Answer:
True
Explanation:
Plants and algae proxide alot of oxygen in the world. 50% to 80%.
Answer:
True.
Explanation:
Plankton provides most of the world's oxygen supply. Plankton is a type of microscopic algae.
Which of the following are ways in which thermal energy (heat) can be transferred? Select all that apply.
A.) radiation
B.) convection
C.) consumption
D.)conversation
E.) conduction
F.) entropy
G.) telepathy
H.) bippity boppity boo-yah
Answer:
A.radiation
D.conversation
Which of these could NOT be used to replace a wire in a circuit?
iron nail
iron nail
bendable straw
bendable straw
steel spoon
steel spoon
aluminum foil
Answer:
bendable straw
Explanation:
It is made out of plastic and can bend pls mark as brainlist
Which list gives the complete path for pollen as it fertilizes a plant?
stamen - pistil - anther - ovary
stamen - anther - pistil - ovary
anther - stigma - style - ovary
anther - style - stigma - ovary
Answer: 3
Explanation:
The complete path for pollen as it fertilizes a plant anther, stigma, style, and ovary. Thus, option C is correct.
What is anther, stigma, style, and ovary?Anther is known as the part of a stamen and it that produces and it does contain pollen and it is usually borne which present on a stalk which shows the illustration. Anther is known as the part present in the stamen in which the pollen has to produced.
Style is known as the tube shaped structure which has the function of support to the stigma. The main function of the style has to assist the procedure of the fertilization as well as giving permission of pollen tube that travel in the delivery of the sperm cells in the egg.
Ovary is known as the basal enlarged part of the pistil, and it is known as the flower's female organ. The ovule is present in the ovary later it develops into the seed just after the process of fertilization. The main character of ovary is that it matures and develop into the fruit.
Therefore, The complete path for pollen as it fertilizes a plant anther, stigma, style, and ovary. Thus, option C is correct.
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Which statement is true?
Answer:
both a and b are correct
Explanation:
opposites attract
Which statement about natural selection is true?
3. Explain why energy is required to move the hydrogen ions across the membrane in the direction
indicated in Model 1.
Answer:
Energy is required to move the hydrogen ions across the membranebecause the hydrogen ions are movingagainst the concentration gradient. High potential energy electrons provide the energy necessary to pumphydrogen ions across the inner mitochondrial membrane.
How does a decrease/decline in a top predator impact biodiversity in an ecosystem?
Answer:
The most obvious result of the removal of the top predators in an ecosystem is a population explosion in the prey species. ... When prey becomes more scarce, the predator population declines until prey is again more abundant. Therefore, the two balance each other. When the predators are removed, prey populations explode.
What is the letters of the complimentary base pairs to convert this DNA strand in to an RNA strand: GCTGCA
Answer: CGACGU
Explanation: Remember the base pairing rules: cytosine with guanine and adenine with uracil (in the absence of thymine, which mRNA does not have). To compliment the given strand, you'd have to choose the base that would pair with each individual nucleotide.
Hope this helps,
Lacia
i will give you 10 points if you answer this question!which major ecosystem of the United States is represented by the area shown in red?
O Alpine
OTundra
OGrassland
O Deciduous forest
Answer:
b) Tundra
Explanation:
Tundra is the major ecosystem of the United States represented by the area shown in red of Alaska. Because, they are very cold and snow fall regions. Hence, option (b) is the correct answer.
In an experiment, the variables that are kept the same between the experimental group and the control group are called ________.
A) Outliers
B) Constants
C) Dependent Variables
D) Independent Variables
Answer:
B. Constants
Explanation:
Constants are the factors that stay the same throughout the entire experiment no matter which group. The definition of a constant is "a situation or state of affairs that does not change." this furthers the point that constant is the correct answer because they don't change in the experiment.
B) I believe? Normally I'd say controlled variable
1. Question: What effect does the amount of water have on plant growth?
Hypothesis:
If, then, because
Answer:
If a plant's soil has too much water, the roots can rot, and the plant can't get enough oxygen from the soil. If there is not enough water for a plant, the nutrients it needs cannot travel through the plant. A plant cannot grow if it doesn't have healthy roots, so the proper balance of water is key when growing plants
Explanation:
The hypothesis of this scientific question will state: IF the amount of water increases, THEN the plant growth will also increase.
WHAT IS HYPOTHESIS:
Hypothesis is a testable explanation of a phenomena. It is used in the scientific method to provide a possible answer to a scientific question. The hypothesis, which is subjected to testing via experimentation, shows the relationship between the independent variable (cause) and dependent variable (effect). The question of this experiment is as follows: 'What effect does the amount of water have on plant growth'. This means that the independent variable is the amount of water and the dependent variable is the measurable growth of plant.Therefore, the hypothesis will read as follows: IF the amount of water increases, THEN the plant growth will also increase.
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Which two methods do scientists use to gather information ??
Answer: Experiments and observations
Explanation:
Hope this helps
When a flu virus enters the body, the immune system creates antibodies made of polypeptide chains to fight the virus. The specific shape of the protein allows it to bind to the virus and deactivate it. How does the antibody's primary protein structure create the specific shape to bind to flu viruses?
Answer and explanation:
Antibodies are structures made of four polypeptides, two light (L) chains and two heavy (H) chains that join together and form a molecule shaped like a "Y". This structure is possible thanks to the disulfide bonds that bind light chains and heavy chains together. While the stem of the Y is constant and doesn't change ("constant region"), the tips of the Y, composed of 110-130 amino acids and called "the variable region", vary greatly among the different antibodies and are responsible for the high specificity of these molecules.
This is why we could say that the primary structure of this protein is given by disulfide bridges that twist the antibody and allow it to bind to a protein from the flu virus.
how do atoms become charged and how do they balance those charges
Answer:
Atoms that lose electrons acquire a positive charge as a result because they are left with fewer negatively charged electrons to balance the positive charges of the protons in the nucleus. Positively charged ions are called cations. Most metals become cations when they make ionic compounds.
Explanation:
PLZ HELP me...im struggling
You wan to study the effect of different types of water on the growth of plants you choose the same type of plants. All plants are planted in the same type soil, placed in the same location, exposed to the same room temperature. You water each plant with one of the four different types of water (salt water, regular water, sugar water and distilled water.) after a two-week period, the height of the plants is measured. What is the manipulated, responding, controlled variable
Answer:
The correct answer is -
The manipulated - type of water
Responding - the height of plants
Controlled variable- regular water
Explanation:
The manipulated or independent variable is in scientific research is a variable that is changed or manipulated to see the response of the responding variable or dependent variable.
In this case type of water, plants get, is manipulated as a different type of water is provided to different plants. So variable that is measured or showing response to the manipulated variable is, is responding variable that is the height of the plants.
The controlled variable is a variable that is set to see or compare the difference in normal condition and manipulated conditions that is regular water here in this case.
Why do you think we see phases of the Moon?
Answer:
Just like the Earth, half of the Moon is lit by the Sun while the other half is in darkness. The phases we see result from the angle the Moon makes with the Sun as viewed from Earth. ... We only see the Moon because sunlight reflects back to us from its surface.
Explanation:
What color is ragweed pollen
Answer:
A yellow-green.. Just search it up.
Explanation:
The color which can be attributed to the ragweed pollen when it is been analyzed can be regarded as greenish yellow.
How can the color of ragweed be described?Ragweed has tiny heads of greenish yellow blooms that produce large amounts of pollen that is dispersed by the wind rather than insects. While ragweed blooms are not particularly eye-catching, it is frequently simpler to identify these plants by their stems and leaves.
In the aster family, Asteraceae, the genus Ambrosia contains flowering plants known as ragweeds. They are found across the Americas' tropical and subtropical climates, particularly in North America, where the southwestern United States and northwest Mexico are the genus's origin and diversity core.
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Loss of habitat leads to a loss of generalist species, followed by a loss
of generalist species?
True or False?
Answer:
It is true
Explanation:
for example the pond is dry .where will the animals that live in that pond stay
Answer:
Explanation:
this seems like a good answer to me
please help me! asap im trying to figure this out
Answer:
you have it right I think
Answer:
[tex]\boxed {\tt 2nd \ Answer}[/tex]
Explanation:
An enzyme is a protein that speeds up a chemical reaction. Enzymes are shape specific. The active site is a specific shape, which means it can only break down specific substrates.
Certain conditions can denature enzymes. For example, extreme temperatures or pH will cause the enzyme to deform and change shape, which means it cannot perform its job.
Therefore, the best choice is the second one: enzymes work best in specific conditions and only break down specific substrates.
what is the role of chloroplasts in photosynthesis
Answer:
Explanation:
The primary function of photosynthesis is to convert solar energy into chemical energy and then store that chemical energy for future use.
Students investigate how soil pH affects the height of tomato plants. Each of six tomato plants receives the same amount of
light each day and is planted in the same size pot and given the same amount of water. Each plant is planted in soil with a
different pH What is the dependent variable in the investigation?
Сь
Ос
Od
The size of the pot in which the plants are grown
The pH of the soil in which the plants are grown
The amount of water given to the tomato plants
The height to which to tomato plants grow
Answer:
The height to which to tomato plants grow
Explanation:
In an experiment, the dependent variable is the variable that the experimenter measures. It is the variable that responds to changes made to the independent/manipulable variable.
According to this question, students investigate how soil pH affects the height of tomato plants. The different pH each plant receives is the independent variable while the HEIGHT OF THE PLANTS that responds to the soil pH or that is measured by the students is the DEPENDENT VARIABLE.
how do you expect the period of a planet to change as its average distance from the sun increases?
Answer:
The closer a planet is to the sun, the stronger the sun's gravitational pull on it, and the faster the planet moves.
construct a dialogue between your friend about the online class
Answer:
Them: Do you like online school?
Me: Yes its kinda fun.
Them: why?
Me: Because i can watch anime all day without them knowing
The chemical energy stored in ATP during photosynthesis is released during the dark phase to _____.
produce O 2
produce CO 2
release energy for the "light."
produce carbohydrate from CO 2
answer-
produce carbohydrate from co2
WILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!
Which of the following DOES NOT add carbon dioxide to the atmosphere.
Group of answer choices
planting trees
burning wood
cooking with gas
riding in a bus
planting trees
Explanation:
its just planting not respiring
Different microscopic organisms cause different diseases. When a dangerous microscopic organism is transferred from one person to many people, the disease it carries will spread. Why is this considered a theory instead of a hypothesis or a law? It is a statement of fact about how nature works instead of an explanation. It provides an explanation for many observations and accepted hypotheses. It describes how to test a possible explanation of one specific relationship. It has not changed over time even though new technology has been developed.
Answer:
The correct answer is - it provides an explanation for many observations and accepted hypotheses.
Explanation:
The theory is well tested or substantiated explanation for the observation of the natural phenomenon, that included or incorporated various laws, hypothesis, or facts.
It is not just a possible explanation but a well-tested and proven explanation with the help of scientific experiments in a scientific method.
Thus, the correct answer is - it provides an explanation for many observations and accepted hypotheses.
Answer:
Explanation:
the answer is B. for a short answer
Which statement is true of tropical rainforests?
Answer:
D
Explanation:
A rainforest is a forest that receives heavy rainfall. The most notable rainforests are in the tropics or subtropics. They have extraordinary biodiversity.
The biggest rainforest is the Amazon rainforest and is considered to be the lungs of Earth due to the amount of oxygen it supplies.
Answer:
D..................................
explain how the equations for photosynthesis and cellular respiration compare.
Answer:
In Photosynthesis, carbon dioxide and water is yielded to glucose and oxygen. In respiration, glucose and oxygen is yielded to carbon dioxide and water. C6H12O6 (glucose) + O2(oxygen) → CO2(Carbon Dioxide) + H2O(water) + ATP energy.
Explanation:
The equations of photosynthesis and cellular respiration compare in such a way that one seems like the opposite of the other.
In photosynthesis, inorganic materials such as water and carbon dioxide are used to generate carbohydrates according to the following equation:
[tex]6CO_2 + 6H_2O + energy ---> C_6H_1_2O_6 + 6O_2[/tex]
In cellular respiration, carbohydrates are broken down to generate energy with water and carbon dioxide being by-products according to the equation below:
[tex]C_6H_1_2O_6 + 6O_2 ---> 6CO_2 + 6H_2O + energy[/tex]
Thus, the two processes are chemical opposite of each other. The starting materials of photosynthesis are the products of cellular respiration and vice versa.
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Which part of the water cycle affects humidity by increasing
water vapor in the air?
HELPPP MEEE PLSSSS