Which of the following statements is true? Both plants and animals can make food. Chlorophyll is not needed for photosynthesis. Pollination could not occur without leaves. Female egg cells grow in the ovary.

The correct answer is: B. Changes made to proteins lead to changes in behavior.

Genes do not impact neuron functioning directly, but rather encode proteins that build and control the functioning of the brain through which behavior is expressed. Behavior is influenced by both, inheritance and environment. So, for example, social information (environmental influence) can impact brain gene expression via epigenetic modifications.

Exposure of asbestos combined with smoking could dramatically increase the chance of developing lung cancer.

The cross bridge cycle in a muscle contraction begins when calcium ions (Ca2+) bind to the protein troponin. This triggers the exposure of myosin-binding sites on actin, allowing myosin to bind and create cross-bridges, causing contraction. ATP plays a key role in breaking these cross-bridges and re-cocking myosin heads for the next cycle.

The cross bridge cycle in a skeletal muscle contraction starts when Ca2+ (calcium ions) from the sarcoplasmic reticulum binds to troponin. This triggers a conformational change in tropomyosin, exposing the myosin-binding sites on the actin filament. This allows myosin heads to bind to these sites, creating cross-bridges. While bound, the myosin heads perform a power stroke, pulling the actin filament towards the center of the sarcomere. An ATP molecule then binds to the myosin head, leading to the detachment of the cross-bridge, and the breakdown of ATP to ADP and Pi, effectively 'recocking' the myosin head, making it ready for a new cycle once more Ca2+ becomes available, and the myosin-binding sites on actin get exposed again.

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TAC-AGA-CTA-ACC-ATG

When transcribing DNA sequence from mRNA A is T, U is A, Cis G and G is C

TAC-AGA-CTA-ACC-ATG  THIS SHOUD BE THE RIGHT ANSWER I AM 99.99% SURE

That species has genes that yield red, pink or white flowers.  The pink gene is dominant. All hybrids contain red/white genes, but they are recessive. Thus, the cross can unite red/white genes in hybrids with no pink, yielding red/white flowers.  

The genes of that species can produce flowers that are red, pink, or white. There is a dominant pink gene.

It explains how phenotypes from two different alleles can coexist, imperfect dominance has genetic significance.

Mendel also discusses the Law of Dominance, which states that only one allele can be dominant over the other and that it can come from either parent.

Red/white genes are present in all hybrids, although they are recessive. In hybrids without pink, the cross can therefore combine red/white genes to produce red/white flowers.

Both alleles will express equally in the heterozygote because neither is dominant over the other in codominance.

Therefore, incomplete dominance is most likely explanation for these results.

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Clouds form when air reaches the dew point and condenses around particles in the atmosphere; they can form near the Earth's surface or in the upper atmosphere but not in areas with low humidity or few particles.

When the air in the atmosphere reaches the dew point and contains enough particles like dust or smoke to provide condensation nuclei, condensation occurs and clouds are formed. Clouds that form at the ground level are known as fog. It is incorrect that clouds form where the air has very low humidity because clouds require a certain level of humidity to maintain the water droplets or ice crystals that make up the cloud. Furthermore, without particles in the air, there would be nothing for the water vapor to condense around, so clouds typically do not form in areas with very few particles.

Answer:

C.  

insertion

Explanation:

✿  The Cross-Country Skier prefers High Elevation but Flat Terrain

✿  It means he is looking for Plateau

✿  The Best Destination for the Skier would be : Yellowstone Plateau

A cross-country skier who prefers high elevation but flat terrain is looking for a ski vacation destination,the best destination for the skier, the Yellowstone Plateau.

Waves cause erosion with coastlines and deposit sand take far from the shore. Erosion cause as surface water carrying sediment and the sediment is deposited pass oceans and lakes.

Thus, the Yellowstone Plateau is correct.

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The correct answer is option A, Natural Selection

In all the three options namely Artificial Selection , Genetic Engineering  and Gene Splicing  there is involvement of human beings in gene modification. While in the case of natural selection genetic modification occurs through the evolutionary process through several hierarchical orders.

Answer:

Baleen whales, are largest mammals on earth. These whales use specialized structures which is known as baleen to capture it's prey. A baleen functions as a sieve to filter out prey from water. Numerous baleens are present in the upper jaw of the whale.  Baleens are flexible structural appendages made from the protein keratin present in the place of tooth in toothless baleen whales. A baleen whale opens it's mouth to consume water from the ocean. This water contains large amount of prey population. It then partly shuts the mouth and presses the tongue against the upper jaw. The water passes off from the sideways by baleens. The prey is then swallowed by the whale. A baleen whale is able to capture zooplanktons such as krills and copepods and small fishes from the food chain because of these specialized structures.  

A baleen whale does not hunt for it's prey as it exhibit specialized structures to capture the prey. Therefore, it is the most efficient feeder in the ocean food web.

Blank 1 is protein digestion

Blank 2 is urine

Blank 3 is Viruses

Blank 4 is  pathogens

Blank 5 Achilles tendon

Blank 6 atrium

The general term for any carbohydrate monomer is a monosaccharide.

Ex: glucose and fructose

Answer:

The correct answer is monosaccharide.

Explanation:

The carbohydrates, which are generally known as polysaccharides are formed of monomers known as monosaccharides. The monosaccharides are the basic sugar as it comprises one sugar unit, which cannot be dissociated further into simpler forms. Monosaccharides are the fundamental unit of carbohydrates. They are sweet in taste and are formed of oxygen, carbon, and hydrogen atoms.

Answer: The correct answer is 25%.

As per the question, genetic disorder is caused by recessive allele. This means that that genotype of the person having the recessive disorder is gg.

A dominant allele ( depicted by capital letter like G in this case) always masks the expression of recessive allele.

A recessive disorder will only be caused when the person is homozygous for the recessive allele ( like in this case gg is the genotype that will cause the disease.

In the given question, genotypes of parents is Gg and Gg.

The chances that their children will inherit the disorder is 25%. Refer punnett square.

Therefore, any child of two Gg parents has a 25% chance of inheriting the disorder.

When both parents have the genotype Gg for a genetic disorder caused by a recessive allele, each child has a specific probability of inheriting the disorder. The parents' genotypes can be represented as follows:

- G (dominant, healthy allele)

- g (recessive, disorder-causing allele)

The possible combinations of alleles that a child could inherit from these parents can be determined using a Punnett square:

- GG (inherits a G from each parent)

- Gg (inherits a G from one parent and a g from the other)

- gg (inherits a g from each parent)

The Punnett square shows that each child has:

- A 25% (1 in 4) chance of inheriting GG (healthy, no disorder)

- A 50% (2 in 4) chance of inheriting Gg (carrier, no disorder)

- A 25% (1 in 4) chance of inheriting gg (affected by the disorder)

Answer:

B. 16 on E2020

Explanation:

The correct answer is polydipsia, polyuria, weight loss, and polyphagia.  

The classic signs of type I diabetes mellitus comprise polyuria, polydipsia, weight loss, and polyphagia. The recurrent infections and visual changes are the signs of diabetes. Weakness, hypotension, and mental confusion are the signs of hypoglycemia. Abdominal pain, vomiting, and sweet breath are the sign of diabetic ketoacidosis.  

A cross between a diploid individual and a tetraploid individual produces triploid offspring.  There are many species of plants that are triploid, but those come from crosses between two triploid individuals. In those cases, the chromosomes from one parent match up with the chromosomes from the other parent just fine. The same is not true with a cross of a tetraploid and a diploid.  In that case, one third of the chromosomes are unmatch, causing many offspring to die, to be sterile, or to be generally unfit.  Long story short, the answer you seek is False.

the answer is C. hope this helps

An aquarium with water plants and a snail will enable a continuous cycle of O2 and CO2 due to the natural gas exchange between the aquatic plants during photosynthesis and the respiration of both plants and snail.

In which sealed container would organisms be able to continuously cycle oxygen (O2) and carbon dioxide (CO2) gases? The answer is C. An aquarium with water plants and a snail. This setup allows for a natural exchange of gases between the organisms involved. During the day, water plants absorb CO2 and release O2 through the process of photosynthesis, providing oxygen for the snail. At night, plants consume O2 and release CO2 through respiration, while the snail also respires, consuming O2 and releasing CO2. This creates a balance and allows for a sustainable exchange of gases within the container. Unlike an aquarium with plastic plants where there's no photosynthesis, or terrariums with animals that do not have a complete set of producers and consumers for the gas exchange, this aquarium supports a simple but effective ecosystem.

Float or tread water until you can swim out of the current. Your instincts may be to fight the current and swim directly back to shore. However, that’s the most dangerous thing you could do. Instead, focus on keeping your head above water until the current has weakened and you're able to swim through its boundary.

Most rip currents weaken about 50 to 100 yards (46 to 91 m) from shore. Once the current has begun to subside, you’ll have an easier time swimming out of it.

Even the strongest swimmers can’t fight a rip current. Trying to swim against it can lead to exhaustion and drowning.

Remain calm. If you get caught in a rip current, don't panic. You'll have a better shot at getting out of the situation if you stay calm. Keeping your cool can help you conserve energy and think clearly.

Tips for Staying Calm

Try to control your breathing. Keep your head above the water and take slow, deep breaths.

Think positive, calming thoughts. Tell yourself “Don’t panic. You can make it out of this rip current. Don’t fight it, conserve your energy, and look for breaking waves at the edge of the current.”

Remind yourself that a rip current does not drag you underwater. Rip currents only pull you away from the shore. Worrying that the current will pull you underwater could lead to panic.

Call for help if you’re not a strong swimmer. Escape involves floating with the current, then swimming parallel to the shore to cross the current's edge. If you can’t swim, call for help and wave your arms to get the attention of a lifeguard or other people on the beach.

If you know how to swim, you should be able to escape and swim back to shore at an angle away from the current. However, if you have any doubt about your ability to break free of the current, call and wave for help.

If stuck in a rip current, do not swim directly against it. Instead, call for help, swim parallel to the shore to escape the current, then swim back to shore at an angle. If unable to escape, float or tread water until out of the current.

What to Do If You're Stuck in a Rip Current

When caught in a rip current, it's crucial not to panic. Rip currents are powerful, narrow bands of water moving away from the shore. Attempting to swim back to shore directly against a rip current can be extremely exhausting and is not recommended. The following steps should be taken:

Call for help immediately, signaling to lifeguards or bystanders on the shore.

Swim parallel to the beach in order to escape the narrow current.

Once out of the current, swim at an angle away from the current and back toward the shore.

If you're unable to swim out of the rip current, try to float or tread water calmly until you're out of the current, then head back to shore. Awareness and understanding of rip currents are vital for beach safety, and noticing warning signs can prevent such situations.

The major products that result from the Krebs cycle are NADH,  FADH and ATP in that order.  

1-  Answer : B (AUG AAA CGU CCU)

2- Answer : B (TAC AAA AGA GGG)

3- Answer : C (GGCGATACG)

The characteristics show that the given fish is a sturgeon.

Sturgeon is a general name for the twenty-seven fish species belonging to the family Acipenseridae. Their origination dates back to the Triassic, that is, about 245 to 208 mya.  

The sturgeons are late developing, and long-lived fishes with different features like a heterocercal caudal fin identical to that of sharks, and an elongated spindle-like body, which is scaleless, smooth-skinned, and armored with five lateral rows of bony plates known as scutes.  

Answer:

It has a single fin on its back near its tail.

It is covered in spots.

It has a forked tail fin.

Explanation:

edge 2020-2021

Dad: TtBb

Mom: ttbb

You have to use distribution for dihybrid crosses.  Meaning, the first allele of each trait has a equal chance of being paired with the other allele of the other trait.  So for example with Dad, I will number the traits:

T(1)t(2)B(3)b(4)

To set up the possibilities from Dad, it would be 13, 14, 23, 24: TB, Tb, tB, tb.  Same idea goes for Mom, except since all alleles are the same, you only need to make one column for Mom, since if you did all 4, the other 3 would just be repeats of the 1.

Cross:

                 tb

TB           TtBb

Tb           Ttbb

tB            ttBb

tb            ttbb

The phenotypic ratio is 1 Tall Brown: 1 Tall Blue: 1 Short Brown: 1 Short Blue

Dr. Nina Jablonski's hypothesis on the prevalence of darker skin in high-UV areas is based on the protective role of melanin against UV radiation, the importance of folate for human reproduction, and the observation that people of African descent have the same version of the MC1R gene.

Dr. Nina Jablonski based her hypothesis regarding the prevalence of darker skin in high-UV areas on several pieces of compelling evidence. Firstly, she noted that the melanin in darkly pigmented skin acts as a protective layer, shielding DNA from harmful UV radiation, which is known to cause skin cancer. Secondly, she found that melanin also plays a crucial role in preserving folate levels in the body, by preventing this essential nutrient from being destroyed by UV radiation.

The importance of folate for human reproduction is well-documented, and its degradation due to UV radiation could potentially lead to a decrease in reproductive success. Lastly, Dr. Jablonski observed a genetic aspect - all individuals of African descent have an identical version of the MC1R gene, which suggests that this gene was under selection pressure.

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Answer:

The most appropriate answer would be option A.

The humerus and femur are the bones of the appendicular skeletal system.

They both attach their respective limbs to the axial skeletal.

The humerus is a long bone of the arms which connects it to the skeletal through scapula.  

Similarly, the femur is a long bone of the thigh which connects the lower limb with axial skeletal through the pelvic joint.

The humerus and femur are similar in that B) they both have similar joints at each end, making them long bones that function as levers in their respective limbs.

In what way are the humerus and the femur similar? The correct answer is B. They both have similar joints at each end. Both the humerus and femur are classified as long bones, which means they are cylindrical in shape, being longer than they are wide.

These bones function as levers and move when muscles contract. The humerus is the only bone in the upper arm, and it forms part of the shoulder joint at its proximal end where it connects to the scapula, and the elbow joint at its distal end.

The femur is the single bone of the thigh, forming the hip joint at its proximal end with the pelvis, and the knee joint at its distal end with the tibia. Both have epiphyses covered with articular cartilage and diaphyses with a marrow cavity.

Despite being different in terms of location and the specific movements they facilitate, the structural similarity as long bones with joints at each end is notable.

Answer:

Commensalism

Explanation:

Commensalism is when one organism benefits and the other doesn't benefit and is also not harmed. The tree is helping the orchid and the orchid isn't benefiting or harming the tree.

The anatomy (Comparative Anatomy) chart contains the ones that say " compares the limbs of different organisms" and "compares fossilized structures to living organisms".

The cells (Molecular Biology) chart contains the ones that say "compares the genomes of different organisms" and "compares cells of organisms".

If this is for Plato there should be a chart that has one column for anatomy(Comparative Anatomy) and one for cells(Molecular Biology). Hope this helps.

The question involves two fields in biology: genomics, which compares the genomes of different organisms, and comparative anatomy, which compares physical structures in different organisms, including limbs and fossils.

The question pertains to two specific fields within biology: genomics and comparative anatomy.

Genomics is a field that focuses on the study and comparison of genomes or DNA sequences within and between species.

In this area, scientists compare the genomes of different organisms to identify key similarities and differences, which can provide insights into evolution, disease susceptibility, and other biological phenomena.

On the other hand, Comparative Anatomy is field concerned with the study of comparing structural differences and similarities in different species.

This may involve comparing the limbs of different organisms or contrasting fossilized structures to living organisms to gain insights into evolutionary processes and shared ancestry.

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Merry Christmas!

Answer:

C. shrubs

Explanation:

The reason I say this is because the other options don't make sense because are tall strong tress's is a lock of women's a hair and die is not part of succession. Option b is part 2 of the secession stage.

The answer is Decreases

The two functional groups found on every amino acid carboxyl acid and an amine. So the option is B.

Ans.

The amino acids are organic molecules, having two functional groups, a carboxyl group (-COOH) and an amino group (-NH2) along with a side chain (R group) and a hydrogen atom. The amino acids are known as building blocks of protein molecules as join together to make protein.

Two amino acids join together with the help of a peptide bond, formed  between carboxyl group of one amino acid and amino group of another amino acid.

Thus, the correct answer is option B). 'carboxyl and amino group.'