The hormone controlling metamorphosis in tadpoles is Group of answer choices A. thyroxin B. testosterone C. juvenile hormone D. adrenaline E. ZPA

Q: Which of these functions explains the role of hormones in the reproductive systems? A. Influence…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: The primate residence pattern known as 'One female, multimale' is typical of some 'Platyrrhini'.…

A: Answer-- True Several unique morphological features (e.g., claws, prehensile tails) and uncommon…

Q: Which of these is the correct explanation of mass change in developing eggs as illustrated in the…

A: The eggshell contains >1000 pores. The metabolic activities of the embryo require energy.

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Q: What are the difference of bodily functions of cockroach, toad, and mouse on; A. Reproduction and…

A: Cockroaches can withstand doses of radiation that would be lethal to humans. They can hold their…

Q: The experiment in which a second Zone of Polarizing Activity (ZPA) was transplanted to the anterior…

A: ZPA is a specialized zone or mesenchyme at the posterior part of the limb bud.

Q: Identify major endocrine glands

A: The endocrine system is comprised of organs that create and release  chemicals, compound substances…

Q: Read following statements w.r.t. cockroach and choose the option which correctly states true and…

A: Cockroaches are insects that belong to the order Blattodea. There are 4600 species of cockroaches…

Q: Gracilization of AMHs is probably due to   a. Development of

A: Gracility of the modern Homo sapiens skeleton is the result of decreased biomechanical loading

Q: In most____ , males and females cooperate in care of the young. a. mammals c. fishes b. birds d. all…

A: In most____, males and females cooperate in the care of the young.

Q: What would you predict about beak size if the Galápagos experiences a wet year? choose correct…

A: Darwin believed that evolution occurred over hundreds or thousands of years and that it was…

Q: Which of the following is not true about prolactin in female rats? O a. It helps trigger the…

A: The reproductive cycle in females of mammals can be of two types: The estrous cycle and the…

Q: The "yoked control" experiments performed during operant conditioning of the aerial respiratory…

A: * A yoked control design in which matched research subjects are yoked by receiving the same stimuli…

Q: Hydroids resemble tracheids in the fact that they are living at maturity. O True • False Question 10…

A: Hydroids are specialized cells present in certain mosses that help in transporting water and…

Q: Animals at risk which offer potential medical uses include all of the following EXCEPT (a)…

A: Animals, plants including microorganisms are proven to  be very beneficial with reference to the…

Q: The hormones that drive frog metamorphosis are metamorphosis are.. a. T3 and T4; juvenile hormone…

A: Following birth or hatching, an animal's physical development involves a visible and typically…

Q: What form of amplexus did you see with the Panamanian Golden frogs?

A: Amplexus  Amplexus is a type of mating behaviour in externally fertilizing animals.

Q: Compare and contrast the juvenile hormone and moult inhibiting hormone.

A: Hormones are the chemical messengers of the body. They travel through the bloodstream to various…

Q: Ticks are regarded asa. monophagous endoparasites.b. monophagous ectoparasites.c. polyphagous…

A: Monophagous parasites means, parasites which feed on one species or a few very closely related…

Q: 1) Animals that get rid of excessive NaCl by excreting it from salt glands include ________. A)…

A:

Q: Estradiol is found in high levels in the pregnant rat. This estradiol is prevented from affecting…

A: In the pregnant rats progesterone will be essential for the maintenance of the pregnancy along with…

Q: Multiple choice (one answer is correct)   a. The food eaten by the female parent as a caterpillar…

A: Comparing the spring and summer, The weather of summer is much warmer as the spring has just begun…

Q: orm only D. Sea Star only E. Earthworm and Squid F. Crayfish and Sea Star G. all four H. none of the…

A: 21- Earthworm and squid 22- All four 23-crayfish and sea star  24-Earthworm only 25- squid only

Q: Which is a correct statement concerning the insect circulatory system? Question 18 options:…

A: Insects, like all other arthropods, have an open circulatory system that differs from the closed…

Q: Salamanders can regenerate limbs, but only under certain conditions.  a) What is the effect of…

A: Since you've asked multiple questions, we're answering the first one for you. If you want any other…

Q: Please describe the role of estradiol, prolactin, luteinizing hormone, progesterone and inhibin in…

A:

Q: 77. The type of feedback that estrogen and progesterone are exerting on the gonadotropins after…

A: Gonadotropin or GnRH is secreted and produced in the hypothalamus by the specialized nerve cells of…

Q: Male birds of paradise have evolved to create sophisticated dance routines to attract females. This…

A: Selection is a process that play a huge role in evolution. Those who are better suited to survive…

Q: A“negatively phototaxic” amphipod will swim:a.away from parasitic worms.b.towards parasitic…

A: Amphipods belong to crustaceans and are mostly detritivores or scavangers. They are aquatic and…

Q: The closest living relatives of hagfishes are_____ . a. snakes c. lampreys b. sharks d. placoderms

A: The organisms that has a common ancestor can share a relativity of closeness among it. These…

Q: Which of the following situations does NOT lead to decreased fertility? Select one: a. Low sperm…

A: Male infertility can be caused by low sperm production, abnormal sperm function or blockages that…

Q: Tadpole is the developing stage of which of these:         I.   Dogs        II.   Cats       III.…

A: Tadpole is a larval stage during the life cycle of a specific type of organisms. It is the stage…

Q: The frilled lizard of Australia suddenly opened its mouth wide and unfurled folds of skin around its…

A: The neck frill, often as wide as the lizard is long, lies like a cape over the shoulders. When the…

Q: Using his antennae, the male moth finds female moths by following a trail of airborne chemicals,…

A: Option (c) is the correct answer .

Q: The visceral mass of gastropods take a 180 degree turn during development. This causes the anus to…

A: Parthenogenesis is the reproduction without actual meiosis and fertilization. It occurs in lower…

Q: Which of the following is TRUE? none of them is correct O turtles at low temperatures become female

A: Answer- crocodiles at high temperature become male. Temperature determines an alligator's gender,…

Q: every individual is designed to have an organ system with its corresponding parts and functions. (a)…

A: Testosterone is a chemical substance known as hormone and it can have quite wide ranging effects…

Q: Animals exhibiting external fertilisation produce a large number of gametes. Pick the appropriate…

A: Cell division is a process of a parent cell replicating it chromosomal content and dividing itself…

Q: There is no bird without feathers. A. true B. false

A: Birds: A class of warm-blooded animals known as the Aves, birds are distinguished by their feathers,…

Q: High levels of juvenile hormone are present during the larval stages of insects.  Concentration of…

A: Juvenile hormone is well demonstrated to affect life span of insects. It is generally released…

Q: When the siblings of centenarians were studied, it was determined that … a.Genetics has no role in…

A: * study shows that the exceptional longevity will runs strongly in families * The disability is…

Q: Reptiles show many adaptations for a completely terrestrial lifecycle. The deputation that first…

A: Characteristics of reptiles  Reptiles are the animals that evolved with adaptations to live on land.…

Q: In mammals the AVE… a. All of the options provided here are true. b. helps position the primitive…

A: Introduction :- Mammals are classified under the kingdom Animalia . Mammals are characterized by the…

Q: Adult Karner blue butterflies: A Feed on a variety of nectar producing flowers. B Do not feed. C…

A: Anatomy, which reveals that evolutionary ties may be proven through homologous structures, and…

Q: Read following statements w.r.t. cockroach and choose the option which correctly states true and…

A: The phylum arthropods are unique in a way due to the presence of exoskeleton and segmented body.…

Q: This question pertains to frogs  Females arriving at the breeding pond may be encountered by males…

A: Amplexus is a mating behavior shown by species of anurans (frogs), newts, and horseshoe crabs. The…