An echinoderm uses its tube feet for attachment and feeding.
Explanation:
- Tube feets are usually considered as locomotory organ of Echinoderm.
- They have tube feets arranged around their oral groove.
- These tube feed help the organism to push the food into the oral groove.
- Tube feets also help the echinoderms to attach themselves to the floor of the ocean and locomote slowly in a sliding manner.
Answer:
O silicon (Si)
Explanation:
-Valence electrons are electrons of the outermost shell which can participate in chemical bonding. ... -As in silicon, four electrons are present in the outermost shell, so silicon has Four valence electrons.
Answer:
C) Initially mutation will be the only source of variation in the population
Explanation:
In this experiment, mutation will be the only source of variation in the population.
Therefore, natural selection cannot begin operating immediately on the population because there was no initial variation.
Also initial differences in the population will not be as a result of sexual selection.
Finally, mutation is a random process. Despite the two populations being identical they will accumulate different mutations. Therefore after 100 generations the two populations will not be genetically identical.
Answer:
Climate change leading to increases in ocean temperatures, evaporation of seawater, and glacial and sea ice melting could create an influx of warm freshwater onto the ocean surface. This would further block the formation of sea ice and disrupt the sinking of denser cold, salty water.
Explanation:
The answer to question 3 is choice B. Cells
The answer to question number 5 is choice A. New cells are made in all of them
The answer to question number 6 is choice A. Cells make the basic structure of an organism, and they perform basic life functions for the organism
The answer to question number 7 is choice B. maintenance of homeostasis
The answer to question number 9 is choice B. Viruses must invade a host cell to reproduce while bacteria can reproduce on their own
The answer to question number 11 is choice D. Eubacteria, Archaea, Protist, Fungus, Plant, and Animal
The answer to question 14 is choice D. 100%
The answer to question 15 is choice B. 100% white _ might have to re-check this one
The answer to question 17 is choice B. Ff and Ff
The answer to question 18 is choice A. They will all be tall
The answer to question 19 is choice B. Mutualistic
The answer to question number 20 is choice D. planting flowers
The answer to question number 22 is choice B. the population of the rabbits in the ecosystem will increase
The answer to question number 23 is choice D. competition for resources
