BIOLOGY HIGH SCHOOL

BRAINLIEST TO FIRST CORRECT. 1. What can scientists learn about by studying Ice? (Air Temperature, Ocean Temperature, Carbon Dioxide Levels, Kinds Of Plants, or Rainfall)?
2. What can scientists learn about by studying Chemical Isotopes In Foraminifera? (Air Temperature, Ocean Temperature, Carbon Dioxide Levels, Kinds Of Plants, or Rainfall)?
3. What can scientists learn about by studying Fossilized Pollen Grains? (Air Temperature, Ocean Temperature, Carbon Dioxide Levels, Kinds Of Plants, or Rainfall)?
4. What can scientists learn about by studying Tree Rings? (Air Temperature, Ocean Temperature, Carbon Dioxide Levels, Kinds Of Plants, or Rainfall)?

Answers

Answer 1
Answer:

The answer to the questions are :

  • Ocean Temperature, Carbon Dioxide, Air Temperature
  • Carbon Dioxide Levels
  • Kinds Of Plants.
  • Kinds Of Plants, or Rainfall.

What do scientists learn form their studies  ?

The scientists learn from the ice cores about the air and other ocean temperatures and also get to know about the Carbon dioxide levels. The scientists studying Foraminifera get to learn about the amount of carbon dioxide in the air. By analysis of the pollen they learn about the changes in vegetation. From the tree rings, they learn about the tress and weather conditions.

Find out more information about the scientists.

brainly.com/question/21750948.
Answer 2
Answer:

Final answer:

Scientists can learn about past air temperatures and carbon dioxide levels from ice cores, past ocean temperatures from chemical isotopes in foraminifera, historical plant types from fossilized pollen grains, and past air temperatures and rainfall from tree ring patterns.

Explanation:

By analyzing different proxies, scientists can deduce valuable information about Earth's past climate and environmental conditions. Here are the specific insights gained from the proxies mentioned:

  • Ice: Studying ice cores, especially from Antarctic ice, enables scientists to determine historical air temperature, carbon dioxide levels, and more by examining trapped air bubbles and biological substances.
  • Chemical isotopes in Foraminifera: By analyzing these isotopes, scientists can deduce past ocean temperatures based on the coiling direction of the Foraminifera's shells found in sediment cores.
  • Fossilized pollen grains: These can indicate the kinds of plants that were present historically, which, in turn, reflects climate conditions and local ecosystems.
  • Tree rings: The number and characteristics of annual rings in trees can reveal historical air temperature and rainfall patterns, as well as environmental conditions and events like droughts or volcanic eruptions.

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Which of the following properties of transposable elements allows them to contribute to the C-value paradox?A. Their copy number can increase from one generation to the next.B. Their replication is controlled by genes found on the transposable element itself.C. Copies of transposable elements can appear on multiple chromosomes.D. All of these choices are correct.
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Junior biomedical researchers have long assumed that their hirings and promotions depend significantly on the amount of their published work. People responsible for making hiring and promotion decisions in the biomedical research field, however, are influenced much more by the overall impact that a candidate's scientific publications have on his or her field than by the number of those publications.The information above, if accurate, argues most strongly against which of the following claims?(A) Even biomedical researchers who are just beginning their careers are expected already to have published articles of major significance to the field.
(B) Contributions to the field of biomedical research are generally considered to be significant only if the work is published.
(C) The potential scientific importance of not-yet-published work is sometimes taken into account in decisions regarding the hiring or promotion of biomedical researchers.
(D) People responsible for hiring or promoting biomedical researchers can reasonably be expected to make a fair assessment of the overall impact of a candidate's publications on his or her field.
(E) Biomedical researchers can substantially increase their chances of promotion by fragmenting their research findings so that they are published in several journals instead of one.

Answers

Answer: E

Explanation:

The statement if correct argues most strongly against the claim that biomedical researchers can substantially increase their chances of promotion by fragmenting their research findings so that they are published in several journals instead of one in the sense that what counts is not the numbers of publications but it's impact. Meaning that a researcher can have several publications but yet with low impact in the field.

Which best describes genetic mutations? Some inherited genetic mutations can be good for the offspring. Different genetic mutations cause few forms of cancer. Somatic mutations can be inherited from parents or acquired during life. Genetic mutations that cause diseases are always passed on to offspring.

Answers

The answer is: Some inherited genetic mutations can be good for the offspring.

Problems with the other answers:
Different genetic mutations cause many forms of cancer.

Somatic mutations can be acquired during life, but cannot be inherited from parents. Germ cell mutations can be inherited from parents or acquired during life.

Genetic mutations that cause diseases are not always passed on to offspring. For example, it could be a somatic mutation (soma = body, other than reproductive cells), and this would not be the genetic material passed on in the sperm or ova. Also, by chance the child may receive the non-mutated allele from the parent. Or in the case of X linked diseases, perhaps the father has an X linked recessive disease, but will not pass his X chromosome to his son, he will pass his Y chromosome, etc.

The correct option is some inherited genetic mutation can be good for the offspring.

Further Explanation:

The change in the sequences of deoxyribonucleic acid (DNA) is known as mutation. It can occur due to mistakes while making a copy of deoxyribonucleic acid (DNA) or due to some environmental factors. At the time of replication, the alteration can occur in the sequences of deoxyribonucleic acid which results in mutations.

Hereditary mutation is the mutation which leads to evolution as mutation occurs in germ cells. This type of mutation can pass from one generation to another. These mutations are inherited from parents.

Genetic mutations which are inherited from parents to offspring can be good as it leads to evolution. Genetic recombination or gene mutation can lead to genetic variation that is the difference in sequences of deoxyribonucleic acid between individuals of the same population.

Learn more:

  1. Learn more about missense, nonsense, and silent mutations brainly.com/question/1812133
  2. Learn more about human sperm cells and egg cells are brainly.com/question/1626319
  3. Learn more about the different type of mutation that occurs within the bodybrainly.com/question/1901841

Answer Details:

Grade: High School

Subject: Biology

Chapter: Genetics

Keywords:

Mutations, inherited mutation, DNA, offspring, replication, evolution, germ cells, genetic recombination, chromosome, gene mutation, genetic variation, sperm, ova, zygote.

In the food chain below, which is the producer?
flower - mouse - snake- hawk

Answers

The question is asking us the following: "In the food chain below, which is the producer? And the food chain is: flower - mouse - snake- hawk", The producer is the organism that can produce energy from the source, typically from the sunlight, without eating parts of other animals. Producers are plants - and almost all plants are produces (some are also consumers). so the answer is "flower'

The producer is the flower.

"Over the years, the forest cover in a particular ecosystem was reduced from about 50% to 20%. What would be the MOST LIKELY effect of this?A) The loss of moisture from the soil would be reduced.
Eliminate
B) Herbivores would be forced to change into carnivores.
C) The flow of energy in the ecosystem would be affected.
D) The exchange of carbon dioxide in the ecosystem would increase"

Answers

The correct answer is option C

If the forest cover in an ecosystem is reduced from 50% to 20%. The most likely effect is that the flow of energy in the ecosystem would be affected.The forest means the green plants that are also known as the producers of the ecosystem and they transfer energy to the consumers and the ecological balance is maintained. If there will be less producers then the flow of energy in the ecosystem will be affected.

Answer:

c

Explanation:

c

Which biomolecule forms the cytoskeleton in cells? A Lipids
B Carbohydrates
ะก Proteins
D Nucleic Acids

Answers

The cytoskeleton is the internal structure that maintains the shape of the cell and is made up of proteins that polymerize into filamentous structures.

What are proteins?

They are biomolecules made up of structural units called amino acids.

The cytoskeleton is a protein-based system found in cells that provides internal support and is constructed of three main types of filaments (proteins), theseare microtubules, microfilaments, and intermediate filaments.

Therefore, we can conclude that the cytoskeleton is the internal structure that maintains the shape of the cell and is made up of proteins that polymerize into filamentous structures.

Learn more about the cytoskeleton here: brainly.com/question/13449140

Answer:

microtubules. actin filaments and intermediate filaments

What kind of bacterium would be most likely found in the human stomach

Answers

Acid loving Bacterium are found in the human stomach.
Enzymes - particularly proteases. These break down protein in the stomach in the presence of low pH (acidic material eg stomach acid).
In addition to this, there are many bad bacteria that cause illnesses such as E. Coli or Helicobacter Pylori 
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