What are these answers?

A catalyst is a chemical substance that speeds up chemical reactions by lowering the activation energy.

The activation energy of a reaction is the amount of energy required to carry out a chemical reaction.

Proteins are biological catalysts that speed up chemical reactions by lowering their activation energy.

In conclusion, a catalyst is a chemical substance that speeds up chemical reactions by lowering the activation energy.

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The functions of the integument include resident macrophage-like cells that ingest foreign invaders and present them to the immune system.

The integumentary system is a physical barrier that separates the body from the external environment.

This barrier (integumentary system) is fundamental for the immune system due to the presence of macrophage-like cells.

In conclusion, the functions of the integument include resident macrophage-like cells that ingest foreign invaders and present them to the immune system.

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Answer:

Explanation:

Answer:

The leaves of a plant absorb light

Nocardia is important in bioremediation process because they can decompose polycyclic aromatic hydrocarbons, polychlorinated biphenyls, chlorophenols, sulfonated azo dyes and alkanes.

Bioremediation is the process of using living organisms such as microorganisms to degrade wastes in the environment in order to return it to its previous healthy state.

An example of a microorganism used in bioremediation is Nocardia spp.

Nocardia is important in bioremediation because they can decompose polycyclic aromatic hydrocarbons, polychlorinated biphenyls, chlorophenols, sulfonated azo dyes and alkanes.

Based on the complete question which is given as follows:

"Nocardia are of particular interest to scientists for the process of bioremediation because they can degrade _________. (Check all that apply) A. petroleum Hydrocarbons B. rence benzone C. pectin Keratin D. Decode Chiron", the correct options are A and B.

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Answer:

Constitutive is natural skin color and facultative is the darkening due to UV or other factors.

Explanation:

Constitutive skin color is the natural color of the skin, and that color has nothing to do with any controllable/external factor and is determined in your genes, while Facultative is the result of ultraviolet light or other environmental factors which causes a change in melanin in the skin therefor making it darker  

Answer:

this question is asking what an adaptation is or what an adaptive trait is.

Explanation:it has been hypothesized that sympatric speciation of pine beetles may occur through the isolation of populations as a result of increasing dietary ...

Answer:

Phospholipid Bilayer

Explanation:

i helped my friend with her test and that was the answer

Answer:

The leaf shows the greatest increase

Answer:

D

Explanation:

Each sentence describes a different form of energy:

An electromagnetic spectrum is a set of frequencies and wavelengths over which an electromagnetic wave can be spread (extends).

From smallest to longest wavelength (highest to lowest frequency), the electromagnetic spectrum consists of the following types of energy:

Type of energy:

Each phrase in science describes a different form of energy:

1. Violet light has the shortest wavelength of visible light.

Visible light has a wavelength of 380 to 450 nanometers.

2. Infrared radiations are energy that can be felt as heat but cannot be seen.

Infrared radiation is a form of energy that the human body perceives as heat but that cannot be seen since it is outside the visible light range.

3. Ultraviolet radiations are short, invisible rays that might cause eye injury.

Ultraviolet light, which is mostly produced by the Sun, has the potential to harm the eyes.

4. Red light is the visible light with the longest wavelength.

Red light has a wavelength of 620 to 750 nanometers.

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Answer:

1.D

2.B

3.C

4.A

Explanation:

Answer:

A sequence of three nitrogenous bases in a messenger-rna molecule is known as Codon

Explanation:

Codon is a triplet of three nitrogenous bases present in mRNA. It can be any three from uracil, adenine, guanine or cytosine. They are arranged in specific order and code for specific amino acids.

Answer:

Explanation:

Different circumstances cause different outcomes, animals adapt to certain conditions and their surroundings.

Letter C isn't incorrect but that is not what the question is asking C.Organisms can learn new adaptations.

but other than those two the rest are incorrect.

Answer:

It has a solid surface that is covered with craters like our Moon.

Explanation:

I hope it helps u dear (^^)

The percentage that the offspring will be deaf is 75%. Two punnet squares are needed each for km and Kkmm individuals. In punnet square 1, half of the genotypes are Km and km while half are Mm and kk in punnet square 2. The two punnet squares are then combined to form a final one where a quarter of the offspring is deaf.

In a wide sense, the word"genotype" refers to the genetic makeup of an organism;  it defines an organism's complete set of genes. In a more thin sense, the term can be used to guide the alleles, or variant forms of a gene, that are carried by an organism.

Thus, this could be the answer.

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Answer:

B. cellular respiration

Explanation:

The genotypes and phenotypes their offsprings can have include only free lobes and attached hair.

This is defined as the genetic constituent of an organism while phenotype represents the physical characteristics.

Dd and Ee when crossed will give DE, De, dE and de which means that the genotype will be 1 homozygous dominant,2 heterozygous and 1 homozygous recessive for free lobes and attached hair.

The probability = number of favorable outcome/ total number of outcome.

The total number of outcome = 4

The probability for 1 homozygous dominant,2 heterozygous and 1 homozygous recessive is therefore 1/4 , 1/2 and 1/4 respectively.

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Answer:

While exercising, the muscles need additional energy as the breathing rate and volume of each breath increase to bring more oxygen into the body and remove the carbon dioxide produced. If insufficient oxygen is available to the muscles, for instance, the exercise is vigorous and/or prolonged, the heart and lungs are unable to supply sufficient oxygen. Muscles begin to respire anaerobically. Lactic acid is produced from glucose, instead of carbon dioxide and water. Muscles continue to contract, but less efficiently. When a period of exercise is over, lactic acid must be removed, because the body's tolerance to lactic acid is limited. These processes require oxygen. This is why, when the period of activity is over, a person’s breathing rate and heart rate do not return to normal straight away.

Explanation:

Aquatic nitrate pollution can result in algal bloom that when the algae die and are decomposed by bacteria, leads to hypoxia and the death of fish.

Algal bloom is a dense spread of algae on the surface of water.

Algal bloom is caused by a process of eutrophication, which is the release of artificial or natural nutrients, mainly phosphates, through detergents, fertilizers, or sewage, to an aquatic system.

Therefore, it can be said that aquatic nitrate pollution can result in algal bloom that when the algae die and are decomposed by bacteria, leads to hypoxia and the death of fish.

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The molar enthalpy of vaporization of the substance is 84.3 kj/mol.

Molar enthalpy of vaporization is the energy required to vaporize one mole of a liquid at its boiling point.

0.433 moles of the substance absorbs 36.5 kj of energy when it is vaporized.

1 mole of the substance will absorb 36.5 kJ × 1 /0.433mol = 84.3 kj/mol

Therefore, the molar enthalpy of vaporization of the substance is 84.3 kj/mol.

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Answer:

Black rhinos have a number of adaptations that help them survive in their environment, including an upper lip that is prehensile, which means the rhino can use it almost like a hand and which sets them apart from white rhinos. They also have thick skin and can rotate their ears.

Explanation:

correct me if I'm wrong because i work hard for this question

Answer:

digestive enzymes, hydrochloric acid

Explanation:

Gastric juice is made up of digestive enzymes, hydrochloric acid and other substances that are important for absorbing nutrients – about 3 to 4 liters of gastric juice are produced per day. The hydrochloric acid in the gastric juice breaks down the food and the digestive enzymes split up the proteins

Connecting with the consumer in a meaningful way with the unique benefits being included will unlock star potential of the pain reliever.

These consists of means of passing information about an individual or a substance.

Tropical pain reliever should have the unique benefits passed to ensure increase in sales and profit.

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The stomata components also include a) subsidiary cells, which are specialized cells surrounding the ,b) guard cells that assist in the opening and closing of the stomatal pore.

1. Based on structure:

• Anomocytic stomata: with no surrounding specialized cells

• Paracytic stomata: with one or more subsidiary cells parallel to the guard cells

• Diacytic stomata: with two subsidiary cells at right angles to the guard cells

• Cyclocytic stomata: with one or more subsidiary cells encircling the guard cells

2. Based on location:

• Hypostomatic stomata: present only on the lower epidermis

• Epistomatic stomata: present only on the upper epidermis

• Amphistomatic stomata: present on both the upper and lower epidermis.

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In a metapopulation, source populations are species that are likely to have more individuals immigrating to habitat patches than other species. This means that source populations can inhabit the largest suitable ecological patch.

A population may be defined as the members of the same species living in a particular area at a given time.

A metapopulation is a collection of the regional populations within some more extensive area, where migration from one population to another is possible.

Therefore, it leads to inhabiting the largest suitable ecological patch.

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During endochondral bone formation, the epiphyses remain cartilaginous until the stage of adulthood.

Endochondral generation is a cellular phenomenon where hyaline cartilage can be replaced with bones.

This phenomenon (endochondral formation) is due to the differentiation of specialized mesenchymal cells to chondrocytes.

Endochondral formation of bones includes:

In conclusion, during endochondral bone formation, the epiphyses remain cartilaginous until the stage of adulthood.

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Answer:

Interspecific competition

Explanation:

This is competition between different species

Intraspecific competition is between the same species

1. Nucleotides: A phosphate group, a 5-carbon sugar, and a nitrogenous base are the three components of a nucleotide. Adenine, cytosine, guanine, and thymine are the four nitrogenous bases in DNA. Instead of thymine, uracil is found in RNA. The genetic material of all known living creatures is made up of nucleotides in a chain.

2. Genes:  A gene is a small segment of a lengthy DNA double helix molecule that consists of a linear base pair sequence. A gene is any portion of DNA that contains instructions that allow a cell to generate a specific product – usually a protein, such as an enzyme – that performs a single specified action.

3. A locus (plural loci) is a stable location on a chromosome where a certain gene or genetic marker can be found.

4.  At a genomic region, an allele is one of two or more variations of DNA sequence (a single base or a segment of nucleotides).

5.  Chromosomes are thread-like structures found within the nucleus of both animal and plant cells. Protein and a single molecule of deoxyribonucleic acid make up each chromosome (DNA). DNA is passed along from parents to children and carries the precise instructions that distinguish each living thing.

6.  Karyotype: A karyotype is a individual's entire set of chromosomes. A laboratory-produced representation of a person's chromosomes extracted from an individual cell and arranged in numerical order is also known as a chromosomal map. A karyotype can be used to check for chromosomal number or structural problems.

8. Genotype: An organism's genotype is its genetic makeup. From embryonic development to adulthood, the genotype determines an individual's inherited potentials and limitations. In se×ually reproducing organisms, a person's genotype is made up of the whole set of genes acquired from both parents.

9. Phenotype: Physical traits are described by phenotypes. It encompasses both apparent (such as hair or eye color) and measured characteristics (like height or weight). Characteristics relevant to your development and behavior, such as personality traits, are also referred to as phenotypes.

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Which of these equation is the correct one for fermentation?

❍ Glucose + oxygen → carbon dioxide + water

❍ Glucose → lactic acid

❍ Glucose → ethanol + carbon dioxide

To understand this first we should know what is fermentation.

What is fermentation?

A process of chemical change in food or drink because of the action of yeast which may cause it to produce bubbles or heat, or turn sugars in it into alcohol.

Equation -:

[tex] \small\sf{C_{6}H_{12}O_{6} \rightarrow2C_{2}H_{5}OH + 2CO_{2}} [/tex]

Which means

Glucose → ethanol + carbon dioxide