Answer:
A wake
Explanation:
Wake is the brief glow behind the meteor head. The wake is caused mainly by the green light of neutral oxygen atoms. Wakes last 1-10 seconds. Sometimes the term wake is also used to describe the area directly behind the meteor head.
Answer:True
Explanation: plants which lack vascular tissue is known as non-vascular plants. Vascular tissues consist of Phloem and Xylem.
Xylem vessels transport water and mineral through the plants while phloem vessels transport nutrients and products of photosynthesis via the plant.
Non vascular plants lacks features like Bark, so they do not grow very tall, they remain low on the ground. Examples include; mosses, liverworts etcetera.
In the spermatheca, females of many insect species, including honeybee queens, can store gametes secreted by their sex partners.
<h3>What is Spermatheca ?</h3>
The female insect's spermatheca is an ectodermal structure that receives, stores, and releases sperm for egg fertilization. According to the species, spermathecae differ in size and shape.
- They often come from the median oviduct, which is located close or on the genital chamber. A secretory duct called the ductus seminalis connects the spermathecal sac, also known as the receptaculum seminis, to the genital chamber, where the sperm are released.
- The number of spermathecas varies among taxa, however the majority of insects only have one. Depending on the species of insect, the spermatheca has different morphologies. The spermatheca is composed of the spermathecal gland, duct, and reservoir. Both of these fluids feed the sperm. Both the spermathecal glands and the male accessory glands secrete substances that feed the sperm.
So lastly we can say that, t females of many insect species, including honeybee queens, can store gametes shed by their mating partners in - the spermatheca.
To know more about Spermatheca please click here : brainly.com/question/9748392
#SPJ4
The work done by the shark is 128000 J which is greater than the maximum force the cage can withstand (124500 J), the man in the cage should be worried.
<h3>What is work done?</h3>
Work done is the product of force and the distance covered by the force.
Mathematically;
- Work done = Force × distance
The unit of work done is Joules.
The work done by the shark is calculated as follows:
Work done = 12800 × 10
Work done = 128000 J
Maximum force the can withstand = 124500 J
Since the work done by the shark is greater than the maximum force the cage can withstand, the man in th cage should be worried.
Learn more about work done at: brainly.com/question/25573309
The correct options are, frying an egg and burning candle.
Explanation :
Physical change : It is a change in which no new compounds are formed only changes occurs in size or state of substance. In this, there is no changes in the substance or compound.
Chemical change : It is a change in which a new compounds are formed by the chemical reaction. Changes occurs in their chemical composition and properties.
Frying an egg : It is a chemical change because a new substance is form by heating.
Burning a candle : It is chemical change because new substances are formed (carbon dioxide, water and heat) by burning.
Boiling alcohol : It is physical change because only changes in the state.
Melting and ice : It is a physical change because only changes in the state.
Making coffee : It is a physical change because no new substance is formed.
Therefore, frying an egg and burning candle are the example of chemical change.
