BIOLOGY HIGH SCHOOL

Which of these make up the vascular tissue

Answers

Answer 1
Answer:

Which of what makes up vascular tissue
Answer 2
Answer:

The answer is: phloem.

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Cells produced by the root and shoot tip meristems become the secondaryprimary tissues of the plant body.

When the Barrel and Saguaro cacti absorb moisture they store it _______. a. in their roots b. in their spines c. in the flesh of their barrels d. in underground root nodules

Answers

The right answer is c. in the flesh of their barrels

The globular and massive forms perfectly fulfill their role of storing the water in their thick cuticles, but in return will expose the plants to lethal overheating due to the small surface of heat exchange with the ambient air to evacuate the heat. from exposure to the sun.
C. The answer is c, because if you ever slash a cacti with a sword water will come out if it is hydrated. You don't need to cut the roots just the flesh of their barrels

An example of a secondary consumer is a _________.hawk (that eats a snake).
oak tree
panther (that eats a deer).
deer (that eats grass).

Answers

a panther because it eats the primary consumer which would be the deer.
an oak tree is the producer (bottom of the food chain)
the deer is the primary consumer because it eats grass which would also be a producer
and the hawk would be the top predator because it eats a snake which would eat a mouse which would feed on a producer :)

Which kind of tumor grows slowly

Answers

That answer is Benign

The suprachiasmic nuclei release growth hormone, which helps repair body tissues. report changes in light levels during the day and night to the optic nerve. are located in the brain stem. control falling asleep and awakening.

Answers

The answers would be the suprachiasmic nuclei would report changes in the light levels every day and night into the optic nerve. It also would control the falling asleep and awakening. It is located in hypothalamus and releases hormone and helps in metabolic rate.

Altitude is greater what what point

Answers

altitude is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object.

A plant's photoperiod is the amount of time each day that the plant receives sunlight. A plant with a 12L:12D photoperiod receives 12 hours of light and 12 hours of dark per day. A researcher investigated whether photoperiod affects the development of flower buds in chrysanthemums, a type of flowering plant. She maintained three samples of chrysanthemums that did not initially have any flower buds under different photoperiods. After two weeks, the researcher recorded the presence or absence of flower buds in each sample. The researcher's results are shown in the table. Sample Photoperiod Results 1 13L:11D fully developed flower buds formed on all plants 2 14L:10D partly developed flower buds formed on some plants 3 15L:9D no buds formed on any plant Which statement is best supported by the researcher's findings?

Answers

Answer:

13L:11D

Explanation:

Based on the photoperiod there are two types of plants -  

a) Short day plant  

b) Long day plant

Here the term short and long day do not mean that the provided length of day are the critical length of day required for reproduction. But opposite to that it means that the length of the day required for reproduction must be  

a) Shorter than the defined length of day for short day plant  

b) And longer than the defined length of day for long day plant  

Chrysanthemums  is a short day plant and thus option 1 with 13L:11D will produce fully developed flower buds

Option A is correct 13L:11D

Final answer:

The researcher's findings illustrate that photoperiod greatly affects the development of chrysanthemum buds, with longer periods of light exposure reducing bud formation. The mechanism behind this is likely due to photoperiodism, a biological response that allows plants to regulate their growth based on day length.

Explanation:

The researcher's findings suggest that the photoperiod, or duration of light exposure, significantly impacts the development of flower buds in chrysanthemums. In the experiment, chrysanthemums with a 13L:11D photoperiod produced fully developed flower buds. In contrast, the plants with a 14L:10D photoperiod produced only partly developed buds and those with a 15L:9D photoperiod did not develop any buds. It is evident from these results that there is a decrease in bud formation with an increase in light hours. Chrysanthemums, therefore, seem to need a specific balance of light and darkness for optimal flower bud development.

The mechanism behind this is likely related to photoperiodism, a biological response to the timing and duration of day and night that controls flowering and other growth in plants. Plants use the phytochrome system to sense changes in day length, which is an essential indicator of season. This system allows them to regulate their physiological activities, such as flowering, accordingly. So, the results of this study underline the importance of photoperiodism in flowering plants.

Learn more about Photoperiodism here:

brainly.com/question/33473998

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