Answer:
11 Scientists
Explanation:
1. Hans and Zacharias Janssen (1590): They created the first compound microscope with more than one lens.
2. Robert Hooke (1667): He details the discoveries he made with the microscope in his book, 'Micrographia'.
3. Anton van Leeuwenhoek (1675): He discovered bacteria with the help of the microscope.
4. Joseph Jackson Lister (1830): He discovered that to get a clearer magnification, weak lenses ought to be used at different distances.
5. Ernst Abbe (1878): Formulated a mathematical theory that showed the relationship between resolution and the wavelength of light.
6. Richard Zsigmondy (1903): Discovered the ultra microscope that enabled the examination of specimen beyond light's wavelength.
7. Frit's Xernike (1932): invented the phase-contrast microscope.
8. Ernst Ruska (1938): He invented the electron microscope.
9. Gerd Binnig and Heinrich Rohrer(1981): Both discovered the scanning tunnel microscope.
Answer:
1. Hans and Zacharias Janssen (1590): They created the first compound microscope with more than one lens.
2. Robert Hooke (1667): He details the discoveries he made with the microscope in his book, 'Micrographia'.
3. Anton van Leeuwenhoek (1675): He discovered bacteria with the help of the microscope.
4. Joseph Jackson Lister (1830): He discovered that to get a clearer magnification, weak lenses ought to be used at different distances.
5. Ernst Abbe (1878): Formulated a mathematical theory that showed the relationship between resolution and the wavelength of light.
6. Richard Zsigmondy (1903): Discovered the ultra microscope that enabled the examination of specimen beyond light's wavelength.
7. Frit's Xernike (1932): invented the phase-contrast microscope.
8. Ernst Ruska (1938): He invented the electron microscope.
9. Gerd Binnig and Heinrich Rohrer(1981): Both discovered the scanning tunnel microscope.
Explanation:
WILL MARK BRAINLYEST
10. A student was observing a cell under a microscope. She claimed the cell she was studying was an animal cell.
Below is her drawing of the cell she observed.
What evidence would best support her claim that the cell was an animal cell?
The cell had no ribosomes.
The cell had no cell wall.
The cell had a vacuole.
The cell had a nucleus.
Answer:
Cytokinesis, or “cell motion,” is the second main stage of the mitotic phase during which cell division is completed via the physical separation of the cytoplasmic components into two daughter cells. Division is not complete until the cell components have been apportioned and completely separated into the two daughter cells. Although the stages of mitosis are similar for most eukaryotes, the process of cytokinesis is quite different for eukaryotes that have cell walls, such as plant cells.
1. How did Aristotle classify organisms, and why did
his method prove inadequate?
ANSWER ASAP!!!!!!! Which soft tissue creates all blood cells?
A. the spleen
B. the thymus
C. the tonsils
D. bone marrow
Answer:
D
Explanation:
Bone marrow contains stems cells which then turn into immature blood cells and they mature there. kinda like a school for young blood cells. they also make white blood cells and platelets.
Answer:
D ( the bone marrow)
Explanation:
Bone marrow is soft, gelatinous tissue that fills the medullary cavities, the centers of bones.
why is biodiversity in trees good for ecosystems?
Answer:
The basis for these benefits are functions that constantly take place in forests: The trees conduct photosynthesis, grow, produce offspring, defend themselves against hungry insects and deer, fight off pathogens and protect themselves against drought.
Explanation:
Have a nice day :)
Hope this helps!
How do homologous and analogous structures show evidence for evolution?
[tex]\large\mathcal{ANSWER}[/tex]
Homologous structures provide evidence for common ancestry, whileanalogous structures show that similar selective pressures can produce similaradaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used todetermine species' relatedness.
Evidence for evolution is provided by homologous structures. These are structures shared by related organisms that were inherited from a common ancestor. Other evidence for evolution is provided by analogous structures. These are structures that unrelated organisms share because they evolved to do the same job.
How do homologous and analogous structures show evidence for evolution?
Homologous structures provide evidence for
common ancestry, whileanalogous structures show that similar selective pressures can produce similaradaptations (beneficial features). Similarities and differences among biological molecules (e.g., in the DNA sequence of genes) can be used todetermine species' relatedness.
Imagine you had to sort all of the living things on earth into groups. How would you sort them?
All of the Earth's living organisms can be divided into distinct categories in a variety of ways, but the most popular manner is through the use of a hierarchical classification scheme called taxonomy.
What is Taxonomy hierarchy?In this hierarchy, organisms are grouped based on shared traits, with each level getting more specialized as you descend.
From the broadest to the narrowest, the main taxonomic levels are:
The domain level of classification divides organisms into different cell types, and it is the widest level of classification. Eukarya, Archaea, and Bacteria are the three domains.
Kingdom: This level of classification divides organisms into groups based on their overarching traits and cellular make-up. Animalia, Plantae, Fungi, Protista, Archaea, and Bacteria are the six kingdoms.
Phylum: This level of classification divides creatures into groups depending on the structure and organization of their bodies.
Class – Based on similar structural, physiological, and behavioral traits, organisms are grouped at the class level.
Order: Organisms are categorized at the order level according to shared traits within a class.
Family: Within an order, organisms are grouped at the family level based on shared traits.
Genus – Based on their evolutionary connections and similar traits, species are grouped at the genus level.
Species - The species level of classification is the most detailed and divides organisms into groups based on their propensity to interbreed and give birth to live offspring.
Based on their traits and evolutionary connections, all species of life on Earth can be divided up into separate groupings using this classification method.
Therefore, all of the Earth's living organisms can be divided into distinct categories in a variety of ways, but the most popular manner is through the use of a hierarchical classification scheme called taxonomy.
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During a fight-or-flight response, which of the following is not an effect on the animal's body?
A. Increased heart rate and breathing B.ncreased digestion
C.Relaxed bladder
D.Increased blood flow to the muscles
Answer:
B,thats the only flight or fight resopnse in the animals body i could think of at the time. increase digestion i dont think the digestion would be effected by the fight-or-flight response.in my opintiton everything else seem like everything else would seem to be affeacted.
Clouds form when water vapor in the air condenses around tiny particles in the air called condensation nuclei
Answer:
Clouds form nuclei of condensation, where partial pressures of water accumulate.
Explanation:
When the partial pressure of water increases, it condenses in large quantities and due to differential pressures with the pressures of the earth's surface, rains or sudden changes are triggered.
System that is responsible for the procreation of a species
A. Reproductive
B. Integumentary
C. Immune/Lymphatic
D. Endocrine
E. Skeletal
Answer:
A
Explanation:
reproductive means reproduction= A
Choose all the answers that apply.
Saturn;
is more dense than Earth
would sink in water
has a tilted axis
has a core of liquid hydrogen
is more massive than Earth
Answer:
More massive then Earth, and Has a tilted axis.
Explanation:
whats best describes the relationship between cells, DNA, and proteins
Which option identifies the effects of poorly managed grazing leading to overgrazing.
increase in erosion
increase in weeds
increase in inedible grasses increase in animal populations
Answer:
increase in animal populations
If someone could help me figure out how to do these sorts of problems I would really appriciate it
Answer:
The possible genotypes are:
[tex]I^AI^B, I^AX^H, I^AX^h, I^BI^B, I^BX^H, I^BX^h, X^HX^H, X^HX^h[/tex]
good luck, i hope this helps :)
What caused the massive erosion of the
Galapagos Islands in the late 1900s?
A-reduced sea turtle population due to monofilament nets
B-reduced vegetation due to goats
C-increased population of sea cucumbers due to new laws
D-increased recycling due to conservationists
Answer:
A Reduced sea turtle population due to monofilament nets
Explanation:
Hope this helped you
I believe that the correct answer is C-increased population of sea cucumbers due to new laws
How many chromosomes will this human zygote have?
Answer:
46
Explanation:
a zygote is formed from fertilization where the sperm (23 chromosomes) intersects the ovum (23 chromosomes)
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The formation of male and female sex cells is known as
A)
gametogenesis
B)
budding
C)
sporulation
D)
regeneration
Answer:
it should be C
Explanation:
I hope this helps. Let me know if I am wrong
Which part of the karyotype reveals a genetic abnormality?
A. A
В. В
C. С
D. D
plzzz answer asap
If brown eyes are dominant to blue eyes, what phenotype would be expressed if the genotype is bb
brown because brown is dominant to blue eyes
WILL GIVE BRAINLIEST!!
Which of the following is NOT a factor to consider when determining a person's optimal health?
A) nutrition
B) education
C) genetics
D) exercise
E) stress level
Explanation:
B. education pls mark brainliest if this helps :)
Answer:
B) education
Explanation:
Health is determined by nutrition, genetics, regular exercise, and stress levels.
The synthesis of structure X occurred in the...
A) cytoplasm
B) lysosome
C) ribosome
D) nucleus
Answer:
b
Explanation:
because it is science and I am in high school and I got this question
Which of the following is NOT a type of plate boundary?
a.
Convergent
c.
Transform
b.
Subduction zone
d.
All of the above are types of plate boundaries
The "subduction zone" will not be a type of plate boundary.
What is subduction zone?A subduction zone occurs when two tectonic plates collide and one plate dives through into the mantle beneath another plate.
What is plate boundary?The boundary among two plates would be known as a tectonic plate boundary. The plate is moving slowly, continuously, and in a variety of directions.
Therefore, the "subduction zone" will not be a type of plate boundary.
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What is an animal that eats producers called?
producers
O a
Ob
ос
carnivores
consumers
Od
herbivores
I’m
Answer:
The second trophic level consists of organisms that eat the producers. These are called primary consumers, or herbivores. Deer, turtles, and many types of birds are herbivores. Secondary consumers eat the herbivores. Tertiary consumers eat the secondary consumers.
Explanation
An animal that eats producers is called herbivore. Therefore, option (D) is correct.
Herbivores eat plant matter such leaves, stems, fruits, and seeds. These organisms get energy and nutrients from producers, the main source of organic matter in ecosystems.
Cows, rabbits, deer, and many insects are herbivores. Herbivores transform plant biomass energy into a form that higher trophic levels can consume, making them vital to ecosystem energy and nutrient cycles. Therefore, option (D) herbivore is the correct option.
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for each type of the genotypes below determine what phenotypes would be possible.
Answer:
1. Purple petals
2.Purple petals
3. I can't rly tell if that is a lowercase of uppercase p but if they are lowercase then white and if they uppercase then purple
4. Brown eyes
5. Brown eyes
6. Blue eyes
Explanation:
If there are uppercase letters at all the trait is dominant and vice versa for lowercase
3 Which of the following are not biotic or abiotic factors in an ecosystem? A B C water and air rocks and energy plants and animals cultural components D
Answer:
cultural
Explanation: this is the only one that is not biotic or abiotic
can you guys help me please its pretty easy
The process by which the organisms that are better adapted to the environment survive and reproduce is called
.
Answer:
Natural selection
Explanation:
Answer:
The awnser is Natrual Selection :)
Explanation:
Hi here is your awnser: Natural selection is the process by which organisms with variations most suited to their local environment survive and leave more offspring. In natural selection, the environment—not a farmer or animal breeder—influences fitness. Well-adapted individuals survive and reproduce.
A white light is shone onto a blue book. Explain why we see the book as being blue in colour.
A wave is propogating (produces or generates) energy from left to right. The particles of the medium are moving back and forth from left to right. What is this type of wave?
surface wave
longitudinal
transverse
electromagnetic
Answer:
transverse waves
Explanation:
I need help with this is for tonight!!!
The chemical digestion occurs mainly in the_
Answer: Small Intestine
Explanation: Digested chyme from the stomach passes through the pylorus and into the duodenum. Here, chyme will mix with secretions from both the pancreas and the duodenum.