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Animal Biology

General Biology

The organs of excretion in flatworms are a. nephridia. b. contractile vacuoles. c. Malpighian tubules d. protonephridia. Animals that are hermaphroditic usually a. fertilize their own eggs. b. cross-fertilize. c. donate eggs to other individuals d. all of these A scolex is a. the anterior attachment organ of a t

General Biology

Matching. Choose the most appropriate answer for each. 1a. ___ placozoa 1b. ___ annelids 1c. ___ arthropods 1d. ___ chordates 1e. ___ cnidarians 1f. ___ echinoderms 1g. ___ flatworms 1h. ___ rotifers 1i. ___mollusks 1j. ___ roundworms 1k. ___ sponges A. Trichoplax B. Vertebrates C. Planarians, flukes, tapeworms

Biology Study Guide

Hi, I have created a study guide for my biology final exam coming up. Please choose which is the correct answer for each question. Thank you. 1. Natural selection is the process by which a) the age of selected fossils is calculated. b) organisms with traits well-suited to their environment survive and reproduce more. c)

NMDA receptors

Would you expect ALL mammalian neurons to have functional NMDA receptors? Please explain your answers. I am looking for any feedback you can provide. I am happy to receive any feedback you may offer on this topic. Thanks much!

Interpretation of intracellularly recording from pyramidal cells in a mouse

I am recording intracellularly from the neocortex of a mouse. If I place my electrode on one set of pyramidal neurons (Layer 2) and add fenfluramine (a serotonin uptake blocker), whithin 5 minutes the neurons produce GREATER amount of action potentials. But when I place fenfluramine while recording from another set of pyramida

Analyzing a sample of wild canary song

The main purpose of analyzing a sample of wild canary song is to become familiar with song dialect pattern of geographic variation, identify dialect boundaries objectively, and gather some evidence of whetheror not dialect memberslikely have intimate social interactions.i have already got and analyzed rolls of sonograms of songs

Hormone use in the cattle industry

The USDA has been following hormone use in the cattle industry since the 1950s. The hormone is given to the cattle in pouches inserted into the ear. The hormone enters the bloodstream of the animal very slowly, and according to the USDA the hormones never enter the human food chain. According to the USDA the use of growth


What is the the pureraris thunbergian (VINE) KUDZU of I am requesting the classification schme of KUDZU: KINGDOM, Phylum, Class, Order, Family, Genus, and Species

Qs about bones

1. Think about an arthropod such as an ant, and a vertebrate such as a lizard. what functions do the skeletons of there animals have in common? do they have a common structure? Explain. 2. Why do you think that spongry bone has an outer layer od compact bone? 3. Think about the possibible movements of your lower arms

Nitrogen excretion rate and oxygen consumption and temperature

In a lab we looked at the effects of different temperatures on the rate of oxygen consumption and nitrogen excretion in the goldfish. we found that oxygen consumption and nitrogen excretion both increased as the temperature increased. What are some reasons for these increses in oxygen consumption and nitrugen excretion with in

Feeding Goldfish

I'm conducting an experiment entitled the "Effect of volume on Carassius auratus growth". However, I'm uncertain of how often and how much to feed the gold fish. My experimental setup consists of a ten gallon tub (30 X 20 inches, about 6 inches deep) with five individual containers within, approximately filling a volume of 2 lit

Release of triglycerides of adipose cells

Please only take this problem if your answer can not be complete and understandable. Thank you! Describe the storage and release of triglycerides of adipose cells on a molecular level, and describe the hormonal control of this process.

Adaptation of the respiratory system to flight in birds(Aves)

I am doing a seminar on the adaptation of the bird respiratory system to flight, but I am having some trouble finding journals that are useful to me. I need to find a minimum of 3 primary resources. I was just wondering if someone could help me find some.

Animal behaviour from chi square test

Individual chi square questions 1. The data below was gathered in the Animal Behaviour lab. In this case, 5 zebra danios were placed in a container in compartment A of the aquarium and 5 goldfish were placed in a container in section C of the aquarium. The test fish, in this set of data was a zebra danio. Does this fish displ

Relative fitness

You find that out of 20 of red wolves released, 18 survive, and out of 10 brown wolves released, 4 survive. What is the relative fitness of red and brown wolves? I have the fitness of the red wolves (favored genotype?) as 1, but I keep getting a negative number for the brown wolves' fitness.

A probability question is answered.

155 wolves 65% are red wolves 35% are brown wolves -- all carry brow allele 48% of red wolves carry recessive brown allele What is the probability that a wolf carries brown allele? These areas are encompassed.

Comment on subject's aerobic efficiency and fitness

Aerobic efficiency and fitness can be estimated using the following formula: INDEX = (Duration of exercise in seconds) x100 = 2(sum of first 3 pulse counts in recovery) Norms below 55 = poor 55-64 = low average 65-79 = average 80-89= good 90+= excellent