Answer:
no, because they do not have the same number of protons
Explanation:
No of protons represents atomic number which decides the characteristics of an atom . Two atoms having same number of protons but different number of neutrons are same element . They differ only in some physical characteristics . They are called isotopes . In respect of chemical properties they are same . In a neutral element number of protons and number of electrons are same . But in some case number of electrons may differ . In that case they form ions of the element . In positive ion , number of electrons is shorter than number of protons .
In the present case , atom A and atom B differ in respect of number of protons so they represent different element .
Areas undisturbed by people were first regulated in 1964. What law covers these areas?
A) Serengeti Heritage Act
B) Wildland Project Law
C) US Wilderness Act
D) US Park Service Law
Answer:
C)
US Wilderness Act
Explanation:
took the test and got it right!
what Two
surround and enclose the chloroplasts.
Answer:
double membrane
Explanation:
Chloroplasts are surrounded by a double membrane similar to the double membrane found within a mitochondrion.
Answer:
Chloroplasts are surrounded by a double membrane similar to the double membrane found within a mitochondrion. Within the chloroplast is a third membrane that forms stacked, disc-shaped structures called thylakoids.
delete this if It dosen‘t help
PLEASE HELP ME
A portion of a nucleic acid sequence is shown below.
Which term best describes this nucleic acid?
AGC TAT GCC AAA
The study of the gene is called genetics. Genes are always present in pair form.
The correct answer is DNA.
What is DNA?The DNA stands for deoxyribose nucleic acid.it stores all the genetic information and helps in the regulation of the formation of protein and hormones.In DNA, Adenine binds to the thymine and uracil in RNA.
In the question, it has the thymine nitrogenous base.
Hence, we can say that nucleic acid is DNA.
For more information about the DNA, refer to the link:-
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label all 18 phases of mitosis of an onion root cell
use the words prophase, anaphase, metaphase, interphase, and telophase.
Answer:
sorry wish I could help I just don't understand it ??
Find the base of the following:
1. 20% of a number is 40
2. 40% of a number is 20
3. 70% of a number is 35
4. 80% of a number is 84
5. 20 is 5% of what number
help me please
Answer:
1. 8
2. 50
3. 50
4. 105
5. 25
Explanation:
how does mutation affect the outcome of a population in terms of Evolution.
A diagram of a flower is shown below.
What structure in the flower produces pollen for plant reproduction?
Answer:
im pretty sure b but look it up and make sure im right before submitting tho..... I just looked it up im right
plant conduct which of the following processes
A: photosynthesis
B: cellular respiration
C: both
Answer: hiii, the answer would be c. both
i hope this helps, have a nice day :)
Explanation:
NEED HELP ASAP!!!
Animal - Interphase
Animal - Prophase
Animal - Metaphase
Animal - Anaphase
Animal - Telophase/Cytokinesis
Plant - Interphase
Plant - Prophase
Plant - Metaphase
Plant - Anaphase
Plant - Telophase/Cytokinesis
Answer:
plant cell in metaphase
Explanation:
its a plant cell because of the cell wall around it and how it looks like a rectangle and its in metaphase because the chromosomes are in the middle of the cell. hope this helps!
The Miller-Urey experiment simulated compounds present in the atmosphere of early Earth, lightning, and the evaporation and condensation of atmospheric water. What other information about the conditions on Earth during this time period would you want to know to improve the experiment?
Answer:
The Miller-Urey experiment was conducted to simulate the conditions on Earth when life arose, and see if a chemical evolution could occur. This experiment was performed without oxygen, because they knew that if oxygen was added, the amino acids would oxidize. In particular, the experiment intended to simulate a volcanic eruption was analyzed.
Thus, particles of water, methane, ammonia and hydrogen were exposed to high temperatures and electric discharges that simulated these eruptions, during a determined period. Later, it was observed that organic compounds had emerged from this exposure, which allowed us to infer one of the hypotheses regarding the origin of life on Earth.
the particles of a gas are
Answer: Low Density
Gases contain scattered molecules that are dispersed across a given volume and are therefore less dense than in their solid or liquid states. Their low density gives gases fluidity, which allows gas particles to move rapidly and randomly past one another, expanding or contracting with no fixed positioning. The average distances between the molecules are large enough that interactions between molecules don't interfere with their motion.
Indefinite Shape or Volume
Gases have no definite shape or volume.The random movement of gas molecules allows them to expand or contract to assume the volume of the container holding them. Therefore, a gas's volume refers to the space of the container in which its molecules have range to move. This property results in gases occupying more space than they would in their liquid or solid state. Gases also contract and expand by predictable amounts depending upon changes in temperature and pressure.
Compressibility and Expandability
The low density of gases makes them compressible since their molecules can be positioned far apart from one another. This allows them to move freely to fit into the gaps of space between them. Just as gases are compressible, they are also expandable. The freedom of gas molecules causes them to take the shape of any container in which they are placed, filling the container's volume.
Diffusivity
Given the large amounts of space between gas molecules, two or more gases can mix quickly and easily with one another to form a homogeneous mixture. This process is called diffusion.
Pressure
Gas molecules are in constant motion. They exert pressure, or force per unit area, on the interior surface of their container. The pressure varies according to the amount of gas confined to a given container's volume, the temperature and the pressure.
Explanation:
These are the 5 properties of gas, they don't have particles, they have properties.
The graph below shows the energy associated with a chemical reaction. The activation energy decreases once a certain type al molecule is added
What type of molecule causes the activation energy to decrease as shown in the graph?
Liquid
protein
nucleic acid
carbohydrate
Answer:
C.
Explanation:
I'm doing it now
The type of molecule that causes the activation energy to decrease is a PROTEIN.
Proteins are biomolecules composed of amino acids linked via peptide bonds.There are two major classes of proteins: structural proteins and enzymatic proteins.Enzymatic proteins catalyze specific chemical reactions by lowering the activation energy.In conclusion, the type of molecule that causes the activation energy to decrease is a PROTEIN.
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Which type of molecules make up the majority of a cell’s plasma membrane
Answer:
The principal components of the plasma membrane are lipids (phospholipids and cholesterol), proteins, and carbohydrate groups that are attached to some of the lipids and proteins. A phospholipid is a lipid made of glycerol, two fatty acid tails, and a phosphate-linked head group.
Explanation:
I need help again xO
Can someone please give me an explanation for Interphase and what happens in interphase?
I will mark brainliest
Please dont copy and paste
Answer:
Hey Brianna, during interphase, the cell grows and DNA is replicated (or in other words: remade)
Explanation:
In the mitotic phase, the replicated DNA and cytoplasmic contents are seperated, and then the cell divides.
Answer:
interphase is the first phase of the cell cycle. The cell grows and DNA is replicated
Assume that (B) is dominant and (b) is recessive: bb mates with bb
All the offspring will show the recessive trait
All the offspring will show the dominant trait
About 50% of the offspring will show the recessive trait
About 75% of the offspring will show the dominant trait
Answer:
Explanation:
A
Assume that (B) genotype is dominant and (b) genotype is recessive: bb mates with bb. All the offspring will show the recessive trait. thus option A is correct.
What is genotype ?A genotype can be defined as the total set of heritable characters carrying genes transferred from parents to offspring; These genes involve in encoding specific features that can be physically expressed in an organism called as phenotype.
The genotypes of the gene can be represented in three form on the basis of allele arrangement such as homozygous dominant (PP), Heterozygous (Pp) and Homozygous recessive (pp).
genotyping is a method is used to determine the genotype of an individual by using biological assay and the techniques used are, DNA fragment analysis, PCR, allele-specific oligonucleotide (ASO) probes, nucleic acid hybridization, DNA microarrays or beads, and DNA sequencing.
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Calculate the momentum of a 0.145 kg rock thrown at a speed of 40.0 m/s.
a
5.8 kg*m/s
b
.0036 kg*m/s
c
275 kg*m/s
Answer:
5.8 kg*m / s
Explanation:
p=m*v
.145*40 =5.8
HELP PLEASEE WILL GIVE BRAINLIEST!!!
Determine if each item is a conductor or an insulator. *
8 points
insulator
conductor
layers of clothing
plastic
O
a silver spoon
fur on your pet
a metal fence
copper wire
oven mitts
gold jewelry
Answer:
I need 5 brainliest to level up
Explanation:
Conductor- Silver spoon, metal fence, copper wire, gold jewelry
Insulator- Layers of clothing, plastic, fur on your pet
Which factor determines who a society will produce goods and services for?
A.
the economic system in the society
B.
the available resources in the society
C.
the population of the society
D.
the external sector of the society
Answer:
the economic system in the society
A strike-slip fault is the result of what type of stress?
A
extension
B
compression
С
shear
D
strain
Answer:
С.shearExplanation:
A strike-slip fault is a dip-slip fault in which the dip of the fault plane is vertical. Strike-slip faults result from shear stresses .
From the list below, select all the probable items that make up the core. (Select all that apply.)A.IronB.AluminumC.SodiumD.MagnesiumE.Nickel
Answer: A. Iron and E. Nickel
Explanation:
Earth's core is the center part of the planet and it is very hot in nature. It is the center of geothermal activities. It is like a furnace. It is associated with intense heat and pressure in the center. It is composed of iron and nickel. The crust and mantle are rich in many minerals. The core is made up of outer core and inner core. The outer core is in borders with the mantle. The temperature of the inner core is higher than the melting point of iron.
101.35kpa equals 1 atmosphere. convert 99.8 kpa into atmosphere
Answer:
0.9847 atmosphere
Explanation:
write difference between breathing and sespisation
Answer:
brainliest please
Explanation:
Breathing is the physical process where you inhale and exhale air in and out of your lungs. Respiration is a chemical reaction where Oxygen is used to breakdown Glucose in order to generate energy which is then used by the cell to function.
A newspaper article reported that a fossil was found that was 200,000 years old according to generally accepted radioactive
determination because the fossil was found closer to the Earth's surface than were previously discovered fossils of the same
Older rock layers commonly lie deeper underground than younger ones.
Older rock layers may be pushed closer to the surface by geologic processes
The age of a rock layer can often help in determining the age of the fossils it contains
Fossils form only under certain conditions
Answer: Older rock layers may be pushed closer to the surface by geologic processes.
Explanation:
Help me out please
A) Tropism
B) Night
C) Photoperiodism
D) Plant Hormones
Answer:
c
Explanation:
help asap please!! A snake species that has migrated from the mainland to a small island eats banana slugs instead of lizards and mice, its usual diet.
Which statement best explains this change in behavior?
A)The genotype that affects food choice is not isolated to a single phenotype.
B)Instinctual food choice by snakes is not related to genotypic flexibility.
C)Diet is exclusively controlled by snake genetics, not by nature.
D)Gene expression for mainland snakes is rigid and confined to one phenotype.
Answer:
correct answer is option A
Explanation:
The diagram below represents a food web. Which organisms are correctly paired with their nutritional roles?
Snakes
Hawks
Mountain
lions
Insect
eating
birds
Rabbits
Seed-
eating
birds
Mice
Bark
beetles
Deer
Grasshoppers
Flower seeds
Vice
Grasses
Mushrooms
Bacteria
Trees
A. hawk-decomposer; insect-eating bird-parasite
B. mouse-autotroph; flower seed-heterotroph
C. mountain lion-consumer; bark beetle-herbivore
D. grasshopper-carnivore; grass-autotroph
Please helpppp meee!!!!its a final
Answer:
C. mountain lion-consumer; bark beetle-herbivore
Explanation:
Food webs contain a series of inter-connected food chains. In a food web, organisms in different trophic levels feed on one another to obtain energy. Based on the diagram attached to this question, the roles of different organism is as follows:
- MOUNTAIN LION: This is a consumer i.e organism that feeds on other animals. This is the case as seen in the diagram that mountain lions are feeding on rabbits and Hawks.
- BARK-BEETLE: This is an herbivore because it feeds directly on the plants as seen in the attached image.
the hormone is a chemical substance affect the cells growth and it will be accumulate more in the side that faces light
true
false
Answer:
Its partially true!!
the first part is true but 2nd part is false
You can choose False
hello! I had one quick question I wanted to ask just to make sure I was right. the question is "How do animals obtain the energy they need? "
Answer:
by eating or doing whatever that species needs to do
Explanation:
Purple flowers are dominant to white flowers. Which of the following phenotypes would (PP) reflect?
A. Purple
B. White
Answer:
A. Purple
Explanation:
Since purple flowers are dominant to white flowers, the letter for it need to be capital too to signify dominance. So purple flowers is PP.