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Science

The observation, identification, description, experimental investigation, and theoretical explanation of phenomena is all part of science. Nothing is immune to the scientific process: from charm quarks that haven't existed naturally since the beginning of time to Pluto, recently demoted from planet to dwarf planet. Questions on knowledge about the material and physical aspects of our world are asked and answered here.

203,801 Questions

This is one important way that plant cells differ from animal cells?

One important way that plant cells differ from animal cells is the presence of a cell wall in plant cells, which provides structure and support. Additionally, plant cells contain chloroplasts for photosynthesis, while animal cells do not. Plant cells also often have a large central vacuole for storage of water and nutrients, which is typically smaller or absent in animal cells.

What are cila?

There is no widely recognized term or concept known as "cila" in English. It may be a misspelling or typo, or it could be specific to a certain context that I am not aware of. If you can provide more information or context, I may be able to give a more accurate response.

Why are bacteria considered recyclers in the environment?

Bacteria are considered recyclers in the environment because they play a crucial role in breaking down organic matter such as dead plants and animals, releasing nutrients back into the ecosystem. This process, known as decomposition, helps to recycle nutrients like carbon, nitrogen, and phosphorus, making them available for other organisms to use.

What is the amount of surface called?

The amount of surface exposed is called surface area. It is the measurement of the total area that the surface of an object occupies.

What are the phases of cellular respiration?

Cellular respiration is typically divided into three main phases: glycolysis, the citric acid cycle (or Krebs cycle), and oxidative phosphorylation (electron transport chain and chemiosmosis). In glycolysis, glucose is broken down into pyruvate. The citric acid cycle completes the breakdown of glucose to carbon dioxide. Oxidative phosphorylation generates ATP using the energy released from electron transport chain reactions.

Is fluorite intrusive or extrusive?

Fluorite is an extrusive rock, meaning it forms from the solidification of magma on the Earth's surface. It typically occurs in volcanic environments and is associated with lava flows and volcanic rocks.

Is the weather for a region static or dynamic?

Weather for a region is dynamic, as it is constantly changing due to various factors such as temperature, humidity, wind patterns, and air pressure. These factors interact to create different weather conditions over time.

What 2 things does DNA do?

DNA contains the genetic information that determines an organism's physical characteristics, such as eye color and height. It also serves as instructions for building and maintaining an organism's cells and tissues.

What is the name of water that flows in streams and river into the ocean and lakes?

The water that flows in streams and rivers into the ocean and lakes is called runoff or freshwater.

In what parts of the world are raindrops commonly formed by the process of Coalescence?

Raindrops formed by coalescence are common in tropical regions where warm air and high humidity create ideal conditions for water vapor to condense and merge into larger droplets. These regions include parts of Southeast Asia, South America, and Africa.

Compare the differences between isopod and insects?

Isopods are crustaceans, while insects belong to the class Insecta. Isopods have seven pairs of legs and two pairs of antennae, while insects have six legs and one pair of antennae. Isopods are typically flattened and have a segmented body, while insects have a three-part body plan with a head, thorax, and abdomen.

In natural ecosystems the presence of predators lessens the effects of what among the prey?

The presence of predators in natural ecosystems lessens the effects of overpopulation among the prey species. Predators help regulate prey populations by controlling their numbers through predation, which in turn prevents the prey from depleting natural resources and disrupting ecosystem balance.

What kind of factors are directly responsible for the survival of a organism. They include water shelter space and food and can all run out if being used by too many individuals?

Factors such as water, shelter, space, and food are directly responsible for the survival of an organism. These resources can become limited if they are being used by too many individuals, potentially leading to competition for access and, ultimately, impacting the survival of the organisms. Maintaining a balance in resource availability is crucial for sustaining populations.

Occurs in the cytoplasm of animal cells during m-phase?

Mitosis occurs in the cytoplasm of animal cells during the M-phase of the cell cycle. This is when the cell divides its nucleus into two identical daughter nuclei. Mitosis is essential for growth, repair, and maintenance of multicellular organisms.

Which is the level of organization in the skeletal system?

The skeletal system is organized at the organ system level in the body. It consists of bones, cartilage, tendons, and ligaments that work together to support the body, protect internal organs, and facilitate movement.

How does the moon travels in the sky eastward or westward Justify your answer?

From the point of view of someone standing on the surface of the Earth, the Moon rises in the east and sets in the west, just like the Sun. So it appears to be moving from east to west. In fact, however, the Earth is rotating from west to east "under" the Moon and Sun.

Are hydra autotrophic or heterotrophic?

Hydra are heterotrophic organisms, meaning they obtain their energy and nutrients by consuming other organisms. They are carnivorous and primarily feed on small aquatic invertebrates like water fleas and tiny worms.

Are actinosphaerium a hetero or autotroph?

Actinosphaerium is a heterotroph. It feeds on small microorganisms such as bacteria and other protists by engulfing them using its pseudopods.

Are Actinosphaerium autotrophic or hetero-tropic?

Actinosphaerium are heterotrophic organisms, meaning they obtain nutrients by consuming other organisms. They are filter feeders, using their pseudopodia to capture and engulf their prey, which mainly consists of bacteria and other small organisms.

Describe the patterns of global water use for each continent shown in the bar graph?

North America and Europe have the highest per capita water usage, while Asia and Africa have the lowest. South America falls in the middle. This distribution likely reflects differences in population density, level of industrial development, and available water resources across the continents.

What are the 3 methods used for developing organisms with desirable traits?

The three methods commonly used for developing organisms with desirable traits are selective breeding, genetic engineering, and hybridization. Selective breeding involves selecting and breeding organisms with specific traits over generations. Genetic engineering involves directly manipulating an organism's genome to introduce new traits. Hybridization involves crossing two different species or varieties to combine desirable traits from both.

The diameter of Earth is 1.3 x 104 km. What is the diameter expressed in decimeters?

To convert kilometers to decimeters, you need to multiply by 10. So, 1.3 x 10^4 km would be 1.3 x 10^5 decimeters. This means the diameter of Earth is 1.3 x 10^5 decimeters.