A plant's response to the position of the sun in the sky is termed

a. photoperiodism.

b. heliotropism.

c. phototropism.

d. thigmotropism.

2. What features of apples do breeders consider when growing apples?

How does a net force of zero affect an objects state in motion?

Which description distinguishes the process of meiosis from mitosis? -Unlike mitotic cells, meiotic cells undergo a single division to halve their chromosome number, after which they undergo crossing over to restore their diploid state -Unlike

How long would it take e. coli to replicate its entire genome (4.2 x 106 bp), assuming a replication rate of 1,000 nucleotides per second at each fork with no pauses?

A virus that infects bacteria is called? A: prophage B: bacteriophage C: endospore D: retrovirus

Norway rats have 42 chromosomes in their diploid cells. If a diploid rat cell enters meiosis, how many chromosomes and double-helical molecules of DNA will be present in each daughter cell at the end of meiosis II?

Which discovery is attributed to Phoebus Levene? A. extraction and observation of DNA B. identification of ribose and deoxyribose C. recognition of RNA as DNA's messenger D. construction of an accurate DNA model

A small population of chimpanzees lives in a habitat that undergoes no changes for a long period. how will genetic drift probably affect this population?

Which type of cells can differentiate into many different types of cells? select all that apply

A person has such severe epilepsy that his limbs are paralyzed, and doctors recommend a radical hemispherectomy. what results can he expect?