How do multi-cellular organisms develop?

A.

Cell differentiation - start from a single cell and as the cells divide they become specialized

B.

They all start as skin cells

C.

Organisms have the same number of cells all the time.

True or False, it's likely that organisms other than LUCA existed alongside LUCA before the divergence of bacteria from archaea and eukaryotes.

If in a heterozygous individual only one allele is expressed in the phenotype that allele is

A scientist is comparing the outer layer of an onion cell to the outer layer of a human skin cell. What is unique about the outer layer of the onion cell compared to the skin cell?

Which phrases describe faults? Check all that apply

What anatomical features allow for the expansion of the urinary bladder as it fills with urine?

A human nose is capable of detecting how many basic odors? a. 20 b. 40 c. 49 d. 50

Why is a control necessary to have when designing an experiment?

Why are there many separate ecosystems in a rainforest

Describe several ways in which the cheek epithelial cells differed from the potato, tomato, and onion cells? be specific

Which of the following is an example of human capital? People investing money into technology. The investment in education and training for people. Humans migrating to where their talents are needed. People who educate others on how to invest.