list and define the parts of an animal cell

Answer:

B. Lights

Explanation:

One way to see this is that every other source is natural, while this is mainly caused manly.

Answer: The correct answer is the letter B. Cell membrane.

Explanation: Cell membranes are present in both plants and the animal cell where it provide structural support and protection. The cell wall is only present in plant cells where it provides strength and protection against osmotic pressure. The nucleus works like the cell's control center and regulates cell activities. It is also where the cell's DNA is located.

Answer:

Estrogen

Explanation:

Osteoporosis mostly occurs in aged women, which is related to decreased estrogen level.

Answer:

The first cells were most likely primitive prokaryotic-like cells, even more simplistic than these E. coli bacteria. The first cells were probably no more than organic compounds, such as a simplistic RNA, surrounded by a membrane That’s what I think

Explanation:

Answer:

The initial cells were almost certainly rudimentary prokaryotic-like cells, even simpler than E. coli bacterium. The initial cells were most likely little more than organic substances wrapped by a membrane, such as a simple RNA. That's what I believe.hope this help

Explanation:

The lunar-linked rhythm of fiddler crab courtship is similar to the seasonal timing of plant flowering in terms of mechanism and function.

The lunar-linked rhythm of fiddler crab courtship is similar in mechanism and function to the seasonal timing of plant flowering in the following ways:

Therefore, the lunar-linked rhythm of fiddler crab courtship and the seasonal timing of plant flowering are examples of biological timing mechanisms that are influenced by environmental factors.

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Positron decay is a type of radioactive decay that involves the emission of a positron from a nucleus.

When an unstable nucleus undergoes positron decay, it emits a positron (a type of antiparticle with the same mass as an electron but a positive charge) and a neutrino. This results in the conversion of a proton into a neutron, thereby decreasing the atomic number by one.The product nucleus formed after the decay depends on the initial nucleus that underwent the decay. In the case of cobalt-55 (Co-55), which has an atomic number of 27 and a mass number of 55, it undergoes positron decay as follows:27Co55 → 26Fe55 + e+ + νeHere, Fe-55 (iron-55) is the product nucleus formed after Co-55 undergoes positron decay. The atomic number of the product nucleus is one less than that of the parent nucleus because a proton is converted into a neutron, and therefore the atomic number decreases by one. The mass number remains the same because the total number of nucleons (protons + neutrons) in the nucleus is conserved.

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During noncyclic photosynthesis, photosystem I functions to __, and photosystem II functions to__ option c. reduce CO2, oxidize.

The second protein complex engaged in the light-dependent activities of photosynthesis is called Photosystem I, and it is a multi-subunit protein complex that is embedded within the thylakoid membrane of chloroplasts. The protein complex uses light energy to drive the reduction of NADP to NADPH and the passage of electrons across the thylakoid membrane.

The two photosystems, photosystem I and photosystem II, are membrane protein complexes with many subunits that take part in oxygenic photosynthesis. Chlorophyll is the pigment that is primarily responsible for absorbing light energy. Thus, a pigment process or photosystem is used to describe it.

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Answer:

To find the speed (S), we need to use the formula:

S = D / T

where D is the distance traveled and T is the time taken.

Substituting the given values, we get:

S = 5 m / 200 s

Simplifying, we get:

S = 0.025 m/s

Therefore, the speed is 0.025 m/s.

Answer:

b: Chromosomes assort independently and crossing-over occurs.

•Crossing-over results in genetic recombination by producing a new mixture of genetic material. Each homologous pair consists of four chromatids, because each chromosome in the pair had replicated before meiosis began. Homologous pairs (tetrads) are still paired together and arrange in the middle of the cell.

Explanation:

i hope it's help you

1. Mutated DNA Strand = TTACGATAGACGGTAAACT

2. mRNA Strand = AAUGCUAUCUGCCAUUUGA

3. Amino Acid Sequence = Met-Leu-Ser-Ala-Leu

4. Specific Mutation Type = Frameshift Mutation

Adding a G after the 4th nucleotide in the original DNA sequence will cause a frameshift mutation, as it shifts the reading frame of the codons in the mRNA sequence. In the mutated DNA strand, the codons downstream of the insertion are read differently, leading to a completely different amino acid sequence.

The insertion causes the mRNA sequence to have a different reading frame, causing a shift in the reading of the codons. The resulting amino acid sequence is Met-Leu-Ser-Ala-Leu. This sequence is different from the original amino acid sequence due to the frameshift mutation caused by the insertion.

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The correct question is:

Add a G to the original DNA strand after the 4th nucleotide (not replacing anything).

Original DNA Strand = TTACAATAGACGGTAAACT

Fill in the blanks:

1. Mutated DNA Strand = __________

2. mRNA Strand = __________

3. Amino Acid Sequence= __________

4. Specific Mutation Type = __________

Carbon and Hydrogen atoms share an electron pair, forming covalent bonds special properties of carbon is ability to form double and triple bonds.

A molecule is the smallest unit of any material that is composed of one or more elements and is capable of existing independently while maintaining all of the substance's physical and chemical properties. Further atom division occurs within molecules.For instance, each atoms the particle of oxygen are represented by the letters Oh and Water vapour, together.

When ionic compounds come together and form bonds with one another, a molecule is created. Each atom shares an electron when a bond is formed between them. A molecule is created as a result of a covalent bond.

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The study titled "Biomechanical comparison of lumbar spine instability between laminectomy and bilateral laminotomy for spinal stenosis syndrome – an experimental study in a porcine model" compares the biomechanical aspects of lumbar spine instability between laminectomy and bilateral laminotomy procedures for spinal stenosis syndrome.

The mentioned study focuses on evaluating and comparing the biomechanical characteristics of lumbar spine instability resulting from laminectomy and bilateral laminotomy procedures in a porcine (pig) model.

Lumbar spinal stenosis syndrome is a condition characterized by the narrowing of the spinal canal, causing compression of the spinal cord and nerves.

The researchers aim to investigate the impact of these surgical techniques on lumbar spine stability and assess their potential effects on the range of motion, load-bearing capacity, and overall biomechanical performance of the spine.

The porcine model is commonly used in such experimental studies due to its anatomical similarities to the human spine.

The study's findings can provide valuable insights into the biomechanical considerations and potential implications of choosing between laminectomy and bilateral laminotomy for treating spinal stenosis syndrome, helping inform clinical decision-making and improving surgical outcomes.

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Answer:

2 : 2 BO : OO

Explanation:

Children either have blood group B or O thus the probability of a child being either blood group B or O is 50%.

The most likely scenario in this situation is an increase in the production of growth hormone (GH) or a genetic mutation that causes increased sensitivity of GH receptors.

GH stimulates the liver to produce insulin-like growth factor-1 (IGF-1), which promotes growth in bones and other tissues. Therefore, an increase in IGF-1 levels and/or GH levels would result in rapid growth, leading to an above-average height for the child's age.

Dihydropyridine (DHP) channel blockers are commonly used as calcium channel blockers to treat high blood pressure and angina. These blockers act by inhibiting L-type calcium channels in vascular smooth muscle, reducing intracellular calcium concentration, and resulting in vasodilation.

Therefore, the most likely effect of ingesting a DHP channel blocker would be an increase in intracellular calcium concentration, leading to an increase in calcium binding to troponin and activation of the contractile process in muscle cells.

Dodging a ball requires the coordination of several anatomical structures and pathways. The initial sensory information is received by the eyes and transmitted via the optic nerve to the visual cortex in the occipital lobe of the brain. The visual cortex processes the information and sends it to the posterior parietal cortex, where the decision to initiate movement is made.

The motor cortex then generates a motor plan, which is transmitted via descending tracts to the ventral horn of the spinal cord. From there, motor neurons send signals through the ventral root to activate the skeletal muscles responsible for moving the body out of the way of the ball. Therefore, the correct anatomical structures involved in this pathway are the Eye → optic nerve → visual cortex → posterior parietal cortex → motor cortex → descending tracts → ventral horn → ventral root → skeletal muscle.

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A double cousin is a first cousin who has four grandparents in common with you.

A double cousin is a first cousin twice over. They have the same grandparents on both sides. This can occur when one double first cousin's parents are also the siblings of another double first cousin's parents (s). When two siblings get together, it is possible for them to have children for two other siblings.

The most common word is "double cousin." But you share a genetic relationship with half-sisters. You and your first cousin share about 25% of your DNA rather than the typical 12.5% that first cousins typically share.

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The DNA polymerization takes place continuously on the template strand.

DNA polymerization is the process of synthesizing a new DNA strand from a pre-existing template. This process, as well as other processes such as DNA replication and protein synthesis, are examples of biological polymerization.Let's learn about the strand names in the DNA molecule.There are two strands in DNA, one of which is called the leading strand, and the other is called the lagging strand.

When DNA is replicated, one strand of the parent molecule serves as the template for the complementary strand that is synthesized. The parent strand that runs in the direction from 3’ to 5’ is referred to as the template strand, while the newly synthesized complementary strand that runs in the opposite direction from 5’ to 3’ is referred to as the leading strand.Therefore, DNA polymerization takes place continuously on the leading strand.

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nuclear fusion

Explanation:

sorry if I'm wrong

Answer:

tails

Explanation:

I hope this helps

Answer: The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by amniotic membranes. The amniotes include reptiles, birds, and mammals. A key adaptation that permitted reptiles to live on land was the development of scaly skin. I hope this helps

Explanation:

Answer: Vacuoles

Explanation:

Answer:

Explanation:

Answer: Time yourself, takes notes(postcards), try listening to music, try exercising to see if it relieves stress, get more sleep, test yourself, go to your teacher for study guides or explanations

Explanation: Help yourself for a better future, and also Search for questions online or from your teachers

Answer:

They are different.

Explanation:

I think poultry refers to ALL sorts of birds, such as Turkey and the like, whereas chicken is only one type of poetry. So they aren't technically different, but poultry is a much broader term.

Answer: Poultry are domesticated birds used for meat, eggs and feathers. Chickens fall into the poultry category. So, no they are not the exact same thing, chickens are just a part of poultry.

Answer:

bacteria do not have a distinct nucleus that separates DNA from ribosomes

Explanation:

hope this helps

Answer:

H

Explanation:

I learned this in bio

lighter bleeding, and others may skip their periods entirely. An abnormal lapse in monthly menstruation

healthline

Answer:

Cell Wall, Chloroplasts, and Lysosome

Answer:

cell wall chloroplast lyosomes

Explanation:

。°˖ ʚɞ ꒦Answer: False-It IS possible to control the amount of chemical exposure!。°˖ ʚɞ ꒦

So sorry this is late, dont even know if you still need the answer

⸜(｡˃ ᵕ ˂ )⸝

The assertion that controlling chemical exposure in salons is impossible is false. Safety measures like ventilation, personal protective equipment, and good work practices can greatly minimize chemical exposures.

The statement that it is impossible to control the level of chemical exposures for both salon workers and their clients is false. In any given salon environment, implementing safety measures such as proper ventilation, use of personal protective equipment (PPE), and following good work practices can significantly reduce the level of chemical exposures. Employers can also provide training to their workers about the hazards associated with the chemicals they are handling, and how best to protect themselves and their clients. Therefore, while total elimination of exposure might not be feasible, it is possible to control the level of chemical exposures in a salon setting.

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Answer:

lab performs test by giving bacterial colonies the same amount of different antibiotic and growing them under the same conditions .

Answer:

Major organs involved in the digestive system include the mouth, stomach, small intestine, large ... When it reaches your stomach, a sphincter opens and dumps the food in. ... To move into the small intestine, chyme must pass through the pyloric sphincter. From here it enters the duodenum, the first part of the small intestine.

Explanation: