Which of the following animals is the most complex? Base your decision on body plan, structures used to carry out various functions, and structures used to respond to the environment

flatworms

hydras

sponges

sea urchins

In guinea pigs, the allele for rough coat (r) is dominant over the allele for smooth coat (r). a heterozygous guinea pig and a homozygous recessive guinea pig are mated. which would be the phenotypes of the offspring? a. all rough coat b.

What does the symbol within each box of the periodic table refer to?

Water crossing fish 2 8 with a fish lacking pelvic spines, imagine that 48 out of 100 offspring lack pelvic spines. what can you assume about the genotype of the fish 2 8 based on this result

Which characteristic do all prokaryotes and eukaryotes share? a. the need to take in oxygen for cellular respiration b. the need to acquire energy from other organisms c. the ability to transmit genetic information to an offspring d.

The smallest contracting unit of a skeletal muscle is A: Sarcomere B: Motor Unit C: Synapse D: Muscle fiber

The greenhouse effect is related to the increase in average surface temperatures known as

Which of the following is true about spring tides but is not true about neap tides? they must occur during a new moon in spring they occur during the moon's first quarter and third quarter phases they only occur during a full moon they can occur

Animal cells are bathed in an isotonic fluid, and plant and bacteria cells have a cell wall. What does this protect the cell membrane from?

Explain why latin is the basic for many scientific names

What is incomplete penetrance and what causes it? incomplete penetrance means the heterozygote has an intermediate phenotype between the two homozygous phenotypes because of interactions with environmental factors.