Giraffes (Giraffa camelopardalis) have 30 chromosomes in their somatic cells. How many chromosomes will each daughter cell have after the final step of meiosis? Answer with a whole number.
Required
1 point
1
Question 2
2.
The oak mistletoe is a green, leafy plant that grows on trees and has white berries. Mistletoe seeds are spread to other trees through the waste of birds that feed on berries. The mistletoe seedlings grow into the tree to obtain water and nutrients.
Which answer choice correctly identifies a relationship between two of these organisms?
Required
1 point
1
Question 3
3.
The table shows the relationships of some organisms in the Texas Hill Country habitat.
Based on the data in the table, which food chain depicts a correct flow of energy through the Texas Hill Country?
1 point
1
Question 4
4.
Almost every organism begins the process of protein synthesis with a ____________ nucleotide sequence. This start codon is translated to a common _______________ in all organisms.
Other Answer Choices:
amino acid
doublet
triplet
peptide
glucose
Required
1 point
1
Question 5
5.
Scientists have reported that more than 95% of the factors that lead to come types of cancers are caused by random DNA copying errors. During which phase of the cell cycle do these DNA copying errors most likely occur?
Required
1 point
1
Question 6
6.
Rennin is an enzyme that catalyzes a reaction that solidifies milk. Renin was added to three different test tubes with milk. Each test tube was placed in a water bath for 10 minutes. The data collected during the experiment are shown.
Which statement best explains the result of test tube 3?
Required
4 points
4
Question 7
7.
Correctly identify which process causes each result.
_________________________- carbon dioxide is released into the atmosphere
___________________ - energy is stored in carbon compounds
___________________- carbon dioxide is removed from the atmosphere
_________________________ - energy is released from carbon compounds