A group of students studied four different cell specimens under a microscope and recorded information about each cell
in this table.
Characteristics of Four Cell Specimens
Cell Membrane
Chloroplasts
Yes
Yes
Cell Specimen Cell Wall
Cell 1
Yes
Cell 2
No
Cell 3
Yes
Cell 4
No
DNA in Nucleus
Yes
Yes
Yes
No
Yes
No
No
Yes
-
Yes
Which cell specimen is a prokaryote?
A Cell 1
B Cell 2
C Cell 3

Answer:

It's oxygen

Explanation:

The oxidation of glucose takes place which simply means burning in oxygen. So...

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Answer:

Metaphase ⇒ Chromosomes line up in the middle of the cell

Prophase ⇒ DNA condenses to form chromosomes

Anaphase ⇒ Each chromosome separates and moves to opposite ends of the cell

Telophase ⇒ Nuclear membranes form around each set of chromosomes

Answer:

The soil in the alpine biome is rocky and nutrient poor.  Plants that live in the alpine biome must be suited to the nutrient poor soil.

Explanation:

The plants living in the alpine biome are adapted to survive on limited nutrients as the conditions in the alpine biome is harsh and not favorable. Hence, the plants have to adapt the mountain climate.

An adaptation is any physical or behavioral feature of an organism that helps them to survive better in their environment. In other words, an adaptation is something that helps them in finding food, water, mates, and shelter.

The alpine climate is the typical climate for elevations above the tree line, where the trees fail to grow due to cold conditions. The climate of alpine biomes is also referred to as the mountain climate or highland climate.

Plants which are living in alpine biomes are typically low growing due to the extreme environmental conditions. There are only about 200 species of alpine biome plants which have adapted to life in cold temperatures and sparse rainfall.

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Answer/Explanation:

Monera is an outdated/old-fashioned classification that describes a kingdom of prokaryotic organisms. Nowadays, we split prokaryotic organisms into two kingdoms: bacteria and archaea.

Monera describes organisms that do not contain a true nucleus, including all species of bacteria, archaebacteria, and some cyanobacteria. It does not contain eukaryotic single celled organisms like fungi or protists.

Answer:

Monera is a kingdom that contains unicellular organisms with a prokaryotic cell organization, such as bacteria. They are single-celled organisms with no true nuclear membrane. The taxon Monera was first proposed as a phylum by Ernst Haeckel in 1866

Explanation:

hope it helps

Answer:

Explanation:

The allele are fixed because there is no variation that exist in the population and the allele are almost completely the same hence no new combination of gene the same Allele will continue to reoccur

Variability exist because of random mating that occurs in the population initially when the toad filled up the entire central valley

Random mating ensures fitness in the initial population

Genetic drift acted upon the population drifting away allele that are very few in population or that occur less in the population and perpetuating alleles that frequently occur leading to a fixed allele.

There was a decrease in the population as a result of the change in the environment.

Answer:

D. the nervous system

Explanation:

This system of your body controls your reflexes! :D

Answer:

Nervous system

Explanation:

The nerve receptors responsible for transmission of impulses to the brain are a part of nervous system.

Answer:

Answer:

B; Not work

Explanation:

Water constantly moves around the Earth and changes between solid, liquid,  and gas. This all depends on the Sun's energy. Without the Sun there would be no water cycle, which means no clouds, no rain, no weather.

Answer:

A b c f and g are true

Explanation:

A is true because when we have different individuals we can observe dna polymorphism.

B is true because the size of the amplicon is determined by the treat count of D3T40 locus

C. Is true because polymorphic sequence are actually flanked by primers

D is false

E is false

G is true

F is false

The statements below that are correct include:

A. The number of repeats at the D3T40 locus will vary among individuals.

B. The size of an individual's amplicons is determined by the number of repeats at the D3T40 locus.

C. The primers will anneal to the sequences that flank the D3T40 locus.

PCR.

F. You can determine the size of an individuals D3T40 amplicons using gel electrophoresis.

G. The size of the amplicons produced will vary among individuals.

It should be noted that DNA polymorphism can be observed among different individuals. Therefore, the number of repeats at the D3T40 locus will vary among individuals.

Also, the amplicon size depends on the number of repeats. Hence, the size of an individual's amplicons is determined by the number of repeats at the D3T40 locus.

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Answer:

Orion arm

Explanation:

Answer:

The correct answer is - glucose, respiration and oxygen in order.

Explanation:

The food we eat contains various nutrients mainly, carbohydrates, protein, and fat. The carbohydrate that is we eat has glucose as the primary product and also the substrate in the process known as cellular respiration.

Cellular respiration is a process in which glucose molecules are broken down in order to provide energy in the form of ATP with the help of oxygen. It is called aerobic respiration as it required oxygen for the complete oxidation of the substrate.

Answer:

Glucose respiration oxygen

Explanation:

Answer:

your answer would be These external agents of genetic change are called mutagens. Exposure to mutagens often causes alterations in the molecular structure of nucleotides, ultimately causing substitutions, insertions, and deletions in the DNA sequence.

i don't know if this is correct or not let me know please.

Explanation:

Answer:

i choose O2

Explanation:

a bird eating an entire earthworm a plant growing in a garden (confused)

an earthworm and a plant are both products of nature and that is normal between nature's survival for the fittest so a plant eating an earth worm is way of showing nature's leftovers of the earth worm and plant

Answer:

[tex] \boxed{ \text{below \: in \: bold}}[/tex]

Explanation:

[tex] \huge{ \underline{{ \text{Ecosystem}}}}[/tex]

No living beings can survive alone. There always exists a close relationship between living and non - living things. The environment of the earth consists of physical and biological factors. The physical and biological factors together constitute an ecosystem. The ecosystem may be natural or artificial , temporary or permanent. Thus, an ecosystem is an ecological unit which consists of both biotic ( living ) and abiotic ( non - living ) factors of the environment. The organisms and the environment are inseparably interrelated and interactive in their nature. A.G. Tansley ( 1935 ) , a British ecologist used the term ecosystem first.

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Answer:

a. deoxyribose

Explanation:

Answer:

DNA into RNA

Explanation:

The missing part of the question and group of options is attached as an image.

Answer:

The correct answer is - D - The number of solvent particles outside the cell decreased.

Explanation:

As the solution reached equilibrium the concentration of the solute is equal inside the cell and outside the cell, so the number of particles of the solvent must increase inside and decrease outside of the cell.

The cell volume increased due to the flow of the solvent from outside to the inside of the cell this type of diffusion of solvent is known as osmosis which leads to the swollen or bigger cell.

Answer:

The number of solvent particles outside the cell decreased.

Explanation:

Answer:

Sodium

Explanation:

because ions have a charge which prevents them from moving across the cell membrane through simple diffusion

Answer:

Explanation:

Mitochondria regulate caspase activation and cell death through an event termed mitochondrial outer membrane permeabilization (MOMP); this leads to the release of various mitochondrial intermembrane space proteins that activate caspases, resulting in apoptosis.

It is element At, or Astatine. Number 85 on the periodic table

Answer:

Nucleotides

Explanation:

The nucleotides forming each DNA strand are connected by noncovalent bonds called hydrogen bonds.

Nucleotide is the unit that repeatedly joined together to form a strand of DNA.

Deoxyribose + phosphate group + thymine could be a nucleotide of DNA and defined as deoxyribonuclic acid and it is a polymer made up of two polynucleotide chains that arranged in foiled structure to form a double helix carrying genetic information for the various processes such as growth development  functioning and reproduction.

There are four nitrogen bases of DNA nucleotides are such as adinine, thymine, guanine and cytosine.

Friedrich miescher discovered DNA in the year of 1860.The shape of DNA is double helical structure

The main function of DNA is to carry information from one generation to another generation this is the reason due to which DNA is also known information molecule.

In our body DNA is found in the nucleus of the cell and it is known as nuclear DNA. The shape of DNA is double helical structure.

Siblings share only about 50% of same DNA due to the reason of recombination. The life span of DNA is 521 years.

Therefore, Nucleotide is the unit that repeatedly joined together to form a strand of DNA.

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Answer:

from my point of view the answer should be self can't be created or destroyed

Answer:

It can be things like bleach, soap, or vinegar.

Explanation:

Answer:

Antiseptic

Explanation:

Chemical such as soap, vinegar, or rubbing alcohol that destroys pathogens outside of the body.

Answer:

i know only 3 properties

Explanation:

colourless

odourless

tasteless

Answer:

the report gives particular attention to conditions in low- and ... However, appropriate care for people with NCDs is lacking in many settings, ... By 2020, this number will increase to 7.5 million, accounting for 10% of all ... people ≥ 30 years old with a 10-year risk of fatal or nonfatal cardiovascular events.

Explanation: hope it helps

Answer: Well, it is not determine how much exactly would 48.2 million years ago, but I believe this will be by the beginning of Eocene Period.

Hope this helps;)

Answer:

By releasing CO2 it would warm the planet and help plants grow. But realising too much would be one cause of global warming. Also, more CO2 in the atmosphere would cause the ocean water to become more acidic, putting marine life in danger.

Explanation:

Answer:

Agriculture and domestication probably started in the Fertile Crescent (the Nile Valley, The Levant and Mesopotamia). ... People probably started agriculture slowly by planting a few crops, but still gathered many foods from the wild. People may have started farming because the weather and soil began to change.

Explanation: