Which of the following are characteristics of arthropods?
1. protostome development
2. bilateral symmetry
3. a pseudocoelom
4. three embryonic germ layers
5. a closed circulatory system
A) 1
B) 1 and 2
C) 1, 2, and 4
D) 2, 3, 4, 5
E) 2 and 3
Answer: C
You might also like to view...
Mutation is defined as the:
a. change of the bacterial genotypes through the exchange of DNA from one cell to another. b. internal change in the original nucleotide sequence of a gene or genes within an or-ganism's genome. c. process by which genetic elements such as plasmids and transposons excise from one genomic location and insert into another. d. uptake of free DNA from the environment and recombination with the recipient's homologous DNA.
Mycorrhizae are especially effective in helping plant roots uptake
A. nitrogen. B. phosphorus. C. potassium. D. iron. E. magnesium.
Which gene will encode a transcription factor that will signal a cluster of embryonic cells to give rise to an appendage? a. Dlx b. All of the genes in the body help develop the appendages
c. Hoxc6 d. Hox e. There is no master gene that determines appendage formation.
How old is our planet Earth?
A. 3.5 billion years old B. 4.6 thousand years old C. 4.6 million years old D. 4.6 billion years old