Answer:
So the egg definitely came first.
Explanation:
Dinosaurs laid eggs, the fish that first crawled out of the sea laid eggs, and the weird articulated monsters that swam in the warm shallow seas of the Cambrian Period 500 million years ago also laid eggs. They weren't chicken's eggs, but they were still eggs.
<u>The feeding methods of gastropods and bivalves.</u>
<u>The feeding methods of gastropods: </u>
- They feed on from the rock surface.
- They feed on seaweeds, animals that are static.
- They use a hard plate that is present in the teeth called radula for feeding.
- They are not filter feeding organisms.
<u>The feeding methods of bivalves: </u>
- They feed form the water.
- They feed on phytoplankton that are seen in water.
- They feed on the smaller things that pass through their grills.
- These are filter feeding organisms.
Answer:
1: C
2: T
3: G
4: T
5: A
Explanation:
G and C are matching base pairs and A and T are matching.
Answer:
Dissolve 47.025 grams of sucrose in enough water to produce 250 ml of solution.
Explanation:
You need to prepare 250. mL of a 0.550 M aqueous solution of sucrose, C12H22O11 (aq),
which is used frequently in biological experiments.
Based on your answer above, what is the value of x?
Solution:
A 0.550 M aqueous solution contains 0.550 mole of sucrose per liter of solution.
250 ml = 0.250 liter
Thus a 0.250 liter of a 0.550 M aqueous solution of sucrose contains 0.250 * 0.550 = 0.1375 mole of sucrose
Recall:
Mass = number of moles * mass of 1 mole
mass of 1 mole of C12H22O11
= 12(12) + 1(22) + 16(11)
= 144 + 22 + 176
= 342 grams
Mass = 0.1375 * 342 = 47.025 grams of sucrose.
Dissolve 47.025 grams of sucrose in enough water to produce 250 ml of solution.
Answer:
D
Explanation:
Stem cells develop into many different cell type in the body.