which two scientists are credited for the invention of the first microscope?

Answers

Answer 1

Answer:

Hans and Zacharias Janssen

Explanation:

Answer 2

Answer

Zaccharias Janssen and Hans Lipperhey

Explanation:

im smort


Related Questions

what would happen to a signaling pathway if phosphatases had reduced levels of function?

Answers

Phosphates and kinases work together so I’d phosphateses are reduced in function, their function in Signal transduction pathways would be reduced.

What differences are there between heartwood and sapwood?​

Answers

Answer:

Heartwood                                                     Sapwood

1 Cells are comparatively older. Cells are comparatively younger.

2 Also called as ‘Duramen’ Also called as ‘Alburnum’

3 Heartwood is dark colured Sapwood is light coloured.

One of the carbohydrates is a building block of a plant's cell wall. It is

Answers

Answer:

hshdghdisuahzggdhxdhdnndnxhdj dhhdgdhdghdgdgehdyjebdjdhdydjshdjudydjdjdjxjxjdjdjdjdjdjdjdjdhdjdhydudueuhhcgduhxydjyduydjdhdyudjddhhdudusudidhdddfrdiiwousiisosooss

Answer:

cellulose is a building block of a plant cell wall

Explanation:

what would make the earth's plates stop moving

Answers

Answer:

Slab Resistance would make the earth's plates stop moving

Explanation:

Answer:

Brainiest plz and hope this answer helped let me know if you need any more help I am glad to help!

Explanation:

what would make the earth's plates stop moving?

If the earths mantel would be really cold then the earth's plates would stop moving.

Poly sheets with ultraviolet light inhibitors last 10 to 12 years before they need
to be replaced

Answers

Answer:

Plastic is mostly decomposed by UV radiation, and it takes two years to more than 1 million years to decompose it. While many pure plastics cannot absorb UV radiation, the presence of catalyst residues and other impurities will often act as receptors

Explanation:

Hope this helps my G.

Please help!!! Quickly!!!!

Answers

[tex]▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ [/tex]

The Correct choice is " a "

Many organisms eat at multiple trophic levels.

Answer:

The feeding relationships of organisms in the real world is almost always more complex than suggested by a food chain. For that reason, the term food web is more accurate than is food

chain.

Explanation:

hope its hepl

how long does it take to recover from appendix surgery

Answers

two to four weeks, that's what l was told by my teacher

Aquifers are ___ . A. Structures used to transport water from city to city

Answers

Answer:

Ground water

Explanation:

ez

4. Which structure is not unique to plant cells?

Answers

Answer:

The plant cell has a plant wall Chloroplast.

Explanation:

this is not found in animal cells.

Answer:

lysomes or centrosomes

PLEASE HELP ASAP!!
Adjust the length. How does the length of a pendulum affect its period?

Answers

Answer:

The longer the length of string, the farther the pendulum falls and therefore, the longer the period

Explanation:

a population characteristic, such as a population mean, is called

Answers

Answer:

Parameter

Explanation:

Every Characteristic a population has is called a Parameter

skin can regenerate effectively even after considerable damage has occurred because

Answers

Answer:

Skin can regenerate effectively even after undergoing considerable damage because stem cells persist in both the epithelial and connective tissue components of skin. In response to injury, cells of the stratum basale (germinativum) replace epithelial cells while mesenchymal cells replace lost dermal cells.

Explanation:

yw!

B. What structures are missing from the root hair cells?

Answers

Answer:

The function of root hairs is to collect water and mineral nutrients that are present in the soil and take this solution up through the roots to the rest of the plant. As root hair cells do not carry out photosynthesis, they do not contain chloroplasts.

Explanation:

Mitochondria are missing from root hair cells.

Root hair cells are specialized plant cells found in the roots of plants. Their primary function is to absorb water and minerals from the soil. To achieve efficient absorption, root hair cells have evolved specific structural adaptations.

Root hair cells are elongated and have a large surface area due to their elongated projections called root hairs. This increased surface area enhances their ability to come into contact with the soil, maximizing water and nutrient absorption. However, due to their focus on absorption and their short lifespan, root hair cells exhibit some structural simplifications, such as the absence of certain organelles.

One notable organelle missing from root hair cells is the mitochondria. Mitochondria are the "powerhouses" of cells, responsible for generating energy in the form of ATP through cellular respiration. Since root hair cells are mainly involved in absorption rather than energy production, they have a reduced need for extensive energy generation. As a result, they don't require as many mitochondria as other cells that are highly metabolically active.

To learn more about root hair cells, here

https://brainly.com/question/21682037

#SPJ3

Which of the following is required for the sodium-potassium pump to transport potassium ions into an animal cell?

High intracellular concentrations of potassium
High intracellular concentrations of sodium
Low intracellular concentrations of potassium
Energy from ATP

Answers

Answer: Energy from ATP

Explanation:

How do we REMOVE water vapor (a gas) from our atmosphere?

Answers

Answer:

to get the heat of the planet

Explanation:

How do genes control characteristics? Please help I’ve got a test tomorrow. Thank you!

Answers

Answer:

the proteins in the gene

Explanation:

Answer:

Genes are sections of DNA that are carried on chromosomes and determine specific human characteristics such as eye color and height.the proteins that genes carry are the ones responsible for controlling these characteristics or traits.

I hope this helps

3-5 sentences for each question pls !!! need help ASAP
2. A volcano erupts 40 miles from an owl’s ecosystem. Ash from the eruption blocks sunlight over your ecosystem for several (7-10) months.
a. Explain what happens within the food web in the weeks that follow the eruption.
b. The ash clears and several more months go by. What do you think will happen to your ecosystem?

Answers

Answer:

a. Sunlight cannot penetrate through the ash clouds. thus photosynthesize won't occur. so the food chain will begin to collapse from the producer and primary consumer. owls will be out thinking that it's night. they will catch fish resulting in an imbalanced ecosystem. the aquatic population will decrease. then it's the doom days for owls. they will emigrate or will die.

b. the ecosystem will restore. that's how nature works.

The volcanic eruption destroyed the owl ecosystem because it prevented the sun's light from entering, so the food web of the ecosystem was destroyed because there was no food, and a new ecosystem will grow after many months.

What is the ecosystem?

The ecosystem has both biotic and abiotic components, and there are many food chains and food webs present in the ecosystem, so the volcanic eruption harmed the ecosystem and killed the populations present, but after many months, when the ashes from the volcanic eruption are cleared, a new population will grow and a new community will be seen.

Hence, the volcanic eruption destroyed the owl ecosystem because it prevented the sun's light from entering, so the food web of the ecosystem was destroyed because there was no food, and a new community will grow after many months.

Learn more about the ecosystem and volcanic eruption here.

https://brainly.com/question/18403882

#SPJ2

Which is a characteristic of life that is only found in living things?


made of cells

made of cells

able to use energy

able to use energy

able to move

able to move

made of carbon compounds

Answers

All living organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, growth and development, regulation, homeostasis, and energy processing. When viewed together, these characteristics serve to define life.

The size of the cell is related to its function True/false

Answers

ANSWER:

TRUE

EXPLANATION:

BECAUSE THE SIZE OF THE CELL IS RELATED TO ITS FUNCTION.

HOPE IT HELPS YOU

CAN YOU BRAINLEST ME

Answer:

For example, the nerve cells are elongated in shape and are thin and dainty. ... An animal cell does not have a cell wall

Explanation:

The size and shape of a cell are related to its function and are governed by four factors—(1) surface-volume ratio, (2) nucleocytoplasmic ratio, (3) rate of cellular activity, (4) cell associations. (1) Surface-volume Ratio: ADVERTISEMENTS: The cell membrane separates the inner content from the outer environment.

NEED HELP ASAP PLEASEEE!!
Which item is NOT part of an effort to reduce health care workers exposure to hazardous chemicals?
A: protective storage
B: sterilization agents
C: pre-measured doses
D: needleless administration

Answers

Answer:

D: needleless administration

Explanation:

Answer: sterilization agents

Explanation:

Just the assignment

What is the function of bud scales?​

Answers

Answer:

Bud scales act as protection for newly formed leaves and branch growth. They form at the end of the growing season once the leaves have fallen off the branches. Bud scales form in preparation for both new leaves and the extension of a stem's growth.

which structure mediates the attachment of spores to a surface on which to grow?

Answers

Answer:

holdfast

Explanation:

what pathogen causes TMV

Answers

Answer:

The tobacco mosaic virus infects tobacco and lots of other closely related species like tomatoes and peppers. It is transmitted by contact between plants, either naturally or on the hands of farmers. It infects the chloroplasts of plant leaves and changes their colour from green to yellow or white in a mosaic pattern.

alkali metals are listed in the first column of the periodic table. this tells you that

a they are highly reactive

b they have only one electron in their outer orbital shells.

c their nuclei contain only one neutron

d both a and b​

Answers

Answer:

B. they have only one electron in their outer orbital shells


Decomposers play an important role in the carbon cycle.
True
False

Answers

Answer:

true

decomposers break down organisms and return the carbon in their bodies to the atmosphere.

tell us one way that saturated fats and unsaturated fats are different.

Answers

One difference is the number of double bonds in the fatty acid chain

Why do endemic species have a greater risk of becoming endangered than widespread species?​

Answers

Answer:

Many rare and/or endemic species exhibit one or more of the following attributes which make them especially prone to extinction: (1) narrow (and single) geographical range, (2) only one or a few populations, (3) small population size and little genetic variability, (4) over-exploitation by people, (5) declining ..

A dietician asks a patient about the food that the patient eats and makes the table below to summarize the results.MacromoleculeSuggested percentage of dietActual percentage of dietCarbohydrates45–65%70%Lipids20–35%5%Proteins10–35%25%Based on the table, what advice do you think that the dietician will give the patient?The patient should increase the amount of lean meats (proteins) and decrease the amount of oils in his or her diet.The patient should decrease the amount of lean meats (proteins) and increase the amount of oils in his or her diet.The patient should decrease the amount of rice and pasta and increase the amount of oils in his or her diet.The patient should decrease the amount of rice and pasta and increase the amount of lean meats (proteins) in his or her diet.

Answers

Explanation:

The patients to decrease lean meat and increase

The patient should increase the amount of lean meats (proteins) and decrease the amount of oils in his or her diet. Therefore, option "A" is correct.

What are macromolecules?

Monomers are long chains of molecular subunits that comprise macromolecules, essentially polymers. Long polymers are present in proteins, carbohydrates, and nucleic acids. They are called macromolecules because of their large size and polymeric nature.

Macromolecules are able to speed up biochemical reactions, store and retrieve genetic information, provide structural support, and store fuel. The biological macromolecule is carbohydrates, lipids, proteins, and nucleic acids is an essential component of the cell.

Therefore, macromolecules are important for body function.

Learn more about macromolecules, here:

https://brainly.com/question/13277913

#SPJ7

Construct an explanation for that carbon hydrates are considered as a source of energy for the human body. Justify your answer with an evidence with your own words.


Please help out I’ll mark as brainlist

Answers

Explanation: Carbohydrates are mainly composed of Oxygen, Carbon and Hydrogen. the most popular carbohydrate that is compatible with the human body is glucose which is the final result of every Carb we take in. a glucose molecule has 6 carbon atoms. during glycolysis, a single glucose molecule is broken down into two pyruvate molecules. in there, the first couple of ATP is synthesized. at later steps of the cycle, more ATP molecules are reduced.

Please help me with this question! Right answers only!

Answers

B is the correct answer I hope it’s right
Other Questions
What did Thomson contribute to atomic theory?A. The discovery that positive charge is concentrated in a core, or nucleusB. The discovery that negative charge is concentrated in a core, or nucleusC. The discovery of negatively charged particles, now called electronsD. The idea that electrons have quantized amounts of energy Read this passage carefully, looking for examples of figurative language that support the storys theme--that nature can inspire people to use their imaginations.But the crowning glory was a taxidermists shop kept on Main Street by a man named Sander. Yan spent, all told, many weeks gazing spellbound, with his nose flat white against that window. It contained some fox and cat heads grinning ferociously, and about fifty birds beautifully displayed. Nature might have got some valuable hints in that window on showing plumage to the very best advantage. Each bird seemed more wonderful than the last.RIGHT ANSWERS ONLY.Which phrase is an example of personification that supports the storys theme about the inspirational value of nature?a. more wonderful than the lastb. weeks gazing spellboundc. about fifty birds beautifully displayedd. fox and cat heads grinning ferociously why does the light of black body radiation change The Parthenon in Athens, is an example of what type of structure? identify the person who most precisely expresses a sense of nationality. pls help true or false, Kramer is sitting on his porch one day when he sees Jerry go into his house with a new television set. Kramer decidesthat he must have Jerry's TV so he puts together a plan to steal the set. That night, after Jerry has left his house, Kramercrosses Jerry's lawn and climbs up to Jerry's back porch. Kramer then wraps his hand in a towel and puts his fist througha window. As soon as the window breaks, Jerry's alarm goes off and the police arrive. Kramer is arrested and chargedwith Burglary. If Kramer argues that he did not commit burglary because he never entered Jerry's house, he will probablybe acquitted: what does f(9)=5x+12 equal? Which of the following statements is false about photosynthesis and cellular respiration?O Photosynthesis uses carbon dioxide.O Cellular respiration gives off carbon dioxide.O Photosynthesis makes glucose.O Both photosynthesis and cellular respiration occur in all living things. is refusing to hold wrong against another person. Why tides pass over all world? Other effects of this phenomenon Definition: This refers to any physical feature that serves as a separation between two political units roblem > Which statement is true? A Squares and rectangles are quadrilaterals, but rhombuses are not B Rhombuses and trapezoids are quadrilaterals, but rectangles are not Squares, rectangles, and rhombuses are quadrilaterals, but trapezoids are not D Squares, rectangles, rhombuses, and trapezoids are quadrilaterals.[tex]thx \: for \: the \: help \: no \: wrong \: answers[/tex] If Betty has 5 blue marbles,3 red marbles and 1 yellow marble what is the chance sus is will pick a red marble What does it mean to make an inference?(5 points)A.To converse directly with the reader through textB. To write with many explicit messages throughoutC. To help a person read a difficult piece of writingD. To figure out the hidden meaning of a text HELP ME PLZ Which of the following is NOT a function? Find the solution of sqrt(x+3) + 4 = 6 , and determine if it is an extraneous solution. (1 point) answersx = 1; not extraneousx = 1; extraneousx = 29; extraneousx = 29; not extraneous what are the conditions from our notes that affect natural Selection? Should i redo a test even if i got a D ( which is passing), or should i Try again? A person who has lots of ideas about how to make the project successful and is ready to put their ideas to work is:A. dependable.B. motivated.C. aggressive.D. delegating. on january 1, 2017, a subsidiary sold equipment to its parent for $520,000. the subsidiary's original cost was $200,000 and as of january 1, 2017, $20,000 in depreciation had been recorded on the subsidiary's books. at the date of sale, the equipment had a 10-year remaining life, straight-line. it is now december 31, 2021 (5 years since the sale), and the parent still holds the equipment. in the consolidation eliminating entries for 2021, depreciation expense is reduced by