Which statements about light microscopes are correct?

1. To calculate the magnification of a light microscope the eyepiece lens and objective lens magnifications are added together.

2. As the magnification increases the resolution decreases.

3. The resolution of a light microscope is limited by the wavelength of light.

4. The scale on a stage micrometer is resolved more clearly than an eyepiece graticule.


1,2,3 and 4
1,2,3 and 4

1,3, and 4 only
1,3, and 4 only

2 and 3 only
2 and 3 only

2 and 4 only
2 and 4 only

Answer:

yes it does

Explanation:

Answer:

False

Explanation:

Genetic diversity is diversity among members of a species. Species diversity is the diversity of species in a particular area or region. Genetic diversity is what makes each of us different, while species diversity would be like a nationality.

Answer:

D, recessive

Explanation:

Answer:

dominate

Explanation:

dominate they both have Ff meaning that they all have a chance of being the same but also a chance of all being different but the mother and father both are Ff so i believe that it should be dominant

The organization of skeletal muscle at tissue level is made up of:

• Epimysium; around the muscle belly.

• Perimysium; surrounding the muscle fascicles.

• Endomisium; coating the muscle fibers, which in turn, are made up of myofibrillar structures.

The muscle cell or fiber is the structural and functional unit of muscle tissue. The skeletal muscle tissue has a striated appearance.

Muscle fibers are organized in bundles surrounded by an outer connective tissue membrane, called the epimysium.

Very thin septa of connective tissue start from this, which are directed towards the interior of the muscle, dividing it into fascicles, these septa are called perimysium.

Each muscle fiber is surrounded by a very thin layer of reticular fibers, forming the endominsium.

The connective tissue holds the muscle fibers together, allowing the contraction force generated by each individual fiber to act on the entire muscle, thus contributing to its contraction.

Therefore, we can conclude that the organization of skeletal muscle at tissue level of the striated muscle fibers is given by the connective tissue that is organized in: Endomysium, Perimysium and Epimysium.

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Answer:

The community would be out of resources

Explanation:

the doubling of the rat would surely affect the resources of the community.

Answer:

Well if we wanted to be literal, people celebrate birthdays when they are actually born since that's the point of a birthday, but he's celebrated 83 if memory came into play.

Explanation:

Answer:

D. nucleus

Explanation:

The nucleus typically occupies 8% of the total cell volume.

Answer:

C. Promote ocean ownership.

Explanation:

The IOOS is a partnership between federal, regional, and private agences to:

- increase understanding of our oceans and coasts

- improve safety

- enhance the economy

From ed 2020 APES notes.

Answer:

c.

promote ocean ownership

Explanation:

Ocean Exploration

Edge 2020

Answer:

They create channels.

Explanation:

Brainliest please?

Answer:

The pollen would not be able to reach the eggs inside the female cones.

Explanation:

Answer:

A) Rock climbing

Explanation:

The geosphere of the Earth includes all of its solid parts - the rocks, minerals, and landforms of its surface and interior. If we know this, we can conclude that the activity that involves interaction with the geosphere is rock climbing. Rocks are a part of the geosphere, and as we attempt to climb them, we are interacting with them.

Swimming and sailing are examples of interaction with the hydrosphere.

Riding in an airplane is an example of interaction with the atmosphere.

Answer: B. haploid; diploid

Explanation:  Egg and sperm cells contain a single set of chromosomes and are known as haploid. Haploid is having a single set of unpaired chromosomes in a cell or nucleus. A diploid is a cell or nucleus containing two complete sets of chromosomes, one from each parent.

If I put a potato in ammonia (a base) then the activity of catalase will decrease  because the pH level will be to basic for any catalytic (catalase) activity.

Hope this helps! Please correct me if I'm wrong :)

If I put a potato in ammonia (a base) then the activity of catalase will decrease  because the pH level will be to basic for any catalytic (catalase) activity.

An enzyme called catalase causes (catalyzes) the process by which hydrogen peroxide is broken down into water and oxygen.

Catalase, which is widely distributed in organisms that live in the presence of oxygen, inhibits the buildup of peroxide, which is continuously created by multiple metabolic reactions, and shields cellular organelles and tissues from harm. Catalase is primarily found in the liver of mammals.

Therefore, If I put a potato in ammonia (a base) then the activity of catalase will decrease  because the pH level will be to basic for any catalytic (catalase) activity.

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1 and 3 are the correct answers

Answer:

-temperature and rainfall

Explanation:

Terrestrial biomes are defined as regions of similar vegetation and climates. Certain types of vegetation have specific growth requirements for their optimal water and temperature. They tend to thrive within regions where these needs are met, thus making up the dominant plant types.

At or close to the equator, biomes are warmer due to the high intensity of sunlight (the equatorial regions the most sunlight), and warmer air holds more moisture, making the regions more prone to rainfall.

Answer:

eqt4t5464365y

Explanation:

dghgfsfhhfr

Answer:

Galileo performed a famous experiment where he used a ball rolling on a ramp (inclined plane) to study the motion of objects under the influence of gravity. The ramp allowed him to make more precise measurements because the ball moved more slowly along the ramp than if it were simply dropped. Galileo discovered through this experiment that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotle's theory of gravity (which states that objects fall at speed proportional to their mass). Galileo's conclusion from this thought experiment was that no force is needed to keep an object moving with constant velocity. Newton took this as his first law of motion. One result of the experiment surprised Galileo, and one surprises us. Galileo found that the heavy ball hit the ground first, but only by a little bit. Except for a small difference caused by air resistance, both balls reached nearly the same speed. And that surprised him. According to history, Galileo’s experiment on falling bodies largely contributed to Isaac Newton’s Law of Gravity. In Galileo’s experiment, he is said to have dropped balls from the Leaning Tower of Pisa. The balls were made of the same material but had different masses. Galileo set out to prove that the time it took for these objects to reach the ground would be the same. Galileo proved that objects reached the ground at the same time.

Explanation:

A P E X

Answer:

Wind, rain, predation and earthquakes are all examples of natural processes which impact an ecosystem. Humans also affect ecosystems by reducing habitat, over-hunting, broadcasting pesticides or fertilizers, and other influences

Explanation:

Answer:

earthquake is the natural events that change ecosystems

Explanation:

flood pollution, deforestation , overpopulation and fire are all man made.

Answer:

D

Because you need a lot of feed for livestock to gain weight for slaughter

Answer:

When light energy reaches the pigment molecules, it energizes the electrons within them, and these electrons are shunted to an electron transport chain in the thylakoid membrane.

Explanation:

During photosynthesis, light absorbed by plant is used for energizing electrons  for an electron transport chain to take place in thylakoid membrane.

Photosynthesis is defined as the  process by which plants and other photosynthetic organisms convert the light energy in to chemical energy  through the process of cellular respiration.

Some of the energy which is converted  is stored in the form of  molecules of carbohydrates like sugar and starches  which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis  are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the percent  of oxygen in earth's atmosphere.

The process begins with proteins absorbing light energy  which are called reaction centers and have a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles which are called chloroplasts while in bacteria they are present in plasma membrane.

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Answer:

m = 7/5 [Slope]

Explanation:

The first method uses the point slope equation/formula: y - y1 = m ( x - x1 ).

Where (x1,y1) is the initial point, (x,y) is the final point), and m is the slope of that line.

Answer:

Explanation: The nucleotide sequences that make up DNA are a “code” for the cell to make hundreds of different types of proteins; it is these proteins that function to control and regulate cell growth, division, communication with other cells and most other cellular functions. ... This process is called protein synthesis.

Answer:

ATP and NADPH transfer chemical energy to 3-PGA.

Glyceraldehyde 3-phosphate (G3P) is created.

G3P is used to make sugar.

Explanation:

edge 2020

i'm just different

During the reduction stage of the Calvin cycle, the 3-PGA molecules produced by carbon fixation are transformed into simple sugar molecules – glucose.

In this step, the energy is supplied by the ATP and the NADPH produced during the light-dependent photosynthesis reactions.

ATP, or NADPH, is used to transform the 3-PGA molecules into three-carbon sugar molecules (G3P molecules). The name “G3P” comes from the fact that NADPH gives electrons to, or breaks down, a 3-carbon intermediate to form G3P.

Carbon dioxide in the atmosphere undergoes a redox reaction to glucose. This redox reaction requires the total reduction of CO2 using the electrons available in the oxidation of the NADPH. Thus, the dark reactions are a redox pathway. Calvin-Benson cycle.

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Answer:

a. enclosing their DNA in a nucleus.

Explanation:

Prokaryotes in general have no membrane bound organelles. The cells are enclosed in a plasma membrane though .

Answer:a

Explanation:

Answer:

a

Explanation:

What happens in each stage?

GLYCOLYSIS: "In glycolysis, glucose—a six-carbon sugar—undergoes a series of chemical transformations. In the end, it gets converted into two molecules of pyruvate, a three-carbon organic molecule. In these reactions, ATP is made, and NAD+ is converted to NADH." (Khan Academy)

KREB'S CYCLE: "This is a central driver of cellular respiration. It takes acetyl CoA—produced by the oxidation of pyruvate and originally derived from glucose—as its starting material and, in a series of redox reactions, harvests much of its bond energy in the form of NADH, FADH2, and ATP molecules. The reduced electron carriers—NADH and FADH2—generated in the TCA cycle will pass their electrons into the electron transport chain and, through oxidative phosphorylation, will generate most of the ATP produced in cellular respiration." (Khan Academy)

ELECTRON TRANSPORT: "In the electron transport chain, electrons are passed from one molecule to another, and energy released in these electron transfers is used to form an electrochemical gradient." (Khan Academy)

How many ATP molecules made during each stage?

GLYCOLYSIS: 2 ATP

KREB'S CYCLE: 2 ATP

ELECTRON TRANSPORT: 34 ATP

Khan academy is the best for breaking down processes in chemistry! I used khan all the time when I had trouble understanding chemistry last year.

Hope this helps! Please correct me if im wrong!

Answer/Explanation:

Using solar energy, photosynthesis uses carbon dioxide and water to produce glucose and oxygen, whereas respiration uses glucose and oxygen to produce energy, releasing carbon dioxide and water.

Therefore, photosynthesis and respiration act as a cycle, using reverse reactants and products.

Photosynthesis builds food for the cell to use, respiration uses this food to power cellular processes.

Answer:

Invasive species compete for the same natural resources such as food and water which the native species also need for survival.

Explanation:

Invasive species upset the stability of the ecosystem because the prey in their new environment does not have the needed defense against them. They also upset the food chain, consume so much, and overpopulate in the new territory thus causing the extinction of the native species.

The introduction of brown tree snakes in Guam disrupted the ecological system as their population increased rapidly because their preys in this new environment lacked the ability to defend themselves against the brown tree snakes. For this reason, more than twelve native birds in the Guam Islands went into extinction. They also consumed the natural resources needed for the survival of the native species.

Answer:

Output of nutrients from ecosystems can also occur through surface flow of water and soil erosion. However, loss of nutrients from one ecosystem may represent input to other ecosystems. Output of organic matter from terrestrial ecosystems constitutes the majority of nutrient input into stream ecosystems.

Explanation: