Answer:
C. experimental
Explanation:
Experimental variables are the variables that are changed during the experiments to observe the effects of these changes. An experiment usually has one or more experimental variables. An experimental variable that is changed to know its impact on some other variable is called the independent variable.
In the given experiment, goldfishes were exposed to various temperature conditions to observe the effect of temperature on respiration. Therefore, both temperature and respiration rate are the experimental variables here.
This is false because people could use way much water
Explanation:
A-Oral Cavity
B-Mouth
C-Pharynx
D-Oesophagus
E-Lever
F-Stomach
G- Gallbladder
H- Doudenum
I- Large Intestine
J- Small intestine
K- Appendix
L- Rectum
M-Anus
The function performed in F is that,it mixes the food thoroughly with more digestive juices.
The function performed in M is that ,it allows the control of stool.
I think the answers are A, B, and C.
<em>sieve tube elements are the cells of phloem which allow transportation of photosynthates through phloem...
<u>
how sieve tube elements form sieve tubes:
</u>sieve tube elements are connected end to end and form a long chain which is called sieve tube,,,,
sieve tube elements are connected with the help of a side chain with the help of peptide bond...also one element has tapering end which easily overlaps with other end of next element to form sieve tube,,,,</em>