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Where does photosynthesis usually occur in epidermis?
The epidermis of most plants is made of transparent cells that allow light into the mesophyll cells below them, which contain chloroplasts and are the site of photosynthesis. Additionally, the epidermis contains stomata, which are pores that allow for the exchange of gases with the atmosphere. This lets the plants take in carbon dioxide and release oxygen, as well as allowing for transpiration (evaporation), which ultimately helps to move water into leaves. Waters is also needed for photosynthesis.
During which main phase of the cell cycle do mitosis abd cytokinesis occur?
Mitosis and cytokinesis occur during the M phase (mitotic phase) of the cell cycle. This phase is characterized by cell division, where the cell replicates its DNA and divides into two daughter cells.
When does the second mitotic division occur in the egg?
The second mitotic division in the egg typically occurs after fertilization by the sperm. This division takes place once the zygote has formed and involves further division of the replicated chromosomes to generate daughter cells with the full complement of chromosomes.
What is the period of time between the first and second meiotic divisions?
The period of time between the first and second meiotic divisions is known as interkinesis. Interkinesis is a brief interphase that occurs between the two meiotic divisions in which DNA replication does not occur.
What mitotic structures are present both in plant and animal cells?
All multicellular plants and animals, as well as fungi and protists, use mitotic cell division to develop from single cell organisms into organisms containing billions of cells. Mitosis continues in full-grown organisms replacing dying or repairing damaged cells. Throughout the human body, an estimated 25 million mitotic cell divisions occur every second in order to replace cells that have completed their normal life cycles. Some multicellular organisms rely on mitosis for asexual reproduction, and it is the only reproduction method used by many single-celled organisms.
Where else in a plant might you find a large amount of mitotic cell divisions occurring?
Mitotic cell division refers to the division of the mother cell into two daughter cells. In plants, a large amount of mitotic cell divisions occur in the terminal buds, shoot tips and in the vascular cambium.
What is skin epidermis?
The epidermis is a supuficial thin layer and is divided into three layers, The Malphigian layer, The Granular Layer and The Cornified Layer.4-5 layers of stratified squamous epithelial cells with lipid layer to preserve moisture. Thin skin is made of 4 layers the stratum germanitivum, the stratum spinosum, the stratum granulosum, and the stratum corneum, thick skin has all these layers and an additional layer named the stratum lucidum.The epidermis is composed of the outermost layers of cells in the skinEpidermis is the outer layer of cells covering an organism, in particular.Your epidermis is the outer layer of your skin.Anything that is not your skin. Epidermis-- The uppermost layer of skin cells.The epidermis is the outer covering of a living thing or organism. On a human or animal, this basically means your skin. The epidermis layer covers the dermis layer of tissue.
What are the divisions of the atmosphere primarily based on?
The divisions of the atmosphere are not based on the presence of ozone. Ozone exists in all layers of the atmosphere, with a peak in the lower stratosphere. Ozone is considered a free radical, not an ion. Ions are found in the "ionosphere" which is also called the thermosphere, where the Sun's ionizing energies rip the molecules apart (and fresh ions arrive from the Sun).
What divides the layers of the earth's atmosphere?
From the Earth outward the layers of the atmosphere are; Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere. These layers are divided by whether the temperature increases or deceases with an increase in altitude within the layer.
When does cytokinesis occur in cell cycle?
It usually occurs in telophase of mitosis and in the M (mitotic) phase.
How many cell divisions occur in a 24 hours in adult human beings?
About 2 trillion cell divisions occur in an adult human every 24 hours.
Where does photosynthesis usually occur in epidermis?
The epidermis of most plants is made of transparent cells that allow light into the mesophyll cells below them, which contain chloroplasts and are the site of photosynthesis. Additionally, the epidermis contains stomata, which are pores that allow for the exchange of gases with the atmosphere. This lets the plants take in carbon dioxide and release oxygen, as well as allowing for transpiration (evaporation), which ultimately helps to move water into leaves. Waters is also needed for photosynthesis.
What divisions existed among allies troops in Europe?
Most divisions that occur among the allied troops are divisions related to race, gender, and equality.
How many divisions in meiosis?
Two successive nuclear divisions occur, Meiosis I (Reduction) and Meiosis II (Division)
What criterion is used to divide earths atmosphere into layers?
Earth's atmosphere is divided into layers based on changes in temperature and composition with altitude. The layers include the troposphere, stratosphere, mesosphere, thermosphere, and exosphere, each with distinct characteristics and dynamics. These divisions help scientists study the different properties and processes that occur within each layer.
During which main phase of the cell cycle do mitosis abd cytokinesis occur?
Mitosis and cytokinesis occur during the M phase (mitotic phase) of the cell cycle. This phase is characterized by cell division, where the cell replicates its DNA and divides into two daughter cells.
What are the two disjunctionsthat can occur?
Mitotic or meiotic, depending on whether ordinary cell division or gamete production is involved.
