I believee it's the Cretaceous Period?
All of the dinosaur periods are at the start of Earth's timeline, and "the end of life's start" suggests the end of dinosaurs, meaning, when the asteroid hit. So it's probably one of the Mesozoic periods.
The T-rex first appeared in the Cretaceous Period, and the asteroid hit somewhat during middle of the Cretaceous Period.
I hope I'm right, and I hope this helps!
Which were the elements to form in the earliest stage of the universe?
A. Lithium, nitrogen, and carbon
B. Hydrogen , helium , and lithium
C. Carbon , oxygen , and hydrogen
Please let me know
Explanation:
AswerB
hydrogen, helium and lithium
It took 380,000 years for the electrons to be trapped in orbits nuclei forming the first atoms. (which is option B)
Which statement is true about Earth's poles?
A. Only the north magnetic and geographic poles wander.
B. Only the magnetic poles wander
C. The geographic poles both wander
D. The magnetic poles stay in the same place.
Answer: C: They both wander
Explanation: A P E X
*
Replication can best be described as:
1.making new DNA using the old DNA
2.making RNA using DNA
3.making proteins using RNA
4.making proteins using DNA
Answer:
2
Explanation:
DNA splits to make RNA
what is the d/CE between ruminant and non ruminant animals
Answer:
Ruminant animals are animals that chew cud while non-ruminant animals are animals that do not chew cud.
Explanation:
Many cells make and use an enzyme, called catalase, to facilitate the decomposition of hydrogen peroxide (H2O2). The products of the decomposition are hydrogen (H2) and oxygen (O2). What is the effect of catalase on the decomposition of hydrogen peroxide?
Answer: Catalytic effect
Explanation:
Catalyst is a substance which speed up the rate of the reaction occurring inside the body.
The catalase is an enzyme which is responsible for catalyzing the decomposition reaction or break down of the hydrogen peroxide. And all living things exhibit or possess this enzyme. The enzyme catalyzes the decomposition of the hydrogen peroxide into water and oxygen.
is Organic Really Better? Healthy Food or Trendy Scam?
Answer:
It is better
Explanation:
It tastes better :)
And it has no pesticides
Answer:
♡ hi darling ♡
- Organic is great. Infact, I actually eat organic food for a living. Even the oreos are good, they taste better and it's better for you tbh. It helps you be more healthier but your still enjoying it because it's not like celery all day or something.
have a great day.
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧
Classify the sets of bones below as being part of the axial skeleton or the appendicular skeleton.
hands and feet
sternum
skull
hips
ribs
shoulders
arms and legs
vertebral column
Answer:
Hello the correct answers are......
Classify the sets of bones below as being part of the axial skeleton or the appendicular skeleton.
✔ appendicular skeleton = hands and feet
✔ axial skeleton = sternum
✔ axial skeleton = skull
✔ appendicular skeleton = hips
✔ axial skeleton = ribs
✔ appendicular skeleton = shoulders
✔ appendicular skeleton = arms and legs
✔ axial skeleton = vertebral column
Explanation:
just took the test from edge
hope this helps :P
Hii!! (: The correct answers are:
✔ appendicular skeleton - hands and feet
✔ axial skeleton - sternum
✔ axial skeleton - skull
✔ appendicular skeleton - hips
✔ axial skeleton - ribs
✔ appendicular skeleton - shoulders
✔ appendicular skeleton - arms and legs
✔ axial skeleton - vertebral column
How do I calculate the weight/force?
Answer:
Weight = Mass X Gravity w=mg
Explanation:
A mixture in which different materials are easily identified is____
Answer:
heterogenous mixture
Explanation:
What is an example of the lithosphere?
Answer:
Rocky Mountain range in western North America.
Explanation:
Lithosphere is defined as the rock and crust surface that covers the Earth.
The lithosphere is the solid, outer part of the Earth. The lithosphere includes the brittle upper portion of the mantle and the crust, the outermost layers of Earth’s structure. It is bounded by the atmosphere above and the asthenosphere (another part of the upper mantle) below.
Although the rocks of the lithosphere are still considered elastic, they are not viscous. The asthenosphere is viscous, and the lithosphere-asthenosphere boundary (LAB) is the point where geologists and rheologists—scientists who study the flow of matter—mark the difference in ductility between the two layers of the upper mantle. Ductility measures a solid material’s ability to deform or stretch under stress. The lithosphere is far less ductile than the asthenosphere.
There are two types of lithosphere: oceanic lithosphere and continental lithosphere. Oceanic lithosphere is associated with oceanic crust, and is slightly denser than continental lithosphere.
How the Lithosphere Interacts with Other Spheres
The cool, brittle lithosphere is just one of five great “spheres” that shape the environment of Earth. The other spheres are the biosphere (Earth’s living things); the cryosphere (Earth’s frozen regions, including both ice and frozen soil); the hydrosphere (Earth’s liquid water); and the atmosphere (the air surrounding our planet). These spheres interact to influence such diverse elements as ocean salinity, biodiversity, and landscape.
For instance, the pedosphere is part of the lithosphere made of soil and dirt. The pedosphere is created by the interaction of the lithosphere, atmosphere, cryosphere, hydrosphere, and biosphere. Enormous, hard rocks of the lithosphere may be ground down to powder by the powerful movement of a glacier (cyrosphere). Weathering and erosion caused by wind (atmosphere) or rain (hydrosphere) may also wear down rocks in the lithosphere. The organic components of the biosphere, including plant and animal remains, mix with these eroded rocks to create fertile soil—the pedosphere.
The lithosphere also interacts with the atmosphere, hydrosphere, and cryosphere to influence temperature differences on Earth. Tall mountains, for example, often have dramatically lower temperatures than valleys or hills. The mountain range of the lithosphere is interacting with the lower air pressure of the atmosphere and the snowy precipitation of the hydrosphere to create a cool or even icy climate zone. A region’s climate zone, in turn, influences adaptations necessary for organisms of the region’s biosphere.
Answer:
Mountains, fields, rocks, cliffs, etc.
Hope this helps! Have a great day
Explanation:
what significant role does dna play in formation and development of an organism
Answer:
DNA contains the instructions needed for an organism to develop, survive, and reproduce. To carry out these functions, DNA sequences must be converted into messages that can be used to produce proteins, which are the complex molecules that do most of the work in our bodies.
Explanation:
DNA contains the instructions needed for an organism to develop, survive, and reproduce.
What is DNA?
Cells' capacity to store, retrieve, and translate the genetic instructions necessary to create and maintain a live organism is essential to life.
This genetic material is transmitted from one generation of an organism to the next through the reproductive cells of the organism and from one cell to its daughter cells during cell division.
Every living cell contains these instructions as part of its genes, which are the information-containing components that define the traits of a species as a whole and of the individuals within it.
Therefore, DNA contains the instructions needed for an organism to develop, survive, and reproduce.
To learn more about DNA, refer to the link:
https://brainly.com/question/264225
#SPJ2
Shameeka is studying for an exam. She took the notes below about calcium and chlorine, which are known to form ionic bonds.
Calcium, which is a metal, donates 2 electrons to chlorine.
The individual calcium atoms become ions with a negative 2 charge.
The bond between calcium and chlorine makes the atoms stable.
Calcium and chlorine attract each other.
Which best describes Shameeka’s error?
Calcium is a metal, so it donates protons, not electrons.
The individual calcium atom has a positive, not negative, 2 charge.
The bond formed makes the atoms unstable, not stable.
Calcium and chlorine repel, not attract, each other.
Answer:
The individual calcium atom has a positive, not negative, 2 charge.
Explanation:
The error in her study is in the second line of her note which suggests that the individual calcium atoms becomes ions with a negative 2 charge.
When atom loses electrons, it has a net positive charge on it. Not a negative charge. This is because the number of protons is now more than electrons. Therefore, a net charge on the calcium atom will be a positive one. This is her mistake.Answer:
B) The individual calcium atom has a positive, not negative, 2 charge.
Explanation:
Hope this helps. Have a good day!
I will really appreciate if you can tell me the answer
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The pedigree below shows the occurrence of red-green colorblindness in four generations of a family. Use the information in the pedigree to answer the following question.
How many individuals have red-green colorblindness in the four generations shown in this pedigree
Answer:
4
Explanation:
I took the test!!
which of the following is not an acquired trait of a human
Answer:
Acquired traits develop during life (not in your DNA) and answers are below:
Explanation:
Examples:
-Things you learned
(riding a bike, reading, writing, painting, drawing, cooking, school subjects, etc.)
-Things that happened to you
(short hair, broken bone, plastic surgery, dyed hair, etc.)
Hope this helps!
How do we detect the cosmic microwave background radiation?
by looking for radiation at the blue end of the spectrum
through radio telescopes
by looking for a glow in the night sky
through magnifying glasses
Answer:
Through radio telescopes :)
Explanation:
Answer:
through radio telescopes
The following are all examples of changing motion EXCEPT
a
A golf ball stops after rolling up a hill.
b
A race car travels around an oval track at a constant speed of 180 miles per hour.
c
A bowling ball travels in straight line down a bowling alley at a constant 3 meters per second.
d
A ball rolls against a wall and bounces away at 3 meters per second.
Answer:
It is B
Explanation:
I had this on my test last week
Which of the following is the best description of a gene?
O A. A learned behavior
B. A physical or behavioral characteristic
C. A section of DNA that codes for traits
O D. The basic unit of a nucleic acid
Answer:
C. A section of DNA that codes for traits.
First drag pink labels to pink targets to identify the digestive organs. then drag blue labels to blue targets to identify the source of each digestive enzyme or fluid.
Answer:
According to the diagram, the digestive organs on the pink targets includes:
a.) Liver, c) esophagus, d) gall bladder, e)Stomach, I) Small intestine j) Pancreas
The source of each digestive enzyme or fluid on the blue targets includes: b) bile, f) pepsin, g) Intestinal enzymes, h) Pancreatic juice.
Explanation:
The digestive system is the collective name used to describe the alimentary canal, accessory organs and a variety of digestive processes that takes place at different level in the canal to prepare food eaten for absorption.
Accessory organs of digestion generate various secretions which are poured into the tract to aid in the digestion of the food taken. They include: salivary gland, pancreas (secrets pancreatic juice), liver ( secrets bile), gall bladder ( stores bile).
A mitochondrion is having a problem creating enough energy to build new molecules. Which problem most likely exists with the mitochondria
The hydrogen pump may not be functioning properly.
which of the following is identical in a skin cell and a muscle cell from the same individual?
a. cellular shape
b. amount of ATP
c. genetic material
d. cell function
Answer:
C
Explanation:
skin and muscle cells are similar in that they contain the same DNA
I need a Description of the uterus for scientific reasons. But fr pls help me with a description
Which of the following is the source of the carbon in sugar produced during photosynthesis?
A) carbon dioxide
B) water
C) rubisco
D) ATP
15. Each of the following is a density-dependent limiting factor EXCEPT
A. crowding
B. competition
C. disease
D. seasonal cycles
Answer: d, seasonal cycles
Explanation: it doesn't affect the population.
which chemical formula would a drought effect and how?
Answer:
Drought often reduces the sugar content in lignocellulosic biomass, which could have economic impacts, particularly when compounded with ...Explanation:
What is the correct answer?
Answer:
the cart will move right
EXPLANATIONS
BECAUSE OF MORE FORCE
what is the passing of traits from parents to offspring?
which of the following can lower the carrying capacity of a particular area?
Answer:
honestly I think its C smaller organisms .I could be completely wrong so keep that in mind
When two plates slide past each other, what kind of plate boundary is
that?
A.Convergent
B.Divergent
C.Transform
Answer:
C. Transform
Explanation:
A transform plate boundary occurs when two plates slide past each other.
When experiencing oxygen debt, why do human cells not carry out the process of alcoholic fermentation?