A) photoreceptors
b) myopia
Answer:
b. pseudocoelom
Explanation:
A pseudocoelom is a false body cavity of some invertebrates which occupies the space localized between the mesoderm and the endoderm of the gut. This false cavity is found in nematodes.
Arthropods exhibit:
1- Bilateral symmetry because both opposite sides of the body are similar,
2- they are protostomes because the blastopore becomes the mouth during embryonic development,
3- they have true tissues because tissues are formed by groups of cells which share a common function, and finally,
4-arthropods are triploblastic because they are formed by three germ embryonic layers (endoderm, mesoderm and ectoderm).
Answer: FALSE.
Explanation: DNA is is double stranded molecule. upon replication, two new strands are formed with are each anti- parallel to the original strands. so the amplification is exponential.
so one DNA molecule will give rise to an identical molecule. further replications give rise to several copies of the same molecule in an exponential manner.
The stages of DNA bases in a molecule can determine the order of amino acids in protein molecules. Groups of three bases called triplets represent different amino acids. This is the basis of the genetic code . A sequence of bases (genetic information) on DNA that codes for a protein is called a gene
The scientific method:
Observation
Problem
Hypothesis
Materials
Procedure
Data
Analysis
Conclusion
