2024 Botany Homework

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1. 

Which of the following is NOT cited as a reason to know the names of plants?

2. 

What class of plant is described as having “parallel veins, hollow round jointed stems, leaves long and flattened”?

3. 

What class of plant is described as having “parallel veins, solid non-jointed stems, leaves long and flattened”?

4. 

Which classes of plants contain both annuals and perennials, and always have parallel veins?

5. 

What class of plant has annual stems with showy flowers, fibrous roots and broad leaves?

6. 

What class of plant can be described as a perennial with woody stems, broad flat leaves and a netlike venation?

7. 

Raceme, corymb, spike, and cyme are all terms describing what?

8. 

Petiole, simple, compound, and pinnately compound are all terms describing what?

9. 

Roots make up what percentage of a plant's dry weight?

10. 

Texas bluebonnets can be classified in what two ways?

11. 

What is the main difference between annuals and perennials?

12. 

Thistles and Purple scabiosa are non-native invasive species that differ in what way from most native plants found in Texas rangelands?

13. 

A plant that decreases in abundance with grazing pressure is called a ____________, while a plant that first increases in abundance when grazed and then decreases with continued grazing pressure is called a ___________.

14. 

True or False: A native plant cannot be considered an invasive species.

15. 

True or False: Honey mesquite and prickly pear are non-native, invasive species.

16. 

True or False: Musk thistle and Chinese tallow are both listed on the TDA Noxious Weeds list.

17. 

True or False: Common bermudagrass is an invasive plant species in Texas, because it is non-native and can threaten the existence of native plants.

18. 

True or False: Invasive plants do not usually serve as a food source for native animals.

19. 

The only native plants of Texas that are regularly available in supermarkets are_____________.

20. 

Plants covered by Executive Order 13112 include __________.

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