An invasive species is defined as the organism that is not indigenous, or native, to a particular area. Invasive species can give rise to great economic and environmental harm to the new area.
Native species is defined as species which originated and developed in its surrounding habitat and has adapted to living in that particular environment.
Examples of invasive plant species are kudzu vine, English ivy, Japanese knotweed, etc. Animal examples are New Zealand mud snail, European rabbit, grey squirrel, carp, etc.
For more details regarding invasive species, visit:
#SPJ2
Answer:invasive
Explanation:
Answer: c
Explanation: THE REFRACTORY PERIOD OF CARDIAC MUSCLE IS LONGER THAN SKELETAL MUSCLE
Cardiac muscle does not exhibit tetanus because it has a long absolute refractory period, electrical synapses, and relies primarily on aerobic respiration.
Cardiac muscle is a specialized type of muscle found in the heart. Unlike skeletal muscle, which can exhibit tetanus (sustained contraction), cardiac muscle does not. This is due to several factors.
Firstly, cardiac muscle has a long absolute refractory period. The absolute refractory period is the period of time during which the muscle cannot be stimulated to contract again. This refractory period allows the heart to relax and refill with blood before the next contraction. It prevents the muscle from being stimulated again before it has fully relaxed.
Secondly, cardiac muscle cells are connected by electrical synapses called gap junctions. These gap junctions allow electrical signals to pass quickly from one cell to another. This synchronized contraction prevents tetanus from occurring.
Lastly, cardiac muscle relies primarily on aerobic respiration. Aerobic respiration provides a steady supply of energy for contraction without the buildup of metabolic waste products that can lead to tetanus.
Learn more about cardiac muscle and tetanus here:
#SPJ14
a
It is moved by the wind toward dry areas.
b
It is incorporated into the exoskeletons of flying insects that eat plants.
c
It is inhaled and exhaled by birds roosting in trees during rainstorms.
d
It is carried by rain to the soil.
Most of the nitrogen fixed by lightning is made available to plants through d. rainwater carried to the soil.
When lightning occurs, the extreme heat breaks the bonds in nitrogen molecules, allowing nitrogen to combine with oxygen and form nitrogen oxides. These nitrogen oxides are then carried by rain to the soil, where they become available for use by plants. This process is known as nitrogen fixation, and it is an important step in the nitrogen cycle.
Thus, the fixation is a biological and chemical process where atmospheric nitrogen is converted into ammonia or other nitrogen compounds usable by plants. It's crucial for the nitrogen cycle and provides a vital source of nitrogen for plant growth, facilitated by nitrogen-fixing bacteria, lightning, or industrial processes like the Haber-Bosch method.
#SPJ2
Answer:
288 test tubes
Explanation:
Given,
Total chemistry classes = 3
The number of students in each classes = 24,
So, the total number of students in 3 classes = 3 × 24 = 72,
Also, each student to use 4 test tubes.
Therefore, the number of test tubes in 3 classes = 4 × 72 = 288,
Hence, 288 test tubes are needed in all for her classes.