Answer:
See explanation
Explanation:
Fossil records contain an extensive detail of the evolution of various species on earth which have been preserved in the remains of these organisms or imprints that organisms that existed long ago must have left in sedimentary rocks.
Fossil records basically tell us about the past. They tell us about the species that once existed on earth. They also tell us how long these species existed and how the were related to other species.
This information help us to work out how these organisms lived and the environment where they lived.
Answer:
A student has been studying electrical circuits in class. The student suggests that replacing a wire with rubber tubing will stop the current from flowing through a circuit. Which term best describes this idea?
Hypothesis
Explanation:
From the analogy, it is expedient to know that the student assertion about the electrical circuits was an hypothesis because it gives room for further investigation by other scholars.
<span>3. Reduced bone marrow in the spongy bone.</span>
Question:
The organelle shown consists of a stack of flattened membranes.
What is the primary function of this organelle?
- attaching amino acids to tRNA molecules
- long-term storage of molecules in the cell
- production of large and small ribosomal subunits
- repackaging proteins for export from the cell
Answer:
- repackaging proteins for export from the cell
Explanation:
The organelle consisting of a stack of flattened membranes is the Golgi apparatus.
The Golgi apparatus is like the packaging centre of the cell. It modifies, sorts, and packages proteins and from the endoplasmic reticulum to be stored in the cell or released outside the cell
Explanation:
One DNA molecule wound around molecules of protein make up a <u>Chromosome</u>
All the genetic information within the eukaryotic cell is preserved as helical DNA within the nucleus. This DNA is tightly wrapped around histones as chromosomes.
Further Explanation:
DNA sequences make up genes which may have various forms called alleles. DNA, which constitutes the genotype, is transcribed into mRNA and later translated into amino acids that are linked together by rRNA to form proteins that make up an organism's phenotype. Mutations in the DNA sequences affect the respective mRNA and thus the encoded protein
Spontaneous changes within the genome can occur during the phase of cell division, called mutations. These errors occur as copies of the DNA are produced within the cell; mutations may range from small modifications, called single nucleotide polymorphisms, to large-scale deletions and multi-gene additions.
Learn more about mutations at brainly.com/question/4602376
Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316
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