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Soloha48 [4]
3 years ago
9

Which causes natural selection to occur?

Biology
2 answers:
Serjik [45]3 years ago
6 0

Answer:

c. Presence of predators

Explanation:

Ainat [17]3 years ago
3 0

Answer:

Natural selection can occur by A

Explanation:

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Why is it beneficial to use textiles made from synthetic fibers
mestny [16]
Synthetic fabrics<span> are </span>textiles made<span> from man-</span>made fibers<span> rather than natural </span>fibers. Chemically produced fabrics<span> are </span>made<span> by joining monomers into polymers, through a process called polymerization. A </span>synthetic fabric<span>, when magnified, looks like plastic spun together.</span><span>

Natural fabrics, such as cotton, silk, and wool, are made from animals or plant based fibers. While synthetic are man made and produced entirely from chemicals to create fabrics. such as polyester, rayon, acrylic, and more. The benefits of using textiles made from synthetic fibers is that it saves the animals and plants that the fibers are based off of. 

Hope this helped :)

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5 0
3 years ago
Why is it important to have both negative and positive feedback loops in the body
ELEN [110]

Answer: positive feedback loops enhance or amplify changes. this tends to move a system away from its equilibrium state and make it more unstable. Negative feedbacks tend to dampen or buffer changes. this tends to hold a system to some equilibrium state making it more stable.

Explanation:

7 0
2 years ago
9. a) How does hydrogen bonding help the transport of water in plants?
grigory [225]

Answer:

Water has a high Cohesion because of Hydrogen bonding. This is important as transport of water in the Xylem in plants relies on water being pulled up. Cohesion also gives the water a high surface tension, allowing small organisms, such as Pond Skaters, to walk along it.

Explanation:

Water molecules forming hydrogen bonds with one another. The partial negative charge on the O of one molecule can form a hydrogen bond with the partial positive charge on the hydrogens of other molecules. Water molecules are also attracted to other polar molecules and to ions.

Plants obtain the hydrogen they need from water molecules. Don't try to feed your plant hydrogen gas -- your plant wouldn't know what to do with it if you did. As long as they have water, plants can readily obtain all the hydrogen they need. :)

6 0
2 years ago
Which of the following embryonic materials is matched with a correct post-natal (after birth) derivative? (Chose the most correc
Vlad [161]

Answer: Option B.

Neural crest and peripheral nervous system.

Explanation:

Neural crest are bilateral paired cells of the neural tube that arise from the ectoderm layer of the embryo. Thesescells move to different part of the body and differentiate into various cell types like melanocytes,cartilage and bone, smooth muscle, craniofacial, neurons, gangalia e.t.c. The neural crest running through neural tube develop into peripheral nervous system after birth. Peripheral nervous system consist of neurons and gangalia outside the nervous system The peripheral nervous system connect the central nervous system to organs, skin and limbs.

8 0
3 years ago
Through what process might the water have changed and moved before and after the dinosaur drank it?
maksim [4K]

Answer:

The water we drink now was the same water the dinosaurs drank. Discuss how the water cycle makes this statement accurate. Include different parts of the water cycle and what processes help move the water through each part.

8 0
2 years ago
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