BIOLOGY HIGH SCHOOL

The study of which structure was instrumental in the formulation of the modern cell theory? plant cell animal cell cell membrane DNA molecule

Answers

Answer 1
Answer:

Answer;

-DNA molecule

Explanation;

-According to cell theory; All known living things are made up of one or more cells. All living cells arise from pre-existing cells by division. The cell is the fundamental unit of structure and function in all living organisms.

-The modern version of the Cell Theory includes the ideas that:

  • Energy flow occurs within cells.
  • Heredity information (DNA) is passed on from cell to cell.
  • All cells have the same basic chemical composition.

-Therefore the study of DNA molecule was instrumental in the formulation of the modern cell theory.
Answer 2
Answer: DNA molecule. IS THE ANSWER (not 100%The study of which structure was instrumental in the formulation of the modern cell theory? plant cell animal cell cell membrane DNA molecule

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During gamete formation, the alleles for each gene separate from each other so that each gamete carries only one allele for each gene. This is called:Mendel's law of segregation

Mendel's law of dominance

Mendel's law of independent assortment

Mendel's law of meiosis

Answers

Answer: Mendel's law of independent assortment

Explanation:

Mendel's 2nd law of inheritance is also known as law of independent assortment of genes.

It states that each character behaves as a SEPARATE unit and is inherited INDEPENDENTLY of any other character.

Therefore, the SEPARATION of alleles from each other so that each gamete carries only one allele PERFECTLY explains Mendel's law of independent assortment

Answer:

Mendel's law of segregation

Explanation:

Taller trees have a canopy arrangement of leaves where the upper leaves tend to be smaller than the ones below them. How does this arrangement of leaves benefit the plant?

Answers

This is because the leaves below need more light since they are less exposed to the sun. They are longer and can absorb more and photosynthesize more. The upper ones need less light and less materials since they are more exposed to the light.

A chicken feed claims to produce more eggs. an experiment is to be conducted to determine whether the feed will lead to a higher egg production. it was determined the type of chickens impact egg production, but the amount of water a chicken drinks does not. how would blocking best be used? (1 point) a by blocking on chicken egg production b by blocking on chicken feed c by blocking on chicken water intake d by blocking on chicken type

Answers

Blocking would be best used 'by blocking on chicken type'. This means conducting separate trials for different types of chickens while testing the chicken feed because the type of chicken was determined to impact egg production.

In a scientific experiment where the aim is to conclude whether a certain chicken feed leads to higher egg production, blocking would be used to control the variables that might affect the result of the experiment. According to the information given, chicken's water intake is said to have negligible influence on egg production, however, the type of chicken does impact the production quantities.

Therefore, the ideal way to apply blocking to the experiment would be by differentiating the groups of chickens based on their type; this method is referred to as blocking on chicken type. The implication of this is, testing different chicken feeds on different types of chickens separately to ensure the accuracy of the experiment results by eliminating confounding factors.

Learn more about Blocking in Experiments here:

brainly.com/question/32036785

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How dose biodiversity affect the stability of a ecosystem ?

Answers

The diversity of species and genes in ecological communities affects the functioning of these communities. ... The two main areas where the effect of biodiversity onecosystem
The diversity of species and genes in ecological communities affects the functioning of these communities. ... The two main areas where the effect of biodiversity on ecosystem function have been studied are the relationship between diversity and productivity, and the relationship between diversity and community stability.

Suppose that a dominant allele (P) codes for a polka-dot tail and a recessive allele (p) codes for a solid colored tail. If two heterozygous individuals with polka-dot tails mate, what's the probability of the phenotype and genotype combinations of the offspring?A. 25 percent chance of a polka-dot tail and 75 percent chance of a solid colored tail (25 percent PP; 50 percent Pp; 25 percent pp)
B. 75 percent chance of a polka-dot tail and 25 percent chance of a solid colored tail (25 percent PP; 50 percent Pp; 25 percent pp)
C. 75 percent chance of a polka-dot tail and 25 percent chance of a solid colored tail (75 percent Pp; 25 percent pp)
D. 50 percent chance of a polka-dot tail and 50 percent chance of a solid colored tail (50 percent PP; 50 percent pp)

Answers

The answer is B. 75 percent chance of a polka-dot tail and 25 percent chance of a solid colored tail (25 percent PP; 50 percent Pp; 25 percent pp) 

If P represents dominant allele (a polka-dot tail), p represents recessive allele (a solid colored tail), then heterozygous individuals have Pp genotype. All alleles will combine each other:

Parental generation:      Pp     x     Pp
Offspring:                  PP    Pp    Pp    pp

Thus, the probability of PP genotype is 1/4 (there is only 1 of total 4 possible genotypes), which is 25%. The probability of Pp genotype is 1/2 or 50%, and the probability of pp genotype is 1/2 or 25%.

Talking of phenotypes, the P allele is dominant and each genotype containing P allele will have the polka-dot phenotype. In this case, there are 3 out of 4 genotypes containing P allele - 1 PP and 2 Pp. So, the probability of the polka-dot tail is 3/4 or 75%, leaving the probability of the solid color tail 1/4 or 25%.

Carbon bonding is almost entirely _____.hydrogen

covalent

ionic

chemical

Answers

the answer is A  (HYDROGEN)
the answer would be hydrogen cause its air so hydrogen is what you breath in and carbon out
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