What did the Ancient Greek and Romans use to magnify objects?

Answers

Answer 1

Answer:

They used clear glass

Explanation:

Answer 2

Answer:

Most ancient lenses are convex and were used to magnify. At Carthage there are 14 glass lenses and two of rock crystal stored in a drawer in the museum; they have apparently never been displayed.

Explanation:


Related Questions

Identify: what are the reactants of anaerobic cellular respiration? What are the products?

Answers

products Carbon dixoide, reduced species, ATP

Explanation:

reactants

glucose, electron acceptor (not oxygen)

Monthly trash removal cost is increasing by 25% this month. If the current cost is $300, what will the new monthly cost be?

Answers

Answer: $375

Work in picture:

DOES ANYONE KNOW THIS ANSWER PLEASE

Answers

It’s a facilitated diffusion!
Facilitated diffusion= high to low concentration= has a protein channel

27) C: H.20 + 60, + ADP + P > 6CO2 + Molecule A + ATP

What is molecule A in the formula above?
Need help

Answers

Answer:A molecule is an electrically neutral group of two or more atoms held together by chemical ... Single molecules cannot usually be observed by light (as noted above), but small molecules and ... The molecular formula reflects the exact number of atoms that compose the molecule and so characterizes different molecules.

Explanation:

1.
2.
3.
4.
What is the Answer?

Answers

Answer:

the answer is 3

Explanation:

i need a answer plzzzzzzz thanks :p

Answers

Answer:

C

Explanation:

Which of the following are examples of autotrophs/ producers? Select all that apply,
Birds
Trees
Algae
Cactus
Deer

Answers

Trees, Algae, Cactus all apply

Man has a haploid life cycle.

True
False

Answers

Man does not have a haploid life cycle. Haploid life cycle is observed in most of the single-celled organisms. Thus, the given statement is false.

What is haploid life cycle?

The haploid life cycle is the simplest type of life cycle. It is found in most of the single-celled eukaryotic organisms. Organisms with a haploid life cycle spend the majority of their lives in haploid forms as haploid gametes. When these haploid gametes fuse, they form a diploid zygote.

The life cycle of Man is an example of diploid life cycle. The human life cycle involves a mature human cell (2n), eggs are produced by meiosis in the ovary of a woman, and sperms are produced by meiosis in the testis of a man. The eggs and sperm combine in fertilization to form a diploid zygote (2n).

Learn more about Haploid life cycle here:

https://brainly.com/question/772644

#SPJ2

What is the flow of molecules in active transport?

Answers

Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. The particles move against the concentration gradient , using energy released during respiration .

hey! if you help me out with this you’re sooooooo swag
(i’m about to give up on life)

Answers

Answer:

I can't see the questions sorry :(

HELPPPPPP!!! ASAPPPPP!!!!

Which of the following animals exhibit asymmetry?
sea sponge
frog
sand dollar
jellyfish

Answers

Answer:

sea sponge

Explanation:

everything else is symmetrical, sea sponges are known for being whacky shapes and sizes and are never symmetrical

A coastal area that once supported a thriving fishing industry is overfished. The number of species found living in the marine ecosystem continues to decrease. Which of these activities is most likely to increase the natural biodiversity in the area

Answers

Answer:

The answer is "Building artificial reefs and limiting fishing activity".

Explanation:

A variety of different methods could be used to construct an artificial island, which is most habitats are built to create a coral through using raw parts, and farming is the farming company, both "the creation of artificial reefs and restriction of fisheries" the activities are used to control environmental ecosystems throughout the region.

Answer:

Building artificial reefs and increasing fish activity

Explanation:

How do the chromosomes in most cells of an organism, such as the leaf cells of a plant, compare to the chromosomes in its reproductive cells, which are sperm and egg cells

Answers

Chromosomes in "most cells of the organism"(somatic cells) are diploid and the chromosomes are grouped in pairs while the chromosomes in reproductive cells are not paired so there are half the number that would be found in somatic cells so the sex cells are haploid.

If two different species belong to the same family, then they also belong to the same _______. *
Kingdom
Class
Order
All of the above are correct

Answers

Answer:

All of the above

Explanation:

The order is Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.

If it is a smaller one it is always in the ones above it.

Which ones are correct?

Answers

Answer:

25%

Explanation:

One out of 4 boxes will have a large B, 25 x 4 = 100, thus your answer is 25%.

Im a few sentences, describe major advantages to an organism that reproduces sexually.​

Answers

Organisms that reproduce sexually have genetic variation in their offspring which means they will not all be alike or the same, this allows higher chances of survival and diversity. With the diversity and variation, there will be the ability to new environments and allows for a survival advantage. When disease hits, not everyone will be effected by it because of the variation in genes, some will have a natural resistance to it while others may be more susceptible.

the other liquid waste product in cellular respiration is

Answers

Answer: During the process of cellular respiration, carbon dioxide is given off as a waste product. This carbon dioxide can be used by photosynthesizing cells to form new carbohydrates. Also in the process of cellular respiration, oxygen gas is required to serve as an acceptor of electrons.

Explanation: Hope dis helps :)))))  

Answer:

the waste products are carbon dioxide and water

7th grade science questions


How do living creatures produce light?
Describe two ways that bioluminescence is useful to the firefly?
How have coal miners made use of bioluminescence?

Rudolph is famous for his glowing red nose
What could possibly make his nose emit light?
Why would the glow of his nose be red?

Please don't answer just for points, I need this to be done by today! Thank you for your time.​​

Answers

Answer:

Bioluminescence is the production and emission of light by a living organism

Explanation:

Bioluminescence occurs through a chemical reaction that produces light energy within an organism's body. For a reaction to occur, a species must contain luciferin, a molecule that, when it reacts with oxygen, produces light. ... Many organisms also produce the catalyst luciferase, which helps to speed up the reaction.

Most fossils are dug up from sedimentary rock layers. Small pieces of an animal's remains become squeezed between the layers of this sediment. Over long periods of time, they are buried under more and more layers of sediment that piles up on top of it.
True or False?

Answers

True!! Hope this helps :)

Transcribe the strand of DNA CTA AGG TAG

Answers

CTA AGG TAG
GAT TCC ATC

In order to do this on your own all you need to do is reverse the letters A - T C - G

30 Points will give brainliest

Which of the following statements is true according to the food web shown above?
A.
Energy flows directly from the Sun to consumers.
B.
Energy flows from consumers to decomposers and from decomposers to consumers.
C.
Energy flows from producers, consumers, and decomposers to the Sun.
D.
Energy flows from producers and consumers to decomposers.

Answers

Answer:

the answer to this question is b

Answer:

D

Explanation:

I hope this is correct and have a great day

a bowling ball hitting pins and they fly backwards whicch
Newton’s law

Answers

Answer:

3rd. Every action has the same and equal reaction

Explanation:

Answer: 1st Newton Law.

Explanation:

Newton's first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force.

A phagocytic cell engulfs a bacterium. This process is known as....

A endoplasmosis
B exocytosis
C passive transport
D endocytosis

Answers

Answer:

D endocytosis

Explanation:

I just found it it's called phagocytosis which is a process of endocytosis

The cell stops being able to allow things into or out of its body. It starves. The
organelle that must be broken is the________

Answers

Answer:

The correct answer is - cell membrane.

Explanation:

Cell membrane or plasma membrane is the outer structure that enclosed the cell-matrix and cell organelles and acts as a barrier to the substances and things to move in or out of the cell and allows only specific substances and molecules to move in and out of the cell.

If the cell membrane is not performing its function properly it might result in blocking the various nutrients and other essential molecules to move in and metabolic substances to move out of the cell.

Answer:

Cell Membrane

Explanation:

I just took a test

Brainliest if correct pls

Photosynthesis and cellular respiration differ in which of the following
ways?
O The main source of chemical energy in cellular respiration is water.
The energy conversion in cellular respiration takes place in the chloroplast.
O The main source of energy in cellular respiration is glucose.
The final product of cellular respiration is electromagnetic radiation.

Answers

Answer:

the main source of energy in cellular respiration is glucose.

Explanation:

photosynthesis creates glucose out of co2 h2o and sunlight. while cellular respiration is almost exactly the opposite.

The ways in which photosynthesis and cellular respiration differ is that the main source of energy in the case of cellular respiration is glucose. Hence, Option C is the correct answer.

The photosynthesis and cellular respiration processes are interlinked with a significant relationship. The products of one process act as reactants in the other. Some of the significant differences between both processes are mentioned as follows:

Photosynthesis takes place only in phototrophs such as plants and algae while cellular respiration can take place in all the living forms. Photosynthesis completely takes place in chloroplasts and cellular respiration in Mitochondria. Glucose is made by the process of photosynthesis while glucose is utilized in cellular respiration to make molecules of ATP.

Thus, we can conclude that photosynthesis and cellular respiration differ specifically by the main source of energy. Hence, option C is the correct answer.

Learn more about cellular respiration here:

https://brainly.com/question/13721588

A scientist discovers a new type of eukaryotic cell that does not contain mitochondria. As a result of this difference, the scientist predicts that the cell is most likely to be different from other eukaryotic cells in which way? A.In the way it releases energy from food molecules B.In the way it maintains homeostasis with its environment C.In the way it reproduces D.In the way it evolves

Answers

Answer:

A. In the way it releases energy from food molecules

Explanation:

This is because, the mitochondria is the part of the cell that produces energy from food molecules. Since this cell does not contain a mitochondria, it will thus affect the way it releases energy from food molecules.

the light-collecting units of a chloroplast are the

Answers

Answer:

Thylakoids

Explanation:

proteins in the thylakoid membrane organize chlorophyll and other pigments into clusters known as photosystems. And are the light-collecting units of the chlorophast.

3. Convection is the transfer of heat through the
rising and sinking of a fluid. A student is
constructing an explanation for how convection
currents form in the mantle. Which statement
would be most useful for the student to include in
the explanation?
A. Earth's temperatures increase with
.
depth.
B. The mantle is the thickest of Earth's
four main layers.
OC. The mantle contains gases mixed with
rock.
D. Temperatures are about the same
throughout the mantle.

Answers

It’s either A or D and I’m leaning towards A but at the moment I don’t know yet

Bone is not a solid matter.
OA
True
O B. False

Answers

Answer:

FALSE

Explanation:

commen sense

Hello,

The answer is True.

Further explaining:

Bones are actually hollow tubes, if they were solid it would be a lot heavier. A adult usually has 206 bones which are hollow.
Hope this helps!
Brainliest?

What are the answers here? Select all that apply.

Answers

Second , fourth and last

Answer:

2,4,and 7

I hope this helps!

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