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Ira Lisetskai [31]
3 years ago
9

Robert hooke coined the term cell when studying thin slices of cork. These ________ were the first cells observed because ______

__.
Biology
1 answer:
Brrunno [24]3 years ago
4 0

Robert hooke coined the term cell when studying thin slices of cork. these Dead

Plant Cells were the first cells observed because the thick cells.

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The domain _____ contains all eukaryotic kingdoms
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Should be Eukarya, I think
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Why are protozoa significant? Select all that apply. Protozoa contaminate the water supply. Protozoa do not contribute to a food
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Answer: Protozoa contaminate the water supply.

Some protozoa are parasites and cause diseases like malaria.

Protozoa have an important role in the food chain.

Protozoa are parasitic or free living single celled eukaryotic organisms. They are mostly found in water bodies.

Protozoa contaminate the water supply: Some of the protozoan species which are released from the human feces usually contaminate thee water, and causes waterborne infections in humans. Examples are Cryptosporium and Giardia. The infection occurs through drinking water or swallowing water from swimming pool.

Some protozoa are parasites and cause diseases like malaria: The Plasmodium is the genus belonging to the protozoan parasites. This malarial parasite is transmitted by female Anopheles mosquitoes to humans. The parasite multiply in the red blood cells causes symptoms like fever, anemia, flue, illness and may also cause coma and death.

Protozoa have an important role in the food chain: The protozoa species plays many roles in the food chain, they act as consumers, predators or prey, herbivores and decomposers. Their main function is to control the population of other species in the same habitat. They engulf small single celled bacteria, hence prevents excessive bacterial colonization act as predator. They also feed upon the algal species therefore, act as herbivores. They act as decomposers, as they feed upon the organic matter present in the bottom of the aquatic water body. They are the source of food for large worm and insect species.


5 0
3 years ago
Read 2 more answers
Shelly is pessimistic about her future. Her disinterest for everything around her, together with worry and rumination, make it d
mezya [45]

Answer:

cognitive

Explanation:

The symptoms of depression are characterized into three broad groups  

1. Cognitive – The common symptoms observed include constant negative thoughts, pessimism, feeling guilty for all bad happenings around them, thinking of ending their life

2. Behavioral – These include behavioral changes occurring in a person facing depression such as poor hygiene, inefficiency in work, constant crying, anti-social thoughts and behaviour and low energy

3. Emotional – Under this head a person feel sad, lonely, worthless and hopeless.

7 0
3 years ago
Chromosomes only exist inside gametes true or false
netineya [11]

The male human has a sperm cell and the female has an egg cell. The cells from the male and female that combine to form a zygote are called gametes. The human sperm and egg cells each contain 23 chromosomes. . A combination of gametes forms a zygote with 46 chromosomes. The type of cell division that produces gametes with half the normal chromosome number is the meiosis. Meiosis is the type of cell division used in sexual reproduction. It will occur in the testes and ovaries.<span>Chromosomes get shuffled when eggs and sperm are made. Though most adult cells contain two sets of chromosomes, sperm and egg cells are different. These special cells have just one chromosome from each pair. Which chromosome they get from each pair is random, making each sperm or egg cell unique. There is also a bit of mixing before the chromosomes are sorted into individual sperm or egg cells. Chromosomes from each pair in a mother or father, respectively, make contact and exchange pieces of DNA, creating hybrid chromosomes. </span>

8 0
3 years ago
Which part of the brain helps you learn new things in gym class?
natali 33 [55]

Answer:

Hippocampus

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The part of the brain that responds strongly to aerobic exercise is the hippocampus. It supports memory, learning, navigation and perception of space.

<h2>BRAINLIESST please if this helped!</h2>
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