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Liono4ka [1.6K]
3 years ago
12

Explain how changes in land use can impact an ecosystem.

Biology
2 answers:
jeka57 [31]3 years ago
8 0
It can be good or bad. Animals houses could be built or destroyed. Pollution. Or cleaner water. Etc etc
Nimfa-mama [501]3 years ago
7 0
<span>the discovery and study of ocean floor contours. bathy- "deep" & meter- "measure"</span>
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You decide to create a composting bin for your house. While checking on it one day, you notice that the compost bin has started
dalvyx [7]

Answer:

Turning the pile to aerate the compost and expose it to oxygen will help resolve the smell

4 0
2 years ago
"Consider the reproductive isolating mechanisms described above. Do any of these apply to human beings? Write a few paragraphs i
8090 [49]
Reproductive isolating mechanisms are barriers which impeded mating (prezygotic) or prevent the hybrid from developing properly (postzygotic) but the overall effect is to cause speciation by making it difficult for two diverging species to share genes. So one kind of mechanical isolation could be the usage of contraceptives. As of temporal isolation, or behavioral isolation could be exemplified by people who suffer from diseases that cause separation (such as HIV or cancer). I hope that this is the answer that you were looking for and it has helped you.
3 0
3 years ago
Place the following events of muscle excitation in the correct order.
svetlana [45]

An motion potential in the presynaptic cell activates calcium channels. Ca+ triggers the discharge of Acetylcholine through exocytosis. Ach binds its receptors in the postsynaptic membrane, opening Na+ channels. The Order is 4, 3, 5, 1, 2.

The principal frightened system generates an motion potential that travels to the goal activating the calcium channels ⇒ event (4)

Calcium triggers vesicles fusion to the presynaptic membrane. By exocytosis, vesicles release the neurotransmitter -Acetylcholine- into the synaptic space ⇒ event (3)

Once there, Ach binds to its receptors on the postsynaptic membrane of the skeletal muscle fiber, causing ion channels to open ⇒ event (5)

Positively charged sodium ions move the membrane to get into the muscle fiber (sarcoplasm) and potassium leaves the cell ⇒ event (1)

The distinction in charges, resulting from these ions' transport, positively charges the fiber membrane. The postsynaptic cell depolarizes ⇒ Event (2)

The motion potential enters the t-tubules depolarizing the internal part of the muscle fiber. Contraction initiates while the motion potential depolarizes the internal part of the muscle fiber. Calcium channels spark off in the T tubules membrane, releasing calcium into the sarcolemma.

At this point, the muscle is at rest, and the tropomyosin is inhibiting the appeal strengths between myosin and actin filaments. Tropomyosin is obstructing binding sites for myosin on the skinny filament.

When calcium enters the sarcolemma, it binds to troponin C, and troponin T alters the tropomyosin role through shifting it and unblocking the binding sites.

Myosin heads be a part of the uncovered actin-binding points forming move-bridges, and whilst doing so, ATP turns into ADP and inorganic phosphate, that's released.

Myofilaments slide impulsed through chemical energy accumulated in myosin heads, generating a strength stroke. The strength stroke initiates while the myosin move-bridge binds to actin. As they slide, ADP molecules are released. A new ATP hyperlinks to myosin heads and breaks the bindings to the actin filament.

Then ATP splits into ADP and phosphate, and the energy produced is gathered in the myosin heads, which begins offevolved a new binding cycle to actin.

Finally, Z-bands are pulled towards every other, and the sarcomere and the I-band get shorter, generating muscle fiber contraction.

According to those steps, the appropriate order of activities is 4, 3, 5, 1, 2.

To learn more about Acetylcholine, click here:

brainly.com/question/13821381

#SPJ4

7 0
11 months ago
What type of joint is represented by the epiphyseal plate in the long bones of young children?a. Cartilaginous symphysis b. Fibr
Andrej [43]

Answer:

D) Cartilaginous synchondrosis

Explanation:

Cartilaginous synchondrosis is a joint in which the bones are joined to the hyaline cartilage or the hyaline cartilage joins the bones.

The synchondrosis is of two types- the temporary and permanent synchondrosis in which the temporary synchondrosis represents the growth plate or epiphyseal plate of the hyaline cartilage which connects the shaft of the bones to the end of the bone.

The thickness of the epiphyseal plate in the children does not change as the bone lengthens.

Thus, D) Cartilaginous synchondrosis is the correct answer.

4 0
3 years ago
a ten mile area of trees are removed from the tropical rainforest. how will this affect the amount of water and the amount of th
Ira Lisetskai [31]
Https://cms.springbranchisd.com/Portals/280/staff/robertsh1/2.19%20tuesday.pdf?ver=2013-02-19-125747...
6 0
2 years ago
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