Identifying the Functions of the Structures of the Circulatory
System
Identify the function of the labeled structures.
A
B
C
D
connects arteries and veins
brings blood back to the heart
carries blood away from the heart
pushes blood into the arteries

Answer:

nonfoliated texture

Explanation:

Answer:

1,2,4

Explanation:

The possible sources of error include: not cleaning the beakers properly, reusing droppers for different solutions, and not cleaning the outside tubing after filling with starch.

Semi-permeable membranes are materials which are selectively permeable to some substances but not others.

Starch molecules are large and do not pass through semi-permeable membranes.

The source of errors could be due to:

Therefore, Semi-permeable membranes are selectively permeable to some substances such as one but not larger molecules such as starch.

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According to the question, Changes in gene sequences generally occur when one species evolves into another species.

A group of similar living things that ranks below the genus in scientific classification and is made up of individuals able to produce offspring with one another.

Thus, option "C" is correct.

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The usefulness of the scientist's comparison is that mutations can act as a molecular clock showing when species had a common ancestor. These differences or similarities in gene sequences can indicate how closely related certain species are, and when they diverged from a common ancestor.

The scientist in this scenario is using gene sequences to determine the evolutionary history of the species. This method is reasonable, as A. mutations can act as a molecular clock that show when species had a common ancestor. Mutations accumulate in the genome over time and can be used as a 'clock' to identify when species diverged from a common ancestor, making it possible for scientists to use these sequences to track evolution and derive the relationships between species. If two species have significantly different gene sequences, it indicates that they diverged from their common ancestor a long time ago or evolved at different rates. On the other hand, if two species have very similar gene sequences, it suggests a closer or more recent common ancestor.

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Answer:

A. Cells in meiosis have unique genetic information

Explanation:

The cells in meiosis differ from the cells in mitosis, cells in meiosis have unique genetic information that is in Option A, as the haploid meiotic cell has uniqueness due to cross-over and recombination.

These are the cells that undergo meiosis, a cell division that forms haploid cells and the significance of meiotic cells results from the exchange of genetic information between chromosomes, which creates genetic diversity among the resulting cells and is important for their survival, but errors in meiosis can also lead to the formation of cancer cells.

Hence, the cells in meiosis differ from the cells in mitosis, cells in meiosis have unique genetic information that is in Option A, as the haploid meiotic cell has uniqueness due to cross-over and recombination.

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Answer:

The primary difference between weathering and erosion is that weathering occurs in place whereas erosion involves movement to a new location. Both are caused by similar factors of wind, water, ice, temperature, and even biological action. They can also occur together.

Explanation:

Answer:

14a: aa

14b: Aa

14c: Albino

14d: normal

14e: 50%

114f: 50%

Explanation:

Answer:

Chitinous exoskeleton and segmented bodies​.

Explanation:

Phylum Arthropoda are known as jointed legs species which include crabs, spiders, ants, etc. The important characteristic of Arthropoda is they have a hard chitinous exoskeleton that provides them protection and gives flexibility. These phylum species can survive in both terrestrial and marine habitats. Some characteristics of phylum Arthropoda are given below:

1) They have Chitinous exoskeleton which is hardened.

2) Their digestive tract is present at opposite ends of the body and complete with the mouth and anus.

3) They contain jointed limbs.

4) The body structure of these species is showing bilateral symmetry.

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Answer:

D.the tilting of the Earth on its axis, and the Earth revolving around the Sun

Explanation:

The tilting of the Earth on its axis, and the Earth revolving around the Sun.

One of those natural occurrences that people take for granted is the change of seasons. People are aware that it occurs in most regions, but they don't always pause to consider the causes of the seasons.

The tilt of the Earth's axis with respect to its orbital plane is the primary cause of the seasons. Consider the solar system's orbital plane as a flat plate. On the "surface" of the plate, the majority of planets revolve around the Sun.

Most planets have their poles at an angle, rather than having their north and south poles point directly perpendicular to the plate.

Therefore, The tilting of the Earth on its axis, and the Earth revolving around the Sun.

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Answer:

Science is supported by facts and processes.

Science involves observation and experimentation.

Science continually changes and is constantly updated.

Answer:

They don't.

Explanation:

Potatoes reproduce sexually naturally via pollination by bees between potato plants. They also require seeds, the cells involved for sexual reproduction in plants.

Answer:

potatoes can also be grown asexually through vegetative reproduction, which a new plant grows from a fragment of the parent plant

Explanation:

Answer:

b. hot springs

Explanation:

Archaea bacteria are extremophiles living in harsh environments, such as hot springs and salt lakes, since they have been found in a broad range of habitats, including soils, oceans, marshlands and the human colon so they are ubiquitous.

Answer:

Temperature and precipitation

Explanation:

Biomes are characterized based on dominant vegetation types in regions with similar climatic conditions. Key factors in shaping biomes include temperature and precipitation. These conditions influence the composition of plant and animal communities, and the concept applies to both terrestrial and aquatic biomes.

The biome, a large-scale community of organisms, is primarily characterized based on the dominant plant types that exist in geographic regions with similar climatic conditions. The Earth showcases both terrestrial and aquatic biomes. The eight major terrestrial biomes include tropical wet forests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra.

Temperature and precipitation, and variations in both of these abiotic factors, are key in shaping the composition of animal and plant communities in these biomes. For instance, biomes like temperate grasslands and forests have distinct seasons, experiencing both cold and hot weather throughout the year. In contrast, biomes such as the desert and tundra have low primary productivity due to harsh temperatures and scarcity of water.

Different vegetation and animal life can exist in geographically distinct areas with similar climates due to these factors. Apart from terrestrial biomes, there are also the aquatic biomes which include both saltwater and freshwater ecosystems, with their structuring influenced by different abiotic factors such as sunlight, density, and temperature.

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Answer:

Silica

Explanation:

A unique feature of diatom anatomy is that they are surrounded by a cell wall made of silica (hydrated silicon dioxide), called a frustule

Hope this helps!

Answer:

A diatom has a cell wall made of silica.

Explanation:

Diatoms are eukaryotic phytoplankton cells known for their silica-containing cell walls (frustales), and are responsible for approximately 20% of total primary productivity globally. Diatom silica is a form of biogenic opal, containing oxygen isotopes and can be used in lacustrine and marine paleoenvironmental studies.

Answer:

Glow in the dark puppies

Cows: scientists genetically engineered cows to produce milk similar to human milk.

Salmon: genetically engineered to reach market size in eight montsh

Explanation:

Answer:

A

Explanation:

had a quiz on this like 2 years ago...

Answer:

Overpopulate

Explanation

Because they would interact with each other positively.

Answer: inversion

Explanation:

trust me bro

Answer:

Analogous structures

Explanation:

Homologous structures are the one that may look alike by appearance but may not serve the same purpose.  

While analogous structures may look different from each other but have similar function.  

The purpose of having a keyboard is same in case of a typewriter, a laptop, and a smartphone though they look different from each other. Thus, they can be considered as analogous structure.  

Answer:

Grange S. Coffin

Explanation:

He discovered it in the year 1923

Answer:

Coffin–Lowry was first described by Grange S. Coffin (b. 1923) in 1966 and independently by Robert Brian Lowry (b. 1932) in 1971. Dr. Temtamy showed that the cases represented a single syndrome in 1975.

Explanation:

Answer:

No

Explanation:

Plants produce fruit so that

animals will eat it, digest it, and spread the plant's seeds away

from the parent plant.

The interaction between Sclerenchyma and vascular tissue provides cells throughout the plant with glucose. So, the correct option is B.

Vascular tissues may be defined as the specialized tissue of higher plants consisting essentially of phloem and xylem.

Vascular tissue mediates the transport of minerals and nutrients from the soil to the whole plant via roots. While Sclerenchyma and vascular tissue combined helps in the translocation of glucose throughout the plant.

Therefore, the interaction between Sclerenchyma and vascular tissue provides cells throughout the plant with glucose.

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Final answer:

The correct interaction providing cells with glucose is between vascular tissue and leaves, where leaves produce glucose through photosynthesis and phloem in the vascular tissue transports it throughout the plant.

Explanation:

The interaction between the vascular tissue and the leaves of a plant is primarily responsible for providing glucose to cells throughout the plant. During photosynthesis, leaves use sunlight and water to create glucose and oxygen. The glucose is then transported throughout the plant from the leaves to other tissues via the phloem, which is one of the two main components of vascular tissue.

The xylem and phloem are closely associated within the vascular tissue, where xylem is primarily responsible for the transport of water and minerals from the roots to the leaves, and phloem is responsible for the distribution of sugars and other metabolic products from the leaves to the rest of the plant. Therefore, the correct answer to the question is 'D) Vascular tissue and leaves'.

Answer: B

Explanation:

Pharyngeal slits are filter-feeding organs found among deuterostomes. Pharyngeal slits are repeated openings that appear along the pharynx caudal to the mouth.

An autonomous car is a vehicle capable of sensing its environment and operating without human involvement. A human passenger is not required to take control of the vehicle at any time, nor is a human passenger required to be present in the vehicle at all. An autonomous car can go anywhere a traditional car goes and do everything that an experienced human driver does.

Answer:

D

Explanation:

Bacteria are different from viruses, as bacteria are living organisms. The correct option is A.

Bacteria are living organisms that are prokaryotic and can withstand extreme conditions and temperatures on the earth. They are good and bad, they help in many processes and can also act as pathogens and increase diseases.

Viruses are microscopic infection agents that are non-living, and they get life by getting into a host. They are pathogens, and they cause infections in plants and animals.

The main difference between bacteria and virus is that bacteria are living organisms and viruses are not, a virus can infect a bacterium, and it is called a bacteriophage.

Thus, the correct option is A. Bacteria are living organisms.

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Answer:

no diagram was made available miss

Answer:

you don't have a diagram here please endeavour to so.

Answer:

pH

Explanation:

Amino acids join together to form proteins, which are crucial for nearly all biological functions. They also sometimes contribute to the formation of neurotransmitters and some hormones.

Amino acids are essential building blocks that combine to form larger molecules known as proteins. In certain conditions, they also play a part in the creation of a few other types of molecules, such as neurotransmitters and some hormones. However, their primary role is in protein synthesis. Proteins are incredibly complex and important, serving multiple functions such as catalyzing reactions, communication, transport within cells, and structure support in tissues.

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