Which term best describes a group of cells that are similar in composition and function together to perform a task?

Answer:

The cell membrane's main trait is its selective permeability, which means that it allows some substances to cross it easily, but not others. Small molecules that are nonpolar (have no charge) can cross the membrane easily through diffusion, but ions (charged molecules) and larger molecules typically cannot.

The theory of primitive life on Earth is fascinating, there are countless scientists who try to explain how life began on Earth, but to be able to answer how the first living beings were we need to know that.....

The most widely accepted hypothesis about the origin of life today is the Oparin and Haldane hypothesis. According to this idea, the primitive Earth would be constituted by

which are constantly expelled by volcanic activities. The condensation of this water vapor gave rise to a cycle of rains, as these, upon reaching the still hot surface of the Earth, evaporate again, thus initiating a new cycle.

Through the action of the sun's ultraviolet radiation and constant electrical discharges, the elements present in the atmosphere began to react, giving rise to the first organic compounds, called amino acids. The rains carried these compounds to the primitive oceans, which formed when the Earth's surface cooled, allowing water to accumulate on the surface.

In primitive oceans, these amino acids joined together, forming protein-like compounds (proteinoids), and then, after further reactions, these gave rise to coacervates. These became more stable and complex, controlling their own chemical reactions and being able to self-duplicate, thus giving rise to the first living beings.

Some authors believe that the first organisms would be heterotrophs. This was due to the fact that the first organisms were simple, lacking the structure to carry out a more complex biochemical process to obtain food, for example, photosynthesis. Thus, these organisms fed on simple organic matter, presenting as the end product of this process carbon dioxide (CO2) and alcohol (C2H5OH), that is, the first living organisms would be fermentors.

With this information, we can say that the first living being on the planet was anaerobic, heterotrophic bacteria.

There have always been many theories about the origin of life on the planet, but this is the most acceptable among scientists, but it is necessary to know that they are not yet fully proven, so they continue as a theory.

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what

Explanation:

what you talking about

Answer:

1.) Cultural Anthropology

2.) Biological Anthropology

3.) The research  could be used to compare quinoa consumption in other parts of the world.

Explanation:

Anthropology is a scientific field that studies humans. It studies humans all over the world with respect to their behaviors and cultures in both past and present eras. Anthropology is divided into four major types: Cultural, Biological, Linguistic and archaeological.

1.) Because this research is towards the role of soybean and related products in Hing Kong, we can confidently say that it falls under the cultural aspect of anthropology which focuses on the study of differences in cultures among humans.

2.) Considering the fact that the research deals with a biological product (soybean) that has effects on humans, then biological anthropology is the most closely related field.

3.) The researchers intend to relate their findings from this research to global soybean and other related products consumption pattern. Therefore, this research could be used to compare quinoa consumption in other parts of the world.

Answer:

e 2020

Explanation:

Historical significase

Answer:

x is spherical.... y is e.colii

Unlike the lysogenic cycle, the lytic cycle involves destruction of the host.

Answer:

to adapt to dryland conditions

Explanation:

The main groups of land plants are vascular plants and they have developed diverse adaptations to survive on land, especially in climatic zones where drought and high temperatures are common. Some of the most important plant adaptations to land ecosystems include, among others, the development of a cuticle to prevent water loss, stomata capable of regulating water evaporation, desiccation-resistant spores coated in sporopollenium polymer, etc. Moreover, in seed plants, which are considered to be the most evolved vascular plants, the endosperm tissue produced inside the seeds is nourished by the parent sporophyte during the first stages of plant development.

Desiccation resistant spores, protective and complex

reproductive organs, and embryos nourished by parental

tissues enable land plants to adapt to dry conditions.

This is the process in which a substance dries up as a result of

loss of moisture.

In plants, resistant spores, protective and complex

reproductive organs, and embryos nourished by parental

tissues  which helps to prevent desiccation and ensure that the

seeds survive harsh conditions thereby facilitating

reproduction.

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Answer: C

Explanation:

got a 90 on the quiz but correct if wrong

Answer:

The universe

Explanation:

Answer:

Explanation:

Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.

Answer:

Isotopes are atoms with different atomic masses which have the same atomic number. The atoms of different isotopes are atoms of the same chemical element; they differ in the number of neutrons in the nucleus.

Explanation:

Answer:

heat, gas(condensation), Adhesion

Answer: The answer is D because the way they line up!!

Explanation:

The model that gives a true representation of a DNA molecule would be the 4th model.

According to Watson and Crick, the DNA is a double strand molecule with each strand twisting around one another to form a ladder-like, double helix structure.

Also, there is a complementarity of nucleotide bases such that Adenine (A) always pairs with Thymine (T) while Guanine (G) always pairs with Cytosine (C).

Thus, model 4 ticks all the characteristics of a typical DNA molecule.

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DNA contains the instructions for an needed for an organism to develop, survive, and reproduce.

Answer:

The Southern Ocean, also known as the Antarctic Ocean or the Austral Ocean, comprises the southernmost waters of the World Ocean, generally taken to be south of 60° S latitude and encircling Antarctica. As such, it is regarded as the second-smallest of the five principal oceanic divisions: smaller than the Pacific, Atlantic, and Indian oceans but larger than the Arctic Ocean. Over the past 30 years, the Southern Ocean has been subject to rapid climate change, which has led to changes in the marine ecosystem.

More to the Question:

The (blank) water is a saline, cold, and dense body of water lying deep in the Southern Ocean, traveling northward.

Antarctic Bottom

Explanation:

I don't know if this will help, Hope it does.

Sorry :( if it does not

Answer:

1

djdhdbbdbdbsbdbdbsb

Answer:

Lactic Acid Fermentation

Explanation:

Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars are converted into cellular energy and the metabolite lactate, which is lactic acid in solution. Lactate, which is just the deprotonated form of lactic acid, gives the process its name. The bacteria that make yogurt carry out lactic acid fermentation, as do the red blood cells in your body, which don't have mitochondria and thus can't perform cellular respiration.

hope this helps have a nice day

Answer:

Asextual

Explanation:Because it divides

Answer:

Explanation:

S phase

The S phase of a cell cycle occurs during interphase, before mitosis or meiosis, and is responsible for the synthesis or replication of DNA.

Answer:

S phase, S phase is the period during which DNA replication occurs.

Answer: the matrix

Explanation:

Answer:

false

Explanation:

hope dis helps

Answer:

true, people have been eating roots for years

Hope this helps!!!

plz mark brainliest

Explanation:

Answer:

The correct answer is - natural selection in moths.

Explanation:

This is an event of historical Industrial melanism, an event caused by the process of natural selection. Due to this event, the evolution of dark body colors in moth species that present in such habitats become black by industrial soot.

Peppered moths in the UK were pale grey before the revolution of industries, But after the habitat become polluted with soot from coal‐fired industries, melanic snd become numerous and spread to other regions.

After the century the pollution comes down and the pale phenotype becomes the predominant form.

Answer:

Climate change not only affects ecosystems and species directly, it also interacts with other human stressors such as development. Although some stressors cause only minor impacts when acting alone, their cumulative impact may lead to dramatic ecological changes.

Explanation:

Answer:

sea hares, cuttlefish, squid and octopuses

Explanation:

They give themselves a last chance to escape by distracting their attackers,; to do this, they eject a mixture of chemicals, otherwise confuse predators.

Hope that helps

Answer:

D

Explanation:

because wind is depositing sand to build

Wind depositing sand to build up sand dunes best illustrates a natural process acting as a constructive force. Therefore, the correct option is D.

Constructive forces are the forces that are responsible for the formation of new landforms on the surface of the earth, such as deposition, earthquake, volcanoes etc.

Wind depositing sand to build up sand dunes is the natural process depicting the constructive force  because sand dunes are formed by constructive forces that add sediment to an area, in this case, wind depositing sand.

Option A is incorrect because river erosion is a destructive force that wears away soil and rock, rather than building it up. Option B and option C are also destructive forces. Therefore, the correct option is D.

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Answer:

Grasslands and herbivores have a mutually beneficial symbiotic relationship. If larger herbivores such as Kangaroos and Elephants are removed from them, they may become extant.

Explanation:

Herbivores are always hungry and they are always looking for ways to replenish lost energy. Between tree shoots and grass, they often go for the former because they are tender, easier to reach, and less difficult to masticate than the young tree shrubs.

When baby trees become bigger, their shade prevents adequate sunlight from reaching the grass, then gradually they become scanty or subdued for as long as the shade remains.

When large herbivores are removed or leave a grassland, trees have the ability to flourish. Then the results indicated above happens.

Cheers!

Answer:

Motor neuron

Explanation:

Motor Neurons (effector neurons) relay information from the CNS to other organs terminating at the effectors. It takes the information from the brain to the effector.

Hope it helped!!!

Answer:

In most sexually reproducing organisms, each individual has two alleles for each gene (one from each parent). This pair of alleles is called a genotype and determines the organism's appearance, or phenotype.

Answer:

match Thymine with Adenine, then Guanine with Cytosine

Explanation:

A - T

G - C

Answer:

muscles?

Explanation:

what trend? can explain or this not serious Question?

Answer:    The answer is B.  prophase, metaphase, anaphase, telophase

Explanation: