which two systems help deliver oxygen to cells in the human body?

Answer:

The goal of evolutionary classification

Explanation:

The goal of evolutionary classification is to group species into larger categories that reflect lines of evolutionary descent, rather than overall similarities. The goal of linnaean classification is to group species into larger categories based on physical characteristics

Answer:

A) Species X and Z

Explanation:

When comparing DNI sequences, you can see that the individuals with the most similar chains are X and Z. They only differ in the penultimate pair of bases.  Species X carries guanine-cytosine pair, while species Z carries the Timin-Adenine pair.

Species X:                      Species Z:

AACCGCGCGT              AACCGCGCTT

TTGGCGCGCA              TTGGCGCGAA

The other species differ a lot from each other.

Answer:

Only the single-celled organisms of the domains Bacteria and Archaea are classified as prokaryotes—pro means before and kary means nucleus.

Explanation:

Bending at the waist to either the left or right side is an example of the movement known as lateral flexion.

Flexion is a movement that decreases the angle between two body parts, while extension increases the angle. Abduction is a movement away from the midline of the body, while adduction is a movement towards the midline.
Lateral flexion involves bending the body to the side, such as when doing a side bend exercise or stretching the oblique muscles. It is important to maintain proper form and alignment when performing lateral flexion movements to avoid straining the back or neck muscles.Overall, understanding the different types of movements that occur in the body can help individuals perform exercises and activities safely and effectively.

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Bending at the waist to either the left or right side is an example of the movement called lateral flexion.

Lateral flexion occurs when you bend your waist sideways, allowing your trunk to move towards your hips. This movement engages the muscles around your spine and waist, providing stability and flexibility.
A. Flexion refers to the bending movement that decreases the angle between two body parts, such as bending your elbow.
B. Extension is the opposite of flexion; it's the movement that increases the angle between two body parts, such as straightening your elbow.
C. Abduction is the movement of a body part away from the midline of the body, like lifting your arm out to the side.
D. Adduction is the opposite of abduction; it's the movement of a body part towards the midline of the body, like bringing your arm down to your side after abduction.

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Answer:

1.B.

2.C.

3.A.

4.D.

5.B or A

Answer:

there would be more food for the foxes so their population would increase

So it's the first one

Answer:

It's a complex ... This means that when we eat the meat from the cow, we're at the tertiary level or higher. The loss of energy between trophic levels may also be even higher.Recent ... The organisms that eat the producers are the primary consumers.

Explanation:

Answer:

B because the environment wants those plants/animals to be in their environment so they need to adapt and change to bring in those things they need.

Explanation:

Pedigree studies are used to determine the inheritance patterns of genetic traits in families.

In a pedigree analysis, individuals are represented by symbols and the relationships between them are shown. To assign each person a genotype in a pedigree study, you need to consider the pattern of inheritance of the trait in question and the genotypes of the parents. If the trait is dominant, it can be represented by a capital letter (e.g. A), while if it is recessive, it can be represented by a lowercase letter (e.g. a). For X-linked traits, which are carried on the X chromosome, the genotype is typically represented as XA and Xa for females, and Y for males. XA represents an individual who is heterozygous for the X-linked gene, carrying one dominant allele and one recessive allele. Xa represents an individual who is homozygous for the recessive allele. Y represents an individual who does not have a second X chromosome, as males only have one X chromosome.

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If the greenhouse is sealed from the outside atmosphere, this isolated system would differ from the carbon cycle of the outside world as follows:

A greenhouse gas is a gas that both absorbs and emits heat and infrared radiation, producing the greenhouse effect.

Water vapor, carbon dioxide, methane, nitrous oxide, and ozone are the main greenhouse gases in the atmosphere of Earth.

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Answer:

C. Refraction of P waves crossing the mantle-core boundary.

Explanation:

The P-wave shadow zone is largely the result of refraction of P waves crossing the mantle-core boundary.

Climate change has the tendency to make droughts more extreme by increasing the rate of evaporation from land surfaces.

Climate change refers to the unpredictability of climate away from what used to be considered normal.

Climate change is brought about by global warming, an increase in the annual global temperature of the globe.

Climate change has the tendency to make droughts more extreme in that increased temperature leads to an increase in the rate of evaporation from ground surfaces.

Droughts are caused by the absence of water, the drier a place is, the more the drought.

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Answer:

Increased Evaporation

Rain Instead Of Snowfall

Increased Snowmelt

Explanation: If all of the answers are correct, could you give me brainliest please?

The order of the heart's conducting system is: SA node, AV node, AV bundle, left and right bundles, and Purkinje cells.

The conducting system of the heart begins with the initiation of the heartbeat at the Sinoatrial (SA) node, which is located in the upper right atrium. From there, the electrical impulses travel to the Atrioventricular (AV) node, which is located in the lower part of the right atrium. The impulses are then passed to the Atrioventricular (AV) bundle, also known as the bundle of His, which is a group of specialized fibers located in the septum of the heart that divides the left and right ventricles.

From the AV bundle, the impulses are then transmitted to the left and right bundles, which are branches of the AV bundle that extend throughout the ventricles. Finally, the impulses are spread to the Purkinje cells, which are specialized cells located in the walls of the ventricles that rapidly transmit the electrical impulses to the rest of the ventricular muscle cells, causing them to contract and pump blood out of the heart.

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Levees are beneficial to human settlements by preventing rivers from flooding their banks as often. Thus, the correct option is A.

Levees may be characterized as a natural or synthetic barrier that precludes and obstructs the water from running where we don't want it to move.

Levees are constructed when water compels the depositions to the flank of a river. They function as a natural barricade and control floods.

Levees control the flow of water from proceeding into the regions where there is a human settlement. They dissuade the rivers from flooding cities in a hurricane or storm or any other natural calamity overflow.

Therefore, the correct option for this question is A.

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Explanation:

i hope you understand the explanation

If you have the genotype Ww, where W represents purple flowers and w represents white flowers, which one is the dominant trait?

Answer:

I think purple flowers.

Answer:

False

Explanation:

It overlaps with the lithosphere. Since some rocks produce water.

Answer:

False

Explanation:

Answer: DNA in the bacterial cell always in contact with the cytoplasm, and all eukaryotes have DNA located inside a nucleus

Explanation:that’s what I put on the test got 100/100

DNA in the bacterial cell always in contact with the cytoplasm, and all eukaryotes have DNA located inside a nucleus. Thus option A is correct.

DNA is the double helical structure, a carrier of genetic material present in a chromosome of nucleus; Bothe prokaryotic and eukaryotic cell contain DNA.

It is made up of nitrogenous base, deoxyribose sugar , and a phosphate group, there are four types of nitrogenous base which has been classified into purine and pyrimidine based on the structure.

Purine refers to adenine (A) and guanine (G) while a pyrimidine, refers to cytosine (C) and thymine (T), purine can pair with pyrimidine by forming different number of hydrogen bond.

DNA is a twisted helical structure form a right-handed helix, here Adenine can pair with Thymine by two hydrogen bond and Guanine can pair with Cytosine by three hydrogen bond.

Thus option A is correct.

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Answer:

Euglena is a photosynthetic euglenoid with at least 150 described species. The cells are cylindrical with a rounded anterior and tapered posterior.

hope that helps bby<3

Answer:

Euglena are characterized by an elongated cell (15–500 micrometres or 0.0006–0.02 inch) with one nucleus, numerous chlorophyll-containing chloroplasts a contractile vacuole (organelle that regulates the cytoplasm), an eyespot.

Answer:

B: Sugar

Explanation:

Answer:

Termites' species such as Macrotermes species have considerable influence on the physical, biological and chemical properties of the soil (regulation of soil structure, soil organic matter and nutrient cycling, soil aeration) and consequently water dynamics (improve absorption and storage of water in soil).

Termite activity is critical in the distribution of resources at the landscape scale. Termites reduce the inputs to the soil from other organisms by feeding on organic litter and SOM in areas surrounding colony centers.

Termites are small insects that live in colonies, have distinct castes, and feed on wood or other dead plant matter.

They can be found on all continents except Antarctica. Termites belong to the infraorder Isoptera, or the epifamily Termitoidae of the order Blattodea.

Termites do not directly harm humans in the same way that rodents, mosquitoes, and bees do.

However, the damage caused by termites to properties can harm your finances, increase your stress levels, and potentially make structures unsafe to occupy.

Termite behavior is extremely crucial in resource availability at the landscape scale.

Termites start reducing other organisms' inputs to the soil by feeding on organic litter and SOM in areas near colony centers.

Thus, this way termite activities influence the cycling of matter in ways that are beneficial to there ecosystem.

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Answer:

Photosynthesis

Explanation:

Plants use a process called photosynthesis to make food. During photosynthesis, plants trap light energy with their leaves. Plants use the energy of the sun to change water and carbon dioxide into a sugar called glucose. Glucose is used by plants for energy and to make other substances like cellulose and starch.

Answer:

\(\boxed {\boxed {\sf Glucose}}\)

Explanation:

Plants (plus some bacteria and algae) are autotrophs and undergo a process called photosynthesis.

They obtain light energy from the sun and capture it using a green pigment called chlorophyll, water from the soil is drawn up through the roots with capillary action, and carbon dioxide diffuses into stoma on leaves.

Then, in the chloroplast, these substances are turned into oxygen and glucose. Both of these are used in cellular respiration, which creates energy for the plant to grow and carry out cellular and biological functions. Therefore, glucose is often called "food" for the plant.

Evidence from fossils, glaciers, and complementary coastlines

In standard anatomical position, the trochlea on the humerus is positioned laterally, whereas the capitulum is positioned medially.

The given statement is False.

At the anterior and distal ends of the humerus, respectively, are two smooth, rounded surfaces that resemble knuckles. Surrounding these objects, the elbow flexes and extends.

The medial epicondyle and capitulum of the trochlea are situated on opposite sides of the same bone. Both the coronoid fossa and the olecranon fossa are directly inferior to it on both sides.

The trochlea, a region with a pulley- or spindle-like form that articulates with the ulna bone, is the more medial of these areas. The capitulum, a knob-like feature found on the anterior surface of the distal humerus, is placed directly lateral to the trochlea.

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Embryonic development is a complex process that is defined by many factors. But in general, we can say that it is affected by 2 important sources of change: genes and the environment. Genes hold the necessary information that will dictate how the embryo will develop and the characteristics it will have. However, the environment will define which genes will be expressed and carry out their function and which genes will be "dormant or silenced" and have no effect on the development of the embryo. Therefore, both are equally important, since on the one hand, if the genes did not exist, the embryo would not have the necessary information to develop. Meanwhile, on the other hand, if the cells did not respond to the inhibitory stimuli of the environment, for example, they would multiply unceasingly leading to the malformation or death of the embryo.