Answer:
the columbian ground squirrel is bigger and longer and has a orange spot on its nose and the cape ground squirrel is smaller and skinnier
Answer:
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Matter and energy both can neither be created or destroyed
True or false
Please explain thank you!
Answer:
true
Explanation:
Both the initial and final substances are composed of atoms because all matter is composed of atoms. According to the law of conservation of matter, matter is neither created nor destroyed, so we must have the same number and type of atoms after the chemical change as were present before the chemical change.
What does the Smooth E.R. Do
Answer:
it's important function is to manufacturer Lipids
Answer:
The smooth E.R mainly makes the lpids that make up the cell membrane.
Explanation:
19
1 point
The Endosymbiont Theory explains how the Golgi body is able to act in modifying proteins.
True
ОО
False
Answer:
Explanation:
This is true
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I was wondering if anyone had made a study guide for the Cambell Biology textbook
How does energy and matter move through the environment under aerobic and anaerobic conditions?
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The immune system has two modalities, specific and nonspecific responses. Which of the following is an example of a nonspecific response?
A. an antigen binding to an antibody
B. inflammation at the site of an infection
C. a cytotoxic T cell attacking a pathogenic agent
D. lymphocytes activating plasma cells in the blood
B. Inflammation at the site of an infection is an example of a nonspecific response of the immune system.
What is non-specific immune response?Non-specific immune responses, also known as innate immunity, are the first line of defense against invading pathogens and are activated immediately upon exposure to a foreign invader. These responses are not specific to a particular pathogen and do not require previous exposure or recognition. Instead, they provide a general response that helps to prevent the spread of the pathogen and contains it until the specific adaptive immune response can be activated.
Examples of non-specific immune responses include physical barriers such as skin and mucous membranes, as well as physiological responses such as inflammation, fever, and the activity of phagocytic cells like macrophages, which engulf and destroy pathogens. Non-specific immune responses also include natural killer cells, which are able to recognize and kill infected cells, and the complement system, a group of proteins that help to enhance the ability of other components of the immune system to destroy pathogens.
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How did Wegener think that continents went together?
Explanation:
Fossils of similar organisms across widely disparate continents encouraged the revolutionary theory of continental drift. He called this movement continental drift. Pangaea. Wegener was convinced that all of Earth's continents were once part of an enormous, single landmass called Pangaea.
Answer:
Wegener suggested that perhaps the rotation of the Earth caused the continents to shift towards and apart from each other. (It doesn't.) Today, we know that the continents rest on massive slabs of rock called tectonic plates. The plates are always moving and interacting in a process called plate tectonics.
Explanation:my dignity
______ tissue moves the body and its parts.
Answer:
Musle Tissue
Explanation:
Muscle tissue helps in body & its parts movements. It is able to do so, as it consists of special contractile cells - which can contract (shorten) in response to stimulus. And, then help the movable bones to move.
Which theory of the spread of human beings is supported most by modern
evidence?
A. Ice Cap theory
B. Multi-regional theory
c. Out of Africa theory
Don’t do it for the points please
Answer:
multi-regional theory
Explanation:
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how enzymes inhibitions studies in the formulation and development of drugs
Answer:
Enzyme inhibitors may alter the elimination rate of a particular drug or inhibit detoxication pathways
Explanation:
An enzyme inhibitor is a chemical compound capable of binding to an enzyme in order to reduce its activity. An enzyme inhibitor may bind to an active site and thus decreases the rate of reaction (direct inhibition). Enzyme inhibitors may act 1-to Inhibit detoxification enzymes and 2-reduce the elimination rate of enzyme drugs, thereby having dose-dependent toxicity effects. For example, many medicines are based on the inhibition of Cytochromes P450 (CYPs) proteins, which are a superfamily of enzymes required for drug metabolism.
Which of these decreases as greenhouse gas pollution increases?
A. Rate of ice-sheet melting
B. Ocean salinity
C. Ocean surface temperature
D. Sea levels
The climate-changing gases present in the atmosphere are greenhouse gases. An increase in greenhouse gas decreases the salinity of the oceans and sea. Thus, option B is correct.
What are greenhouse gases?Greenhouse gases are the major factor contributing to global warming and climate change. They are present in the atmosphere and have increased with a rise in the level of pollution.
The greenhouse gases have an inverse effect on the salinity or the thermohaline circulation. The increased temperature affects the glaciers and results in the melting of the ice caps thereby increasing the water level and surface temperature.
The increased water level and temperature increase the evaporation rate and elimination along with the circulation rate of the water from the poles and equator resulting in decreased salinity.
Therefore, the greenhouse gases decrease salinity.
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Where does the external respiration take place in pets?
Answer:
In mammals (like cat and dog pets), external respiration takes place by the exchange of gases in the alveoli of the lungs
Explanation:
External respiration refers to the process of exchange of gases, i.e., oxygen (O2) and carbon dioxide (CO2), with the environment. In mammals like humans, dogs and cats, external respiration occurs in the millions of alveoli in the lungs and the capillaries that are located in the walls of the alveoli. This process (gas exchange) happens due to simple diffusion. The O2 is taken from the environment (by inhalation) and travels from the alveoli to the blood in the capillaries that surround the alveoli, while and CO2 diffuses from the blood capillaries to the alveoli (where this gas is exhaled).
ATP synthase is powered or driven by ______ flowing through it, in order to make ATP molecules.
A. NADH
B. protons or hydrogen ions
C. protons
D. hydrogen ions
E. hydrogen or NADH
Answer:
B
Explanation:
Which of the following is NOT one of the four main layers of Earth's atmosphere?
A. Troposphere
B. Thermosphere
C. Mesosphere
D. Exosphere
2. Which organisms should be the least common?
Answer: The illustration is missing the type of organisms known as decomposers. They break down dead animals and plants and have the vital role in returning the nutrients back into the system, where they can be used once more by the primary producers.
Explanation:
Which behavior is a learned adaptation?
O a baby using a fork to eat
O sleeping
O All behaviors are learned.
o mating
Answer: the person before me is right. It’s a baby using a fork to eat.
Explanation: I just took the test! :)
Answer:
baby fork
Explanation:
i took the test :]
56. Students in an eighth grade science class are investigating different cells under a microscope,
as shown by the three microscope drawings below.
What part of the cell theory is best illustrated by these three slides?
O All organisms are composed of cells.
All organisms are composed of a single cell.
O All organisms are composed of more than one cell.
O All organisms come from pre-existing cells that divide.
All organisms come from pre-existing cells that divide.
What is Microscope?Microscope: a device that magnifies small objects, giving the user a close-up view of minuscule structures at a scale suitable for observation and analysis.
Even though optical microscopes are the focus of this article, an image can also be magnified by a variety of different wave types, such as acoustic, X-ray, or electron beams, and is then captured using direct or digital imaging, or a combination of these techniques.
The magnifying power of a microscope is a dimensionless ratio that expresses how often the thing under examination seems to be magnified.
Therefore, All organisms come from pre-existing cells that divide.
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What do we call species like wolves
who have impact on so many other
species, whether the effects are direct
or indirect?
nroducers
Answer: A keystone species
Explanation: This makes their presence especially important. For this reason, wolves are considered a keystone species. Wolves exert both direct and indirect effects on their ecosystem; influencing their prey, their prey influencing the plant and animal species beneath them, and so forth down the chain.
What are the advantages and disadvantages that prokaryotes have during the process of
protein synthesis?
Explanation:
Prokaryotes have the advantages associated with greater simplicity, including more rapid reproduction, rapid mutation and adaptation to new environments, and more diverse metabolic systems. They also possess an ability to pass on adaptive genes to other bacteria in the form of plasmids.
What is NOT a function of the nucleus?
Answer:
The nuclues cannot help modify proteins.
Explanation:
How does the skin protect the body against illness? Select two options.
The skin produces sweat and oil.
The skin acts as a barrier.
The skin identifies and coordinates an immune response.
The skin produces mucus.
The skin causes the body to produce antibodies.
Answer:
the first and second sentence
Explanation:
Answer:
1 and 2
Explanation:
At a sea level, the weight of the atmosphere on a human body is about:
A. 9,800 N
B. 980 N
C. 98 N
D. 9.8 N
Answer:D I believe
Explanation:
There are more genera (plural of genus) than kingdoms.
true or false
Answer:
true
Explanation:
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Water has a unique property. Like most liquids, it becomes denser as it cools, but at 4°C it reaches maximum density. Solid ice is less dense than liquid water, which is why ice floats. How would this property protect aquatic life in a lake?
A. The lake would not freeze solid.
B. Predators would be kept out of the lake.
C. Dissolved oxygen would remain in the lake.
D. Heat would be conducted away from the lake.
Answer:
A
Explanation:
It's A
Due to this unique property of water, the lake would not freeze solid.
What is anomalous expansion of water?The anomalous expansion of water is an abnormal property of water in which it expands instead of contracting when the temperature goes from 4 degree Celsius to 0 degree Celsius and it becomes less dense.
Due to this property of water, the aquatic life is protected deep in water in colder region so we can conclude that due to this unique property of water, the lake would not freeze solid.
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2. What is the difference between a scientific theory and scientific law?
A scientific theory attempts to explain why natural events occur while scientific law are
statements that describe natural events.
A scientific law attempts to explain why natural events occur while scientific theory are
statements that describe natural events
Answer:
Like theories, scientific laws describe phenomena that the scientific community has found to be provably true. Generally, laws describe what will happen in a given situation as demonstrable by a mathematical equation, whereas theories describe how the phenomenon happens
Explanation:
list 5 disorders that affect female reproductive system an discuss them
Answer:
Endometriosis.
Uterine Fibroids.
Gynecologic Cancer.
HIV/AIDS.
Interstitial Cystitis.
Polycystic Ovary Syndrome (PCOS)
What are the differences between active transport and passive transport
What is another term for the responding variable?
O primary variable
dependent variable
independent variable
uncontrolled variable
The answer is DEPENDENT VARIABLE
-edgy 2021
Answer:
B. Dependent variable.
Explanation:
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
Hence, an experiment is used by scientists or psychologists to illustrate how a change in variable affects behavior.
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
In an experiment, there are two (2) main types of variables and these are;
I. Independent variable: this is the variable that is being manipulated or alters and as such it is the cause of a behavior. This variable stands alone.
II. Dependent variable: this variable is the direct effect of the actions of the researcher in an experiment.
Basically, the dependent variable is the variable that is being measured and tested by an experimentalist.
Hence, dependent variable is another term for the responding variable because it responds to an action.
Which organisms perform photosynthesis in the ocean?
Answer:
Bioplaykton
Explanation:
