Answer:
The chronological order of events ealiest to most recent (1-6) are given below:
Explanation:
1. Hans and Zacharias Janssen created the first microscope in the year 1590.
2. Robert Hooke was the first to use the word "cell." In the year 1665
3. Anton van Leeuwenhoek observed small organisms he called "animalcules." In the year 1674
4. Matthias Schleiden theorized that plants are made of cells in the year 1838
5. Theodor Schwann theorized that animals are made of cells in the year 1839
6. Rudolf Virchow theorized that cells come from other pre-existing cells in the year 1855
Answer:
The chronological order of events ealiest to most recent (1-6) are given below:
Explanation:
1. Hans and Zacharias Janssen created the first microscope in the year 1590.
2. Robert Hooke was the first to use the word "cell." In the year 1665
3. Anton van Leeuwenhoek observed small organisms he called "animalcules." In the year 1674
4. Matthias Schleiden theorized that plants are made of cells in the year 1838
5. Theodor Schwann theorized that animals are made of cells in the year 1839
6. Rudolf Virchow theorized that cells come from other pre-existing cells in the year 1855
b. counseling
c. medication
d. anxiety
The correct answer is anxiety.
Nightmares are caused by the emotional issues related to the surrounding in which one is living. Anxiety can be one of themost prominent reason for nightmare but it cannot be used as a treatment. Having a healthy diet, counselling and medication in severe cases can help solve the problem of nightmare.
b. Remora fish attaching themselves to sharks
c. Birds feeding on insects stirred up by grazing animals
d. Birds eating scraps of food from a crocodile’s teeth
Answer:
The correct answer would be a. Tapeworms living in a mammal’s intestinal tract.
Parasitism refers to the relationship between two organisms or species in which one organism lives in or on the body of the other.
The organism which lives on the body of the other is termed as the parasite while the other organism is termed as the host.
The parasites derive their nutrition from the host but they do not kill their host at once.
Examples may include tapeworm, hookworm, Plasmodium,flukes, fleas et cetera.
The tapeworm are the flat segmented flatworm that live as parasite in the intestine of the mammals. They derive their nutrition from the partly digested food of the host. It deprived the host of nutrients.
Answer:
Photosynthesis is a chemical reaction where plants take in carbon dioxide (CO2) and water (H2O) through its stomata. With the help of sunlight and chlorophyll, which is found in its chloroplast, it is used to produce glucose (C6H12O6) and oxygen (O2). It converts light energy (sunlight) to chemical energy.
Explanation:
Answer:
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Explanation:
photosynthesis, plants take in carbon dioxide and water from the air and soil. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
It is convenient to divide the photosynthetic process in plants into four stages, each occurring in a defined area of the chloroplast: (1) absorption of light, (2) electron transport leading to the reduction of NADP+ to NADPH, (3) generation of ATP, and conversion of CO2 into carbohydrates (carbon fixation).
The closest algal relatives of land plants are Charophytes, as both share many distinctive features including similar metabolic pathways and the presence of cellulosic cell walls.
The closest algal relatives of land plants are the Charophytes. This group of green algae shares many distinctive features with land plants such as similar metabolic pathways, sequence of DNA, RNA and proteins, and the presence of cellulosic cell walls. Additionally, in both Charophytes and land plants, the sperm structure is the same which further supports their close relationship. However, it is important to remember that Charophytes remain aquatic, and although they are close relatives, they do not represent a transitional stage to terrestrial plants.
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In the lytic cycle, a virus that has invaded and entered a cell takes over the cell's replication mechanism. The virus makes viral DNA and viral proteins.
The virus then lyses (breaks open) the cell membrane, allowing the newly produced viruses to leave the now disintergrated host cell to infect other new cells.
In a lysogenic cycle, the viral DNA or RNA enters the cell and integrates into the host DNA as a new set of genes called prophage. The prophage is passive and non virulent and does not destroy the cell. However if the prophage undergoes any stress or mutation or is exposed to UV radiation, it may adopt the lytic cycle and become infective.