What is one defining feature of a prokaryotic cell?membrane-bound organelles

organelles are not membrane-bound

cytoplasm surrounds organelles

have a cell wall outside plasma membrane

Answers

Answer 1

Answer:

Answer:

Answer B: Organelles are not membrane-bound

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A biologist has found an organism she cannot identify while doing a census in a swamp. Which of the following would be the best characteristic to look for in order to decide whether this organism should be classified as a protist or as a plant?
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To maintain order within their cells and organs, all living things musta. constantly change.
b. be able to move.
c. reproduce.
d. carry on metabolism.
e. extract energy from sunlight

Answers

The answer is d. carry on metabolism.

Metabolism includes all chemical reactions involved in maintaining order within cells and organs. The purpose of metabolism is a conversion of food or fuel to building blocks for macromolecules and to energy for cellular processes. It is involved in the elimination of waste, too. Regulation of metabolism is important for normal functioning of cells and organs.

The second generation phenotypes resulting from the cross of purebred monohybrid pollination will display a ratio of _____. 2:2 4:1 3:1 none of the above

Answers

The answer is 3:1.

If we imagine that plant has two alleles for the trait, we can dominant allele represent with P represents and recessive allele with p. To get purebred monohybrid in the first generation, parents must be a dominant homozygote (PP) and a recessive heterozygote (pp):

Parental generation: PP x pp
The first generation: Pp Pp Pp Pp

Pp represents a heterozygote.
If we cross these heterozygotes:

The first generation: Pp x Pp
The second generation: PP Pp Pp pp

If dominant allele determines the phenotype, there will be 3 plants (one PP and two Pp) with one phenotype and only 1 plant (pp) with another phenotype and vice versa.

3:1 is correct, had this question earlier

In what way is a gene pool representative of a population

Answers

an organism that best fits the mold and criteria for health , progressive reproduction

Lisa is interested in studying the chemical processes in living organisms. In which field of biology should she pursue her studies? A. Biophysics B. Biochemistry C. Biometry

Answers

Biochemistry is the study of chemical processes of living organisms. This includes cell processes such as respiration, fermentation and many cycles such as Calvin, Krebs Cycle, or Embden-Mayerhoff Cycle. Not only the processeses, biochmemistry deals with yield of these processes in terms of metabolites and biomass concetrations.

If Lisa is interested in studying the chemical processes in living organisms, then the field of biology that she should pursue her studies in is B. biochemistry, which deals with exactly what she wants to do in her life.

A chemical reaction is the only way to separate a? a.element b.pure substance c.mixture d.solution

Answers

I believe it's B. Pure substance, including that of compounds. An element can't be separated or broken down any further in terms of chemical composition. While some mixtures and solutions can be separated by physical means. Not solely relying on a chemical reaction.

Answer: B

Explanation:

The __ era follows the end of the Paleozoic era