Which of the following is NOT true of animals.
A) animals have a blastula stage of development
B) animals are multicellular
C) some animals can reproduce asexually
D) animals have cell walls composed of chitin
And
Which of the following statements is correctly matched?
A) cnidarians - spicules of silica
B) ctenophores - venomous
C) cnidarians - polyp and medusa body forms
D) poriferans - colloblasts
Answers: 2
Biology, 22.06.2019 01:30
Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity
Answers: 1
Biology, 22.06.2019 02:20
Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?
Answers: 3
Biology, 22.06.2019 03:30
In pea plants, the allele for inflated pod seed, i, is dominant over the allele for constricted pod seed, i. the punnett square shows a cross for this trait. which offspring will be homozygous dominant
Answers: 2
Biology, 22.06.2019 06:00
The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.
Answers: 1
Which of the following is NOT true of animals.
A) animals have a blastula stage of devel...
A) animals have a blastula stage of devel...
Mathematics, 22.11.2019 11:31
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