In the diagram, which of the following is true?
A. Both diagrams show developmental sequences occurring in the same animal.
B. Both diagrams show blastulae.
C. Diagram II shows gastrulation in a bird.
D. Diagram I shows gastrulation in a frog.
E. Diagram I shows gastrulation in a mammal and diagram II shows gastrulation in a reptile.
D. Diagram I shows gastrulation in a frog.
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The functional role of sporopollenin is primarily to _____
A) comprise spore surface structures that catch the wind and assist in spore dispersal B) reduce dehydration C) make spores less dense and able to disperse more readily D) repel toxic chemicals E) provide nutrients to spores
Two STR loci were determined to have the following allele frequencies in the general population: STR A STR B Alleles: 1A: 0.1 1B: 0.4 2A: 0.55 2B: 0.4 3A: 0.25 3B: 0.2 4A: 0
1 A suspect in a criminal trial was genetically tested for these loci and was found to have the genotype (1A, 1A) for STR A and (2B, 2B) for STR B–homozygous for both loci. What is the probability that a randomly sampled person from this population would also have this genotype?
Without the protein myosin, what structures would also be missing in a muscle?
A) ribosomes B) mitochondria C) thin filaments D) thick filaments
An estuary where freshwater inflow is greater than evaporation is called a:
a. negative estuary. b. positive estuary. c. reversible estuary. d. neutral estuary.