In the active site of the enzyme lotzase, a mutation of lysine 132 toaspartic acid causes a loss of lotzase function. Lotzase is most catalytically active at pH 7. Which is the following is the best reason why this might occur?
a. a negative charge is needed for substrate binding.
b. a positive charge is needed for substrate binding.
c. a general acid is needed for catalysis to occur.
d. more than one of the following can be a good reason.

Answer:

76 amino acids can be coded for 288 bases.

Answer:

Explanation:

Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant.

The symbol that will be required to complete the inequality for the domain given, depends on the set of x-values.

The value of x, for which the function f(x) is defined is called the domain of equality.

The following symbols are used to reperesnt the inequality of a domain.

Following can be the complete inequality.

Therefore, the symbol required to complete the inequality fo the given set of domains is dependent of the set of x-values.

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Answer:

1) Suction

2) Root pressure

3) Transpiration

4) Xylem

5) Phloem

Explanation:

Answer:

XYLEM

TRACHEID

SUCTION

ROOT PRESSURE

TRANSPIRATION

Explanation:

Answer:

1:Ctrl+C.cut: Ctrl+x. paste : Ctrl+v

2: Ctrl+S

3: Ctrl+O

4:Ctrl+W

5:shift+ctrl+left

shift+Ctrl+right

shift+ctrl+down

shift+ctrl+up

6: Ctrl +U

7: Ctrl+B

8:Ctrl+i

9:Ctrl+R

10:Ctrl+E

11:Ctrl+R

12:Ctrl +J

Answer:

Igneous rock because it forms when hot molten rock (lava) crystallizes and solidifies .

Explanation:

Have a Nice day!!  :D

Answer:

9 years

Explanation:

Boa constrictor: 30 years

Boa constrictors are native to North, Central, and South America, mainly dwelling in rainforests. The lifespan for the large, heavy-bodied snake averages about 20 years in the wild, but living in captivity can increase that by 10 to 15 years.

Answer: Some types of snake can live for 2-3 decades, such as the boa constrictor, whereas others, such as garter snakes, will be fortunate to reach 10 years of age. On averge a  snack changes its skin up to 2-4 times a year.

Explanation:

Answer:

The most likely correct statement about the two populations that have been geographically isolated from each other for many generations is "Their gene pools are highly dissimilar."

When populations are geographically isolated from each other, they are unable to interbreed, therefore, they evolve independently from each other. Over time, different selection pressures and mutations cause genetic differences to accumulate between the two populations. These genetic differences will become evident when the two populations are brought back together. If the genetic differences are large enough, the two populations may no longer be able to interbreed and produce viable offspring.

Answer:

Passive transport uses the kinetic energy and natural entropy of molecules moving down a gradient. While active transport uses cellular energy to move against a gradient.

Answer:

The second law of thermodynamics

Explanation:

Passive transport is a type of membrane transport that does not require energy to move substances across cell membranes. Instead of using cellular energy, like active transport, passive transport relies on the second law of thermodynamics to drive the movement of substances across cell membranes.

Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.

Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.

Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.

Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.

Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.

Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.

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Answer: true

Explanation: because evaporation causes cooling because the process requires heat energy.

Answer:

Complementary pairing between bases is required for copying nucleic acids. Deoxyribonucleotides are added to the 3′ end of a DNA strand.

Explanation:

Nucleic acids are one of the four biomolecules that occurs in living systems. They are biopolymers formed from nucleotide subunits. Hence, a nucleic acid is a long chain of nucleotides. DNA and RNA are the two nucleic acids in nature. According to the complementary base pairing rule/ Chargaff's rule, the base portions in the nucleotides of a nucleic acid are held together by hydrogen bonds in a complementary fashion i.e. A-T, G-C.

Since DNA polymerase, which synthesizes new DNA strand during DNA replication, moves in the 5'-3' end direction, nucleotides are added to the 3' end (deoxyribose end) of the DNA strand.

Note that, DNA strands are synthesized in an antiparallel manner in which one end of the strand has a 5' and 3'.

Serial dilution is a simple process that involves repeated dilution of a stock solution to obtain solutions of different concentrations. This can be used to prepare a series of dilutions, each of which is one-tenth or one-third of the preceding concentration.

The following is an example of a serial dilution scheme to prepare 1/10, 1/30, and 1/90 dilutions of a disinfectant:Step 1: Obtain 3 sterile tubes labeled A, B, and C. Step 2: Transfer 1 mL of the disinfectant to tube .

A containing 9 mL of sterile water. This is the 1/10 dilution.Step 3: Transfer 3 mL of the 1/10 dilution to tube B containing 7 mL of sterile water. This is the 1/30 dilution. Step 4: Transfer 3 mL of the 1/30 dilution to tube C containing 7 mL of sterile water. This is the 1/90 dilution.

Therefore, 1/10, 1/30, and 1/90 dilutions of a disinfectant can be prepared using this serial dilution scheme.

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Answer:

Okrtyuiop[poiuytfdfghjkl;lkjhgfcvbnm,

Explanation:

Answer:

Tt Tt Tt Tt

Explanation:

All answers inherit one dominant and one recessive trait.

Hope this is correct, I'm a tad rusty.

All viruses must use their genome to produce DNA, which is then used by the host cell to produce mRNA.

The total collection of DNA instructions present in a cell makes up the genome. The human genome is made up of 23 pairs of chromosomes that are found in the cell's nucleus and one tiny chromosome that is found in the mitochondria.

Everything a person needs to grow and operate is encoded in their genome. All living things have DNA as their primary source of information.

The term "genome" refers to an organism's whole DNA. While certain genomes, like those of viruses and bacteria, are exceedingly small, some genomes, like those of some plants, can be nearly incomprehensibly enormous. 

Therefore, All viruses must use their genome to produce DNA, which is then used by the host cell to produce mRNA.

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Answer:

Burning fossil fuels, releasing chemicals into the atmosphere, reducing the amount of forest cover, and the rapid expansion of farming, development, and industrial activities are releasing carbon dioxide into the atmosphere and changing the balance of the climate system.

What are the top 3 human activities that produce CO2?

Eighty-five percent of all human-produced carbon dioxide emissions come from the burning of fossil fuels like coal, natural gas and oil, including gasoline. The remainder results from the clearing of forests and other land use, as well as some industrial processes such as cement manufacturing.

What causes carbon dioxide to increase in the atmosphere?

Human Activity Is the Cause of Increased Greenhouse Gas Concentrations. Over the last century, burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This increase happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.

Hope this helps :)

Pls brainliest...

Answer:

A

Explanation:

Radioactive dating uses carbon isotopes to determine the age of a material.

Radioactive dating is a method of determining the age of a fossil, based on the amount of certain isotopes that remain in a fossil or rock. Thus, the correct option is A.

Radioactive dating may be defined as a methodology for estimating the approximate age of rocks and minerals by the utilization of radioactive isotopes.

This method of radioactive dating is primarily used in igneous and metamorphic rocks, which cannot be dated by the method of stratigraphic correlation that is used for determining the age of sedimentary rocks.

Therefore, the correct option for this question is A.

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Answer:

A. To store the genetic instructions needed to specify traits.

A chromosome is made of a strand of DNA that's encoded with genes.

Osteoblasts and osteocytes, specialized cells found in bone tissue, help support the skeletal fibers in the cell.

Osteoblasts and osteocytes are specialized cells that help support the skeletal fibers in the cell.

In summary, osteoblasts and osteocytes are specialized cells that work together to support and maintain the skeletal fibers in the cell, contributing to the overall structure and function of the skeletal system.

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Answer:

The extinction you are referring to is unclear, as there have been several mass extinctions throughout Earth's history. However, it is generally accepted that climate has played a significant role in many of these events. Prior to some of the mass extinctions, such as the Permian-Triassic extinction and the Cretaceous-Paleogene extinction, the climate was warm and tropical with high levels of carbon dioxide in the atmosphere. This warm climate was likely a contributing factor to the extinction, as it may have led to changes in sea level, ocean circulation, and weather patterns that disrupted ecosystems and caused widespread extinction of species. However, it is important to note that climate is just one of many factors that can contribute to mass extinction events, and there are often multiple causes involved.

This is a problem in the field of ecology.

The problem of quagga mussels in the lake is an ecological issue that requires scientific assessment and management.

It falls under the discipline of ecology, which studies the relationships between organisms and their environment.

Ecologists investigate the impacts of invasive species on the ecosystem and devise strategies to control their spread and minimize their effects.

In this case, scientists will need to examine the size of the quagga mussel population, their distribution, and their ecological interactions with native species.

They will also need to recommend measures to prevent further introduction of quagga mussels and to manage their population growth, such as using chemical treatments or biological controls.

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GMO is a broad term used to describe any organism whose genetic material has been modified through genetic engineering techniques.

Genetic material is a term used to describe the molecules that contain genetic information and are responsible for the transmission of genetic traits from one generation to the next.

Within this definition, there are a wide variety of different types of modified organisms, from plants and animals to bacteria and viruses. As such, it is difficult to define a single position on GMO, as it depends on the specific application and context. Generally, however, it is accepted that the use of GMO can be beneficial in certain cases, such as producing more nutritious foods or developing new medicines and treatments for diseases. At the same time, there are also concerns about the potential risks associated with GMO, such as the spread of genetically modified organisms into the environment and the potential for cross-contamination of food or other organisms. For this reason, it is important to weigh the potential benefits and risks associated with GMO before making any decisions.

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One of the attempts to rescue the Everglades was to capturing water from canals and pumping into the Everglades option D.

Several initiatives are being taken as part of the Everglades rescue effort with the goal of protecting and restoring this distinctive environment.

Maintaining the equilibrium of water levels in the Everglades requires the implementation of water conservation techniques. In order to imitate natural hydrological cycles, this also entails collecting and storing extra water during rainy seasons and releasing it during dry ones.

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1. Observation 2. Inference 3. Inference 4. Observation 5. Inference.

Observing is capturing a property or a change by using the senses with or without the aid of an instrument. It does not involve judgement or reasoning.

1. The fish’s ventral fin measured 8.5 cm long.

Observation:- The size of the fish's ventral find is measured with an instrument; reasoning is not involved. The population of protozoans in the lake has increased since there is an increased level of carbon dioxide in the water.

Inference:-It is an inference because the population is measured but the reason why it increased is a conclusion or hypothesis product of analysis (reasoning). It is based on evidence, but not the evidence per se.

Inference:-The grizzly bear’s tracks were 5.5 cm deep in the mud; therefore, it weighs 410 kg:

Observation:-Many fish bones were found around the eagles’ nest; therefore, the eagles were eating fish.

Inference :- This is an inference, because it is a conclusion or hypothesis. Many fish bones were observed around the eagles'nest, but the eagles were not seen eating fish, but the observer thought (concluded) that the evidence of the fish bones supported the conclusion that the eagles were eating fish.

Disclaimer: your question is incomplete, please see below for complete ques9tion

are observations or inferences from observations.

The fish's ventral fin measured 8.5 cm long.

The grizzly bear's tracks were 5,5 cm deep in the

mud; therefore, it weighs 410 kg.

inference is

observation pne in the atmosphere increased to

34 parts per billion after the thunderstorm,

The population of protozoans in the lake has

increased since there is an increased level of

carbon dioxide in the water.

Many fish bones were found around the eagles'

nest; therefore, the eagles were eating fish,

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Explanation:

are. o. I, ,oo , I,I, o...,. r b Mom o,

ok .

Answer:

Infectious disease

Answer:

Parks and protected public lands are proven to improve water quality, protect groundwater, prevent flooding, improve the quality of the air we breathe, provide vegetative buffers to development, produce habitat for wildlife, and provide a place for children and families to connect with nature and recreate outdoors. I took this from the internet.