I need the answer for question 4 please and thank you

Answer:

Sandgrouse is the common name for Pteroclidae, a family of sixteen species of birds, members of the order Pterocliformes.  They are traditionally placed in two genera. The two central Asian species are classified as Syrhaptes. How the sand grouse adapt to environment. The dense layer of under down which helps insulate the bird from extremes of heat and cold. The feathers of the belly are specially adapted for absorbing water and retaining it. Allowing adults particularly males to carry water to chicks that may be many miles away from watering holes.

Explanation:

Answer:

egg cell, reproductive cell, and sperm cell

the level of organization from least to most complex is an organism, population, community, ecosystem. Hence the correct answer is OPTION C

An ecosystem refers to the environment in which all living and non-living organisms exist. Living factors are also called biotic factors and nonliving ones are called abiotic factors. hence these factors are organized in the order called the Hierarchy of ecosystem organization.

The Hierarchy of ecosystem organization is classified in order of most simple to complex which is as follows-:

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Answer:

Hydrogen bonding allows water to have a <strong> surface tension than many other liquids

Explanation:

The correct genotype of the parents shown in the picture is Rr and Rr (option D).

Genotypes are part (DNA sequence) of the genetic makeup of an organism which determines a specific characteristic (phenotype) of that organism.

According to this question, the dominant allele for flower color is red (R) while the recessive allele is white (r).

However, when two red colored parents were crossed, three red and one white offsprings were produced. This means that both of the parents carry a recessive allele for white coloration i.e. the parents are heterozygous.

This suggests that the genotype of both parents are Rr (red) and Rr (red) respectively.

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The cell cycle is comprised of the following steps: Mitosis (prophase, metaphase, anaphase, telophase) and cytokinesis follow interphase (G1, S, G2). During interphase, the cell prepares to divide, organelles duplicate, and DNA replicates in the S phase.

The cell cycle is a four-stage process during which the cell grows (gap 1, or G1), replicates its DNA (synthesis, or S), prepares to divide (gap 2, or G2), and divides (mitosis, or M, stage).

The cell cycle is divided into four stages: gap 1 (G1), synthesis (S), gap 2 (G2), and mitosis (M). A single cell cycle takes about 24 hours for most human cells.

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Chromatin remodeling, which is unique to eukaryotic cells. The correct option is c.

Gene regulation refers to the process of turning on or off genes as needed by the cell. It is an essential process that enables cells to respond to changing environments and developmental signals. Gene expression is regulated at various stages, including transcription, RNA processing, translation, and protein degradation. Chromatin remodeling refers to the process of changing the structure of chromatin, the combination of DNA and proteins that makeup chromosomes. It is a vital mechanism of gene regulation that controls gene expression by regulating the accessibility of genes to transcription factors.

Chromatin remodeling involves the addition or removal of chemical modifications to histone proteins that pack DNA into chromatin. These modifications can either facilitate or restrict access to the underlying DNA sequence by transcription factors, resulting in gene activation or repression respectively. The unique structure of chromatin and histone proteins is characteristic of eukaryotic cells, and therefore, chromatin remodeling is unique to eukaryotic cells. In summary, Chromatin remodeling is the mechanism of gene regulation that is unique to eukaryotic cells.

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In a process called clonal selection, an army of plasma cells and memory cells are produced from properly-stimulated B cells.

Clonal selection is a crucial mechanism of the adaptive immune response. When B cells encounter an antigen that matches their specific B cell receptors (BCRs), they become activated. This activation triggers a process called clonal selection, which leads to the proliferation and differentiation of B cells.

During clonal selection, the activated B cell undergoes clonal expansion, dividing and producing a large number of identical daughter cells. Some of these daughter cells differentiate into plasma cells, which are responsible for the immediate production and secretion of antibodies. Antibodies play a crucial role in neutralizing pathogens and other harmful substances in the body.

Additionally, clonal selection also gives rise to memory B cells. Memory B cells are long-lived cells that "remember" the specific antigen encountered. If the same antigen reappears in the future, memory B cells can rapidly differentiate into plasma cells, leading to a faster and more robust immune response.

Clonal selection is an essential process in the immune system, ensuring the production of an army of plasma cells and memory cells from properly-stimulated B cells. This mechanism plays a crucial role in mounting an effective immune response against invading pathogens and providing long-term immunological memory.

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Answer:

Biological or internal factors such as age,gender, inherited genetic defects,skin types,etc

environmental exposure eg exposure to Radon and UV radiation and fine particulate matter

Answer:

Um B I hope my answer is right!!

Explanation:

Answer:

producer level

Explanation:

Answer:

Energy is transferred between trophic levels when one organism eats another and gets the energy-rich molecules from its prey's body. However, these transfers are inefficient, and this inefficiency limits the length of food chains.

The behavior of an object when left in an open or closed container will depend on the nature of the object and the environment it is placed in.

When an object is left in an open container, it is exposed to the surrounding air and can interact with it. The extent of this interaction depends on the properties of the object and the air. For example, a liquid left in an open container will slowly evaporate as its molecules escape into the air. This process will continue until either all the liquid has evaporated, or the concentration of the liquid in the air reaches an equilibrium with the remaining liquid in the container. Similarly, a solid material left in an open container may absorb moisture from the air, leading to a change in its properties such as its texture or weight. In summary, the behavior of an object left in an open or closed container depends on its properties and the environment it is placed in. An open container allows for interaction with the surrounding air, while a closed container limits interaction, although some limited exchange may still occur.

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Answer:

I just made her answer much longer

Answer:

Jack is using

CONSERVATION TILLAGE.

... water between the DAMS.

Explanation:

i got em right

Answer:

C. The universe coalesced into one solar system after the Big Bang.

Explanation:

This is true because, since she is writing about Big Bang theory, she would have to include how the universe was able to expand to one solar system made up of different planetary bodies. This explanation would help someone reading her writeup to understand what the Big Bang theory is all about.

Answer:

C

Explanation:

The correct answer is (C) because Marcie has the simple information but she is missing how the the (Big Ban) happened

Answer:

allele

Explanation:

a spot on chromosome is an allele

Answer:

The answer is option b

Organism

Since all the cells, tissues and organ system come together to form an organism.

Hope this helps

For number 1, I got water moving out of the animal cell to reach the hypertonic environment, causing the cell to shrink or undergo crenation. For number 2, I got water moves into the animal cell by osmosis, and the cell may experience swelling or bursting to reach a hypotonic state.

Answer:

All options are correct, that is, they would all be correct for osteoarthritis.

This disease is characterized by being very painful at the joint level, it is degenerative, and mobility decreases over time.

Explanation:

Osteoarthritis is a pathology that is based on the fegenerative destruction of the joints, generating edema and loss of function, that is why it is pain.

The pain is very intense and very marked, that is why it is treated with immunosuppressive drugs and analgesics. (In addition to kinesiology and physiotherapy).

This disease decreases the functional unit and the joint space, generating possible ankylosis, pseudoarthrosis, elimination of lubricating fluid from joints and nodular structures. These nodular structures tend to be more common in the hands and are called by professionals as "drum fingers".

10cm/s

hope it helps:))

Answer:

It's C and F i guess, which make any sense, sorry if the answer is wrong

Answer:

diffusion pulls molecules into the xylem

Answer:

Its C

Explanation:

the cohesive properties of water and root

pressure moves water molecules up the plant

A codon can be changed to one that encodes the same amino acid without affecting the protein that results. Silent mutations are what they are known as.

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Answer:

Üçlü füzyonda, üçüncü bir sperm çekirdeği, embriyo kesesindeki merkezi hücre ile birleşerek endospermi üretir. Eşleşme ve üçlü füzyon arasındaki temel fark, eşleşmenin bir tür üretici döllenme olduğu, üçlü birleşme ise bir tür bitkisel döllenmedir .İyi Çalışmalar..

Answer:

Syngamy: Syngamy refers to the fusion of gametes in fertilization.

Triple Fusion: Triple fusion refers to the fusion of a sperm cell with the two polar nuclei during the double fertilization in angiosperms.

Type of Fusion

Syngamy: In syngamy, a male gamete fuses with a female gamete.

Triple Fusion: In triple fusion, a male gamete fuses with the central cell.

Result

Syngamy: Syngamy produces the zygote that develops into the embryo.

Triple fusion: Triple fusion produces the endosperm cell that develops into the endosperm.

Ploidy

PloidySyngamy: The result of the syngamy is diploid.

Triple Fusion: The result of the triple fusion is triploid.

Type of Gametes

Type of GametesSyngamy: Both male and female gametes are involved in the syngamy.

Triple Fusion: Only male gametes are involved in the triple fusion.

Type of Fertilization

Syngamy: Syngamy is a generative fertilization.

Triple Fusion: Triple fusion is a vegetative fertilization.

Occurrence

OccurrenceSyngamy: Syngamy occurs in animals and plants.

Triple Fusion: Triple fusion occurs in angiosperms.

Conclusion

Syngamy and triple fusion are two types of events in the sexual reproduction of plants. Syngamy is the fusion of male and female gamete, producing the zygote. Triple fusion is the fusion of a male gamete with the central cell of the female gametophyte, producing the endosperm. The main difference between syngamy and triple fusion is the type of fusion of cells in each event.

I hope it's helpful!

The growth of the organisms when the temperature of the water ranges above than 30 degrees can create physical and mental imbalance and it can be fatal.

Every organism belong to its optimum temperature if there is an increase or decrease in temperature it can create imbalance within organism or even death. There is an optimum water temperature for every organism and it cannot sustain higher than the optimal temperatures.

When water temperature raises above 30 degrees it can be beneficial to water animals as they prefer higher temperatures because it enhances their metabolic and growth rate. But they can also sustain temperature to a limited point, beyond the limited tolerance it will cause serious effects.

The fact that which organism can survive at which temperature is affected by various factors such as their habitat, body physiology etc.

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A plant cell is made up of numerous components or organelles, each of which has a specific function. Organelles are membrane-bound compartments that are present inside the cell and perform various functions.

Here are the structures of a plant cell:

1. Nucleus - The nucleus is a membrane-bound organelle that contains DNA, which is responsible for the control of cellular activities and the production of proteins.

2. Mitochondria - Mitochondria are responsible for producing the majority of the cell's energy.

3. Chloroplasts - Chloroplasts are responsible for the process of photosynthesis. They contain the pigment chlorophyll, which absorbs light energy from the sun and converts it into food for the plant.

4. Endoplasmic Reticulum - The endoplasmic reticulum is a network of tubes and flattened sacs that transport materials within the cell.

5. Golgi Apparatus - The Golgi apparatus is responsible for modifying, sorting, and packaging proteins and lipids for delivery to other parts of the cell or for export outside the cell.

6. Vacuoles - Vacuoles are membrane-bound organelles that store water, ions, and other materials.

7. Cell wall - The cell wall provides structure and support to the cell, as well as protection from mechanical stress.

8. Cell membrane - The cell membrane is the outermost layer of the cell, which is made up of lipids and proteins. It regulates the entry and exit of materials from the cell.

9. Ribosomes - Ribosomes are responsible for protein synthesis in the cell. They read the mRNA (messenger RNA) instructions and build the protein molecules accordingly.These are the structures of a plant cell.

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On the other hand, in areas of the ocean that are extremely productive, high phytoplankton density close to the surface reduces the depth to which light can reach, decreasing productivity at deeper waters.

Primary productivity is constrained by light availability.This implies that elevated amounts of primary productivity follow from high amounts of light.The process by which living things create organic molecules from their inorganic sources is known as primary productivity.This procedure uses light as its source of energy.

The production of plant food, spike length, leaf color, and flowering are all influenced by light intensity.Low light environments typically result in spindly plants with light green foliage.Similar plants that are grown in intense light typically have larger, dark green foliage and shorter, better branches.

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