Answer:
-There is a variation in traits.
-The environment cannot support unlimited populations of organisms.
there is heredity.
-The trait that allows the organism to have more offspring will become more common in the population of organisms.
Answer:
A. A prokaryote lacks a well-defined nucleus.
C. A prokaryote lacks cell organelles.
Explanation:
A prokaryote has DNA or RNA just floating in the cytoplasm. There is no nucleus to hold them inside. A prokaryote also lacks a mitochondria and other organelles, so it is different from a eukaryote.
Answer:
Doctors screen people for chlamydia and gonorrhea by taking a urine test or a swab inside the penis in men or from the cervix in women. The sample is then analyzed in a lab. Screening is important, because if you don't have signs or symptoms, you may not know that you have either infection
Explanation:
Answer:
all of these seems reasonable except the last one
Answer:
Cell cycle checkpoints are surveillance mechanisms that monitor the order, integrity, and fidelity of the major events of the cell cycle. These include growth to the appropriate cell size, the replication and integrity of the chromosomes, and their accurate segregation at mitosis.
