Answer: These changing quantities are called variables. A variable is any factor, trait, or condition that can exist in differing amounts or types. An experiment usually has three kinds of variables: independent, dependent, and controlled. The independent variable is the one that is changed by the scientist.
Explanation:
What is an observation. Answer as a kid/ brief explanation. I'll give brainliest
This is Science Btw
Answer:
1) the action or process of observing something or someone carefully or in order to gain information.
2) a remark, statement, or comment based on something one has seen, heard, or noticed.
3) the ability to notice things, especially significant details.
4) the taking of the altitude of the sun or another celestial body for navigational purposes.
if this is correct please give me Brainliest.
Which characteristics must an object possess in order to be considered allve?
Explanation:
There are 7 key characteristics of living organisms, namely,
-Order (Cellular Organization)
-Response to external stimulus (Sensivity)
-Reproduction
-Growth and development
-Adaptation through Evolution
-Homeostasis
-Energy process (Metabolism)
What is the function of a cell in relation with the human body?
Answer:
cell is very important for the human body, as it is, the functional structure of our body which help us to survive in the whole world.
Explanation:
The human body is composed of trillions of cells. They provide structure for the body, take in nutrients from food, convert those nutrients into energy, and carry out specialized functions. Cells also contain the body's hereditary material and can make copies of themselves.
What happens when the collecting duct gets blocked?
isn't coming income so that
How do plant and animal breeders
use the process of artificial
selection to increase productivity
in their crops and herds?
A. The breeders choose organisms with the most
desirable traits and breed them.
B. The environment selects the traits that are
passed on, and the breeders have no control over
it.
C. Artificial selection is a theory and does not
work, so breeders do not use it.
A animals and plants have sources
I think
Selective breeding is the practice of pairing parents who share particular features in order to produce offspring who have a greater number of desirable traits.Thus, option A is correct.
What plant and animal breeders process artificial selection?Selective breeding is the practice of pairing parents who share particular features in order to produce offspring who have a greater number of desirable traits. Humans have carefully selected a wide range of plants and animals for thousands of years, including agricultural species with higher yields.
Instead of allowing the species evolve spontaneously without human involvement, as in natural selection, people chose animals or agricultural products based on desirable qualities, a practice known as "selective breeding,” or artificial selection.
Therefore, The breeders choose organisms with the most desirable traits and breed them.
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25 POINTS!! (See attachment below)
Water is a __________ molecule meaning that it has a slightly positive end and a slightly negative end?
Ribosomes carry out reactions of respiration in the cell. true or false?
Answer:
yes it is true ribosome carry out reaction of respiratory in the cell
YOU GUYS PLEASE IM BEGGING PLS HELP!
A fire moves through a grassland ecosystem. What would be the resulting event?
Answer: the grass would be burnt
Explanation:
Fire
The resulting event when a fire moves through a grassland ecosystem are Destruction of Vegetation, Loss of Habitat, Nutrient Release, Changes in Species Composition and Regeneration and Succession.
A biological system is a geographic region where plants, creatures, and different living beings, as well as climate and scene, cooperate to frame an air pocket of life. Environments contain biotic or living, parts, as well as abiotic factors, or nonliving parts.
The four environment types are characterizations known as counterfeit, earthly, lentic and lotic. Environments are portions of biomes, which are climatic frameworks of life and creatures. In the biome's biological systems, there are living and nonliving natural variables known as biotic and abiotic.
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In the early 1900s toxic substances such as ammonia (NH3) and sulfur dioxide (SO2) were used in
1
refrigerators as
Answer:
propellants
Explanation:
they were used to make aerosols sprays in aluminum spray cans
What direction is the water moving and is it hypertonic,hypotonic,or isotonic
Answer:
Hypotonic is the answer
While looking at a slide you observe an unknown crystal lying next to a red blood cell. The crystal is about 2.5 times the diameter of the red blood cell. What is the size of the crystal in um?
The size of the crystal lying next to the red blood cell is roughly 17.5 um (micrometers).
Red blood cells are the most numerous cells in the human body. They are often known as RBCs or are commonly called erythrocytes. They get their name from their bright red color, which they in turn get from a protein they contain called hemoglobin. This protein is responsible for carrying oxygen from the lungs to the various tissues of the body. Erythrocytes have a diameter that ranges from 6 to 8 micrometers.
In the question, it states that we observe an unknown crystal lying next to a red blood cell. Being unknown, we cannot directly know its size. However, the question offers context as to the size of the crystal by stating that it is 2.5 times the diameter of the red blood cell. Through this information, and with the diameter of the red blood cell ranging from 6 to 8 (7 on average), we can infer that the size of the crystal is roughly 17.5um.
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Which of Earth’s spheres includes its mantle, core, and crust?
Answer:
the geosphere
Explanation:
the geosphere is all about earths layers and the way they move and developed as well as the different rock types in a area
Which of the following does the house cat have in common with a human
Answer:
Both living
Explanation:
How does the field of science gain knowledge and understanding
O by using the latest technologies
O through the testing of hypotheses
O by making value judgments
O through deductive reasoning
Science gains knowledge and understanding through the testing of hypotheses.
A hypothesis is a given explanation of a particular phenomenon from the real world, which is tested (i.e., either verified or rejected) by using the scientific method.The scientific method is a methodology based on experimental and observational procedures that allow obtaining and interpreting empirical evidence.Subsequently, the evidence obtained from experimentation and/or observation is assessed in order to accept or reject the working hypothesis.Learn more in:
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Answer:
through the testing of hypothese.
Explanation:
What would happen if green plants were exposed to longer periods of sunlight
Answer:
Plants harvest energy from the sun with the help of chlorophyll and carotenoid, two photon-capturing molecules. But if the plants are exposed to too much sun, these molecules absorb more energy than they can handle and generate reactive species of oxygen that can destroy the plant.
Answer:
Plants harvest energy from the sun with the help of chlorophyll and carotenoid, two photon-capturing molecules. But if the plants are exposed to too much sun, these molecules absorb more energy than they can handle and generate reactive species of oxygen that can destroy the plant.
Explanation:
hope this helps
What set the stage for wind erosion in North America
Answer:
Wind erosion in the United States is most widespread on agricultural land in the Great Plains states. Wind erosion is also a serious problem on cultivated organic soils, sandy coastal areas, alluvial soils along river bottoms, and other areas in the United States.
Give an example of how cohesion
among water molecules is impor-
tant to living things.
Answer: Um, Cohesion enables the water molecules travel upwards from deh roots to the top of the leaves because of deh attraction.
Explain why chromosomes are important in inheritance ?
Explanation:
Discuss Sutton’s Chromosomal Theory of Inheritance
Describe genetic linkage
Explain the process of homologous recombination, or crossing over
Describe how chromosome maps are created
Calculate the distances between three genes on a chromosome using a three-point test cross
Long before chromosomes were visualized under a microscope, the father of modern genetics, Gregor Mendel, began studying heredity in 1843. With the improvement of microscopic techniques during the late 1800s, cell biologists could stain and visualize subcellular structures with dyes and observe their actions during cell division and meiosis. With each mitotic division, chromosomes replicated, condensed from an amorphous (no constant shape) nuclear mass into distinct X-shaped bodies (pairs of identical sister chromatids), and migrated to separate cellular poles.
How do the events and processes that occur during ecological succession change species diversity over time?
on: What does a cactus, house fly, and your grandmother have in common?
Answer:
They are all living organisms
Explanation:
A cactus, a house fly, and the grandmother all are living organisms. All the things show characteristics such as growth, metabolism, reproduction, etc. Thus, all can be considered as living things.
What are living organisms?A living organism is composed of different types of cells. The cell is the basic unit of life. These cells divide, and the body of the organisms show growth due to the increase in the number of these cells.
A cactus, a house fly, and the grandmother all are living organisms and show the defining properties of living things. These properties include growth, metabolism, and reproduction.
All the organisms grow with time as the cells undergo division and show metabolism as the cells undergo different reactions such as respiration, etc. All these organisms reproduce to form new organisms which are similar to themselves through the process of sexual and asexual modes of reproduction.
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2) List one way viruses can be helpful.
Answer: In fact, some viruses have beneficial properties for their hosts in a symbiotic relationship (1), while other natural and laboratory-modified viruses can be used to target and kill cancer cells, to treat a variety of genetic diseases as gene and cell therapy tools, or to serve as vaccines or vaccine delivery agents.
Explanation:
Answer: Viruses, like bacteria, can be important beneficial microbes in human health and in agriculture.
Does tap water need to resist shifts in pH? Why
or why not?
The conversion of carbonic acid to CO2 raises the pH level. People rarely need to adjust the alkalinity of their drinking water. Because alkalinity acts as a buffer to reduce pH swings, tap water should have a low alkalinity level.
Why is water's pH significant?Most chemical and biological processes in water are influenced by pH. It is a major environmental factor limiting species distributions in aquatic habitats. Different species thrive in different pH ranges, with most aquatic organisms flourishing between pH 6.5-8. The pH of water used for drinking or cooking is critical. Water that is too alkaline or too acidic is generally unhealthy to drink and can damage appliances and pipelines. Water pH levels are typically between 6.5 and 8.5, which is considered normal. The pH of a solution is a measure of its acidity or alkalinity, as well as its concentration of hydrogen ions. Normally, the pH scale ranges from 0 to 14.
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5 things that cellular respiration and photosynthesis have in common
A certain virus attacks the mitochondria in cells.what would happen to a cell if all of it mitochondria were destroyed?
Answer:
The mitochondrion is a cellular organelle whose function is to produce energy for the cell to function. ... If the mitochondria do not work well, the cell does not have enough energy to work and becomes ill. That is, the alteration of genetic material in the mitochondria causes disease.
Explanation:
I hope it serves you <3
Cellular respiration produces
ATP
Oxygen
Cellulose
Glucose
Answer:
ATP
Explanation:
Hope it is helpful...
what is Biotechnology ?
Answer:
The exploitation of biological processes for industrial and other purposes, especially the genetic manipulation of microorganisms for the production of antibiotics, hormones, etc.
Explanation:
Biotechnology is the process of scientific discovery and the application of these new products in areas that include medicine, food processing, fuel processing, waste disposal and environmental cleaning. Biotechnology also includes new processes such as gene therapy and cell engineering. It also encompasses the study of living organisms to make them into products for human needs.
Explanation:
If the amount of predators in the mice environment increased, the mices carrying capacity would_____. (Increase/Decrease). Because____
Answer: Decrease, i'm sorry i don't know the other one
Explanation:
Determine if each statement applies to DNA, RNA, both, or neither.
Base pairing leads to structural components of these molecules.
Double-stranded molecules are replicated and passed on to new cells.
Base pairing occurs between two purines.
Single-stranded molecules take various shapes to perform different functions necessary for protein synthesis.
Answer:
I guess
Explanation:
Base pairing leads to structural components of these molecules. Both
Double-stranded molecules are replicated and passed on to new cells. DNA
Base pairing occurs between two purines. Neither
Single-stranded molecules take various shapes to perform different functions necessary for protein synthesis. RNA
cuantos huesos tiene el esqueleto de un ave
Answer:
un cuerpo humano adulto tiene nada menos que 206 huesos
Explanation:
es lo que creó más o menos
