In 1927, a little-known Belgian priest named Georges Lemaître was the first to propose an expanding universe, based on Einstein’s theory of general relativity. Two years later, Edwin Hubble published a scatterplot of recessional velocity vs. galactic distance, shown above in the Velocity-Distance Relationship among Extra-Galactic Nebulae. This was the first observational evidence to support the hypothesis that grew into the Big Bang theory.

Describe how the evidence you have gathered in this Gizmo demonstrates that the universe is expanding and helps to confirm the Big Bang theory.

Answer:

Bacteria and Archaea

Explanation:

Answer:

Single-celled organisms belonging to the Bacteria and Archaea domains are known as prokaryotes. Prokaryotic cells are smaller than eukaryotic cells and lack a nucleus and organelles. A cell wall surrounds all prokaryotic cells. Many of them also feature a polysaccharide capsule or slime layer.

Answer:

D. Temperature

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Answer:

Because you know when the magma falls down as lava

Explanation:

When the lava grows it boils the rocks createing a burn of magma

Answer:I think it’s c

Explanation:

Answer:

The answer are given above in attachment.

Some species use both mitosis and meiosis, others only use mitosis since they must use both to produce animal gametes.

Animals divide their sex and non-sex cells through meiosis, while plants divide their sex and non-sex cells through both mitosis and meiosis. The non-sex cells, such as skin, muscle, and blood cells, are divided through mitosis in humans and all other animal species. This is the case because these cells need to be retrieved quickly because they decrease quickly. Sex cells, including male and female gametes, are haploid and divide via meiosis. Cell division during mitosis and meiosis are both necessary for gamete production in plants. If they are to produce plant (or animal) gametes, they must have both sides.

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Answer:

Known as the “powerhouses of the cell,” mitochondria produce the energy necessary for the cell's survival and functioning.Mitochondria  break down glucose into an energy molecule.

Answer:They convert energy stored in organic compounds into a usuable form.

Answer:

Satellites send signals directly to Earth and for certain uses being agriculture, forestry, global warming predictions, oil and gas monitoring and disaster relief.

Answer:

The EIA forecasts that US oil petroleum and liquids consumption will increase from approximately 16 million barrels per day in 2020 to 19 million barrels per day in 2050, while at the same time natural gas consumption will increase from 84 billion cubic feet per day to 97 billion cubic feet per day.

Explanation:

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The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.

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According to the problem, after many generations, green anoles were observed to have larger and stickier toe pads than earlier generations and within the same trees, green anoles now occupy the higher branches. Note that the thinnest branches are generally the highest on the tree. This means that adaptations of the green anoles allow them to cling to thinner branches than they previously could cling to.

we can conclude that the correct answer is:

A) adaptations of the green anoles allow it to cling to thinner branches than they previously could cling to.

Answer:

C. Tree

Explanation:

Biotic factors are living organisms that shape their environment.

The scientific foundation of human development is based on the study of developmental psychology, which is the scientific discipline that studies how and why human beings change and grow throughout their life.

This field of study looks at the various stages of human development, including infancy, childhood, adolescence, adulthood, and old age, and examines the physical, cognitive, emotional, and social changes that occur during each stage. The study of human development is interdisciplinary, drawing on concepts and theories from biology, sociology, anthropology, neuroscience, and other related fields. It aims to provide a comprehensive understanding of the complex and dynamic nature of human development, and to inform interventions and policies aimed at promoting optimal development and well-being across the lifespan.

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Answer: B. Neither team had an easy time hiking; the Valley team's cells needed more glucose from broken-down starch for a reaction, and the Mountain team's cells needed more oxygen from air.

Explanation:

Before the hiking by the scientists, we are told that the Valley team ate a lunch of mostly protein while the Mountain team ate a lunch of a mix of starch and protein, but hiked at high altitude, where there is much less oxygen.

Based on the above, none of them had an easier time hiking. This is because since the cells of the Valley team who mostly ate protein, need glucose in order for a reaction to occur. For the Mountain team, even though they are a mixture of starch and protein, they went higher which reduced where there was less oxygen. This will have resulted in a hard time for them.

Therefore, neither had a easy time hiking. The correct option is B.

Answer:

All arthropods have an exoskeleton.

Explanation:

Answer:

Exoskeletons made of chitin. Highly developed sense organs. Jointed limbs (the limbs must be jointed like the joints in a suit of armor, since the exoskeleton is rigid and cannot bend to allow movement)

Answer:

b

Explanation:

.......................

Answer:

The pollen tube eventually reaches the egg in a flowering plant by passing through the stigma, style, ovary, and ovule.

Explanation:

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1. D) Ecosystem

2. C) Ecology

3. D) Food Chain

4. A) Aquarium

5. C) Terrarium

6. D) Photosynthesis

7. B) chlorophyll

8. A) Nitrogen Cycle

9. C) Germination

10. C) Food Web

11. B) Aquatic

12. C) Consumer

13. B) Herbivore

14. C) Carnivore

15. A) Omnivore

16. B) False

17. D) Primary producer of energy

18. C) chloroplasts

19. D) old

20. B) decomposers (bacteria, fungus)

1. An ecosystem refers to a system formed by the interaction of a community of organisms with their environment, encompassing both living (biotic) and non-living (abiotic) components. It includes various organisms, their habitats, and the flow of energy and nutrients within the system.

2. Ecology is the branch of biology that focuses on the study of the relationships and interactions between organisms and their environment. It explores the interconnections between organisms, their physical surroundings, and the influence of factors such as climate, resources, and human activities.

3. A food chain is a series of organisms that are interrelated in their feeding habits, with each organism being consumed by the next in the chain. It represents the transfer of energy and nutrients from one organism to another in a linear sequence.

4. An aquarium is a glass-sided tank or bowl designed for the housing and display of aquatic animals. It provides a controlled aquatic environment for the organisms to live and thrive.

5. A terrarium is a glass container, primarily enclosed, used for growing and displaying plants. It provides a controlled environment for plants to grow, usually with a lid to create a mini-ecosystem.

6. Photosynthesis is the process by which plants, algae, and some bacteria convert light energy from the sun into chemical energy in the form of glucose. It involves the absorption of sunlight, carbon dioxide uptake, and the release of oxygen.

7. The green color of plants is primarily attributed to chlorophyll, a pigment found in chloroplasts. Chlorophyll plays a crucial role in capturing light energy during photosynthesis, which is essential for the production of carbohydrates in plants.

8. The nitrogen cycle is a continuous sequence of natural processes by which nitrogen in the atmosphere and nitrogenous compounds in the soil are converted and transformed. It involves nitrogen fixation, nitrification, assimilation, ammonification, and denitrification, ensuring the availability and recycling of nitrogen in ecosystems.

9. Germination refers to the process in which a seed begins to sprout and develop into a new plant. It involves the absorption of water, activation of enzymes, and the emergence of a young shoot or root from the seed.

10. A food web represents the interrelated food chains within an ecological community. It illustrates the complex network of feeding relationships, showcasing the flow of energy and the transfer of nutrients between organisms in an ecosystem.

11. Animals and plants that live in water are referred to as aquatic. The term describes their habitat, which can include freshwater bodies like rivers and lakes, as well as marine environments such as oceans and seas.

12. A consumer is a person or thing that consumes or eats. In the ecological context, it refers to an organism that obtains energy and nutrients by consuming other organisms.

13. A herbivore is an animal that exclusively eats plants as its primary source of nutrition. It has adapted physiological and anatomical features to digest plant material effectively.

14. A carnivore is an animal that solely consumes other animals as its primary food source. It possesses specific

15. An omnivore is an animal that has a diet consisting of both plant matter and animal tissue. It has the ability to consume and digest a variety of food sources, including both plants and animals.

16. False. Humans are not classified as carnivores. They are considered omnivores because their diet can include both plant-based foods and animal-based foods.

17. The Sun is considered the primary producer of energy. Through the process of photosynthesis, plants and other photosynthetic organisms capture sunlight and convert it into chemical energy, which fuels the entire food chain.

18. The green color of plants is produced from organelles called chloroplasts. Chloroplasts contain the pigment chlorophyll, which absorbs sunlight and plays a vital role in photosynthesis, allowing plants to convert light energy into chemical energy.

19. Consumers in an ecosystem serve a crucial role for a species by consuming animals that are either too weak or too old. They help regulate population sizes and maintain the overall balance and health of the ecosystem.

20. Decomposers, such as bacteria and fungi, play a vital role in returning or recycling the primary chemical compounds of organisms back into the food chain. They break down dead organic matter and waste materials, releasing essential nutrients and completing the nutrient cycle.

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1. A system formed by the interaction of a community of organisms with its environment is called ecosystem.

2. The branch of Biology dealing with the relations and interactions between orgainisms and their environment is called Ecology.

3. A series of organisms interrelated in their feeding habits, the smallest being fed upon by a larger one is called Food Chain.

4. A glass-sided tank, bowl in which aquatic animals live is called Aquarium.

5. A glass container chiefly enclosed for growing and displaying plants is called Terrarium.

6. The process in which plants make their food is called Photosynthesis.

7. The green color of the plant is called chlorophyll.

8. The continuous sequence of natural processes by which nitrogen in the atmosphere and nitrogenous compounds in the soil are converted is called the Nitrogen Cycle.

9. When a seed begins to grow and develop is called Germination.

10. The interrelated food chains in an ecological community is called Food Web.

11. Animals and plants that live in water are called Aquatic.

12. A person or thing that eats is called Consumer.

13. An animal that only eats plants is called a Herbivore.

14. An animal that only eats other animals is called a Carnivore.

15. An animal that eats both plants and animals is called an Omnivore.

16. Humans are Omnivore.

17. The Sun is a Primary producer of energy.

18. The green color of plants is produced from organelles called chloroplasts.

19. Consumers in an ecosystem serve a 'healthy' role for a species by consuming animals that are either too weak or too old.

20. Along a food chain, the role of decomposers (bacteria, fungus) is to help return or recycle the primary chemical compounds of organisms back to the chain:

An ecosystem is an ecological system formed by an inseparable reciprocal relationship between living things and their environment. An ecosystem can also be said to be a complete and comprehensive unitary arrangement between all elements of the environment that influence each other.

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Technological development can enable new scientific discoveries describes the relationship between science and technology.

Technology advances when technologies or applied sciences become more accurate, precise, effective or efficient or capable. The development of science and technology has made many important changes.

Advanced technology is defined as a new or emerging IT innovation that still has relatively few users but promises to create significant future value. Although this term is distinct from both advanced manufacturing technology and manufacturing technology, they are related.

By 2022, multi-core will be everywhere, from mobile phones and smartphones to cameras, games, cars, cloud servers and advanced supercomputers. Silicon photonics is the core technology to address  bandwidth.

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Hypotonic sports drinks are concerned because they have a lower concentration of solutes compared to the body's cells, which can lead to water entering the cells and potentially causing harm. The cells most likely to be harmed by a hypotonic solution are red blood cells.

Hypotonic sports drinks are formulated with a lower concentration of solutes, such as electrolytes and carbohydrates, compared to the body's cells. When consumed, these drinks can create a situation where the concentration of solutes in the drink is lower than the concentration inside the cells. As a result, water tends to move from an area of lower solute concentration (the sports drink) to an area of higher solute concentration (the cells). This can lead to an influx of water into the cells.

Among the various cells in the body, red blood cells are particularly susceptible to harm from a hypotonic solution. Red blood cells have a delicate balance of water and solutes that is crucial for their proper functioning. When exposed to a hypotonic solution, water enters the red blood cells, causing them to swell and potentially burst. This process is known as hemolysis. Red blood cell hemolysis can disrupt the oxygen-carrying capacity of the blood and lead to various complications. Therefore, it is important to ensure that sports drinks maintain an appropriate concentration of solutes to avoid harm to the body's cells, particularly red blood cells.

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Answer:

Subscripts: Part of the chemical formulas of the reactants and products that indicate the number of atoms of the preceding element. Coefficient: A small whole number that appears in front of a formula in a balanced chemical equation.

The cell membrane is selectively permeable because substances do not pass through it indiscriminately. This means that only selective molecules pass through it. So the correct answer choice is option (B).

Selective permeability of a cell membrane refers to its ability to distinguish between different types of molecules, allowing only some molecules through while blocking others. A cell membrane is called selectively permeable because it allows only specific molecules to pass through. Only specific molecules, such as water and gas molecules, can pass directly through the cell membrane. It stops the flow of other molecules towards the two sides. Many large molecules like glucose and other sugars cannot do this. Water can pass between lipids. The most common example is the phospholipid bilayer cell membrane that surrounds every cell in our body.

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Complete question:

The membrane structure is selectively permeable, for this reason:

A) It is permeable only during certain stage of the cell division.

B) It allows only selective molecules to pass through it.

C) It allows only water to pass.

D) It is made up of lipids.

The total protein concentration in the original crude extract is 0.1 mg.ml-1.

To calculate the total protein concentration in the original crude extract, we need to consider the dilution factor and the amount of protein in the diluted crude extract.

Calculate the amount of protein in the original crude extract.

We are given that 132 µl of the diluted crude extract contains 18 µg of protein. Since the crude extract was diluted 6-fold, we can multiply the protein amount by the dilution factor to find the protein content in the original crude extract:

18 µg × 6 = 108 µg

Convert the protein amount to mg.

To express the concentration in mg.ml-1, we need to convert the protein amount from µg to mg. Since 1 mg = 1000 µg, we divide the protein amount by 1000:

108 µg ÷ 1000 = 0.108 mg

Calculate the total protein concentration.

The total protein concentration is calculated by dividing the protein amount by the volume of the original crude extract. The volume is not explicitly given in the question, but since the diluted crude extract was 6-fold, we can assume that the original crude extract had a volume of 132 µl × 6 = 792 µl.

Converting this volume to ml: 792 µl ÷ 1000 = 0.792 ml

Finally, we can calculate the total protein concentration:

0.108 mg ÷ 0.792 ml = 0.136 mg.ml-1

Therefore, the total protein concentration in the original crude extract is 0.1 mg.ml-1.

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The genetic cross between MM and mm would represent a cross between homozygous dominant and homozygous recessive parents for a specific trait. In this case, M represents the dominant allele, while m represents the recessive allele.

Each parent donates one allele to their offspring, resulting in four possible offspring genotypes: Mm, Mm, Mm, and Mm. All of the offspring would have a heterozygous genotype, meaning they would carry one dominant and one recessive allele. Thus, all the offspring would have the same phenotype, which would reflect the dominant trait determined by the M allele. In this case, the possible phenotype would be the same as the parent with the dominant allele, which is MM.

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Answer:

a plant cell has a rigid cell wall however an animal cell does not. (more info below)

Explanation:

Because a plant cells are surrounded by the rigid cell wall, it cannot use microfilaments to go through cytokinesis. Instead, it builds a cell plate in the middle of the cell to represent the division. An animal cell does not have this rigid structure, so it forms a cleavage furrow by pinching the cell in the middle with microfilaments. This will successfully divide the cell into two.

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Answer:

Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes.  In animal cells, the plasma membrane of the parent cell pinches inward along the cell's equator until two daughter cells form.  In plant cells, a cell plate forms along the equator of the parent cell.

Explanation:

Answer:

bioata:

Explanation:

a specim of life in a specific area, rime period, or habitat

The Green World Hypothesis proposes that the origin of life was influenced by the environment, whereas the Bottom-Up Explanation proposes that life originated from molecules.

Environment is the sum total of all the physical and biological components that constitute the natural world, including air, water, land, plants and animals, and the relationships between them. It includes both living and non-living elements and the complex interactions between them. It also includes the social, economic and cultural interactions between humans and their environment. It is the environment that provides us with the resources we need to survive and thrive, and it is our responsibility to protect and conserve it. Environmental protection involves preserving and restoring natural resources, reducing pollution and waste, and promoting sustainable development.

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Hyperviscosity will result in the decrease in blood flow which will increase the blood pressure in the individual.

This is referred to as the central organ of the circulatory system and is responsible for the pumping of blood and other types of substances to different parts of the body.

When the blood is hyperviscous, the blood becomes thicker and the heart requires more force to pump the blood to other parts of he body which therefore leads to an increase in the blood pressure of the affected individual.

This is why symptoms such as seizures, coma, or bleeding from their mucous membranes are experienced thereby making it the correct choice.

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Answer:

The salamander is an amphibian, so it has metamorphis as it grows and develops. The adult form is different from the larva because the adult​ breathes through lungs.

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Answer:

The options are not given, here are the options  for drop down.

Question 1 options-A) metamorphosis B) pupae stage C)simple life cycle

Question 2 options- A)breathes through lungs B) forms a pupa C) lives completely underwater

The correct answers are A A- Metamorphosis; breathes through lungs

As an amphibian, the salamander undergoes metamorphosis as it grows and develops. The adult is distinguished from the larva by the fact that it breathes through its lungs.

Explanation:

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Answer:

Subsequently, question is, what are three ways that the function of a root is helped by its structure? A root's four major functions are 1) absorption of water and inorganic nutrients, 2) anchoring of the plant body to the ground, and supporting it, 3) storage of food and nutrients, 4) trans locating water and minerals to the stem.

Explanation:

In addition to absorbing water and nutrients, they also anchor and support the plant and store food.

Roots are defined as a vascular plant's subterranean portion. Water and essential minerals are taken up by a plant's roots from the earth and sent to the stem. The plant's roots firmly anchor it to the earth.  They first give a plant the anchor it needs to stay put. More significantly, a plant's roots are its life support system because they transport nutrients, water, and air up into the leaves.

The root hairs have a vast surface area, making them ideal for absorbing water from the soil. The absorption increases as surface area increases. There is a semi-permeable barrier on each root hair. Anchoring the plant, absorbing water and dissolving nutrients, transferring them to the shoot, storing nutrients, vegetative reproduction, and binding soil particles are just a few of the crucial roles that roots play in plants.

Thus, in addition to absorbing water and nutrients, they also anchor and support the plant and store food.

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