Answer:
its not only provide evidence of the history of earth but it also of changes in organisms whose fossil remains have been found in layers
Explanation:
hopes this helps!
The totality of a cell's DNA is referred to as its
Answer:
genome
Explanation:
Why is it so important for us to decrease our use of fossil fuels?
A. The combustion of fossil fuels are causing a hole in the Ozone layer
B. The combustion of fossil fuels leads to an increase in atmospheric CO2 which leads to global climate change
C. The combustion of fossil fuels help us meet our energy demands, so it is not that important that we switch to alternatives.
D. Fossil Fuels do not harm the environment, but we are running out of them so we need alternatives.
help me please please
Answer: it
Explanation: I know
Answer:
B.
Explanation:
Fossil fuels definitely harm the environment, and their supply is depleting. So that takes out answers C and D, leaving A and B. The main cause of ozone depletion and the ozone hole is manufactured chemicals being released into the air. While CO2 from fossil fuels does have an effect on worsening the hole, it has a much higher effect on global climate change.
Which of the following describes a state of equilibrium?
Answer:
the condition of a system when neither its state of motion nor its internal energy state tends to change with time.
or b partially
Can you please help me thanks you
Answer:
1. I can't tell exactly, diagram isn't clear. But it cannot be 'glycolysis' or 'dark reactions'. 2. B 3. A 4. B
Explanation:
A student forgets to mix the second tube of the serial dilution. How might this affect the subsequent dilutions?
The change in leaf color on these trees is one way the trees maintain what
Part C-Answer true or false:
a. If a plant cell is placed in a salt solution, the central vacuole will shrink
b. If a red blood cell is placed in distilled water, it will shrink
c. If a plant cell is placed in distilled water, the cell membrane will move away from the cell wall
d. If a red blood cell is placed in a salt solution, the salt will enter the cells, giving them a strange appearance
"Crossing Over" occurs in Prophase 1 of Meiosis.
True
False
Answer:
true
Explanation:
Answer:
Crossing over occurs during prophase I of meiosis before tetrads are aligned along the equator in metaphase I. By meiosis II, only sister chromatids remain and homologous chromosomes have been moved to separate cells. Recall that the point of crossing over is to increase genetic diversity.
Explanation:
Which nitrogenous base would pair with adenine during DNA replication?
A
O cytosine
<
B
O guanine
C
Othymine
D
ouracil
The nitrogenous base would pair with adenine during DNA replication is othymine. Thus, option C is correct.
What are nitrogenous base?
Replication relies on complementary base pairing, that is the principle explained by Chargaff's rules and adenine (A) always bonds with thymine (T) and cytosine (C) always bonds with guanine (G). 18% became cytosine pairs with G. A pairs with T. T and C are not complementary base pairs, but we know that if molecules consists of 32% T, it must have 32%.
The discovery of the structure of DNA was useful because it revealed how mRNA was used to make proteins. There are four nitrogen bases of DNA nucleotides are such as adinine, thymine, guanine and cytosine.
HDL stands for high-density lipoprotein or good cholesterol which absord cholesterol and send it to lever. The lever then flushes it from the body. High-density lipoprotein can lower your risk for heart disease and stroke.
Therefore, The nitrogenous base would pair with adenine during DNA replication is othymine. Thus, option C is correct.
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Which of the following statement is true about fossil ?
Answer:
there are no statements...
Explanation:
Answer:
Explanation:The deeper you go into the Earth the older the fossils will be. So, in the diagram you have provided we see that fossil #5 is the oldest and fossil #2 is the youngest.
The order of age goes like this (from youngest to oldest):
1. Fossil #2
2. Fossil #1
3. Fossil #4
4. Fossil #3
5. Fossil #5
Therefore, the only correct answer would be that fossil #4 is younger than fossil #3.
Evaluate the model.select that do NOT accurately identify the structures labeled in the picture. Choose all that apply.
Answer:
C.)Genes,E are pairs of chromosomes that code for traits.
D.)Genes,G, are segments of chromosomes that carry traits
Explanation:
A cricket has 22 chromosomes in each body cell (somatic). How many chromosomes are in each sex cell (egg or sperm) of a cricket?
Answer:
How many of these chromosomes will be found in an egg cell? All 46 chromosomes. No, sex cells have a half set of chromosomes. 23, one from each pair.
Explanation:
Conduction can only occur between two objects when –
Answer:
Conduction can only occur between two objects when -
one object is less dense than the other. both objects are in physical contact with each other.
A scientist is preparing to use a light microscope in her biology laboratory to view a prepared slide of algal cells.
Answer:
Due to its high magnification power.
Explanation:
A scientist used a light microscope to view an algal cells because light microscope is able to magnify objects up to about a thousand times. Various cellular organelles, such as nuclei, chloroplasts, and mitochondria etc can also be seen clearly with the help of light microscope so that's why scientist used light microscope to study algal cells.
how do normal cells become a cancer cell
Test (Photosynthesis & Cellular Respiration) 1) Describe how the Electron Transport Chain works. Be sure to focus on the role diffusion plays in the ETC This should be 4 sentences.
Answer:
The electron transport chain is a cluster of proteins that transfer electrons through a membrane within mitochondria to form a gradient of protons that drives the creation of adenosine triphosphate (ATP). ATP is used by the cell as the energy for metabolic processes for cellular functions.
How does an amoeba breathe
Answer:
Amoebas have a semirigid layer of ectoplasm which absorbs oxygen from the surrounding water and eliminates carbon dioxide in a form of respiration.
Explanation:
hope this helps
White tailed deer begin their reproductive cycle in the fall. Rising testosterone levels in
male white tailed deer cause them to start their breeding season around the same
time. Offspring are born the following spring and summer.
What is the most likely explanation for the white-tailed deer having a seasonal
breeding cycle instead of a monthly breeding cycle?
The explanation for the white-tailed deer having a seasonal breeding cycle should be that deer provide birth in the spring and summer.
What is seasonal breeding?It is considered to be animal species so it should be successfully mated at the time of specific times of the year. It permits the optimization of survival of young because of factors like food, water availability, etc
So, here deer provide birth in the spring and summer for avoiding the pregnancy at the time of hot summer months.
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cells are classified as either prokaryotic or eukaryotic according to differences in their structure. However these cells also share several traits.
Answer:
ya coz there are some difference between them , they aren't completely different .
Explanation:
Which of these groups has the most organisms?
A. Class
B. Order
C. Phylum
D. Genus
The group that has the most organisms is the phylum that is present in Option C as the In the taxonomic hierarchy, a phylum is a level above a class, and it contains multiple classes.
What is a phylum?A taxonomic hierarchy is a system used to classify and organize living organisms based on their shared characteristics and evolutionary relationships, and the hierarchy is composed of different levels or ranks, and at the top is the domain, which represents the broadest and most inclusive category, while below the domain are the kingdoms, followed by phyla, classes, orders, families, etc. Phyla are one of the broader categories in the hierarchy, and they include groups of organisms with a common ancestor and shared characteristics that distinguish them from other groups, and an examples of phyla include the chordata.
Hence, the group that has the most organisms is the phylum that is present in Option C.
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Plants can help prevent erosion or contribute to erosion. Which describes how plants could contribute to erosion?
a
Plant roots grow in rocks, breaking the rocks.
b
Plants break the impact of raindrops before they hit the soil.
c
Plants slow the runoff of water and soil.
d
Plant roots hold the soil in place against wind.
Answer:
a
Explanation:
the others ones described plants helping to stop erosion
Answer:
The Answer is A
Explanation:
Plant roots grow in rocks, breaking the rocks.
Which of the following will result from the bottleneck effect?
A. Increase genetic diversity
B. Decrease genetic diversity
C. Adaptation of species
D. Reproductive Isolation
Answer:
B. Decrease genetic diversity
Explanation:
Answer:
Explanation:
decrease in genetic diversity because only some species will reproduce adequately due to the bottleneck effect
Arrange the celestial bodies in our solar system in increasing order based on their size.
Jupiter
Mercury
Earth
Sun
Saturn
< < <
Answer:
Mercury, Earth, Saturn, Jupiter, and Sun
Q.19. During which period did the first flowering plants (angiosperms) appear?
a) Triassic
b) Silurian
C) Jurassic
d) Cretaceous
Answer:
Cretaceous
Explanation:
They began changing the way the world looked almost as soon as they appeared on Earth about 130 million years ago, during the Cretaceous period. That's relatively recent in geologic time: If all Earth's history were compressed into an hour, flowering plants would exist for only the last 90 seconds
Questloh 16
16. Asexual reproduction take place in ?
Your answer:
Mitosis
Meiosis
Cytokineisis
Answer:
mitosis
Explanation:
Mitosis is essential for asexual reproduction, regeneration, and growth
Which of the following terms would Bb
represent in an organism?
A. phenotype
B. genotype
C. genetics
What is artificial selection? How is the development of different dog breeds an illustration of artificial selection?
Answer:
Artificial selection is process in which humans select the traits in animals and plants and use animal breeding or plant breeding to produce the animal or plants with desired traits.
Different dog breeds is very good example of artificial selection because with the help of artificial selection humans can drastically alter the appearance of dogs. With artificial selection human can develop Great Dane from the tiny Chihuahua.
Answer:
When humans breed animals for a specific trait.
Explanation:
Ap Ex
two multipule choich questions
Answer:
B. Attach to a host cell
A.
Explanation:
The structure labeled as x is the ____ so the cell in the image is a ____ the structure labeled as w is the ______ so the cell in the image is a ____
Answer:1. nucleus 2.eukaryotic cell 3.chloroplast 4.plant cell hope this helps
Explanation: p.s the person above did not not know any of the answers
Which of the following is the complimentary DNA strand for the sequence shown below?
ACT GCA
Please explain, if possible.
The complimentary DNA strand for the sequence ACT GCA is TGA CGT.
What is DNA?DNA stands for deoxyribonucleic acid which is defined as a polymer made up of two polynucleotide chains which coil around each other to form a double helix.
Primarily DNA is located in the cell nucleus called nuclear DNA, but a small amount of DNA can also be found in mitochondria called mitochondrial DNA or mtDNA, so mitochondria are structures within cells that store energy from food that converts into energy.
The information in DNA is stored in the form of code made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T) which are bond to each other by hydrogen bond like A with T with 2 hydrogen bonds while C with G with 3 hydrogen bonds. Like for above given information, ACT GCA complimentary strand is TGA CGT
Thus, The complimentary DNA strand for the sequence ACT GCA is TGA CGT.
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