Question in the picture

Answer:

ok i go

Explanation:

your experience is so so good and your frofile

Answer:

What are you even listing!

Answer:

See the answer below

Explanation:

Obligate anaerobes are microbes that can only survive in oxygen-deficient environments. They are killed by the normal atmospheric level of oxygen and will only thrive in environments whose oxygen levels are lower than that of normal atmospheric level.

Obligate bacteria such as Clostridium botulinum obtain their energy through anaerobic respiration processes such as fermentation and anaerobic respiration. During this process of fermentation, the lactic acid pathway is mostly used but other fermentation pathways such as propionic acid, mixed acid, acetogenesis, and methanogenesis pathways can be used.

Answer:

The correct answer is - Phase I.

Explanation:

Clinical phase are group of stages in which scientists or researchers  conduct various experiments with a health intervention to get enough evidence for a process to use as a medical treatment. Clinical research is conducted on medical devices, drug candidates, and vaccine candidates.

In the phase I, in this phase intervention takes place in human subjects. These subject usually observed until several half-lives of the drug have passed. This phase is designed to assess the tolerability, pharmacokinetics, safety (pharmacovigilance), and pharmacodynamics of a drug

Answer:

Multiaxial joint

Explanation:

Joint is understood as the set of structures that allow the union of two or more bones and / or cartilage with each other. The synovial joint is a union that is established between bones that have different articular surfaces. There are factors that determine the axes of space in which a joint can be mobilized, in such a way that uniaxial, biaxial or multiaxial joints are identified. The multiaxial joint is movements in around three axes or three degrees of freedom. These joints can perform any movement. This movement that is carried out in the three axes is called circumduction movement (in a circle). The movements that a synovial joint can carry out are sliding, extension, flexion, abduction, adduction, medial rotation, lateral rotation, circumduction, protrusion, retrusion, diduction, pronation, supination, inversion, eversion, among others.

Answer:

refers to the number of times the heart beats within a certain time period, usually a minute.

Or

it is the speed of the heart beat measured by the number of contractions of the heart

Answer:

prezygotic.

Explanation:

In Ecology, when birds use specific songs, coloring, and mating dances to attract mates of their species. This is an example of prezygotic reproductive isolation.

Answer:

catabolite activator protein (CAP)

Explanation:

Catabolite activator protein (CAP) is a homodimeric transcriptional activator required for transcription initiation of catabolite-sensitive genes in Escherichia coli. CAP contains a ligand-binding domain at its N-terminus and a DNA-binding domain at its C-terminus. CAP activates transcription by binding at target DNA sites on promoter sequences, thereby enhancing the ability of the RNA polymerase to bind and initiate transcription. CAP binds cyclic AMP (cAMP) to increase CAP’s affinity to DNA and thus activates the transcription of genes for catabolism, such as the lactose (lac) operon genes (the lac operon is a set of genes that encode for enzymes taking part in lactose metabolism).

Answer:

C) Smallest fragment of DNA that traveled the fastest

Explanation:

During this gel electrophoresis, DNA passes through a agarose obstacle course, where the poles opposite to wells are positively charged electrodes. Since DNA is negative in charge, when it is placed in wells and electric current is run, DNA will try to run towards the positive end.

Shorter DNA segments can easily  "wiggle" through the pores of the gel whereas, longer DNA segments need to do more "squeezing" to move down the gel.

Therefore, Band X in this figure is the shorter DNA segment as it move through the lane at a faster rate and reaches very far when compared to longer DNA segments.

Smallest fragment of DNA that traveled the fastest. So, the correct option is (C).

Gel electrophoresis is defined as the technique that is used in laboratories to separate charged molecules such as DNA, RNA and proteins according to their size where the charged molecules move through a gel when an electric current is passed through it.

During gel electrophoresis, the DNA passes through an agarose barrier course, where opposite poles of the wells are positively charged electrodes, so the DNA is negatively charged when it is placed in the wells and an electric current is passed through it. DNA will try to run towards the positive end.

Shorter DNA segments can easily "squeeze" through the pores of the gel, while longer DNA segments require more "squeezing" to move down the gel. Band X in this figure is the short DNA segment as it moves through the lane at a faster rate and reaches much farther than the longer DNA segments.

Thus, smallest fragment of DNA that traveled the fastest. So, the correct option is (C).

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Answer:

Biologists classify organisms because:

Answer:

Its D, The cell membrane(also known a the plasma membrane) has a job in which it has to allow passage in and out of the cell. Therefore it can prevent harmful substances from entering the cell. Think of it as security, either allowing you access or denying you depending on if you're a threat

Answer:

D) it prevents harmful substances from entering a cell

Explanation:

The entire purpose of the cells membrane is to contain its organelles, the structures within it and prevent them from getting harmed by outside material.

Radicle......................

Answer:

The water vascular system of echinoderms functions in locomotion and feeding.

Explanation:

The water vascular system of echinoderms is responsible for the functions in locomotion and feeding. The water vascular system is a hydraulic system that is used by echinoderms for example sea stars and sea urchins, for the purpose of locomotion (movement), food and waste transportation, and respiration. This system is composed of canals connecting numerous tube feet.

Answer:

B

Explanation:

Answer:

1. fossil record:

Fossils are organisms that get buried in sedimentary rocks. These are formed at different times. The study of fossils existing in the different rock layers indicates the time period when they existed. Thus different life forms have been formed at different times in the history of the earth.

fossil bird Archaeopteryx is considered as a connecting link between reptiles and birds indicating that birds evolved from reptiles.

2 comparative anatomy:

Homologous organs - such organs that have different embryonic origins but play different roles.

The forelimbs of whale, bat, deer, rabbit

Homologous organs - such organs that are the same in structure and embryonic origin but play similar roles.

wings of a bird and wings of the insect. The wings of the birds are modified

3. DNA sequence can be helpful in finding relations among organisms. Biogeography also helps in identifying the geographical distribution of organisms, to know how and when species may have evolved.

Answer:

A person eats one hard-boiled egg and digests the egg fully. During cellular respiration MOST of the Calories in the egg is converted to heat.

Answer:

food shelter water

Explanation:

food shelter water

Answer:

Chemical energy from food molecules (potential energy) may also be transformed to mechanical energy (kinetic energy) when the body moves. In every energy transformation, some energy is given off as heat. This is why the body warms up during different activities like exercising, lifting weights, and even digestion!

Explanation:

Answer:

Basically an Anti-Condon is a sequence of three nucleotides forming a unit of genetic code in a transfer RNA molecule, corresponding to a complementary codon in messenger RNA.

Explanation:

Codons are trinucleotide units that present in mRNA and codes for a particular amino acid in protein synthesis. Anticodon is trinucleotide units that present in tRNA. It is complementary to the codons in mRNA.

Hoped this helped :)

Answer:

descent with modification

Answer↷

Science, any system of knowledge that is concerned with the physical world and its phenomena and that entails unbiased observations and systematic experimentation. In general, a science involves a pursuit of knowledge covering general truths or the operations of fundamental laws.

➦I hope it seemed helpful to you!

Answer:

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Answer:

The presence of appropriate receptor dictates which cells will be receptive to a particular signal.

Explanation:

Some cells only respond to certain molecules because they have receptors to accept those molecules. Hence, due to this, only some molecules can be accepted by the cells.

Hormones are secreted by endocrine glands into the blood. The endocrine glands, such as the pituitary gland, secrete their hormones directly into the blood, but not all cells of the body can bind to the molecule and perform the cellular functions.

The cells' surface has receptors for molecules such as peptide molecules or polar hormones that can't directly enter the cell. Hence, they bind to the cell surface receptors and send signals with respect to those hormones.

A hydrophobic hormone can directly enter the cell as it can easily pass the plasma membrane. After entering the cell, it has some receptors in the nucleus or in the cytoplasm. This hormone can perform functions such as gene activation after binding with them.

Hence, after binding with receptors, they show their performance, and not every cell has the same receptors for a single molecule.

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Answer:

Protein combining

Explanation:

The strategy involving the combination of two plant proteins to get all the essential amino acids is referred to as protein combining.

The practice of protein combining is common among vegans due to the general belief that a single plant-based protein does not contain all the necessary amino acids for the body. Thus, one would need to combine 2 plant-based proteins in order to get all the essential amino acids for adequate health.

Answer:

meiosis

Explanation:

meiosis occurs in reproductive organs

Answer:

Pure liquid water has a pH of 7 it means pure water is neutral.

Answer:

D: It would fizz in acid.

Explanation:

Marble is a limestone & will have an acid reaction that is similar to the limestone from which it was formed.

Answer:

yup  

A: it would show fossils.

B: It would not fizz in acid.

C: It would have stripes.

D: It would fizz in acid.

Explanation:

Answer:

Explanation:

what

Answer:

The correct answer is -

Actin produces thin contractile filaments within muscle cells,

Myosin produces the dense contractile filaments within muscle cells

Explanation:

Actin is a globular protein that makes actin filaments by arranging in the long spiral chain or produces thin contractile filaments within muscle cells. It is found in cell cytoplasm as well as in the nucleus in eukaryotic cells.

Myosin is a motor protein that produces the dense contractile filaments within muscle cells and plays role in generating movement and force from chemical energy.

Answer:

Georges Cuvier.

Explanation:

Georges Cuvier (1769-1832) fue un zoólogo quien propuso que la evolución era el resultado de extinciones producidas por catástrofes a las cuales les sucedían nuevas creaciones con distintas especies. Los ecosistemas con las catástrofes eran destrozados y en los suelos de estos quedaban los  restos de los animales extintos formando parte de los estratos de la tierra.