Answer and Explanation:
Sand crabs are known by this name mainly because they spend an important part of their lives buried below the sand. As other crustaceans, they are characterized by the possession of antennae, a structure that has several important roles in their behaviour and physiology.
For instance, they are an important feature in their feeding behaviour. When a sand crab feeds, it begins by showing only its eyes and first pair of antennae. However, as ocean waves recede, they show a second pair of antennae that serves to filter the microcrustaceans and phytoplankton - their main food source. This enables the crab to gather food and survive in this tough environment.
The correct answer is C. The Congressional Record.
Besides this, you might also look in the congressional library.
Joe Biden 2020-2021 yessss
Answer:
2048
Explanation:
The bulbs increase in a multiple of 2
Using the formula a(a^n) where a = 2 and n is the number of year
1 yr = 4
2yr = 8
3 yr = 16
4 yr = 32
5 yr = 64
6 yr = 128
7 yr = 256
8 yr = 512
9 yr = 1024
10 yr = 2048
Answer:
The operational definition of "helpful" in Tamika's study is the person that helps her pick up her papers.
Explanation:
In social research, the variable that the researcher wants to study has to have a conceptual and an operational definition. The conceptual definition is the definition you would normally find in a dictionary and it explains how the what the concept means and how it relates to other constructs. The operational concept explains how the researcher is going to measure it, how that concept can take place in reality.
In Tamika's study, to measure the concept "helpull" she is going to measure how many people help her pick up her papers, this is the operational concept since it is how she is going to measure if women are more helpfull than men.
