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27 Feb 2018

Kissing bugs and bed bugs are the only members of the order that will cover. Both are blood feeders.
What are the two major ways on adult milkweed bugs differ from nymphs?
1.
2.

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Patrina Schowalter
Patrina SchowalterLv2
2 Mar 2018
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Related questions

CAN YOU PLEASE ANSWER 2 AND 3 :) THANK YOU

QUESTION 1 Use the information below to answer questions 1-3. Northern burrowing bugs feed on small arthropods that they search for under the bark of trees. These bugs vary considerably in the width of the pronotum; male bugs show greater variability than do females. Using light traps, you collect all of the bugs in the area, sort them by sex, and measure their pronotum width. By using a male-specific genetic markers you are able to determine which male is the father of each male offspring. The males do not associate with the females after they have mated; therefore any resemblance between males and their offspring is due only to genetics–not environment. The phenotypic variance of the males is 175.2, while the phenotypic variance of the offspring is somewhat less–146.1. The covariance in snout length between males and their offspring is 14.6. What is the heritability of pronotum width?

a) 0.083 b) 0.100 c) 0.167 d) 0.335 e) 0.500

QUESTION 2 Northern burrowing bugs shelter from cold weather in deep crevices in tree bark. Bugs who do not find shelter will not survive sever cold weather. During your study, a period of subfreezing temperatures caused all bugs that were not small enough to tunnel into crevices in the bark to die. Because of this, only those bugs with a pronotum width that averaged 12 mm narrower than the population mean to survive. Relative to the original population, how much will pronotum width differ in the next generation (young born after the severe cold period)?

a) 2.0 mm b) 3.0 mm c) 6.0 mm d) 12.0 mm e) You do not have enough data to tell

QUESTION 3 In Question 2, what type of selection is operating on pronotum width?

a) directional selection for a wider pronotum b) directional selection for a narrower pronotum c) stabilizing selection d) disruptive selection

1. Which of the following is notone of the effects of muscle-building anabolic steroids?
A. Cessation of menstrual periods in women
B. Increased body and facial hair in women
C. Reduced risk of cancer and heart disease in men
D. Breast tissue diminution in women
E. Kidney disease
2. Which of the following statementsabout hormones is true?
A. The same hormone can cause different responses in differenttypes of cells.
B. Whenever a hormone encounters a cell with a unbound receptor towhich it can bind, it can bind.
C. The receptor for a hormone may be on the secreting cellitself.
D. The receptor for a hormone may be in the plasma membrane orinside the cell.
E. All of the above
3. Which of Wigglesworth's observationsof Rhodnius bugs helped explain the role of insecthormones?
A. A blood meal triggers molting in these bugs.
B. If decapitated immediately following a blood meal, the bug willmolt.
C. When two bugs are connected, they molt simultaneously.
D. When two bugs are connected, the feeding status of one cantrigger molting in the other.
E. When two bugs are decapitated and connected, they do not moltinto adults.
4. Steroid hormones
A. must bind to carrier proteins to be transported in the blood totheir target cells.
B. bind with receptor proteins in the plasma membrane.
C. are synthesized from epinephrine in the adrenal gland.
D. are released from the cells that make them by exocytosis.
E. are mostly derivatives of the amino acid tyrosine.
5. Which of the following is notone of the distinct chemical groups to which hormones belong?
A. Steroids
B. Proteins
C. Peptides
D. Carbohydrates
E. Amines
6. Which of the following hormones isnot paired correctly with its target organ?
A. Oxytocin

1) How does the circulatory system viewed in the squid differ from that viewed in other molluscs? What advantage does this confer? What route does blood follow as it moves through the squid? Start at the systemic heart.

2) Describe the route that water follows as it passes through a clam starting from the incurrent siphon and finishing with the excurrent siphon

3) What is adaptive radiation? Identify two examples of adaptive radiation that you observed in lab today. Be specific and speculation on the advantages conferred in each example.

4) Members of such a large and diverse phylum as Mollusca impact humans in many ways. Discuss this statement. 500 words max.

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