Answer:
La energía de fusión es la fuente de energía del sol y las estrella, la fusión es un proceso que ocurre dentro del sol, por esta razón la luz que vemos y el calor son el resultado de una reacción de fusión.
The electrical impulse of the heart normally begins at the:.
Answer:
SA node (sinoatrial node)
Explanation:
SA node (sinoatrial node) – known as the heart's natural pacemaker. The impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node. The electrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles.
1. Briefly explain how multicellular organisms can develop from a single cell:
Answer:
Plants, animals and fungi are the most spectacular and complex achievements of this kind. There are essentially two ways to make a simple multicellular entity out of single cells: either a single cell divides and its offspring stick together, or several solitary cells aggregate to form a colony
Explanation:
The two basic types of white blood cells are?
Answer:
Myeloid cells (myelocytes) include neutrophils, eosinophils, mast cells, basophils, and monocytes.
Explanation:
Short answer myeloid cells and monocytes
When you're old enough to vote, will you be influenced by celebrity endorsements ? Why or why not?
Celebrity endorsers can influence the portion of the public (increasingly small) who otherwise do not have strong candidate preferences and pay so much attention to politics. If the celebrity has huge interest and knowledge of politics so i may get influenced.
When was celebrity endorsement started in United states?Celebrity endorsements in the U.S. were started in 1920, precisely a hundred years ago, with film stars publicly supporting candidate Warren G. Harding in the presidential election. From then on, many other celebrities raised their political opinions among their fanbase for electoral candidate.
Celebrities themselves, by making an endorsement may risk losing a share of their audience and inviting public joke and anger.
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Why do we soak a seed in water before sowing in the soil?
Answer:
we do it to select the best seeds
the seeds floating on the top are bad seeds which are empty inside
the seeds that are on the bottom are good seeds they are heavy
A ________________ is the rod shaped part of a cell that carries the genes.
Question 2 options:
cell membrane
chromosome
phenotype
genotype
Answer:
The rod-shaped structures in the cell nucleus that contain genes are called chromosomes.
"Helicopter" seeds called samaras are produced on maple and ash trees. How are these seeds dispersed?
O eaten and excreted by animals
O carried by water
O carried by wind
O transported by pollinators
How does a nuclear reaction compare to a chemical reaction?
Answer:
Nuclear reactions involve a change in an atom's nucleus, usually producing a different element
Explanation:
Chemical reactions, on the other hand, involve only a rearrangement of electrons and do not involve changes in the nuclei. Different isotopes of an element normally behave similarly in chemical reactions.
what are the importance of biology? give any two point
Answer:
helps us understand the living world and the ways its many species (including humans) function, evolve, and interact.
Explanation:
what do chromosons form from
Answer:
DNA wraps around proteins called histones to form units known as nucleosomes. These units condense into a chromatin fibre, which condenses further to form a chromosome.
Explanation:
Have a good day Btw dont worry bout my name
which is the primary source of energy for most cells in the body
What are disadvantages of line breeding?
Answer:
Line breeding can accomplish several goals: 1) produce a more consistent and uniform offspring; 2) identify breeding populations that have no genetic flaws, or identify existing flaws so they can be eliminated; 3) accentuate and sustain more consistent excellence; 4) develop linebred progeny that will provide :]
The images stored on microfilm and microfiche are so large that they can be read without a microfilm or microfiche reader. Group of answer choices True False
The images stored on microfilm and microfiche cannot be read without a microfilm reader : i.e. statement in the question is False
What is a microfilm ?A microfilm is film which contains photographic records stored in a small scale order than the natural scale of a graphic/printed matter. Images stored on microfilm and microfiche are so small that a microfilm or microfiche reader is required to read them.
Hence we can conclude that statement in the question is False.
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An object is placed in an electric field. the object is not affected by the electric field. the strength of the electric field is then increased. what can be said about the object?
Answer:
neutron
Explanation:
In fact, a particle is affected by an electric field only if it is electrically charged. The neutron is electrically neutral (its charge is zero), so it does not interact with the electric field.
Answer:The object does not carry a charge.
Explanation:
Why is it important to maintain the biodiversity and health of australia’s great barrier reef?.
Answer:
The Great Barrier Reef's biodiversity
Maintaining a healthy and diverse Great Barrier Reef ecosystem is important so it is better able to withstand, recover and adapt to impacts and stress. A productive and healthy Reef environment provides essential resources such as fish and prawns and supports many industries
What is the function of the placenta?
It covers the cervix.
It protects the vagina.
It nourishes the embryo.
It fertilizes an egg.
Answer: It nourishes the embryo.
Explanation:
The placenta's main purpose is to nourish the embryo. It helps to provide oxygen and nutrients to the embryo. The placenta is an organ that develops during pregnancy.
A young child has a middle ear infection: otitis media. There is a build-up of fluid, bacteria, and white blood cells, or pus, inside of the middle ear chamber. Why has this affected the child's hearing
2. Why does Grover Norquist disagree with Reihl's statement? [class is eco-fe]
What phenotypes are possible for the turtles?
Answer:Reptile
Explanation:im not sure
How can scientists determine the relative age of the fossil?
Answer:
Radiometric dating methods
Explanation:
Geologists usually use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon to find the age of fossils.
Which is NOT an example of electromagnetic radiation?
a. radio waves
b. X rays
c. gravity
d. visible light
Answer:
Electromagnetic spectrum consists of radio waves, microwaves, infrared waves, visible spectrum, ultraviolet waves, X-rays and gamma rays. It does not include alpha rays.
Which factors determine whether a cell is G0
Answer:
A period in the cell cycle in which cells exist in a quiescent state. GO phase is viewed as either an extended G1 phase. Which factors determine whether a cell enters G0? It depends on the organisms stage in development. It is the phase of the cell cycle during which a cell is neither dividing nor preparing to divide. During this period the cell performs regulatory and its basic cellular functions. The cell cycle typically refers to the process by which the cell can grow and repair itself.
Explanation:
Who invented computer??
Answer:
Charles Babbage
Explanation:
English mathematician and inventor Charles Babbage is credited with having conceived the first automatic digital computer. During the mid-1830s Babbage developed plans for the Analytical Engine.
Answer:
English mathematician and inventor Charles Babbage is credited with having conceived the first automatic digital computer. During the mid-1830s Babbage developed plans for the Analytical Engine.
Chris wrote a few steps to describe how carbon circulates between the ground and living organisms.
Step 1. Plants absorb carbon dioxide in the air through photosynthesis.
Step 2. Dead plants are broken down by decomposers.
Step 3. Carbon stays in the ground for long-term storage as fossilized carbon.
If step 1 is removed, which statement best describes the effects of this missing step on the carbon cycle?
A. More carbon is stored in plants for long-term storage.
B. Less carbon is available for long-term storage in the ground.
C. Less carbon is stored in atmosphere instead of plants.
D. There are more fossil fuels available for energy use.
Answer:
B. Less carbon is available for long-term storage in the ground.
Explanation:
because then the carbon stays in the ground
Answer:
B. Less carbon is available for long-term storage in the ground.
Explanation:
If plants do not remove carbon from the air, it stays in the air and does not end up as fossilized carbon in the ground.
Please answer ASAP!!!
What are five ways to help keep groundwater clean?
Five ways to keep Ground Water Clean!
Purification
Less Littering
Less pollution
Less gas around water areas
Cleaning up around your local area
Some resources are not readily available for conversion to energy. Which choice below would MOST likely limit the amount hydroelectricity that can be produce and used in the area?
A- Sunlight
B-Wind
C-water
D-biomass
The amount of water is MOST likely limit the amount hydroelectricity that can be produce and used in the area.
What is hydroelectricity?Hydroelectricity is the electricity which is generated from the water.
Hydroelectricity converts the kinetic energy of moving water current to electrical energy in a dynamo.
Therefore, the amount of water is MOST likely limit the amount hydroelectricity that can be produce and used in the area.
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Mitosis is a form of cell division in which one cell divides into two new cells. Each new cell has the same number of chromosomes as the original cell.
In which of the following processes does mitosis play a vital role?
Answer:
growth
Explanation:
as the living organism grow, it's as a result of cell division
Answer:
dividing the number of cells into four daughter cells
Which word has a stronger connotation than the word mad? (1 point)
O upset
O alert
Ofurious
O disappointed
Answer:
Furious,
Explanation:
it has to be furious because, if you are disappointed, alert, or upset, then you could be mad but you aren't really more than mad.
This is why I chose furious.
ype of species
Critically endangered (%)
Endangered or vulnerable (%)
Plants
13
70
Invertebrates
0
35
Freshwater fish
9
37
Amphibians
7
30
Reptiles
5
28
Birds
0
12
Mammals
2
21
Answer:
Explanation:
ype of species
Critically endangered (%)
Endangered or vulnerable (%)
Plants
13
70
Invertebrates
0
35
Freshwater fish
9
37
Amphibians
7
30
Reptiles
5
28
Birds
0
12
Mammals
2
21
