In humans, red blood cells are the only cells that eject their nuclei as they develop. By emptying themselves of nuclei, these cells are able to do
which of the following?
replace themselves quickly when more cells are needed
transport greater amounts of oxygen and waste throughout the body
transmit electrical impulses quickly
attack bacterial pathogens more effectively

Answer:

Explanation:

An antimicrobial agent is a natural or synthetic chemical that kills or inhibits the growth of microorganisms. Bacteria have a mechanism of transferring genomic material called horizontal gene transfer, the movement of genes between cells that are not direct descendants of one another. Horizontal gene transfer allows cells to quickly acquire new characteristics and drives metabolic diversity. One of the characteristics usually acquired is the resistance to antibiotics.

Three mechanisms of genetic exchange are known in prokaryotes:

(1) transformation, in which free DNA released from one cell is taken up by another; (2) transduction, in which DNA transfer is mediated by a virus; and (3) conjugation, in which DNA transfer requires cell-to-cell contact and a conjugative plasmid in the donor cell.

Examples of genes transferred by transducing bacteriophages include multiple antibiotic resistance genes among strains of Salmonella enterica serovar Typhimurium, Shiga-like toxin genes in Escherichia coli, virulence factors in Vibrio cholerae, and genes encoding photosynthetic proteins in cyanobacteria.

Conjugative plasmids use a mechanism to transfer copies of themselves and the genes they encode, such as those for antibiotic resistance, to new host cells.

Answer:

Explanation:

Carnivorous plants are plants that derive some or most of their nutrients (but not energy, which they derive from photosynthesis) from trapping and consuming animals or protozoans, typically insects and other arthropods. Carnivorous plants have adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic bogs. Charles Darwin wrote Insectivorous Plants, the first well-known treatise on carnivorous plants, in 1875. Carnivorous plants can be found on all continents except Antarctica, as well as many Pacific islands.

Answer:

The first two is classified as fracture and the last one as cleavage

Answer:

Cell, in biology, the basic membrane-bound unit that contains the fundamental molecules of life and of which all living things are composed. A single cell is often a complete organism in itself, such as a bacterium or yeast. Other cells acquire specialized functions as they mature. These cells cooperate with other specialized cells and become the building blocks of large multicellular organisms, such as humans and other animals. Although cells are much larger than atoms, they are still very small. The smallest known cells are a group of tiny bacteria called mycoplasmas; some of these single-celled organisms are spheres as small as 0.2 μm in diameter (1μm = about 0.000039 inch), with a total mass of 10−14 gram—equal to that of 8,000,000,000 hydrogen atoms. Cells of humans typically have a mass 400,000 times larger than the mass of a single mycoplasma bacterium, but even human cells are only about 20 μm across. It would require a sheet of about 10,000 human cells to cover the head of a pin, and each human organism is composed of more than 30,000,000,000,000 cells.

Answer: DNA, ribosome, cell membrane.

( DNA ) is the molecule that contains the information for the growth and functioning of the cell.

A  ( ribosome ) is an organelle that creates specific molecules.

The  ( cell membrane )is a layer that surrounds cells, separating their interior from the exterior environment.

Explanation: 1st,2nd,and 3rd Answer.

Answer:

Various day to day use item are made because of direct from a huge amount of different microorganisms. microscopic organisms, molds, or a blend of these. Microorganism which are utilized in food creation such as alcohols, bakery products and esters are formed with fermentation.

1. Drinks like brew and wine ' - Saccharomyces cerevisiae

2. Cheese: Penicillium roqueforti and camemberti  

3. Soy sauce: by utilizing aspergillus species particularly A. oryzae

4 Bread and pastry shop items : Saccharomyces cerevisiae  or Yeast by producing Co2 by the process of fermentation.

5. Fermented milk items : Lactobacillus, Bifidobacterium and lactococcus.

Answer:

D

Explanation:

The breaking down of glycogen-glycogenolysis takes place in the cytosol of cells of the liver and muscles.it is the compensatory process for providing glucose depleted cells with extra glucose. It is the opposite of Glucogengenesis the formation of glycogen in cells.

it involves the activities of enzymes glycogen phosphorylase which catalysis the removal of alpha1-4glycosidic bonds from the glycogen molecules.Thus freeing the glucose molecules from the glycogen while retaining the 1-6 glycosidic bonds.

Its stimulation is by  epinephrine hormone.while  the hormones glucagon from the pancreas control its release into the blood stream,Thus the low levels of glucose in the blood stream caused glucagon to initiate  the breakdown of glycogen in the liver and muscles down to glucose.As the level of this rise in the blood stream Insulin stimulates the entry of the glucose into the cells reducing the levels of blood glucose,inhibiting glucagon levels ,and therefore stopping Glycogenolysis.

Answer:

The primary function of the plasma membrane is to protect the cell from its surroundings

Answer:

The protons and electrons in each element are equal. The sulfur has 16 electrons and 16 protons. But the ionic atom’s electron quantity changes depending on how many it has gained. 'S2-' has gained 2 electrons, which means it has now 18 electrons and 16 protons.

Answer:

The correct answer is "40,000".

Explanation:

According to the Federal Aviation Administration, the phase sequential mask is certified for use up to 40,000 feet, because above this level the pressure will not allow the lungs to take enough oxygen. A specialized system such as pressure demand is necessary in order to fly to higher altitudes. These systems provide oxygen under positive pressure conditions.

Answer:poop

Explanation:

no figure it out yourself

Answer:

The correct answer is option A. "EF-G"

Explanation:

As its name implies, the elongation factor (EF-G) of E. coli is one vital protein that participates during the elongation phase of translocation. EF-G catalyzes the GTP-dependent ribosomal translocation step, which allows the ribosome to change from its pre-translocational to the post-translocational state, moving the process from the P to the E site of the ribosome.

Answer:

See the answer below

Explanation:

Tigers and goldsih share the same phyllum because they both posses the basic characteristics of animals in the phyllum chordata. These characteristics include;

Answer:

Son procesos naturales que reciclan elementos en diferentes formas químicas desde el medio ambiente hacia los organismos, y luego a la inversa. Agua, carbón, oxígeno, nitrógeno, fósforo y otros elementos recorren estos ciclos, conectando los componentes vivos y no vivos de la Tierra

Explanation:

Ecological succession occurs due to the changes in physical environment and population of species. In an ecosystem, a species requires a particular set of environmental conditions under which they grow and reproduce.

Ecological succession occurs due to the changes in physical environment and population of species. In an ecosystem, a species requires a particular set of environmental conditions under which they grow and reproduce.

Ecological succession is the process by which plant communities develop over a period of time on the land where there was no vegetation.

The succession begins with a pioneer species such as lichens, some fungi species. Species such as lichen begins to secrete acids that begin to break the barren land into small particles.

The small particles mix with lichen remains and starts soil formation.

Thus, Ecological succession occurs due to the changes in physical environment and population of species.

To learn more about Ecological succession click here:

https://brainly.com/question/10167897

#SPJ2

Answer: interfering with the normal transmission of nerve impulses to the posterior pituitary

Explanation: A blow to the head may cause diabetes insipidus by interfering with the normal transmission of nerve impulses to the posterior pituitary. Interfering with the normal transmission of ADH (antidiuretic hormone) to the posterior pituitary is done via the axons of the hypothalamic neurons. The disease is a rare one, characterized by the excretion of large amounts of severely diluted urine which cannot be reduced when fluid intake is reduced. It is generally related to a tumor or an insult to the pituitary gland, where the hormonal signals it gives to the kidneys break down, and the kidneys do not conserve water, but express the water as urine.

Answer:

Descretionary calories are the calories left over after an individual meets his/her day by day supplement requirements.The result of Descretionary calories is high muscle fat ratio and weight gain or obesity.

Health risk :

Here and there high optional calorie intake may lead to weight on a people body optional calorie are high in fats, sugars and phenomenal admission of these kinds of food expands your danger factors for type 2 diabetes,heart ailment and disease.

Alternative sweetener and fat choices:

Fruits and vegetable with dressing as they are natural and high in sugar content and use fructose which absorbs in small intestine. The natural sweetener that can be alternatively use are stevia, aspartum, agave syrup, saccharin and sucralose and other natural alternatives.

Avoid oils high in saturated fat and include PUFA and omega rich unsaturated fat which is god for health.

These alternative food choices are known for providing less fat and no to less calories that help direct and indirectly in weight loss and lowers the risk of diseases.

Answer: Nucleic Acid

Explanation:

Made out of nucleotides

Answer:

limiting factor

Explanation:

In an ecosystem, certain factors hinder the growth or abundance of the population of organisms. These factors are called LIMITING FACTORS. Limiting factors, which can be biotic, food, drought, predation, disease etc, are factors that inhibits a population of organism from becoming enlarged. There are two types of limiting factors viz: density dependent (depends on size) and density independent (not dependent on size).

This is the case of a drought that dries up the stream that inhabits a population of salamanders. The drought causes the unavailability of water, which will ultimately have an effect on the growth of the salamander population. Hence, the DROUGHT is considered a LIMITING FACTOR.

Answer:

You need to make a graph of this data that is given to you.

Explanation:

Answer:

The main functions of mitosis are growth and repair. Some cells once fully formed do not undergo cell division, such as nerve cells and muscle cells. Since you can never re-grow or repair these types of cells once they are mature, you must take care of the ones you have.

Explanation:

Mitotic cell division is a process of mitoses where a parent cell divides to create two identical daughter cells.

There are five phases of mitoses which include:

The functions of mitotic cell division include:

Read more here:

https://brainly.com/question/18976475

Answer:

The three types of symbiotic relationships are mutualism, parasitism, and commensalism. In mutualism, both organisms gain something, in parasitism, one organism gains and the other loses, and in commensalism, one gains and the other doesn't gain or lose

Answer:

living in close association.

Explanation:

the thing you compare your experimental results to is called the control group.

Control group is the standard to which comparisons are made in an experiment. Many experiments are designed to include a control group and one or more experimental groups.

Moreover, some experiments use multiple control groups to gather more information and improve the accuracy of results. For example, many medical studies include positive, negative and placebo.

The control group and experimental group are compared against each other in an experiment. The only difference between the two groups is that the independent variable is changed in the experimental group.

Learn more about control group:

https://brainly.com/question/18849823

#SPJ2

Answer:

D, Physical

Explanation:

Linnaean classification uses visible physical features. It has a kingdom-to-species taxonomy. Each species has a distinct two-word Latin name. Therefore, option (D) is correct.

The Linnaean system classifies organisms according to their outward morphological and behavioural similarities. A hierarchy of taxonomic levels, from the kingdom down to the species, makes up this structure. A distinct, two-word Latin name is bestowed for each and every species.

Carl Linnaeus, the "Father of Taxonomy," named and organised species. His hierarchical categorization scheme and binomial nomenclature system were major advances to taxonomy (two part naming method). The Linnaean system organises organisms into Kingdom, Phylum, Class, Order, Family, Genus, and Species. Latin names are global. A species' scientific name includes its genus. Italics or underlining cover the name. Humans, for instance. It's Homo sapiens.

Learn more about Linnaean system of classification, here:

https://brainly.com/question/24233730

#SPJ3

Answer:

Domains are distinct functional and structural units in a protein. Usually they are responsible for a particular function or interaction, contributing to the overall role of a protein. Domains may exist in a variety of biological contexts where similar domains can be found in proteins with different functions.

The amount of dog food given to puppies is decreased by a vet to see if they will lose weight and A scientist changes the amount of sunlight a plant receives in an experiment to see how they grow in different levels of light are independent variables.

Thus option B and C are correct.

In an experiment, the most important parameter is variable which can change such as amount of light, temperature, humidity etc.

Two major types of variables, independent variable which changes either on its own, or we purposely change it.

Change in Amount of light, environmental temperature,  and humidity show effect on plant growth.

Dependent variable is depend on other variable such as independent variable.

Third one is controlled variable which must be taken as a parameter in an experiment in order to avoid the bias of the result.  

Thus option B and C are correct.

Learn more about  independent variable, here:

https://brainly.com/question/17344045

#SPJ2