FREE Trial

Why were many modern genera of dicots initially thought to have come suddenly into existence about 130 million years ago?

Question:

Why were many modern genera of dicots initially thought to have come suddenly into existence about 130 million years ago? Why do we now think that those  leaf fossils do not really belong to the modern genera they were named for?

This problem has been solved!


Do you need an answer to a question different from the above? Ask your question!

Step by Step Answer:

Answer rating: 75% (4 reviews)

Many modern genera of dicots were initially thought to have come suddenly into existence about 130 million years ago due to the discovery of leaf foss…View the full answer


answer-question
Answered By
tutor-profile-image
Chandrasekhar Karri
I have tutored students in accounting at the high school and college levels. I have developed strong teaching methods, which allow me to effectively explain complex accounting concepts to students. Additionally, I am committed to helping students reach their academic goals and providing them with the necessary tools to succeed.
0.00 0 Reviews 10+ Question Solved
Related Book For  answer-question
Botany An Introduction To Plant Biology

Botany An Introduction To Plant Biology

ISBN: 9781284077537

6th Edition

Authors: James D. Mauseth

See More Books
Question Details
Chapter # 23- Seed Plants II: Angiosperms
Section: Review Questions
Problem: 5
View Solution
Create a free account to access the answer
Cannot find your solution?
Post a FREE question now and get an answer within minutes. * Average response time.
Question Posted: August 29, 2023 02:16:07
See More Questions

Students also viewed these Sciences questions

Q:
The Crazy Eddie fraud may appear smaller and gentler than the massive billion-dollar frauds exposed in recent times, such as Bernie Madoffs Ponzi scheme, frauds in the subprime mortgage market, the...
A:
phase 1 Doesn t everyone At fourteen I began working at Crazy Eddie as a stock boy in 1971 I started off by stealing cash and inflating insurance loss claims This was how the firm operated and I never......
Q:
Planning is one of the most important management functions in any business. A front office managers first step in planning should involve determine the departments goals. Planning also includes...
A:
A hotel s target market is a specific subset of all hotel customers from whom a particular property seeks to obtain business This could be business travelers and families on vacation to a hotel near a......
Q:
Read the case study "Southwest Airlines," found in Part 2 of your textbook. Review the "Guide to Case Analysis" found on pp. CA1 - CA11 of your textbook. (This guide follows the last case in the...
A:
Click to View...
Q:
Since perpetuity payments continue forever, how can a present value be computed? Why isnt the present value infinite?
A:
Equation is used to calculate the present value of a perpetuity It is a limiting version of......
Q:
This exercise uses the assumed Fast Delivery data from Short Exercise 7-4. Assume Fast Delivery is trying to decide which depreciation method to use for income tax purposes. The company can choose...
A:
1 Double declining balance DDB depreciation offers the tax advantage for the first year of an asset......
Q:
Faff plc. has announced a rights issue to raise 50 million for a new journal, the Journal of Financial Excess. This journal will review potential articles after the author pays a non-refundable...
A:
Answer Solution a The maximum possible subscription price is 40 Current price The mini......
Q:
A fraud may be perpetrated through an unintentional mistake. (True/False)
A:
False Fraud typically involves intentional deception or manipulation with th......
Q:
Should citizens be concerned if the pension plan funding measure decreases over time? Why?
A:
Yes citizens should consider a decrease in the ratio of fair value of pension plan assets to the act......
Q:
a 2.25 m ^2 theemopane window consists kd rel glass panes each 0.75 cm thick with a 0.50 cm thick sealed layer of nitrogen gas in between. k = 0.8 J/(s m C), knitrogen = 0.0234 J/(s m C). if the...
A:
To calculate the rate of energy transfer through a double pane window you ll need to consider the th......
Q:
What is meant by a closed carpel as opposed to an open cone scale?
A:
A closed carpel and an open cone scale refer to different reproductive structures found in different types of plants closed carpels are associated wit......
Q:
During fertilization in flowering plants, one sperm cell nucleus fuses with the egg nucleus, producing the diploid zygote. The other sperm nucleus fuses with the ___________________________________,...
A:
During fertilization in flowering plants One sperm cell nucle......
Q:
In each of the following cases, use the information provided about the 2023 operations of Prestige Water Corp. to calculate the indicated cash flow: Case A: Calculate cash received from customers:...
A:
Case A Sales revenue Accounts receivable December 31......
Q:
Using values of f H and S, calculate r G for each of the following reactions at 25C. (a) 2 Na(s) + 2 H 2 O() 2 NaOH(aq) + H 2 (g) (b) 6 C(graphite) + 3 H 2 (g) C 6 H 6 () Which of these reactions...
A:
To determine the standard Gibbs free energy change rG for each of the reactions at 25C you can use t......
Q:
A distillation column is initially designed to separate a mixture of toluene and xylene at around ambient temperature (say, 100C) and pressure (say, 1 barg). The column has 20 stainless steel valve...
A:
To determine the purchased cost and the bare module cost of the distillation column designed to sepa......
Q:
Find the derivative of the function. g(x) = (2ra rx + n) P
A:
Let g x Q P where Q 2ra rx n Differentiating both sides w r t x we get d......
Q:
Your company is considering modifying an existing distillation column. A new reboiler and condenser will be required, along with several other peripherals. The equipment lists are as follows: The...
A:
To determine which option to recommend we ll calculate the Net Present Value NPV for each option based on the installed cost operating cost equipment......
Q:
Your firm faces considerable revenue uncertainty because you have to negotiate contracts with several customers. You forecast a 20 percent chance that your revenues will be $200,000, a 30 percent...
A:
Open Excel and create a new worksheet In the first column create a tree structure to represent your......
Q:
Cottrell Company manufactures three products. Gross margin computations for these three products for 2012 are given below. Cottrell has reexamined the factors that cause its manufacturing overhead...
A:
1 Total manufacturing overhead for 2012 is 450 000 225 000 75 000 150 000 The total number of produc......
Q:
Draw a Feynman diagram for the reaction n + v p + .
A:
Since leptons are involved the re......
Q:
The distribution in wavelengths of the light emitted from a radiating blackbody is a sensitive function of the temperature. This dependence is used to measure the temperature of hot objects, without...
A:
at 675 K max for 1150 K and 6......
Q:
A beam of electrons with a speed of 5.25 10 4 m/s is incident on a slit of width 200. nm. The distance to the detector plane is chosen such that the distance between the central maximum of the...
A:
The diffraction minima satisfy the condition Sin n a n 1 2 and the first minimum......
Q:
If an electron passes through an electrical potential difference of 1 V, it has an energy of 1 electron-volt. What potential difference must it pass through in order to have a wavelength of 0.300 nm?
A:
The electron must pass through......
Fundamentals Of Quantum Information 1st Edition - ISBN: 981432423X - Free Book