponeurosis, which is a tissue that surrounds muscles. Then we have the internal abdominal oblique, which is in the anterior area of the abdomen. Below it, it is the transverse abdominal, and then the peritoneum, which is the tissue that holds the organs. In a hernia, it has a hole where the organs push through. So, the surgeon has to put a Teflon mesh to close it.
In which phylum , silver fish comes under??
Explanation:
silver fish is come under phylum arthopoda.
hope it helps
Inserting normal genes into cells with genetic mutations is called.
Group of answer choices
stem cell research
gene therapy
mutating
chromosomes
What does the immune system produce to help fight future infections with the same type of vírus that is introduced in a vaccine?
mutations
anticodons
mutagens
antibodies
Answer:
antibodies us the answer
The end product(s) of the light-independent reactions of photosynthesis is/are - Select all that apply.
1.Glucose
2.ATP
3.Oxygen
4.Carbon dioxide
Answer:
Glucose
Explanation:
The light dependent stage produces oxygen while the light independent stage produces glucose ( a carbohydrate)
Oxygen and glucose are the two products of photosynthesis.
Someone, plz help me!!! I will give 30 points to the correct answer!!!
What are at least three examples of food and agriculture health milestones which may have led to a significant INCREASE in the human population.
Answer: Farming Hunting and Industrialization
Explanation:
Irrigation, farm machines and high yield in agriculture has result in increase in human population.
What is agriculture?"Agriculture or farming is the practice of cultivating plants and livestock."What do you mean by irrigation?"The supply of water to land or crops to help growth, typically by means of channels."Why farm machines are used in agriculture?They are used to reduce labor.Make work more efficient.Examples: tractor, plough, etc.,What do you mean by high yield?Various methods are used to increase the production of food.Along with plant products surplus animal products are available for consumption.Hence, better irrigation, use of machines and high yield in agriculture can result in increase of human population.
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Which of the following best describes the difference between an adaptation and adapting?
Answer:
Explanation:
Adaption and adaptation are different forms of the same word, and they share all their meanings, which include (1) the act of changing to suit new conditions, and (2) a work of art recast in a new form or medium. But the longer word, adaptation, is preferred by most publications and is much more common
Answer:
C
Explanation: I took the ape x quiz
Plants also use cellular respiration
A. True
B. False
Answer:
A. True
Explanation:
Yes, the plants use cellular respiration. So, option (A) is the correct answer.
why people living in high altitude have level of RBC?
Answer:
Scientists have long known that the body adjusts to the oxygen-deprived conditions of high altitudes. ... The traditional explanation has been that low-oxygen conditions cause the body to build new red blood cells, making it easier to supply oxygen to muscles and vital organs.
is it more beneficial for humans to undergo sexual reproduction than asexual reproduction?
Answer:Advantages and disadvantages of sexual and asexual reproduction
Sexual reproduction involves two parents and the joining of male and female gametes during fertilisation. The offspring inherit a mixture of genes from both parents, so are different to each other and their parents.
The advantages of sexual reproduction:
produces genetic variation in the offspring
the species can adapt to new environments due to variation, which gives them a survival advantage
a disease is less likely to affect all the individuals in a population
In asexual reproduction there is only one parent. The offspring are clones of the parent and each other.
The advantages of asexual reproduction include:
the population can increase rapidly when the conditions are favourable
only one parent is needed
it is more time and energy efficient as you don't need a mate
it is faster than sexual reproduction
The disadvantages of sexual reproduction:
time and energy are needed to find a mate
it is not possible for an isolated individual to reproduce
The disadvantages of asexual reproduction include:
it does not lead to genetic variation in a population
the species may only be suited to one habitat
disease may affect all the individuals in a population
Examples in the natural world
Bacterial reproduction
Bacteria, such as E. coli, reproduce asexually. An advantage of this is that they can produce many bacteria very quickly. A disadvantage is that all of the bacteria are genetically identical. If an antibiotic was used on the bacteria, then all of them would die. The population would be wiped out. The only way for variation to be introduced into the population is by random mutation.
Rabbit reproduction
Most animals reproduce sexually, for example, rabbits. The process of sexual reproduction introduces variation into the species because the alleles that the mother and the father carry are mixed together in the offspring. A disadvantage is that sexual reproduction takes longer than asexual reproduction. A mate must be found, the egg must be fertilised by sperm, and then the offspring develop. The benefit of introducing genetic variation into the species, however, outweighs this disadvantage. If a disease were to hit the rabbit population, then perhaps not all of the rabbits would be affected because of the variation in the population. This means that some individuals would survive and be able to reproduce and generate more offspring.
Asexual and sexual reproduction in fungi
Some fungi are able to reproduce both sexually and asexually. Fungi reproduce using spores which they release into the environment. A new fungus will grow from the spore. The Coprinus cinereus fungus can produce spores by sexual reproduction to help create variation in the species. This method of reproduction is advantageous when the environment is changing because the variation introduced leads to an increase in the probability that a variant that can deal with the change. Coprinus cinereus also produces spores by asexual reproduction. These spores can be produced quickly and in large numbers to enable many individual fungi to develop. A disadvantage of these spores is that they generate offspring that are unlikely to be resistant to unfavourable conditions because they are all genetically identical.
Common inkcap mushrooms
Some mushrooms can carry out both asexual and sexual reproduction depending on their environment
Explanation:spores can be produced quickly and in large numbers to enable many individual fungi to develop. A disadvantage of these spores is that they generate offspring that are unlikely to be resistant to unfavourable conditions because they are all genetically identical.
Common inkcap mushrooms
Some mushrooms can carry out both asexual and sexual reproduction depending on their environment
Answer the following questions in your own words and in 3-5 complete sentences.
1. Where are the highest concentrations of the current population of Palmer amaranth?
2. Based on the climate model, how will the range change by 2050?
3. What do you think this change will mean for Palmer amaranth populations?
industrial preparation of oxygen from liquify air
Scientists are reluctant to say that any theory is absolutely true. Why do you think that is? I
Answer: Because more and more is discovered about the world everyday and they don’t want to be wrong.
Explanation:
PLEASE HELP ITS URGENT 15 POINTS !!!!
Answer 3. A-b
Answer:
a) I b)i) 2
Explanation:
How does elevation effect water?
What type of vegetable is a mushroom?
Answer:
Although mushrooms are classified as vegetables, technically they are not plants but part of the kingdom called fungi. However, they share some characteristics with plants and, as you will find out, even with animals! Mushrooms are low in calories, have virtually no fat and no cholesterol, and are very low in sodium.
Explanation:
MARK AS BRAINLY
Answer: not vegetable
Explanation: have no leaves, roots or seeds and don't need light, so they're not a true vegetable
If a cell with 42 chromosomes undergoes mitosis, how many chromosomes will each daughter cell have?
Answer:
42
Explanation:
If a cell has 42 pairs of chromosomes (n = 42), it has 84 chromosomes (2n = 84). At the end of mitosis, the two daughter cells will be exact copies of the original cell. Each daughter cell will have 84 chromosomes. At the end of meiosis II, each cell (i.e., gamete) would have half the original number of chromosomes, that is, 42 chromosomes.
A simple example is↓
The parent cell of 10 chromosomes will end up becoming two daughter cells that each have a copy of those 10 chromosomes.
The important fact about mitosis is that the daughter cells are identical to the parent cell. The daughter cells will have the same number of chromosomes as the parent cell.
If a cell with 42 chromosomes undergoes mitosis, the equal 42 chromosomes will each daughter cell have.
What is Mitosis?
Mitosis is a process where a single cell divides into two identical daughter cells (cell division).
Before a cell divides it undergoes DNA replication. As a cell enters mitosis, double-stranded chromosomes fuse from the replicated DNA. A cell having 42 chromosomes will have 42 double-stranded chromosomes entering mitosis. Upon completion of cell division, each daughter cell will receive 42 single-stranded chromosomes, as double-stranded chromosomes are pulled apart during mitosis.
Therefore, if a cell with 42 chromosomes undergoes mitosis, the equal 42 chromosomes will each daughter cell have.
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