Answer:
A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions. Shared electrons located in the space between the two nuclei are called bonding electrons. The bonded pair is the “glue” that holds the atoms together in molecular units.
Answer:
A covalent bond forms when the difference between the electronegativities of two atoms is too small for an electron transfer to occur to form ions. Shared electrons located in the space between the two nuclei are called bonding electrons. The bonded pair is the “glue” that holds the atoms together in molecular units.
Explanation:
What would be the result if crossing over did not happen during meiosis in humans?
Answer:
A lack of genetic variation in offspring
Scientists have found mesosaurus fossils (a prehistoric reptile) on the
each coast of South America and the west coast of South Africa. These
areas are now an ocean apart! Even though we know this animal could
swim, does the presence of mesosaurus fossils in two places support
Wegener's theory of continental drift? Explain your answer.
Answer:
Explanation:
It does not support Wegener's theory of continental drift. Africa and South America were the part of a same land mass at one time, which then got separated into two different land forms called North America and South America and drifted to different locations other than the one from where they originated. This occurred due to continental drift. The evidence of this phenomena can be observed in fossils that were found to be same in both land forms. This depicts that same type of organisms were living in both land forms. Hence, gives the evidence that land forms were related.
Based on the arrows, what does the image represent? Air masses are barely moving. Air masses are colliding with each other. Jet streams are forming in the upper atmosphere. Weather conditions are remaining steady and unchanged.
Answer:
2-Air masses are colliding with each other.
Explanation:
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From the image given below its clear that the warm is rising upwards and as a result of the collision from the cold winds or front from below, hence the development of clouds that make the thunderstorms appear.And a result of this turbulent the rising air is pushed and the warm front cycle takes a turn and will lead to either development of cyclone or rainfall.Which atom is involved in giving your heart energy to beat?
carbon
O gold
o oxygen
Tron
Answer:
hello
Explanation:
your answer of this question is oxygen
Answer:
OXYGEN!!
Explanation:
Oxygen is involved in giving your heart energy to beat.
Describe at least two of the four major systems we looked at in class: Ice, Water, Land, Atmosphere and
provide a specific example of how these systems are connected to one another
What are two kinds of molecules that make a good model of a solid dissolving in a liquid?
Answer:
In the simplest case it involves mixing two materials together. The most common examples of dissolving involve a solid and a liquid, usually water. When a solid dissolves the solid (solute) and the liquid (solvent) form a very close intimate mixture called a solution.
Explanation:
examples.
Protein
a. Long term energy storage and
heat insulation (keep warm)
Carbohydrate
b. Make up the cell wall (Cellulose)
and short term energy
Lipid
c. Store genetic information
DNA
d. Speed up the rate of chemical
reactions with enzymes
NOTES Definitions:
Answer:
cellulose is the answer
Explanation:
carryonleanring
why might it be important to know a person's lung capacity?
Answer:
Explanation:
I would talk about how lung can help dictate someones physical condition, and the shape that their lungs are in. (dictate VO2 max, etc.) it can also tell yo u whether someone is severely out of shape, a smoker, in very good shape, a runner, etc.
1.what is considered as the building block of nature? ____________
2.are all cells multicellular? support your answer.___________
3.give an example of unicellular organism._____________
4.differentiate a unicellular organism from a multicellular organism._________________
5.can there be tissues,organs and systems without cells? support your answer._____________
PLEASEEEE HELPPP ME ! I NEED HELPP!
Answer:
an a era
Explanation:
i dont know which era some point in time
The largest layer of Earth is
O outer core
O mantle
O crust
O inner core
Answer:
mantle
Explanation:
Describe two pieces of evidence that support the hypothesis that an asteroid impact was
responsible for the iridium anomaly.
Answer:A dust cloud from an asteroid impact would have killed marine plants requiring uninterrupted sunlight, but many were unaffected. The iridium deposits may have been spewed by volcanoes. ... The Chicxulub structure may be a volcanic sequence of late Cretaceous age, not an impact meltsheet of Cretaceous-Tertiary age.
Explanation:
there
Which statement best describes how a catalyst can speed up a chemical reaction?
The catalyst decreases the activation energy needed.
The catalyst increases the concentration of products.
The catalyst binds to enzymes to release substrates.
The catalyst increases the concentration of reactants.
Explanation:
The catalyst decreases the activation energy needed.
Catalyst can speed up a chemical reaction by decreasing the activation energy needed. Thus option a is correct.
What is catalyst?Catalyst is defined as a material that allows a chemical process to happen under new circumstances or at a typically faster rate.
It can also be defined as an additive ingredient that can speed up a reaction without being consumed during the process.
There are basically four types of catalyst.
Homogenous catalystHeterogenous catalystHeterogenized homogenous catalystBiocatalystNickel, When making margarine out of palm oil, Ni is employed. In the Haber process, iron (Fe) is employed etc. are some of the example of catalyst.
Thus, catalyst can speed up a chemical reaction by decreasing the activation energy needed. Thus option a is correct.
To learn more about catalyst , refer to the link below:
https://brainly.com/question/12260131
#SPJ6
__________independent cells begin to form during ______________________________.
Answer:
its 2 and telephase 1
Explanation:
HELP
13 POINTS
How do we know what animals from millions of years ago look like?
fossils!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
why is it important for environmental scientists to have a background in many fields of study
Answer:
With these rapid changes, there is a need to study each step that may alter the environment so that the natural ecosystem may still be protected or replaced by a better one. Environmental science is important to save our world from destruction. Because of man's abusive actions, the environment is not safe anymore.
plssss help i will mark brainliest
Answer: 1, 3, 5, and 6
Explanation:
Answer:
DNA and Cytoplasm all cells have both in common
Which sequence correctly indicates the branching pattern of the human respiratory system?
A) trachea bronchi bronchioles alveoli
B) trachea bronchioles bronchi alveoli
C) alveoli trachea bronchioles bronchi
D) alveoli bronchioles trachea bronchi
Answer:
A
Explanation:
The system including tissues and organs needed for breathing and exchanging gases is called the respiratory system. It is essential for providing fresh air and eliminating the waste air from the body.
The branching pattern of the human respiratory system includes option A) trachea bronchi bronchioles and alveoli.
The Respiratory system can be explained as:The respiratory system includes the major organ lungs which along with some other tissues makes up the whole system. The trachea gets diverged into two branches named bronchi which further splits into lungs called bronchioles.The bronchioles spread throughout the lungs and have a sac-like small structure on its end called alveoli where the exchange of gases takes place.Therefore, option A is the correct sequence of respiratory branching.
Learn more about the respiratory system here:
https://brainly.com/question/1621897
Plz help!!?? Due today
Answer:
6) unicellular means organisms contains one cell while multicellular means organisms contain more than none cell.
7) Each cell have different organells that carry different functions. For example, a cell have a organell named nucleus and its function is to store DNA
8) eukaryotic meas organisms with many cells aka are multicellular and prokaryotic means organism with single cells aka are unicellular.\
9) bunch of tissues together forms organs. and bunch of organs together forms organ system
Explanation:
What stage of photosynthesis uses
carbon dioxide to make glucose?
A. Light reactions
B. Calvin Cycle
C. ATP synthesis
D. Cellular respiration
Answer:
Calvin Cycle
Explanation:
The Calvin cycle takes over where the light reactions end. It uses chemical energy stored in ATP and NADPH (from the light reactions) and carbon dioxide from the air to produce glucose, the molecule that virtually all organisms use for food.
what is the car's acceleration from 0 to 1 second
Answer:
What do you mean?
Explanation:
Explain what asexual reproduction is, using a spider plant as an example.
Answer:
the person is correct who answer that question
If the initial population is 100, and the growth rate is 0.3, what will the population be at t
= 9?
Answer:
≈ 1060.45
Explanation:
You would use the exponential growth formula:
[tex]y=a\left(1+r\right)^{x}[/tex]
[tex]y=100\left(1+0.3\right)^{9}[/tex]
[tex]a =[/tex] initial value
[tex]r =[/tex] growth rate
[tex]x =[/tex] time interval
please help. me there is 8 questions plz
Answer:
1. c , 2.b, 3.a, 4.a, 5.c, 6.a, 7.c
Define evolution and determine the mechanism behind it
What are some Characteristics of a ladybug before metamorphosis
Answer:
.
Explanation:
Ladybug larvae look somewhat like tiny alligators, they have elongated bodies and bumpy exoskeletons. Though in many species, the ladybug larvae are black with brightly colored spots or bands.
Which of the following is/are characteristics shared by most animals?
Asexual reproduction
Heterotrophic eukaryotes
All have radial symmetry
All have DNA outside of the nucleus
How did the temperature relate to the “recommended temperature limit” (solid horizontal red line)?
Someone please just explain this question
Answer:
The “recommended temperature limit” indicates limit of the temperature that is good for our world.
Explanation:
The temperature related to the “recommended temperature limit” means that in the graph there is a limit of temperature for our world's environment. if the temperature is between this limit, there is less or no adverse effect on our environment while on the hand, if the temperature exceeds from this limit, then it adversely affected our world because the concentration of carbondioxide gas in the atmosphere increases due to this increase temperature..
have you ever heard that a potato is a starchy vegetable? starch is a carbohydrate like the sugars, glucose, sucrose and lactose. how did this plant form the starch that is in the potatoes?
Answer:
co2
Explanation:
Clownfish often live inside of
a sea anemone. The clownfish are
provided with shelter and feed on the sea anemone's leftovers as they
swim among its tentacles. The clownfish also scares off predator fish
from the sea anemone.
Answer:
Mutualistic
Explanation:
Both parties benefit