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pentagon [3]
3 years ago
15

What was Anton van Leeuwenhoek's contribution in the development of cell theory?

Biology
2 answers:
rosijanka [135]3 years ago
3 0

He developed and improved the microscope. He was also the first to discover single-cell organisms that he called animalcules.

wlad13 [49]3 years ago
3 0

Answer: He invented the first practical microscopes which was used to see bacterial cell.

Explanation:

Microscopic study was done by Anton van Leeuwenhoek who was a draper and he had a great interest in microscope. This helped in mixing the lens and making a microscope which was used to see cell.

This microscope had a magnification of 270 x, which was of great help when visualizing such a small organism that was not seen by naked eyes.

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You have spent 24 hours traveling from the U.S to New Zealand, on quite a few airplanes with many stops. Because of the stress,
sladkih [1.3K]

Answer:

Higher than normal because yo have less plasma blood volume.

Plasma blood volume is mostly water and plays an important role in maintain the electrolyte concentration. Less plasma leads to dehydration.

5 0
3 years ago
Which best defines a diploid cell during meiosis?
wel

Answer:

a cell that has double the number of chromosomes as the daughter cell

Explanation:

diploid and double both start with d

7 0
3 years ago
Give 5 examples each of mutualism, communalism, and parasitism.
lys-0071 [83]
<span>1. Mutualism is a type of relationship that can be seen between two individuals of two different species to obtain benefits for both of individuals.

Examples : Coral polyps and zooxanthellae
                   bee and flower
                   Lichens
                   Rhizobium and root nodules
                   Ungulates and bacteria which live in their intestines

</span><span>2. Commensalism (this is the correct word) is a type of relationship between two organisms which belonged to two different species that one individual obtains benefits while other doesn't have any harm or benefit.

Examples : Remora and sharks
                   Orchids and trees
                   Pseudoscorpions and Beetles
                   Cattle Egrets and Livestock
                   hermit crab and sea anemone
</span>
3. Parasitism is a relationship between two organisms of two different species where one individual (parasite) gets benefits by harming other individual (host).
 
Examples : <em>Cuscuta</em> (parasite)<span> and angiosperms (host)
                    Parasitic viruses (parasite) and human (host)
                    Tape worms (parasite) and pigs (host)
                    Flukes (parasite) and human (host)
                    Parasitic bacteria (parasite) and human (host)</span>
7 0
3 years ago
Match each example with the subsystem it belongs to.
nataly862011 [7]

Answer:

igneous rocks - geosphere

oceans, frozen lakes - hydrosphere

gaseous nitrogen - atmosphere

sea animals, marine plants - biosphere

Explanation:

6 0
3 years ago
Which method would allow you to study the behavior of a tiger in its native habitat in India?
IgorLugansk [536]
They are solitary animals, especially males who do not live in groups, unlike the female which can form small groups of three or four members with their young.

The males are very territorial, so take care of their personal space and the females with whom they mate. To mark their territory, they spray the trees and rocks with a mixture of urine and musk.

Both male and female, they are related only in times of mating and reproduction. There have been cases where the male is responsible for feeding breeding if the mother has died.

The gestation period lasts between 98 and 108 days and give birth to two to four cubs weighing just over a kilo. They have a short life expectancy, as only get to live 10 to 12 years in the wild, but in captivity Natural mortality manage to live up to 26. It is mainly due to the fighting between males
3 0
3 years ago
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