Which was the first cell viewed by the light microscope

Answers

Answer 1

Answer: The first cell that was viewed by the light microscope was the cells in the cork. This happened on 1665 and the person responsible for the view of the very first cell under light microscope was Robert Hooke. He initially believed that cells were particularly unique only to plants.

Answer 2

Answer: Cells were first identified by Robert Hooke in cork, in the year 1665. He said that they looked quite similar to the cellula, contaned in the compartments. But, actually, they were dead cells of the cork. He used a microscope to observe these cells.

Related Questions

Over time, data that support the successfulevolution of a species would include observationsthat describe(1) an increase in the genetic changes occurringin body cells(2) a decrease in the genetic variety carried insex cells(3) an increase in the proportion of offspringthat have favorable characteristics(4) a decrease in the proportion of the populationthat has beneficial traits
Describe how animals adapt to the desert. Be specific.
Lithium, sodium and potassium are all in group one on the modern periodic table.Explain why.
Geography is the study of
What does dna replication mean?

Which of the following best compares the cells produced from mitosis to those produced during meiosis? (1 point) Mitosis produces genetically different haploid cells, while meiosis produces genetically identical diploid cells. Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells. Mitosis produces genetically different diploid cells, while meiosis produces genetically identical haploid cells. Mitosis produces genetically identical haploid cells, while meiosis produces genetically different diploid cells.

Answers

Answer:

Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells.

Explanation:

Mitosis is a method of cell division by which one divides into two identical daughter cells. The chromosome number does not change after division. If mitosis occurs in diploid cell, the resultant daughter cells would be diploid and genetically identical. In meiosis, the cell divides into four daughter cells and chromosome in them is reduced to half. Thus, after meiosis diploid cell divides into haploid cells. These haploid cells are genetically different due to the exchange of chromosome segments between non-sister chromatids of a homologous chromosomes (crossing over).

Answer:

the answer is B

Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells.

As DNA is replicated, which DNA base pair will bond to cytosine ?

Answers

Answer:

Guanine.

Explanation:

DNA is present as genetic material of all the organism.DNA is made of the four different nitrogenous bases, pentose deoxyribose sugar and the phosphate group.

DNA is complimentary in nature in which the nitrogenous bases combine specifically with each other. Adenine binds with cytosine with two hydrogen bonds and guanine binds with cytosine with three hydrogen bonds.

Thus, the answer is guanine.

Adenine bonds with Thyamine Guanine bonds with Cytosine and vice-versa

Research indicates that dreaming may be responsible for inspiring creativity by __________.A. stimulating beta waves, which are responsible for waking brain activity

B. rehearsing the daily activities for which one may need preparation

C. allowing for the emergence of old data in useful, new patterns

D. giving the brain long periods of rest where it is not overworked

Answers

Answer: Option (C) is the correct answer.

Explanation:

Dreams are the desires or goals that an individual wishes for himself and wants to achieve.

Therefore, the old data in our mind which is not fulfilled or achieved generally takes the new shape in our mind and we tend to become creative in order to fulfill that desire or data.

Therefore, we can conclude that research indicates that dreaming may be responsible for inspiring creativity by allowing for the emergence of old data in useful, new patterns.

The correct answer for your question is C.

What is an environment

Answers

Answer:

the surroundings or conditions in which a person, animal, or plant lives or operates.

Explanation:

The natural environment encompasses all living and non-living things occurring naturally, meaning in this case not artificial. The term is most often applied to the Earth or some parts of Earth. This environment encompasses the interaction of all living species, climate, weather and natural resources that affect human survival and economic activity.[1] The concept of the natural environment can be distinguished as components:

Which of these organic molecules functions to help speed up biological chemical reactions?A) lipids
B) proteins
C) nucleic acids
D) carbohydrates

Answers

The best answer is B - Proteins.

Proteins make up enzymes, or to put it another way enzymes are made up of protein. It is enzymes that speed up the chemical reactions. Enzymes are organic catalysts, substances that speed up a (biochemical) reaction but do not take part in the reaction and remain unchanged at the end of the reaction.

In man, there are many enzymes. The majority of these are found in the digestive system where they greatly aid the process of food breakdown from complex molecules to simple molecules. Examples include salivary amylase found in saliva, which begins the gradual breaking down of starch into glucose right from the moment food is placed in the mouth and mixed with saliva. Pepsin in the stomach breaks down protein.

An enzyme acts to speed up chemical reactions, and enzymes are proteins. They act as catalysts to lower the activation energy needed to start certain chemical reactions.

Grass obtains 10% of the energy of the Sun. When a mouse eats the grass, it gets only _____ of the Sun's energy while _____ is lost as heat.

Answers

Grass only obtains 10% of the energy of the Sun. When a mouse eats the grass, it only gets 1% of the energy of the sun, while the remaining 9% is lost as heat. Remember, an average of 10% of the sun’s energy is transferred, in each link of the food chain. So, the answer would be 1% of the sun energy.

Other Questions

Of which domains are the prokaryotes members?

What happens during transcription?a. The transcription process stops. b. RNA polymerase is guided to the correct place. c. mRNA is produced from the DNA. d. DNA is produced from the mRNA.

1. a polysaccharide-based substance that forms the exoskeleton of arthropods.( larva ) 2. an early stage in the development of an animal or plant (hydroskeleton) 3. the period of time offspring is carried in the womb before birth (chitin) 4. gamete-producing organ in animals (gonad) 5. support and movement structure of animals that is maintained by water or body fluid (gestation period) 6. an early growth stage or phase of life of an organism that undergoes metamorphosis (embryo)

People who have albinism appear white because they cannot synthesize the pigment ____________ , so they have an increased susceptibility to ____________ .