who discovered cell?​

Answers

Answer 1

Answer:

Robert Hooke discovered cells

Answer 2

Answer:

Alexander Fleming discover the cell in our body


Related Questions

what do these polygons have in common

Answers

Explanation:

they all are congruent figures

Answer: A polygon is any shape made up of straight lines that can be drawn on a flat surface, like a piece of paper. Such shapes include squares, rectangles, triangles and pentagons but not circles or any other shape that includes a curve. Understanding shapes is important in mathematics.

Explanation:

All what I just wrote is all that on your assignment they have all that in common.

How many atoms does nitrogen dioxide have??

Answers

Answer: in one molecule of NO2 there is one nitrogen atom and two oxygen atoms.

Explanation: lol


SOMEONE PLEASE HELP

Examine the model of the carbon cycle select all of the processes that we turn carbon compounds to the atmosphere.

Answers

B, C, and E are the processes that release carbon compounds to the atmosphere

The processes that considerably turn carbon compounds into the atmosphere are the decaying of organisms, the respiration of animals, and emissions from automobiles and factories. Thus, the correct options for this question are B, C, and E.

What do you mean by the Carbon cycle?

The carbon cycle may be defined as a type of biogeochemical cycle through which carbo and its derivative products are exchanged among the various spheres of the earth's surface. Carbon is considered one of the main components of biological systems.

In the carbon cycle, rhe process of photosynthesis utilizes the carbon from the atmosphere in order to produce chemical energy in the form of glucose. While the excretion of animal waste products is responsible for nitrogenous compounds like urea or ammonia.

Except for these two, all other options are directly liberating carbon into the atmosphere which can easily be demonstrated in the carbon cycle.

Therefore, the correct options for this question are B, C, and E.

To learn more about the Carbon cycle, refer to the link:

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Can someone help lol

Answers

Answer:

False

True

False (it’s suppose to Be “on earth” not “at) or maybe it’s True

False

False (trophere)

False (nitrogen, oxygen is only 21%)

True

Explanation:

What is the number of chromosomes for diploid frog cells?
If a frog had 26 chromosomes would the cell be diploid or haploid?​

Answers

Answer:

What is the number of chromosomes for diploid frog cells?

26

If a frog had 26 chromosomes would the cell be diploid or haploid?

diploid

-TheUnknownScientist

Answer:

26

diploid .............

PLEASE HELP!!!!!!

Most nerves of one of the sense organs go to the spinal cord before they go to the brain. Which organ is
this? (Think of your own body.)

Answers

Answer:

Umm every sense of organs travels in the spinal cord.

Most nerves of one of the sense organs go to the spinal cord before they go to the brain, and that organ is the one that is involved in the reflex action because it happens in a very short time and is controlled by the spinal cord before the brain..

What is the significance of the reflex action?

Reflex actions are important because they allow the body to respond quickly to stimuli without waiting for the brain, and they can be especially important in situations where a quick response is necessary to avoid danger, such as when the hand touches hot substances and the hand suddenly goes back, which is due to the motor neuron action of the spinal cord.

Hence, most nerves of one of the sense organs go to the spinal cord before they go to the brain, and that organ is the one that is involved in the reflex action because it happens in a very short time and is controlled by the spinal cord before the brain.

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What are the 3 main parts of the
Endocrine System? (select all that apply)

Hormones
Cell receptors
Glands
Skin

Answers

Answer:

Hormones, Cell receptor and glands

Waht is Environment Secretary ​

Answers

Answer:

Thiru Shambhu Kallolikar IAS., Principal Secretary to Government, Environment and Forests Department, Government of Tamil Nadu

Answer:

Thiru Shambhu Kallolikar IAS., Principal Secretary to Government, Environment and Forests Department, Government of Tamil Nadu

what type of disorder does a monosomy have?

Answers

Nondisjunction. Monosomy would mean it's missing a chromosome.

PLEASE HELP WILL GIVE BRAINLIST!!!! Write a hypothesis to describe the relationship between earthquakes and tsunamis.

Answers

Answer:

Hypothesis: Earthquakes and tsunamis are caused by tectonic plates in the Earth's crust. When the crust moves, they occur, depending on the location of the crust.

Answer:

Most times a earthquake is what causes a tsunami, such as a deep ocean earthquake causing a tsunami to form. Most tsunamis are formed that way because deep ocean earthquakes create so much force.

Explanation:

please help >:((((

Your stomach is growling and your mouth is dry. You just remembered you skipped lunch today. After school you go to the fridge, eat an apple and drink some milk. A. What is the imbalance? B. How did the systems work together to correct the imbalance? C. What is the importance of the circulatory system in the case studies?

Answers

Answer:

C. What is the importance of the circulatory system in the case studies?

Explanation:

Whoever gets it right I will mark brainest
Please no links the sometimes don't work.
The climate of southeast Brazil is affected by a ____________ current
A. Warm
B. Cold.
C. Neutral

Answers

Answer:

C

Explanation:

The climate of Southeast Brazil is quite diverse in temperature. The climate in Brazil varies considerably from mostly tropical north to temperate zones south of the Tropic of Capricorn (23°26' S latitude).

write a 5-7 sentence paragraph explaining what happens to co2 levels in the world over the course of the year. add as much context and details as you can

Answers

Answer:

The amount of CO2 found in the atmosphere varies over the course of a year. Much of this variation happens because of the role of plants in the carbon cycle. Respiration happens all the time, but dominates during the colder months of the year, resulting in higher CO2 levels in the atmosphere during those months.

Explanation:

What is their role in the Antartic ecosystem
(Learpard seals)


HELP ME!!

Answers

Answer:

Explanation:

Leopard seals use their powerful jaws and long teeth to kill smaller seals, fish, and squid. These effective predators live in frigid Antarctic and sub-Antarctic waters, where they also eat penguins. They often wait underwater near an ice shelf and snare the birds just as they enter the water after jumping off the ice.

the length of bamboo grows much faster than that of thickness why?​

Answers

Using a slow- and fast-growing variant of bamboo, Wei and colleagues looked at cell division, growth, and gene expression (through transcriptomics, which measures all the genes being expressed by an individual) to discover which genes may be responsible for fast growth in bamboo. They found that the slow-growing variant had reduced expression of genes relating to cell wall construction, the plant hormone auxin (important for cell growth and cell division), and had irregular cell growth and cell walls. Wei and colleagues suggest that a reduced ability to produce and perceive auxin, combined with a weakened cell wall, are responsible for the slow growth seen in the bamboo variant.

explain what constitutes the internal environment

describe one structural and one behavioural adaptation of humans for retaining heat in cold environments ​

Answers

Answer:

Water based fluid

Explanation:

The internal environment consists of water based fluid in which the cells of the body present. A fluid called interstitial fluid or tissue fluid bathes the cells and provides essential nutrients to the cell. The human skin has fatty layers that helps to maintain internal heat which is produced by the body when the outside environment is cold. When there is cold in the environment, people lives in warm shelters and wear warm clothes in order reduce the impact of cold environment.

The role of which bodily system is to protect the body from diseases?

A. excretory
B. nervous
C. lymphatic
D. endocrine

Answers

Answer:

lymphatic

Explanation:

It contains your immune system that helps you fight off diseases

heat is to summer as cold is to?_____​

Answers

the answer is cold is to winter

Answer:

winter

Explanation:

no idea if this helps but have a good rest of your day/night <3 <3 <3

help me please, i need complete sentences

Answers

Answer:

Look below

Explanation:

(A) A fossil fuel is a fuel formed by natural processes, such as anaerobic decomposition of buried dead organisms, containing organic molecules originating in ancient photosynthesis that release energy in combustion

(B) After millions of years underground, the compounds that make up plankton and plants turn into fossil fuels. Plankton decomposes into natural gas and oil, while plants become coal. Today, humans extract these resources through coal mining and the drilling of oil and gas wells on land and offshore.

(C) These non-renewable fuels, which include coal, oil, and natural gas, supply about 80 percent of the world's energy. They provide electricity, heat, and transportation, while also feeding the processes that make a huge range of products, from steel to plastics.

(D)Global warming pollution

Choose all the answers that apply.

Chromosomes _____.

are tight coils of DNA
are carried on genes
always occur in pairs
can be analyzed in a karyotype
carry thousands of genes

Answers

Answer:

tight coils of DNA

always occurs in pairs

carry thousand of genes

am thinking of 3-digit number less than 300. The tens digit is less than the hundreds digit and the ones digit is less than the the tens digit. Which number am I

Answers

Answer:

-321

Explanation:

or something like that

describe the structure of an atom of argon-38 and argon-40

Answers

Answer:

Argon 38 has 18 proton and 20 neutron

Argon 40 has 18 proton and 22 neutron

Explanation:

isotope is same no of proton diff no of neutron

Both argon-38 and argon-40 have 18 protons but they have different atomic masses. The atomic mass of argon-38 is 38u while the atomic mass of argon-40 is 40u. Thus, they are isotopes.

What are isotopes? Some atoms contain the same number of protons (i.e. same atomic number) but they have a different number of neutrons (i.e. different mass numbers). These types of atoms are called isotopes.Argon element has three isotopes namely, argon-36, argon-38 and argon-40. All the three isotopes of argon have the same number of protons i.e. 18. But, all have different numbers of neutrons and thus, different mass numbers. Argon-36 has 18 neutrons, argon-38 has 20 neutrons and argon-40 has 22 neutrons. Thus, the mass numbers of argon-36, argon-38 and argon-40 are 36u, 38u and 40u respectively.

Thus, the structure of an atom of argon-38 and argon-40 is slightly different as they are isotopes. Argon 40 has more atomic mass than argon-38. But, both contain the same number of protons. They have similar chemical properties but different physical properties.

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How do the nonvascular plants reproduce?

Answers

Answer:

hope its help you stay happy

Indicate whether each of the following occurs in the ER (E), Cytoplasm (C), Golgi apparatus (G), lysosome (L) or mitochondria (M). Your answer would be a four-letter string composed of letters E, C, G, L and Monly (e.g. ECEM, please do not use spaces). You may choose the same letter twice or not choose it at all. This is an all or none questions, no partial credit will be given.
(1) Addition of the first GlcNAc oligosaccharides to the asparagine residue of a protein
(2) Synthesis of phosphatidylcholine
(3) Degradation of misfolded ER protein
(4) O-linked glycosylation

Answers

Answer:

EELG

(1) Addition of the first GlcNAc oligosaccharides to the asparagine residue of a protein occurs in the Lumen of the Endopslamic Reticulum

(2) Synthesis of phosphatidylcholine occurs in the Endoplasmic Reticulum

(3) Degradation of misfolded ER protein ossurs in the Lysosome

(4) O-linked glycosylation occurs in the Golgiapparatus

Explanation:

1. The covalent attachment of a carbohydrate to a macromolecule such as proteins or lipids is known as glycosylation.

N-linked glycosylation is a very common form of glycosylation and it occurs in eukaryotes in the lumen of the endoplasmic reticulum.

The addition of the first GlcNAc oligosaccharides to the asparagine residue of a proteinmos an example of N-linked glycosylation.

2. Phosphatidylcholine is synthesized through the CDP-choline pathway which occurs at the cytoplasmic face of the endoplasmic reticulum. Choline entering the cell is immediately phosphorylated by choline kinase, converting choline to phosphocholine.

Phosphocholine is then converted to CDP-choline by the second enzyme in the pathway, CTP:phosphocholine cytidylyltransferase (CT).

The phosphocholine moiety is then added to diacylglycerol in a reaction catalyzed by CDP-choline:1,2-diacylgylcerol cholinephosphotransferase to complete the synthesis of phosphocholine.

3. Lysosomes are the cell organelles which are responsible for the breakdown of proteins as well as other components of the cell. Misfolded proteins are identified and transported to lysosomes through chaperone-mediated autophagy, macroautophagy and endocytosis, where they are then degraded.

4. O-linked glycosylation is a form of glycosylation that occurs in eukaryotes in the Golgi apparatus.

11. Question: Imagine 20 babies were born. 10 had blue eyes, and 10 had brown eyes. What traits do their parents probably have?

Answers

Answer:

The correct answer is - brown heterozygous Bb and blue eye bb.

Explanation:

In the provided question it is given that there are 20 babies born, 10 babies had blue eyes and 10 had brown eyes. As it is known that brown eyes are dominant over blue eyes, therefore, on the basis of this we can say that all blue-eyed babies have a bb genotype and as brown eyes are dominant traits babies must have at least one copy of the B allele which represents brown eye trait.

case1:

Parent 1 : bb

parent 2: BB

   B      B

b  Bb   Bb

b   Bb   Bb

there are 100% brown eye offspring so this is not the case

case 2:

Parent 1 : bb

parent 2: Bb

   B      b

b  Bb   bb

b   Bb   bb

here, 50% brown eyes and 50% blue eyes offspring produced thus, the parent trait will be brown heterozygous and blue eye.

Which of the following is most clearly a benefit of genetic engineering?

Answers

The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering.

Answer:

The production of insulin hormone by the bacterial genes is the most likely benefit of genetic engineering-

Explanation:

production of human insulin through genetic modification of bacterial genes

D

Choose the correct connective tissue.

1)Bone to bone
2)Muscle to muscle

-ligament
-tendon

Answers

Explanation:

A tendon is a fibrous connective tissue which attaches muscle to bone. Tendons may also attach muscles to structures such as the eyeball. A tendon serves to move the bone or structure. A ligament is a fibrous connective tissue which attaches bone to bone, and usually serves to hold structures together and keep them stable.

A tendon is a fibrous connective tissue which attaches muscle to bone.

A ligament is a fibrous connective tissue which attaches bone to bone.

What is tendons and its function?

A tendon is a cord of strong, flexible tissue, similar to a rope. Tendons connect your muscles to your bones. Tendons let us move our limbs. They also help prevent muscle injury by absorbing some of the impact your muscles take when you run, jump or do other movements.

What is ligament and its function?

Ligaments often connect two bones together, particularly in the joints: Like strong, firmly attached straps or ropes, they stabilize the joint or hold the ends of two bones together. This ensures that the bones in the joint don't twist too much or move too far apart and become dislocated.

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Define :-Aquifer
Answer this correctly I'll mark you brainliest​

Answers

Answer:

An aquifer is a body of porous rock or sediment saturated with groundwater. Groundwater enters an aquifer as precipitation seeps through the soil. It can move through the aquifer and resurface through springs and wells.

A body of permeable rock which can contain or transmit groundwater.

describe an experiments to show that ochaled air
Cartain carbon dioxide​

Answers

Answer:

Let's find out if exhaled air contains carbon dioxide.

Take a glass and fill it up with some limewater. ... The limewater turns milky. This goes to show that the carbon dioxide present in the exhaled air turns the limewater chalky. The limewater turns from clear and colourless to chalky.

Explanation:

María and Sean both have brown eyes (a dominant trait), yet their first child has blue eyes (a recessive trait). Using "B" for brown and "r" for blue, fill out the punnett square below to show how that could happen. ​

Answers

Answer:

i put a ss of a punnett square i made:) i hope this helped !!

Explanation:

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