Which generalized equation represents a synthesis reaction?

A 5 km by 5 km plot has a weed count of 250 weeds. What would the population density be for the exact same plot six months later

Rasek [7]

So 200/25 is equal to 8, and because of that, the plot has 8 weeds per square kilometer.

6 0

3 years ago

Put the following stages in order: G2,G1, S, mitosis, cytokinesis.

Oliga [24]

G1, S, G2, Mitosis, Cytokinesis

Just did this yesterday lol hope it helps

3 0

3 years ago

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Is there a mammal that lays eggs

Bess [88]

Yes, there are mammals that lay eggs instead of giving birth to a live young. These mammals are called Monotremes. One best example to this is the platypus and echidnas. Platypus, which is also known as the duck-billed platypus, is a semiaquatic egg laying mammal. Echidnas on the other hand are also called as spiny eaters. Echidna and platypus are only the surviving members of the Tachyglosside. And are the sole extant egg laying mammal

8 0

3 years ago

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ANYONE PLSSSS!!!!

Tatiana [17]

Answer:

There are many invasive animal sand plants which are harmful for native flora and fauna. Some of the invasive or alien species are as following:

1. The Nile Perch: Nile Perch is a type of fish which is native to African lake and river systems but if it is introduced in other countries lake it can be dangerous to other fishes in that lake. It was earlier introduced to Lake Victoria but after sometime it was evaluated that native fishes got extinct and the Nile Perch become very huge in size.

2. The cotton whitefly: Cotton whitefly are native to India but now can be found on most of the continents and have very bad impact on the fauna or agricultural plants. They have capability of transmitting upto 100 different plant viruses. find them thriving

3. The desert locust: The desert locust is a species of locust which can fly and are one of the most disastrous migratory pests in the world. They feed over green green vegetation, including pasture, crops and fodder. They have very bad impact on native flora as they are migratory pests. They are found in Africa and migrated to nearby countries such as India and damages the native flora.

4. European starlings: European starlings are the bird species which fight with native species for food and shelter. They are found in Alaska and Mexico and proved invasive in U.S. as the number of native birds decreased with their introduction.

4 0

3 years ago

The structure of the cell membrane allows it to be selectively permeable. What is the name for the larger, brown structure in th

Anika [276]

Explanation:

B) protein channel

Lipids are composed of fatty acids which form the hydrobic tail and glycerol which forms the hydrophilic head; glycerol is a 3-Carbon alcohol which is water soluble, while the fatty acid tail is a long chain hydrocarbon (hydrogens attached to a carbon backone) with up to 36 carbons.

Their polarity or arrangement can give these non-polar macromolecules hydrophilic and hydrophobic properties. Via diffusion, small water molecules can move across the phospholipid bilayer acts as a semi-permeable membrane into the extracellular fluid or the cytoplasm which are both hydrophilic and contain large concentrations of polar water molecules or other water-soluble compounds. The hydrophilic heads of the bilayer are attracted to water while their water-repellent hydrophobic tails face towards each other- allowing molecules of water to diffuse across the membrane along the concentration gradient.

Transmembrane proteins are embedded within the membrane from the extracellular fluid to the cytoplasm, and are sometimes attached to glycoproteins (proteins attached to carbohydrates) which function as cell surface markers. Carrier proteins and channel proteins are the two major classes of membrane transport proteins.

Carrier proteins (also called carriers, permeases, or transporters) bind the specific solute to be transported and undergo a series of conformational changes to transfer the bound solute across the membrane. Transport proteins spanning the plasma membrane facilitate the movement of ions and other complex, polar molecules which are typically prevented from moving across the membrane.
Channel proteins which are pores filled with water versus enabling charged molecules to diffuse across the membrane, from regions of high concentration to regions of lower concentration. This is a passive part of facilitated diffusion

Learn more about membrane components at brainly.com/question/1971706

Learn more about plasma membrane transport at brainly.com/question/11410881

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4 0

3 years ago