4. There are two tree frogs that have different proteins in their cells for tongue length. They have different parents. What can you say about the frogs' tongue lengths?
а
They will have the same tongue lengths because even with different proteins for tongue
length, the proteins can connect in the same way.
b
They will have different tongue lengths since offspring from different parents will have
different tongue lengths.
С
They will have different tongue lengths since their proteins for tongue length are different
so the proteins will connect in different ways.
d They will have the same tongue lenoths since all tree frogs have the same tongue

Elephants in the savanna regions of africa dig holes in dried up river beds to reach water lying just below the surface. these holes provide drinking water for other animals as well. so, without the elephants, many animals might otherwise die from lack of water during the dry season. the location in which the elephants live is an example of a/n and the role they play in creating water holes is an example of a a) ecosystem; habitat b) community; niche c) habitat; niche d) niche; habitat

Which statements best describe the differences or similarities between a comparative investigation and an experimental investigation? check all that apply. experimental investigations are best for showing cause-and-effect relationships, while comparative investigations do not necessarily show this type of relationship. comparative investigations are often impractical and unrealistic, while experimental investigations are the most practical and realistic kinds of investigations. comparative investigations allow for the use of a wide range of variables but do not have a control group, while experimental investigations involve variables that can be controlled. both experimental investigations and comparative investigations are designed to answer scientific questions. both experimental investigations and comparative investigations focus on making observations rather than collecting new data.

Match each medication with its description.