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A sponge is an animal with three different types of cells. It is an aquatic invertebrate that has no true tissues or organs. A sponge is a sessile, filter feeder. It contains collar cells that line the cavity and are used to filter food into the sponge. Sponges can reproduce asexually and sexually. In some sponges, support is provided by a simple skeleton made of a network of tough, flexible protein fibers called spongin. Other sponges have skeletons consisting of spicules. What is spongin? What type of organism is a sponge? Animal or plant? Any classification information? Describe any three types of cells found in a sponge.
How do sponges eat and gain nutrients? How do sponges reproduce?
Describing your learning or something interesting about sponges.
What is the function of the vitellus in the vertebrate egg? How are these eggs classified according to the amount of vitellus within them?
Explain why type AB+ blood may be called the "universal recipient" for blood transfusions. Explain why this would not be true if the transfusion required 6 units (about 3 liters) of blood.
Normally multicopy plasmids do not integrate into chromosome even when they contain considerable DNA sequence homology for recombination.
What are Hox genes?
In general, what length of oligonucleotide would be sufficient to amplify a single unique sequence that is, what would the minimum length have to be in order for the oligonucleotide sequence
in 3-5 paragraphs reflect on the history of abortion laws and the recent challenges to these laws in the united states
For a new mutation arising in the XYZ gene designated XYZG287 there is a linked allele, QRS2 ~100,000bp away on the same chromosome. After twenty generations find the estimated linkage disequilibrium.
A one hundred ml vessel is filled with water separated in equal parts by a semipermeable membrane. The molecular weight cut off of the membrane is 100g/mol.
q. archaeologists discover skeletal remains of humans in ethiopia. assessment of the bone suggests that the remains
Calculate the frequencies of the AA, Aa, and aa genotypes after one generation if the initial population consists of 0.2 AA, 0.6 Aa, and 0.2 aa genotypes and meets the requirements of the Hardy-Weinberg relationship. What genotype frequencies will..
Given a population with two alleles at a single locus: A1 and A2, where p = 0.65. If the population has an inbreeding coefficient of 0.43, what are the expected frequencies of the genotypes?
In rabbits, black is due to a dominant gene, B, and brown to its recessive allele, b. Short hair is due to a dominat gene, S, long hair to its recessive allele, s.
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