If a person lacked the ability to form C5, what direct result of complement could still occur?
a. Cytolysis
b. Opsonization
c. Chemotaxis

Answer:

Recycling!

Explanation:

A basic answer, but a globally, recycling is one of the most well known ways to help the environment. It conserves energy, reduces air and water pollution, reduces greenhouse gases, and conserves natural resources. Stanford recycled, composted, and otherwise source reduced 62% of its waste and reduced landfill by 35%. Recycling paper alone cuts down 75% of air pollution!

Antigens A and B are found on the red blood cells of type o blood. This statement is false.

The presence or absence of antigens A and B determines an individual's blood type. In the ABO blood typing system, there are four major blood types: A, B, AB, and O.

Type A blood has antigen A on the surface of red blood cells, type B blood has antigen B, type AB blood has both antigen A and antigen B and type O blood has neither antigen A nor antigen B. Instead, type O blood has antibodies against both antigens A and B in the plasma. This means that individuals with type O blood can donate their blood to individuals with any ABO blood type, making type O blood the universal donor.

It's important to note that blood types are determined by the presence or absence of specific antigens on red blood cells, and these antigens play a crucial role in blood transfusion compatibility and organ transplantation.

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Answer:

Explanation:

isotonic - direction of osmosis is equal on both sides

hypertonic - direction of osmosis is outside of the cell

hypotonic- direction of osmosis is into the cell

The action of the zygomaticus major is that it "draws the angle of the mouth upward and laterally". When the zygomaticus major contracts, it pulls the skin and soft tissues of the cheek upward and outward, creating a smile or grin.

The zygomaticus major is a facial muscle that plays a significant role in facial expressions, particularly in smiling.                                                   Its primary action is to elevate the corners of the mouth, resulting in the upward movement of the lips.                                                      The muscle originates from the zygomatic bone, which is commonly referred to as the cheekbone, and extends downward to insert into the skin at the corner of the mouth.                                                                                                                           It works in conjunction with other muscles, such as the orbicularis oculi and the levator labii superioris, to produce various facial expressions and movements.                                                                                                                                               It's important to note that the zygomaticus major is not solely responsible for smiling, as multiple facial muscles work together to create different expressions.                                                                                                                                                               However, it is a key muscle involved in producing a smile by raising the corners of the mouth.                                                                       Therefore, the action of the zygomaticus major is it draws the angle of the mouth upward and laterally.

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Answer:

cells are surrounded by a structure called the cell membrane — which, much like the walls of a house, serves as a clear boundary between the cell's internal and external environments. The cell membrane is sometimes also referred to as the plasma membrane.

Answer:

The plasma membrane, or cell membrane

Explanation:

Explanation:

A heterotroph is an organism that eats other plants or animals for energy and nutrients. The term stems from the Greek words hetero for “other” and trophe for “nourishment.” ... Examples include plants, algae, and some types of bacteria. Heterotrophs are known as consumers because they consume producers or other consumers.

Answer:

true

Explanation:

Answer:

the answer will be a and b

Answer:

incomplete dominance because the fruit color of the  offspring is an intermediate form of the parents' fruit  color

Sry if I'm wrong, have a nice day.

The given image shows incomplete dominance because the fruit color of the offspring is an intermediate form of the parents' fruit color. The correct option is D.

When both alleles of a gene are only partially expressed at a locus, it is known as incomplete dominance.

This sort of gene interaction frequently produces an intermediate or distinct phenotype. Additionally called partial dominance.

Two other types of genetic inheritance are codominance and incomplete dominance. It basically means that no allele can prevent or stifle the production of the other allele through codominance.

Incomplete dominance, on the other hand, occurs when a dominant gene does not entirely block the effects of a recessive allele.

Fruit produced by two parents and fruit produced by one of their children are shown in the photo.

Because the fruit color of the offspring is an intermediate version of the fruit color of the parents, it is incomplete dominance.

Thus, the correct option is D.

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Answer:

BOTH

Explanation:

Hope it helps :)

At the Southeast Indian Ridge new oceanic crust is forming.

Option 1 is correct.

Seafloor spreading occurs when new magma pushes existing lithosphere aside as it rises along the ridge. The new crust that is developing along the ridge has space thanks to this spreading.

Mostly basalt, the most prevalent rock on Earth, erupts at spreading centers along the mid-ocean ridge. The mid-ocean ridge's rate separation varies globally since this spreading takes place on a sphere.

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Detergents typically create micelles, whereas phospholipids form bilayers in water.

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In hyper-gravity, a greater force would be exerted on the body, which could cause muscles to increase in size as well as make them stronger. this could also result in bones becoming thicker and there would be an increase in bone density. With regards to the human species, if they were to evolve on a planet with twice the normal gravity, they would likely become more muscular and have thicker bones in order to be able to cope with the force.

Hyper-gravity can have a number of effects on the physiology and anatomy of living organisms, particularly on the musculoskeletal system. The effects of hyper-gravity on the musculoskeletal system would be significantly different from the effects of hypo-gravity. IIt would be subjected to increased stress and strain, leading to a number of potential physiological changes.

One of the primary effects of hyper-gravity on the musculoskeletal system would be an increase in bone density. This would occur as a result of the increased stress on the bones, which would stimulate the production of new bone tissue. Additionally, the muscles would also be subjected to increased stress, leading to an increase in muscle mass and strength.

In terms of evolution, it is likely that the human species living on a planet with twice normal gravity would evolve to have a more robust musculoskeletal system in order to cope with the increased stress. This could include thicker and stronger bones, as well as larger and more powerful muscles.

Overall, the effects of hyper-gravity on the musculoskeletal system would be significant, and would likely lead to a number of physiological changes and adaptations in order to cope with the increased stress.

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Answer:

The four parts of a control system include the controller, amplifier, actuator, and lastly, feedback.

The amount of force a muscle can produce with a single maximum effort is called muscular strength. It is a measure of the force of a muscle.

Muscular strength is a measure of a muscle to produce a maximum force against a particular object.

Muscular strength and muscular flexibility are fundamental to assess the ability of a muscle to exert work.

Some examples of muscle-strengthen physical exercises include, among others, climbing stairs, or the use of resistance bands.

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The process of photosynthesis directly involves the cycling of matter as it converts the radiation energy from the sun to stored chemical energy.

Photosynthesis may be defined as a type of process through which green plants and some photosynthetic algae synthesize their own in the form of glucose food with the help of carbon dioxide and water in the presence of sunlight.

The complete reaction of photosynthesis is as follows:

Apart from photosynthesis, the mechanism of cellular respiration directly involves the cycling of matter.

This is because the reactants of cellular respiration are the products of photosynthesis and the reactants of photosynthesis are the product of cellular respiration.

The process of cellular respiration involves the derivation of energy from complex food molecules in the presence of oxygen.

Therefore, the process of photosynthesis directly involves the cycling of matter as it converts the radiation energy from the sun to stored chemical energy.

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Answer: when scientists just found out that cells made every living thing, they wanted to concentrate on the many types and variation of a cell. They did this by isolating the cell in a petri dish, and it is still used today.

The gamete cells contain 50% of the chromosomes found in the body cells of an organism after meiosis.

Meiosis is basically a type of cell division which occurs in the sexually reproducing organisms. This division is observed during the formation of gametes and results in the reduction of the chromosomes in the gametes.

The normal body cells in our body diploid in nature. This means that they contain two complete sets of chromosomes, that is, 23 pairs of chromosomes. When a gamete is formed due to meiotic division, only one half of the chromosome complement is passed on from the parent and therefore the germ cell will contain 50% of the chromosomes found in the body cells of an organism after meiosis.

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The Fst statistic reveals the degree of genetic variation between populations. If Fst is high, it indicates significant geographic population subdivision, while if it is low, it indicates little geographic population subdivision. As a result, Species A has significant population divergence in comparison to Species B.

Species A - observed genotype frequencies at two sampling locations and for both locations combined Genotype Frequencies

Allele Frequencies

HWE expected

A/AA/aa/a

Total#heterozygote frequency

individuals рq2pq

Location 130101050.70.30.42

Location 25 103550.20.80.32

Location 1 + 352045100

Location 2

The observed allele frequencies (p and q) and the expected heterozygote frequencies (2pq, assuming Hardy-Weinberg equilibrium) for Location 1 + 2:

Species A Observed allele frequencies: p=0.55 q=0.45

Expected heterozygote frequencies: 2pq = 2(0.55)(0.45)

                                                                    = 0.495

Species B Observed allele frequencies: p=0.55 q=0.45

Expected heterozygote frequencies: 2pq = 2(0.55)(0.45)

                                                                     = 0.495Fst

calculation: Fst is the proportion of genetic variation present among populations, and it is calculated by dividing the genetic variation between populations by the total genetic variation.

Fst = Fst = (Ht - Hs) / Ht

Species A: Fst = [0.495 − ((0.42 + 0.32) / 2)] / 0.495

                  Fst = 0.1767

Species B: Fst = [0.495 − ((0.50 + 0.48) / 2)] / 0.495

                 Fst = 0.0000

The Fst value is high in Species A and low in Species B. Species A shows a high Fst value (0.1767), which indicates a significant geographic population subdivision in this species. The low Fst value (0.0000) in Species B implies that there is little geographic population subdivision in this species.

The Fst statistic reveals the degree of genetic variation between populations. If Fst is high, it indicates significant geographic population subdivision, while if it is low, it indicates little geographic population subdivision. As a result, Species A has significant population divergence in comparison to Species B.

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Answer:

Regarding protein synthesis:

Explanation:

DNA is a molecule that contains the genetic information of an individual in a specific sequence of nitrogenous bases that are part of its structure. The process of transcription occurs in the cell nucleus and consists of the synthesis of a single-stranded mRNA molecule from one of the DNA strands.

The role of DNA in protein synthesis in the transcription of genetic information into mRNA.

Molecule of mRNA is that carries the sequence of nitrogenous bases that make up the genetic code, i.e., sequences of triplets or codons that encode the start of protein synthesis, the amount, type and order of amino acids of a protein, and the stop of synthesis.

The translation process —which occurs in the cytoplasm— is performed when the ribosomes read the genetic code and begins the union of amino acids into polypeptide chains. The role of mRNA in protein synthesis is then to drive the genetic code into the ribosome for translation.

False, Fossil remains of the pre-australopithecines are found throughout most of the Old World, from Africa to East Asia.

Fossil remains of the pre-australopithecines are primarily found in Africa, not throughout most of the Old World. These early hominins are believed to have originated in Africa and their fossil remains have been discovered primarily in regions such as Ethiopia, Kenya, Tanzania, and South Africa.

While some hominin fossils have been found in other parts of the Old World, such as Asia and Europe, the majority of pre-australopithecine fossils are concentrated in Africa.

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The question is -

Fossil remains of the pre-australopithecines are found throughout most of the Old World, from Africa to East Asia. True/False.

After gut absorption, glucose is transported to the liver where it is metabolized.

The liver converts glucose to glycogen in a process known as glycogenesis. When blood glucose levels are low, glycogenolysis occurs, and the liver releases glucose back into the bloodstream. The pancreas secretes insulin in response to an increase in blood glucose levels. Insulin helps glucose enter the body's cells, particularly muscle and liver cells, where it is utilized as an energy source.

Increased blood glucose levels stimulate the pancreas to produce insulin. Insulin then enters the bloodstream and stimulates the uptake of glucose from the blood by cells. Insulin also signals the liver and muscle cells to store glucose as glycogen. When the concentration of glucose in the bloodstream drops, glycogenolysis occurs, and the stored glycogen is converted to glucose. This is due to the action of enzymes glycogen phosphorylase and glycogen debranching enzyme. Overall, glucose is transported to the liver and is metabolized, and its levels are regulated by insulin and glucagon hormones.

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Answer:

A. Both begin with glycolysis

Correct on 2020 Engenuity

-They had it first so credit to them.

Answer:

a

Explanation:

Carbohydrates, proteins, and lipids are macronutrients that provide the body with energy and are essential for various biological processes.

Carbohydrates, proteins, and lipids are macronutrients that supply energy to the body and are required for a variety of biological functions.

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Answer:

Cereals give carbohydrates which provide energy.

Pulses give proteins which build our body.

Vegetables and fruits provide vitamins and minerals.

Answer:

Cereals give carbohydrates which provide energy.

Pulses give proteins which build our body.

Vegetables and fruits provide vitamins and minerals.

A vacuole is waste management because it helps the cell get rid of waste. The correct option is C.

A membrane-bound cell organelle known as a vacuole. Animal cells typically have tiny vacuoles that aid in the sequestration of waste. Vacuoles in plant cells aid in preserving the equilibrium of water.

Maintaining cell acidity and turgor pressure, controlling the storage and movement of substances, regulating the transport and localization of crucial proteins.

These are done through the endocytic and lysosomal-vacuolar transport pathways, and responding to biotic and abiotic stresses are among the primary roles of vacuoles.

Thus, the correct option is C.

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With these features, Tiktaalik could best be described as a(n) transitional form or intermediate form between fish and tetrapods.

Transitional or intermediate forms are organisms that exhibit characteristics of both ancestral and derived groups. They are crucial in understanding the evolutionary relationships between different groups of organisms. Tiktaalik is an excellent example of a transitional form, as it exhibits a mixture of features seen in fish and tetrapods.

Tiktaalik possessed fish-like features such as gills, scales, and fins, but it also had tetrapod-like features such as a flat head with eyes on top, a neck, ribs, and a robust skeleton that could support its body weight. It also had four limbs with a wrist joint that could bend, which allowed it to prop itself up in shallow water and potentially move onto land.

Overall, Tiktaalik represents an important transitional form that helps us understand the evolutionary history of tetrapods and the adaptation of fish to life on land.

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