What is a defining feature of mammals that is not present in most other vertebrates?
a. mammals maintain a constant body temperature.
ob.
mammals reproduce through internal fertilization.
oc. mammals can produce milk for their offspring
od. mammals have a nervous system with a spinal cord.

answer; i believe the correct answer is ( proteins );

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.