Is a lake freezing a chemical or physical change

When the signal recognition particle (srp) is removed from the ribosomal complex, what happens as a direct consequence?

A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. What are the chances of their children being albino?

Which of the following conditions leads to germination of a spore into a vegetative cell? a. a nutrient rich environment b. water c. high temperatures d. all of the above leads to germination of a spore

How does the hydronium ion form? What is it's formula?

Explain how a type B blood transfusion could be fatal for a person with type A blood. Be specific.

What does the heart do?

What is a radical?

A series of waves with decreasing wavelength labeled A, B, C, D, E, F, G from left to right as wavelength decreases.

Cameron is collecting data to determine the time of completion for each stage of germination in seeds. He is using bean seeds for his investigation and recording his results. He repeats his data collection many times to obtain reliable results.

Which human action has not lead to significant changes in Earth's biomes?