Answer:
c
Explanation:
explain how ostriches evolved to survive in their environment.
Answer:
Some scientists believe that there were huge fires and the skies were dark and full of pollution due to a meteor exploding and killing off the dinosaurs, and if it's true that this occurred, the Ostrich evolved to be a land animal due to it being too dangerous in the air for them. The long neck may have developed to help them get food that was higher up which is the same speculation for the Giraffe. To stay on land they had to be stronger, bigger, and faster than they were in flight.
Explanation:
Deforestation is the permanent destruction of forests in order to make the land available for other uses. This process leads to fewer plants being available to conduct photosynthesis. Which of these is a possible effect of deforestation on the process of cellular respiration?
Answer:
A lesser amount of oxygen will be available for cellular respiration
Explanation:
Deforestation can be defined as the permanent removal of trees in forest areas for other land uses (for example, agriculture use). It is well known that deforestation has a negative effect on natural ecosystems. An important proportion of the oxygen in the air is generated by plants during photosynthesis, and it has been estimated that about 30% of the land photosynthesis is due to tropical forests. Aerobic cellular respiration is a metabolic pathway by which organisms use oxygen to produce energy in the form of ATP. In consequence, deforestation represents a serious problem to sustain cellular respiration, and ultimately to sustain life.
Answer:
Less oxygen is available for use during cellular respiration.
Explanation:
I just took the test
Which part of an animal or plant cell contains the cell's genetic information?
ribosome
mitochondria
cytoplasm
nucleus.
Answer:
nucleus
Explanation:
Edxcel alevel biology past papers: some of the blood plasma of individuals who have survived infection wtih Ebola can be collected. This can be used in the treatment of individuals currentlty infected with Ebola. Explain why the blood plasma from survivors can be used to treat new cases of Ebola infection.
Answer:
This was the only treatment options adopted for the Ebola in 1995 in the Democratic Republic of Congo. The assumption was that immune response is generated by the virus in the WBC of the infected individuals. These response produce antibodies.
A total if 8 patients were transfused with these blood contained antibodies, but one of these died, the remaining 7 patients survived.
The antibodies were believed to have multiplied(produced b-cells) to neutralize the Ebola virus(antigens) and to ensure the survival of the patients
Explanation:
Which two scientists incorrectly named the compound?
A. Adele and Halley
B. Ethel and Kate
C. Kate and Audrey
✓ D. Audrey and Ethel
Answer: D
Explanation:
The passage of genetic instructions from one generation to the next is known as what?
Answer:
heredity
Explanation:
Answer: heredity because it is
Gregory is making a turkey for Thanksgiving by roasting it in his oven. The turkey started at a room temperature of 25°C, and the oven was preheated to 175°C. If Gregory accidentally turns off the oven after he places the turkey inside of it, then what will happen to the turkey? *
A)Thermal energy will flow from the oven into the turkey and continue to flow until they reach equilibrium at 100°C or the turkey is removed.
B)Thermal energy will flow from the turkey into the oven and continue to flow until they reach equilibrium at 100°C or the oven is turned off.
C)Thermal energy will flow from the oven into the turkey and continue to flow until the turkey reaches a temperature of 200°C.
D)Thermal energy will flow from the turkey into the oven and continue to flow until the oven reaches a temperature of 200°C.
Answer:
A
Explanation:
The correct answer would be that thermal energy will flow from the oven into the turkey and continue to flow until they reach equilibrium at 100°C or the turkey is removed.
Since there is a difference in the temperature of the two bodies, thermal energy will continue to flow from the body with higher thermal energy to the body with lower thermal energy until an equilibrium is established between the two bodies.
In this case, thermal energy from the oven will continue to flow to the turkey, raising the temperature upward from 25 °C. As the temperature of the turkey is increasing, that of the oven would be decreasing till both the turkey and the oven have the same temperature or when the turkey is removed from the oven.
The correct option is A.
True or False? No organism can maintain homeostasis by itself
Answer:
TrueExplanation:
Hope this helps! <3
If a person combat the disease without a vaccine introduced to his body,such immunity is known as
natural active immunity
natural passive immunity
Artificial active immunity
artificial passive immunity
Answer:
natural active immunity will be the answer
21.5 grams of potassium Dichromate is dissolved in water to make 650.0 mL of solution. What is the concentration of the potassium ions in the above solution?
Answer:
30% concentration
Explanation:
:)
What is the process called when Mitochondria/Chloroplasts multiply?
A. Conjugation
B. Mitosis
C. Binary Fission
D. Meiosis
Answer:
I believe that is mitosis, but please correct me if I'm wrong.
what is the least number of carbon atoms a fatty acid can have.
Answer:
The list number is between 4 and 24
Explanation:
Answer:
4 carbon atoms a fatty acid can have.
HELP MEEEEE PLEASEEE ASAPPPPP
how can a small change in energy use make a significant difference in CO2 emissions
Answer:
⬇️
Explanation:
small changes in energy use like switching to water & wind based systems can reduce carbon pollution and create a better energy creating source.
Which process is happening in the reaction that is shown?
HR
HR
H
H. C N C
Н. С. o
N
0
+
C
c-o-H
H
Н"
'N
1
H
C
II
O
H
O
RH
R H
+
H
TH
A. lonization
B. Hydrolysis
C. Carbonization
D. Dehydration
Answer:
Your answer Is A :)))
Explanation:
Dehydration will be regarded as the result of the given chemical reaction. So, the correct option is D.
What is Dehydration reaction?A dehydration reaction is a chemical process in which the reacting molecule or ion loses water. The opposite of a hydration reaction, dehydration reactions are frequent processes.
Dehydration synthesis is a chemical process that joins two smaller molecules by eliminating atoms from each of them. Organic compounds may be further divided into aliphatic and aromatic compounds based on the structure of hydrocarbons. The generation of new compounds with changes in atom bonding can occur in a variety of chemical processes involving organic molecules. Dehydration will be regarded as the result of the given chemical reaction.
Therefore, the correct option is D.
Learn more about Dehydration reaction, here:
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Ladybugs were introduced as predators into an
agricultural area of the United States to reduce the
number of aphids feeding on grain crops. This
action is an example of
A. biological control of insect pests
B. preservation of endangered species
C. conservation of natural resources
D. protection of watersheds
Answer:
I believe it would be A,
Two students completed an experiment to determine if pesticide use at local farms was causing fish kills in a local pond. The steps of the experiment are listed below. Select one location to collect water samples in the pond. Collect a 5-mL water sample at 8 am for two days. Measure the amount of pesticide present in each sample using the same measurement tools. After analyzing their data, the students conclude that pesticide runoff from farms is not causing the fish to die in the pond. Which of these statements best describes why their conclusion is not reliable? The pesticide measurements were the dependent variable. The samples were collected at different times. The samples were only collected for two days. The time of sample collection was not an independent variable.
Answer:
The pesticide measurements were the dependent variable
Explanation:
According to this question, an experiment to determine if pesticide used at local farms was causing fish kills in a local pond was conducted by two students. They followed the following steps:
- Select one location to collect water samples in the pond.
- Collect a 5-mL water sample at 8 am for two days.
- Measure the amount of pesticide present in each sample using the same measurement tools
However, after analyzing the data, they concluded that "runoff from farms is not causing the fish to die in the pond". The students' conclusion is not reliable because THE PESTICIDE MEASUREMENTS WERE THE DEPENDENT VARIABLE.
Note that, the dependent variable in an experiment is the measured variable while the independent variable is the manipulated variable. In this case, the students ought to measure the death RATE OF FISH KILLS as the dependent variable instead. The PESTICIDE is the independent variable of the experiment not dependent variable. This was the reason for the unreliability of the conclusion.
Earth moon sun system model answers for edenuity
The Earth orbits the Sun while the Moon orbits the Earth. The Earth also rotates about its axis once every 24 hours making an Earth day 24 hours long. The Moon also rotates about its axis. However, due to gravity, the Moon's rotation is such that the same side of the Moon always points towards Earth.
Moon
☀️ . o
Sun Mercury Venus Earth
*the space between each planet is not accurate to real life cause they are millions and thousands away from each other*
Where do Earth’s convection currents occur?
the lithosphere
tectonic plates
the asthenosphere
the subduction zone
Answer:
The asthenosphere
Explanation:
Heat is generated from the radioactive decay of elements in the interior of the Earth, which creates magma in the asthenosphere. Hope this helped
Answer:
the athenosphere
The mantle is where convection currents occur. Magma from the core help fuel these currents. The answer to the question is the athenosphere.
Hope this helps you!
What kind of joint is pictured in the diagram below? ASAP
its c
:) hope that help
A student used a microscope to observe Elodea submerged in a solution. The student observed the cell cytoplasm pull away from the cell wall and clump together in the center of the cell. Which statement best explains why this occurred? A-The cell was submerged in a hypertonic solution. B-The cell was submerged in a hypotonic solution. C-The cell was submerged in a pure solution. D-The cell was submerged in an isotonic solution.
Answer:
A
Explanation:
The correct answer would be that the cell was submerged in a hypertonic solution.
A hypertonic solution is a solution with a higher concentration of solutes than that of the cytosol of a cell suspended in it. When a cell is suspended in a hypertonic solution, water moves osmotically from the cytosol to the hypertonic solution. This causes the cytoplasm to collapse and the cell becomes flaccid.
The correct option is A.
Answer:
D. The cell was submerged in a hypertonic solution.
Explanation:
3. How does oxygen cross into the cell?
Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
The oxygen cross into the cell as water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion has been one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
What is osmosis?
Osmosis has been the process in which molecules of the solvent pass via a semipermeable membrane from a lower concentrations to higher concentration or from less concentrated solution to high concentrated solution. In the process of the osmosis movement of the water takes place.
There are mainly three types of the osmosis and these are hypertonic, hypotonic, and isotonic. The process of osmosis has been passive transport as water moves from low solute concentration to high solute concentration.
Osmosis has been also known as diffusion of water or solvent via a membrane which allows only selective substance to go across the channel. The process of osmosis does not require ATP because it is a passive process.
Therefore, The oxygen cross into the cell as water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion has been one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.
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Type fast if you don’t mind ty!!
Answer:
c
Explanation:
Information about which of the following would be most pertinent to a small organic farm that solely relies on manual labor to till, plant,
water, and harvest crops?
dehydration and heat exposure precautions
heavy equipment training and maintenance
drip irrigation installation and maintenance
hazardous chemicals storage precautions
Answer:A
Explanation:
If i had to guess its A because its the only one that doesn't require equipment, since the question said it was a small organic farm that only practiced Manuel labor.
Answer:
dehydration and heat exposure precautions
I_11) WHICH THREE ELEMENTS ARE FOUND IN ORGANIC COMPOUNDS
A) C,H,O
B) C, H, Ne
C) N, H,
ĐÀ N, C#, Ph
Answer:
a) CHO
Explanation:
Usually its four elements: hydrogen, carbon, oxygen and nitrogen, are the major components of most organic compounds
What is the process called that takes sunlight, carbon dioxide and water to make sugar and oxygen?
Answer:
Photosynthesis
Explanation:
During the process of photosynthesis, cells use carbon dioxide and energy from the Sun to make sugar molecules and oxygen. These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose.
Answer:
Photosynthesis
Explanation:
A scientist uses electricity to break down water into hydrogen gas and oxygen gas. Which statement best explains what happens? A. A chemical change occurs. O B. A base neutralizes an acid. O c. An acid neutralizes a base. O D. A physical change occurs.
Answer:
A. A chemical change occurs.
Explanation:
1) How might stem cells be a solution to paralysis caused by spinal injuries? The stem
cells could replace the nerve cells that have died as a result of the injury.
2) What are other potential medical uses?
Answer:
1. A stem cells can be defined as totipotent cells because they have the capacity to self renew themselves.
Spinal cord injury leads to loss of nervous tissue also loss of motor and sensory function, currently there is no such treatment available that can completely repair the spinal cord, but the transplant of stem cells may help in the spinal cord repair.
The stem cells could never replace the nerve cells that died as a result of the injury, stem cells can help the nerve cells to repair.
2.Other medical uses are:
To repair the damaged organs or tissues Correct the genetic defects safely testing of new drug.What did Watson and Crick’s model of DNA show?
sugars and phosphates on the inside
nitrogenous bases on the outside
a single nucleotide strand twisted in a spiral
two nucleotide strands wound in a double helix
Answer:
D.) Two nucleotide strands wound in a double helix.
Explanation:
Their model shows that DNA is composed of two double strand of nucleotide which are twisted around each other and run in antiparallel direction. the phosphate group and pentose sugar are present on outside, while nitrogenous base is present on inside
Answer:
Franklin produced an image containing "two strands twisted with double helix and phosphate back bone with base pairs".
Watson and Crick taken the x-ray image created by Franklin which lead to discovery of accurate model of shape of DNA.
.
Explanation:
2020
1. Hot coffee is stirred with a spoon, the spoon gets hot due to _______________. 2. A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of_______________. 3. A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to _______________.
Answer:
Explanation:
1.Hot coffee is stirred with a spoon, the spoon gets hot due to _______________.conduction
2.The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of_______________. Radiation
3. A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to _______________.Convection
hope this helps
Answer:
1) Conduction.
Heat transfers to a spoon as the heat energy is passed from the coffee to the spoon through conduction.
2) Radiation
The heat on the glass surface gets radiated into the chair which causes the chair to warm up.
3) Convection
The globs are hot and less dense, which rises to the top whereas the cold globs are more dense which causes it to settle down.
A population distribution shows _______.
a.the distribution of age groups within a population
b.the amount of organisms in a unit area
c.the total number of organisms in a population
d.where and in what arrangement organisms are located
Answer:
D
Explanation:
Think about the definition of “distribution “.