which of the following is an object used in relative dating
A-Carbon 14
B-Daughter Isotope
C-Index Fossil
D-Parent Isotope
i know for sure it’s not A
The object that is used in relative dating is Index Fossil. Thus, option C is correct.
What is Fossil records?
Fossil records are described as the position of found fossils all through the surface or the layers of the earth. The older the fossils are, the deeper it is found. Fossil records are also considered to be gathered information about the total number of the discovered fossils and the data obtained from them.
Fossil records are important guides to determine how life existed before. If you are to assemble a fossil, you will be able to see and tell the evolutionary changes that happened over the past years. Fossil records are evidences pointing out that life before is totally different from now.
Index fossils are fossils that are common yet were only present for a brief time. By comparing a rock layer to other rock layers, index fossils enable scientists to determine the relative age of a rock layer. Organisms that are still alive today yet have undergone little alteration over millions of years are known as living fossils.
Therefore, The object that is used in relative dating is Index Fossil. Thus, option C is correct.
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What did astronauts take from
the moon?
bits of dust
rocks
bits of dust and rocks
2. Which of the following is a physical property of matter that is always the same regardless of size
or amount?
A. Mass
B. Volume
C. Density
D. Solubility
HELP
Answer:
A
Explanation:
Since the law of conservation of mass is valid under all circumstances, hence, mass always remains the same, whether a substance undergoes physical change or chemical change
16. In which of the following situations are the phenotypes of F2 offspring expected to follow
the ratio of 9:3:3:1?
a. monohybrid cross for two unlinked traits
b. a monohybrid cross for two closely linked traits
c. a dihybrid cross for two unlinked traits
d. a dihybrid cross for two closely linked traits
Answer:
C
Explanation:
The F2 offspring of a cross would follow the ratio of 9:3:3:1 only if the cross is a dihybrid for two unlinked traits.
There is nothing like a monohybrid cross for two traits. A cross involving two traits is a dihybrid cross. Hence, options a and b are out of the equation.
A dihybrid cross for two closely linked traits would produce F2 offspring in another ratio that is different from 9:3:3:1 depending on the linkage map.
Hence, the correct option is C.
If the cell cycle lasts 36 hours and mitosis takes 25% of the cell cycle, how many hours will the cell be in mitosis?
Traits of organisms are a direct result of two factors: 1) the genetic material present in previous generations and 2) the type of reproduction, sexual or asexual. Which of the following is true of cellular division? *
a. Meiosis is cellular division for and sexual reproduction.
b. Asexual reproduction requires mitosis for cellular division.
c. Mitosis is cellular division for asexual and sexual reproduction.
d. Sexual reproduction requires mitosis for cellular division.
Answer:
it A
Explanation:
Answer:
Its A
Explanation:
Lol bc someone else put it!! And also I got the answer right!
Plz help me I'll give branly stuff. plzzzzz
Answer:
The answer is B
Which level of organization is formed when a group of organs work together to perform complex functions?
Molecule
Organ
Organ system
Tissue
Answer:
Organ system is the correct answer, i took the test and passed.
( trust me ;)
Explanation:
Please give me brainlyest
I hope this helps
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Answer: i think it is the 3rd one but i am not sure
Explanation: hope you pass the exam :)
i need help plz plz plz plz plz plz
Answer:
We need a pic to help you.
Explanation:
A poodle and a Labrador can mate and have a offspring.
What is it about these dogs that is true?
(A) They have different scientific names.
(B) They belong to the domain Archaea.
(C) They are members of the same species.
(D) They are different genus
Answer:
The answer is C they are members of the same species.
A) it isn't correct because they are both the same species which means the same scientific name
B) wasn't even close to being correct, Archaea is part of Prokaryotes which doesn't have a nucleus and they reproduce asexually meaning only one which is making their own offspring that we call clones
D) isn't correct because genus is the same as species
Hope this is correct :)
Answer: The answer is C they are members of the same species.
Explanation:
Which of the following is a chemical reaction?
A. Water freezes.
B. Sugar dissolves in water.
C. Salt and pepper are mixed in a dish.
D. Iron rusts.
Answer:
i think it is d
Explanation:
sorry if wrong
Answer: D. Iron rusts
Explanation: Rust is made from different chemicals in the air that come in contact with said metal. That could be acidic rain for example. Water freezing is only changing temperature. Sugar dissolving is breaking down molecules. Salt and pepper mixed in a dish is a physical change (also that's just plain evil to some people but that isn't the point). Your answer will be D. Iron rusts.
Hope this helps!
Whats number 9 and 10? It’s okay if you only do one..please help..
Equations for help:
K= C + 273
C= 5/9 (F - 32)
F= (C * 9/5) + 32
Answer:
9) 75.2°F is less that 82°F so the water is not warm enough for Emma to swim in.
10)Since, 102.2°F is greater than 100°F, Stephen can't go to school today.
Explanation:
9) First, we want to find out 24°C converted to Fahrenheit
What we want to find Equation
24°C = ?°F F= (C * 9/5) + 32
Second, we have to input our number into our equation
F = (24 × 9/5) +32
Next, we have to use the PEMDAS strategy (ask in the comments if you don't understand!)
24 × 9/5 =
24 × 9 = 216 216÷5 = 43.2
1 × 5 = 5
Now, we can't forget to add 32!
43.2 + 32 = 75.2°F
24°C = 75.2°F
75.2°F is less that 82°F so the water is not warm enough for Emma to swim in.
10) For this problem, I'm going to just show the math, so if you have any questions feel free to ask in the comments!
Step 1) 312 = C + 273
-273 -273
Step 2) 39 = C or C = 39
Step 3) F = (39 × 9/5) + 32
Step 4) F = (351/5) + 32
Step 5) F = 70.2 + 32
Step 6) F = 102.2
Since, 102.2°F is greater than 100°F, Stephen can't go to school today.(and should think about getting a regular thermometer ;)
Hope this Helps! :)
Have any questions? Ask below in the comments and I will try my best to answer.
-SGO
Which of the following statements describes the relationship between DNA and genes?
a, Genes and phosphates make up the backbone of DNA.
b, DNA and genes are passed on from offspring to parents.
c, Genes are segments of DNA
d, DNA is found in cells, whereas genes are outside of cells.
Answer:
DNA and gesnes and a great time at the end result is a great day to be a great
Explanation:
cells outside and from the bottom of the year and a half years of age and the other day and I have a great day to be a great day to be a great day to be a great day for me and I am a very happy to see the new album and a great
The statement which best describes the relationship between DNA and genes is that Genes are segments of DNA. Thus, the correct option for this question is C.
What is DNA?DNA stands for deoxyribonucleic acid. It may be defined as a type of molecule inside cells that contains the genetic information responsible for the development and function of an organism. These molecules allow this information to be passed from one generation to the next.
DNA is responsible for building and maintaining your human structure. While Genes are segments of your DNA, which give you physical characteristics that make you unique. Together, your body has a complete instruction manual that tells your cells how to behave.
Therefore, the statement which best describes the relationship between DNA and genes is that Genes are segments of DNA. Thus, the correct option for this question is C.
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Which blood component fights and destroys disease-causing bacteria and
viruses?
Answer:
white cells
Explanation:
if an object is 3 AU from the sun, it is
Answer:
That probably refers to asteroids.
Explanation:
There is a large belt of asteroids between the orbits of Mars and Jupiter.
Help me I’ll give 50 points helppp!
Answer:
2 Refraction, Transition/bouncing?
7. Opaque, absorbs
Explanation:
PLZ ANSWER !!! DUE TODAY!!!!
what do molecules and ions move with in passive transport ?
Answer:
Also called facilitated transport or passive-mediated transport, facilitated diffusion occurs when molecules or ions are processed through spontaneous passive transport. The ions and molecules are moved across a biological membrane through certain transmembrane integral proteins.
Explanation:
There ya go!! Brainliest plss!! :))))
What is the first step in Respiration called?
Glycolosis
Kreb Cycle
Electron Transport Chain
Light Reaction
Dark Reaction
All the above.
The first step in Cellular Respiration is called Glycolosis, it takes place inside the cytoplasm. Within this step, enzymes split apart a molecule of some glucose into two molecules of pyruvate, which releases some energy that is transferred to ATP. (Adenosine triphosphate)
Therefore, your answer is A.
Compare and contrast chromosomes and gene
Answer:
Genes are segments of deoxyribonuceleic acid (DNA) that contains the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contains a person’s genes. Genes are contained in chromosomes, which are in the cell nulecus.
Explanation:
Answer:
quick answer
Explanation:
Both genes and chromosomes are inherited from our parents. Genes are like the instruction manual that put us together. They determine our biological predisposition. Chromosomes are the structures that contain our genes, but unlike genes they also determine gender. Chromosomes are made up of two tightly-wound sister chromatids.
NEED HELP WITH THESE 4 QUESTIONS WILL GIVE BRAINLIST!!!
1.What were some characteristics that the finches developed to give them an advantage in surviving?
2.How do you think that the one species of finch evolved into many different species, each with its own advantages?
3. In what ways do these advantages help the finches to survive and reproduce?
4. What might have happened if the finches didn't evolve into many different species?
Answer:
1. Because the drought reduced the number of seeds and finches with bigger beaks were able to eat the larger and harder seeds so more of them survived.
2. Summary: Changes in the size and form of the beak have enabled different species to utilize different food resources such as insects, seeds, nectar from cactus flowers as well as blood from iguanas, all driven by Darwinian selection
3. Medium ground finches with larger beaks could take advantage of alternate food
4. three species of Darwin's tree finches have been known to inhabit Floreana but no birds singing that song on Floreana have been heard in many years.
Explanation:
please help me.
the options are:
potential energy
chemical energy
gravitational PE
electrical energy
kinetic energy
nuclear energy
thermal energy
radiant energy
Answer: stored E = potential E. E to move = kinetic E. E due to height = gravitational PE. Electron = electrical E. Food, fuel = chemical E. Heat = thermal E. EM radiation = radiant E. Nucleus = nuclear E
Explanation: self-explanatory
There are multiple lines of evidence that provide support for common ancestry and evolution. Write 3-4 paragraphs
describing at least three of them in detail. Provide at least one example for each line of evidence.
<< Read Less
Answer:
Determining a substance's physical or chemical identity. What are the two main requirements for identification? The adoption of testing procedures that give characteristic results for specific standard materials and the number and type of tests needed to identify a substance to exclude all other substances.
Answer:
Here's a better answer. I know its late though.
Explanation:
There are multiple lines of evidence that provide support for common ancestry and evolution; this would be homologous features of anatomy and embryology and fossil records.
In comparative anatomy, there are many similarities between species because all life is related. Homology is similarities seen because of the ancestry of features or genes in an organism. Similarities can show descent from common ancestors and similarities can be seen in body structures, development, and DNA. Homologous structures are similar traits found in two different species that are the result of having a common ancestor. These structures are similar but may have different functions. An example of this might be the homologous structures in the limbs of humans, cats, whales, and birds. And then there are analogous structures, which similarly is that the structure of different species are similar because the trait is advantageous, not because they are related. An example of this is sharks and dolphins having similar fins. Along with anatomy is Embryology. Different species can have similar embryos because they come from a common ancestor. They may start with the same developmental plan but change drastically as they grow up. An example of this is seen in the early stages of development between fish and chicken embryos.
Next up, the fossil record provides evidence that supports common ancestry and evolution. The fossil record provides us with visual evidence for evolution. The fossil record directly allows us to pinpoint if there are any similar structures amongst organisms and see if there are any vestigial structures from ancestors that remain in organisms that still roam today. The fossil record depicts evolutionary change over the past four billion years, which can be seen through transitional forms, increasing complexity of life, and geographical distribution. Transitional forms are fossils that show intermediate states between an ancestral species and its evolutionary descendants. Increasing complexity is seen as life on earth becomes more complex. That and geographic distribution which has been studied closely and found that the continents have moved over time and that the fossil record reflects this movement. Fossils of different animals can be found on different continents around the world due to continental drift.
9. The Sun's outward pressure of radiation is balanced by an inward pressure provided by
gravity
O fusion
fission
oxidation
Anyone know I’m confused
Answer:
the correct option is
A. All plant cells have at least one vacuole but only some animal cells have vacuole
Answer: C
Explanation:
All have them, although they vary in size and function
how has selective breeding contributed to a wide variety of dog breeds?
Answer:
In the same way that inbreeding among human populations can increase the frequency of normally rare genes that cause diseases, the selective breeding that created the hundreds of modern dog breeds has put purebred dogs at risk for a large number of health problems, affecting both body and behavior.
Which of the following would most likely be reduced when combined with Al(s)?
Will be giving brainliest
Answer:
A
g
+
- oxidising agent
K
- reducing agent
C
l
2
- oxidising agent
Explanation:
A
g
+
- oxidising agent (most likely form Ag by gaining an electron)
K
- reducing agent (most likely form
K
+
by losing an electron)
C
l
2
- oxidising agent (most likely to form 2
C
l
−
by gaining electrons)
This is based on what is likely, not so much that the above are known to be oxidising or reducing agents.
The most likely option to be reduced when combined with Al(s) is Fe (iron). Therefore option C is correct.
Reduction refers to the gain of electrons by a chemical species. In this case, we are considering the reduction of ions when combined with solid aluminum (Al(s)).
Aluminum (Al) is more reactive than iron (Fe) in terms of its electrochemical properties. When aluminum reacts with certain metal ions, it tends to displace those ions and undergo oxidation itself. This process is known as a displacement or redox reaction.
Fe (iron) is less reactive than aluminum and can be displaced by aluminum in certain redox reactions. Therefore, it is the most likely option to be reduced when combined with Al(s).
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structures in the cell
A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm. Within the cytoplasm lie intricate arrangements of fine fibers and hundreds or even thousands of miniscule but distinct structures called organelles.
Please help you’d be a life save :) and please hurry if you can it’s due at 11:59 today right now it’s 1:55
Which of these is thickes layer of earth
Answer: core
Explanation:
The core is the thickest layer of the Earth, and the crust is relatively thin, compared to the other layers.
an example of a community
Answer:
Community, also called biological community, in biology, an interacting group of various species in a common location. For example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.
Explanation: