Use the extended life table to answer the question. What is the generation time of the Brazil nut (in decades, don't convert to years)?XNxlxdxqxmxNumber aliveAge Interval(decades)at beginningage intervalProportionof Surviving tobeginning ofage intervalNo. of Brazilnuts dyingduring theintervalMortality ratefor individualalive at start of.age intervalAveragenumber ofseed perindividual ofstage x100018000.800.02000.21600.802.7400.0410.0319.9390.039230.5922.7160.016161.0022.912345

A life table is a summary of a population's survival and reproductive rates, broken down by age,…

Answered: Age Interval (decades) 123 + 2 4…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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9. According to the figure, the predominant plant in an open site is roughly size. Adult 3 Category Plant size (area in cm²) Stage Adult 2 Seedling 0.5-5 5.1-35 Cotyledons present Nonreproductive Juvenile Adult 1 35.1-200 Potentially reproductive Adult 1 Adult 2 200.1-600 Potentially reproductive Adult 3 Larger than 600 Potentially reproductive Juvenile Seedling Adult 3 Adult 2 Adult 1 Juvenile Seedling 0.5 Proportion of population (b) A) larger than 600 B) 200.1-600 C) 5.1-35 D) 0.5-5 10. The demographic age pyramid of a rapidly growing population is A) wide at the base, narrow at the top. B) wide at the top, narrow at the bottom. C) wide at top and bottom, narrow in the middle. D) similarly wide from top to bottom. (a) 1.0 cm3 in
The drooping, bell-like flower Aquilegia canadensis is adapted for cross-pollination. However, if the plant has not been pollinated previously, self-pollination can occur. However, if cross pollination occurs after self-pollination takes place, the pollen from cross pollination reaches the style before the pollen from self-pollination. Using course concepts and vocabulary 1) Provide a reasoning for this phenomenon. 2) Would this adaptation for reproduction be beneficial for the plant?
Oryza rufipogon is the wild relative of cultivated rice. In its native SE Asia, annual and perennial populations can be found. Annual populations typically grow in aquatic habitats that dry out seasonally, while perennials typically grow in more permanent aquatic habitats. In their respective habitats, annuals produce narrower leaves than perennials. An experiment was conducted where annual and perennial seeds were grown together in a permanent aquatic habitat and demographic data on survival and fecundity were collected. The data are below: Annual seeds 1st year survival seeds per year 0.01 180 0.01 Adult survival rate Perennial seeds What additional data would you need to collect from this experiment to determine whether the differences in leaf shape described above have a genetic basis or are induced by the environment? What are your predictions if leaf shape differences are genetic? 90 0.0 0.4
When the average mass of individual plants in a stand is plotted against stand density (log-transformed), the slope of the relationship is very often around Multiple Choice -1/2. -1. +1/2. -3/2. +3/2.
Q8
The large and heavy seeds of the limber pine (Pinus flexilis) lack the wings on seeds characteristic of most pines. The seeds are the primary food source for Clark’s nutcracker which harvests seeds after the cones open. It then caches thousands of seeds each summer and fall in locations far from the original tree to eat later in the year. During years when many cones and seeds are produced, the nutcracker caches 3-5x the number of seeds actually eaten. When they are present, tree squirrels remove the cone before it opens before the seeds are fully developed, and will eat the seeds immediately or cache the cone for later consumption. Question: Scientists were interested to see whether the two seed harvesters would affect seed and cone traits. They compared cone and seed traits in areas that had nutcrackers but tree squirrels were either present or absent. Where squirrels were present, cone mass was larger but there were fewer seeds per cone, and smaller kernels per seed. What do the…
Using the illustration and the assumption that half of a plant's sperm and eggs are p and half are P, one can predict that the chance of sperm p meeting egg P at fertilization is ____. 25% 75% 1/2 x 1/4 50% 100%
Flowers and Trees Select an Exercise: 2 0 0 0 0 1000 800 600 400 200 Controls GO SM2 Peak G STEP STOP Peak 1 D RESET B D -Petal Tips Year Peak 7 808 Pelal Color C Anthers Sligmas Spur Color Growing Tree lools R -Spur length 1111 In the picture, what phenotypes differ among flowers on Peaks 3 and 4? Petal tips. Blade color and stripes. There are no different phenotypes. Blade color only. Stripes only. Peak 2 E lab notebook Peak 5 Close find bar COM Peak 3 A MM Peak 4 Blade Color Stripes
A fruit farm collected information on the fruit formed by three types of pollination on their farm over one year. The resulting data is shown in the graphs. Fruit pollination đdata 3.0 1.8 2.5 1.6- 2.0 1.5 1.4 250 1.2- 200 0.8- 150 0.4 ΚΕY artificial pollination open pollination (bees, other insects and wind) pollination by bees only After considering the data in the graphs and other factors, the decision was made to use 100% artificial pollination on the farm. Justify this decision in relation to the data provided and your understanding of artificial pollination. number of seeds per fruit fruit mass (g) average diameter (cm) (su) sseu pɔs
Gametophytes of the C-fern were described in Table 1 (p. 281) and their sporophyte offspring were described in Table 2 (p. 282). The following questions are based on the class data totals. 1. What was the proportion (frequency or percentage) of the dominant and recessive alleles in the gametophyte generation? 2. What was the proportion (frequency or percentage) of the dominant and recessive alleles in the sporophyte generation? 3. Using Hardy-Weinberg Equilibrium equation, what are the expected genotypes of the sporophyte generation in Hardy-Weinberg Equilibrium based on the population of the gametophytes? 4. Was this population in Hardy-Weinberg Equilibrium? If so, why is that expected? If not, what possible reason could explain the results? Table 1. Gametophyte phenotypes w et slagal Date data recorded 10/17/23doo beo neizivib loo in aqua te// Phenotype Description solid green polka dot Phenotype Description Solid green Group 1 69 58 Polka dot Number of Gametophytes Per Group Group…
Describe in simple terms and de

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