b. stabilizing selection
c. a mechanism of evolution
d. directional selection
Regular distribution is observed for many organisms due to _______.
a. the need to maximize exposure to sunlight
b. the need to avoid predators
c. interactions between individuals
d. the plentiful availability of water
Natural selection is the differences in survival and reproduction as the consequence of differences in phenotypes. According to Darwin's theory of evolution, natural selection is the only factor that affects a frequency of different variations and it is the only mechanism of evolution.
Q2. The answer is c. interactions between individuals.
Organisms interact with other organisms or abiotic factors in some system. The interaction between individuals affects their regular distribution. For example, if two groups are in competition for resources, to maximize resource utilization, they will probably live in different areas or will defend territory. Also, some symbiotic organisms are expect to be distributed similarly.
Answer:
Questions 1 & 2 Are C
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b. Dorsal hollow nerve cord
c. Spinal column
d. Notochord
8. In order for the exchange of oxygen and carbon dioxide to occur, an animal’s respiratory surfaces must remain
a. cold c. hot
b. dry d. moist
9. A bird’s instinct to fly south for the winter is an example of which type of behavior
a. Learned behavior
b. Habituation
c. Observant conditioning
d. Innate behavior
10. Echinoderms are most closely related to chordates because both are
a. Protostomes
b. Deuterostomes
c. Endotherms
d. Ectotherms
11. What advantage do forward facing eyes provide primates
a. The ability to form extended social groups
b. The ability to judge the distance of branches
c. The ability to manipulate tools
d. The ability to find mates easier
12. What type of symmetry does the animal in the figure display
a. Asymmetrical c. radial
b. Bilateral d. multi-symmetry
13. The ability for animals to reproduce on land was primarily due to
a. Lungs c. 4 limbs
b. Endothermy d. amniotic eggs
14. Cephalization allows animals to
a. Gain information about their environment
b. Escape from predators
c. Attract mates
d. Increases the production of offspring
15. Termites can often be found with protists in their gut. The protists aid in the digestion of cellulose, which is found in the wood termites eat. What type of relationship is this
a. Parasite c. mutualism
b. Commensalism d. cohabitation
16. Which is true about gas exchange in respiratory systems
a. Gases diffuse from areas of low concentration to areas of high concentration
b. Gases diffuse from areas of high concentration to areas of low concentration
c. Gases diffuse equally in most situations
d. Concentration has no effect on gas diffusion
17. When you use your knowledge and experience to figure out an error message on your computer, you are using
a. Classical conditioning c. innate behavior
b. Insight learning d. trial-and error learning
18. Which of the following types of cells produce a muscle contraction
a. Sensory neuron
b. Interneuron
c. Motor neuron
d. All neurons can stimulate muscle contraction
19. What is the function of the excretory system
a. To supply cells with oxygen and nutrients
b. To rid the body of metabolic wastes
c. The exchange oxygen and carbon dioxide with the environment
d. To break down food
20. Examining the teeth of an animal can give you information about whether it
a. Practices intracellular or extracellular digestion
b. Is a filter feeder or a detritivore
c. Is a nutritional symbiont
d. Is a herbivore or carnivore
species diversity
a population
genetic diversity
A.
all the DNA strands in the two DNA molecules will have both parental and newly synthesized DNA.
B.
it results in two nonidentical DNA molecules.
C.
each of the two DNA molecules will consist of one parental strand and one newly synthesized strand.
D.
of the two DNA molecules, one is made up totally of parental DNA, while the other is entirely newly synthesized DNA.
E.
one DNA strand is replicated continuously, while the other must be replicated discontinuously.
Answer:
The best answer to this question: Mary Ainsworth would most likely classify Latoya as:___, would be: Insecure avoidant.
Explanation:
When forming relationships with other people, especially during the first years of life, the way that parents interact with their children will be vital to define how, in later years, these same children will be able to bond with other people. In the case of Latoya, it is evident that she does not want, or does not care, that her mother is in the room with her; she does not seek her, she ignores her mother and was not upset if her mother was not there with her. Latoya´s attitude shows a lack of attachment to her mother, even a rejection, to her, for a reason that is unknown. Furthermore, it would seem as if Latoya were avoiding anything that has to do with her mother, to the point of ignoring that she is even there. These are typical attitudes of children that have formed an insecure avoidant bond with another person.