Answer:
Revolving nosepiece
Explanation:
The revolving nosepiece (also called the turret) is the part of the microscope we can turn in order to view an object through different objective lenses. Objective lenses, which provide different levels of magnification (usually 4x, 10x, 40x, and 100x), are all attached to the revolving nosepiece. It allows us to switch lenses from those that provide less magnification to those that provide more. This is how we can see more details on an object we're observing.
You can see what this part of the microscope looks like in the image attached below:
Define organic evolution
Answer:
Organic evolution is the theory that more recent types of plants and animals have their origins in other pre-existing forms and that the distinguishable differences between ancestors and descendents are due to modifications in successive generations.
Explanation:
Answer:
Organic evolution is the theory that more recent types of plants and animals have their origins in other pre-existing forms and that the distinguishable differences between ancestors and descendents are due to modifications in successive generations.
Explanation:
What is an example of organic evolution? of Organic evolution produces genetic modifications in a species or inside a cluster of species with time. Examples of this phenomena are Evidence of missing links in Archaeopteryx, wings of birds and insects – analogous organs.
2. Chancroid presents with a genital ulceration that is a) Painless b) Gummata in nature c) Purulent lesion d) Painful
D
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How many muscle types do mollusca have?
Answer:
Mollusca is one of the most diverse groups of animals on the planet, with at least 50,000 living species (and more likely around 200,000). It includes such familiar organisms as snails, octopuses, squid, clams, scallops, oysters, and chitons.
Explanation:
Answer:
i beleive they have 5 in total
An early step in the process of carbon fixation combines three molecules of CO2 with three molecules of RuBP to produce three 6-carbon molecules, which are immediately converted to six 3-carbon molecules. These six molecules are phosphorylated and reduced to produce glyceraldehyde 3-phosphate (G3P). What additional events occur to complete the Calvin cycle
Answer:
release of one G3P to make sugars and regeneration of RuBP
Explanation:
The Calvin cycle can be defined as a part of photosynthesis that utilizes the energy stored by light-dependent reactions to produce three-carbon sugars. The first carbohydrate produced by the Calvin cycle is a three-carbon sugar phosphate called glyceraldehyde-3-phosphate (G3P). Subsequently, G3P is used to produce other sugar molecules such as, for example, glucose. The Calvin cycle consists of three steps: 1-carboxylation (by using CO2 in a reaction catalyzed by Rubisco enzyme), 2-reduction of phosphoglycerate (ATP phosphorylation), and 3-regeneration of ribulose-bis-phosphate (RuBP) by using triose phosphates produced in the first two steps.
If your oxygen levels are too low, your respiration rate would _________.
increase or decrease
Which layer is between the mesosphere and the inner core? (7 points)
a
Asthenosphere
b
Crust
c
Lithosphere
d
Outer Core
Answer:
i think its otter core im not sure
Explanation:
doing the test rn i will be back and say if its wrong or not
Answer:outer core
Explanation:
The bullfrog, Rana catesbeiana, is most closely related to
Answer: It is most related to a spotted chorus frog
I hope this helps, and Happy Holidays! :)
Answer:
The bullfrog, Rana catesbeiana, is most closely related to the spotted chorus frog, Pseudacris clarki Asian flying frog, Polypedates leucomystax.
Do you agree that wild species such as orangutans have the right to exist whether or not they are useful to humans? Explain.
Answer:
Because orangutans live in only a few places, and because they are so dependent upon trees, they are particularly susceptible to logging in these areas. Unfortunately, deforestation and other human activities, such as hunting, have placed the orangutan in danger of extinction.
Explanation:
Hope this helps ;)
Ape like organisms with red coloured hairs that are mammals and belong to the Hominidae family are called Orangutans. They are found in the rainforests and are 1.2 - 1.8 m in height.
To this open question, I don't agree with the statement.
The viewpoint can be explained as:
They have the right to exist even when they are not useful to humans as they play a vital role in the food chain and the ecosystem in which they reside.If Orangutans are withdrawn from the ecosystem then many plant species will be impacted or can vanish.Orangutan helps in seed dispersion and sustain a healthy and balanced condition of the ecosystem.The residents, trees and the ecosystem are interdependent for survival and hence, they cannot be removed.To learn more about Orangutans follow the link:
https://brainly.com/question/3117203
Please help. What safeguards are in place to protect Americans from unsafe food? Are these methods science-based?
Answer: The FDA and USDA cerate food safety programs, safeguards to protect Americans, to protect people from unsafe food. The FDA has monitoring programs for pathogens, naturaltoxins, pesticides, etc.; their methods are science-based.
The safeguards that are placed to protect Americans from unsafe food are FDA and USDA. FDA means food and drug administrator and USDA means U.S. department of agriculture.
What are FDA and USDA?FDA stands for food and drug administrator. It is a health and food department to ensure public health and to check the food items that the citizens are consuming.
USDA stands for The United States Department of Agriculture. The department is responsible for making the laws regarding food quality, and they also develop new qualities of fruits and vegetables.
These departments are based on scientific research and methods. Many scientists work under this to save people from having bad food.
Thus, The FDA and USDA are the safeguards set up to protect Americans from tainted food.
To learn more about FDA and USDA, refer to the below link:
https://brainly.com/question/21469257
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how biofilms improves food quality?
Answer: Biofilms can harbor human infectious agents in the environment, but they also can promote remediation of contaminated groundwater and soils. They assist in metals mining and they play an important natural role recycling matter on Earth.
Hope this helps.... Stay safe and have a Merry Christmas!!!!!!! :D
help please i beg i don’t know
Answer:B, D
Explanation:
When the roller coaster starts flying down the hill, it gains kinetic energy and loses potential energy.
What does the diagram represent
Answer:
I wanna say C but im not sure.
Explanation:
What do cells do with the products produced by cellular respiration?
A.
Carbon dioxide and water can be excreted and the energy is used by the cell.
B.
Glucose and carbon dioxide can be excreted and the energy is used by the cell.
C.
Carbon dioxide and oxygen can be excreted and the energy is used by the cell.
D.
Glucose and oxygen can be excreted and the energy is used by the cell.
Answer:
Ok
Explanation:
I believe the answer is D
Answer:
A
Explanation:
Carbon dioxide and water can be excreted and the energy is used by the cell
Can you please help me I am super stuck
Answer:
a.) 12 Newtons
b.) Same Direction
c.) Unbalanced
Explanation:
The system shows 2 individual forces:
A force of 5 N pulling the box LEFT
A force of 7N pushing the box LEFT
Both forces are LEFT, so they have the same direction.
Since the parallel forces both have the same direction, regardless of whether it's a push or pull or what side of the box the force acts upon, the resultant force will be the sum of the two forces in their direction:
Resultant force's magnitude is then: 5N + 7N = 12N
Resultant force's direction: unchanged = LEFT
Since the resultant force's magnitude is not 0, the system is unbalanced.
The scientific name of a mountain lion is Felis concolor and a house cat is Felis catus. Based on the names, you can determine that these two animals belong to the same: *
1. Complete: Heat and pressure melts ___________ rock and turns it into ____________. When it cools it becomes _________ rock.
2. Igneous rock can be broken down by __________ and the pieces moved around by erosion. The mix of pieces become ___________ rock, such as limestone.
3. The weight and pressure creates heat causing the _________ rock to turn into __________ rock, such as marble.
Answer:
1. Metamorphic, Igneous
2. Weathering, Erosion
3. Sedimentary, Metamorphic
Explanation:
I majored on Biology
Cell walls in plants provide_______
1) Water storage
2) Control of cell function
3) Structural support
Answer:
3.
Explanation:
Plant cell walls primarily provide mechanical support for cells and collectively form the skeleton of the plant.
Answer:
the answer is choice 3
Explanation:
hoped I helped
All changes
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4. If you are measuring distance, which of the following prefixes indicate a unit of measure that is larger than the base
unit (meters)? (Choose all that apply)
mega-
kilo-
centi-
giga-
micro-
nano-
Answer:
mega-
kilo-
giga-
Explanation:
The standard unit of distance is in meters. Distance is the length of path covered by a body.
Only mega, kilo and giga are units that are larger than the base unit of distance which is meters.
Mega is of the order 10⁶
Kilo is of the order 10³
giga- is of the order 10⁹
The prefixes below are submultiples:
centi- 10⁻²
micro- 10⁻⁶
nano- 10⁻⁹
es and Moion Assessment (Luncn)
12of25
While waiting for the bus you take a seat on the metal bench at the bus stop. The bench feels very cold to you. Why? (AKS 7c DOK 2)
A The warmth in your hands is being transferred to the bench via conduction.
OB. The warmth in your hands is being transferred to the bench via convection.
Oc. The coldness of the bench is being transferred to your hands via conduction.
OD. The coldness of the bench is being transferred to your hands via convection.
Answer:
C the answer is def c
Explanation:
In tomatoes, the following hypothetical pathway gives rise to different fruit colors. Y gene R gene Precursor substrate Intermediate substrate Product and lacks color and fruit is and fruit is yellow fruit is red green from chlorophyll Mutations in the genes for both of the enzymes produce lack-of-function, recessive alleles. What would be the expected genotypic and phenotypic segregation ratios if you self-fertilize a RrYy individual
Answer:
Explanation:
From the information given:
The analysis of the hypothetical pathway gives:
Y gene R gene
Green fruit → Yellow fruit → Red fruit.
If RrYy undergoes self-fertilization, the expected genotypic and phenotypic segregation is:
RrYy × RrYy
The progenitors to undergo the segregation are as follows:
RY Ry rY ry
RY RRYY RRYy RrYY RrYy
(red) (red) (red) (red)
Ry RRYy RRyy RrYy Rryy
(red) (green) (red) (green)
rY RrYY RrYy rrYY rrYy
(red) (red) (yellow) (yellow)
ry RrYy Rryy rrYy rryy
(red) (green) (yellow) (green)
Thus; the expected phenotypic ratio is:
= 9(red) : 3(yellow) : 4(green)
The expected phenotypic ratio is:
= 1(RRYY): 2(RRYy): 2(RrYY): 4(RrYy): 1(RRyy): 2(Rryy): 1(rrYY): 2(rrYy): 1(rryy)
Determine which of the following choices is the best match for the questions that follow: A. Whole-organism Vaccine B. Subunit Vaccine C. Toxoid Vaccine D. Experimental Vaccine
Answer:
Experimental Vaccine Herpes Vaccine = D
Attenuated = B
Purified macromolecule Vaccine = B
Recombinant-Vector Vaccine = A
Inactivated or Killed = C
Diphtheria Vaccine = A
Explanation:
A Vaccine is an organic arrangement that gives dynamic obtained invulnerability to a specific irresistible infection. A Vaccine ordinarily contains a specialist that takes after a sickness causing microorganism and is frequently produced using debilitated or executed types of the organism, its poisons, or one of its surface proteins. The specialist invigorates the body's safe framework to perceive the specialist as a danger, pulverize it, and to additionally perceive and decimate any of the microorganisms related with that specialist that it might experience later on.
Vaccines can be prophylactic (to forestall or enhance the impacts of a future contamination by a characteristic or "wild" microorganism), or therapeutic (to battle a sickness that has just happened, for example, cancer).
The administration of Vaccine is called vaccination. vaccination is the best strategy for forestalling irresistible sicknesses
please answer quick and honestly, will choose brainliest. 16 points
How can you use isobars to determine approximate wind speed and direction using the pressure map?
Answer:
Since variations in air pressure drive the winds on Earth, isobars also give meteorologists an easy way to assess wind direction and speed. Closely spaced isobars indicate large pressure changes over a small area, causing wind speeds to increase.
Hope this helped! :}
NEED HELP WITH HOMEWORK!!!
The mutation that causes sickle cell is:
1. deletion
2. Addition
3. substitution
4.Unpoint
In 1859, when Darwin published "On the Origin of Species by Natural Selection", which argument was he explaining?
A) An explanation for the change in types of minerals in an area through ecological
succession.
B) The reasons for the loss of biodiversity on all habitats on Earth.
C) An attempt to explain the structural similarities observed among diverse living
organisms.
D) The effect of carrying capacity on the size of population.
Help with this please
Which of the following is a peptide bond?
A.C-H bond
B.N-H bond
C.C-C bond
D.C-N bond
Answer:
The correct answer is - D.C-N bond
Explanation:
A chemical bond is formed between the carboxyl group of an amino acid to the amino group of the other amino acid and release a water molecule. It is a dehydration synthesis reaction.
So, the peptide bond normally formed by the reaction between amino acid from C1 of one amino acid molecule and N2 of the other amino acid molecule.
So the peptide bond that formed by this reaction is involve bonding of C-N bond.
what are three of the human body's defensive barriers and how do they keep the human body healthy
Oftentimes, when a plant dies, the caretaker may
claim they must have a "black thumb" because they
can't keep plants alive. They make sure the plants
get light and water and are insect-free but plants just
don't survive. What might be the problem?
Answer:
233
Explanation:
772
What are the electrical charges of a proton, neutron and electron?
Answer:
Protons are positive while nuetrons are negetive.
Expland nation:
describe chalenges related with a molecular clock
Answer:
Issues with the Molecular Clock
Though most changes occur at a constant rate, the rate of change may vary in different genes, at different times, and among different organisms.
Explanation:
Issues with the Molecular Clock
Though most changes occur at a constant rate, the rate of change may vary in different genes, at different times, and among different organisms.
Which statement did Virchow's work add to the cell theory?
A. Cells contain genetic material that consists of DNA.
O B. The cell is the basic structural and functional unit of life.
O C. All living things are made of one or more cells.
O D. All cells come from other living cells.
Answer:
D
Explanation:
The German doctor Rudolf Virchow proposed that all cells result from the division of previously existing cells, and this idea became a key piece of modern cell theory.
This results from cytokinesis when he observes cells splitting into two.
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