BIOLOGY MIDDLE SCHOOL

What dose the xylem do

Answers

Answer 1
Answer:

Xylem is one of the two types of transport tissue in vascular plants, phloem being the other. The basic function of xylem is to transport water from roots to stems and leaves, but it also transports nutrients.
Answer 2
Answer:

Answer:

it helps in transport of water and minerals vertically(only in one direction)

Explanation:

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Is an insertion a point mutation or frameshift mutation?

Answers

Answer:

A frameshift mutation is produced either by insertion or deletion of one or more new bases. Since the reading frame begins at the start site, any mRNA produced from a mutated DNA sequence will be read out of frame after the point of the insertion or deletion, yielding a nonsense protein

Explanation:

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Why is Gregor Mendel considered to be "The Father of Genetics"

Answers

He was the first person to figure out genetics well enough to be able to predict the results of crosses that he made.

What happens when an atom gets excited

Answers

Answer:

When an electron absorbs energy, it jumps to a higher orbital. An electron in an excited state can release energy and 'fall' to a lower state. When it does, the electron releases a photon of electromagnetic energy.

Explanation:

Which statements are true about the flow of blood in the body? Check all that apply.Blood picks up oxygen from the cells of the body.
Blood delivers carbon dioxide to cells in the body.
Blood picks up carbon dioxide from the cells of the body.
Blood flows from the heart to the lungs to pick up oxygen.
Blood delivers sugar and nutrients to cells in the body.
Blood flows from the lungs to the heart to pick up oxygen.

Answers

The statements 'Blood picks up carbon dioxide from the cells of the body', 'Blood flows from the heart to the lungs to pick up oxygen' and 'Blood delivers sugar and nutrients to cells in the body' are TRUE.

  • The blood contains red blood cells that bind to oxygen in order to transport it to all cells of the body.

  • Red blood cells contain hemoglobin which is a protein required to bind oxygen and carbon dioxide.

  • Moreover, red blood cells also transport nutrients such as simple carbohydrates which are required to carry out cellular respiration.

In conclusion, the statements 'Blood picks up carbon dioxide from the cells of the body', 'Blood flows from the heart to the lungs to pick up oxygen' and 'Blood delivers sugar and nutrients to cells in the body' are TRUE.

Learn more about blood transport here:

brainly.com/question/10606295

Blood picks up carbon dioxide from the cells of the body.

Blood flows from the heart to the lungs to pick up oxygen.

Blood delivers sugar and nutrients to cells in the body.

1. What causes MOST of the ocean currents on the surface of the ocean?2. England is part of an island surrounded by ocean water.Why are temperatures mild in the winter and cooler in the summer than other countries, not surrounded by water? Explain your answer.

Answers

1) The wind (the prevailing wind)
2) The sea takes a lot longer to warm up than the land and so does not get to its warmest until late autumn in the UK, once it has had the entire summer to get warmer. However, once the sea does warm it it stays warm for a lot longer than the land does as the land losses heat a lot more quickly. This means that in the winter when the land has lost its heat the sea is still warm and so warms the land it is in contact with (not just the very edges, quite far into the landmass is warmed even if only slightly). As the UK is an island a high proportion of its landmass is located fairly close to the sea so will be warmed during the winter. This causes the UK to be slightly warmer in the winter than countries which are not surrounded by water as the land of these countries will lose heat just as fast but not be warmed by the seas retained heat.
An ocean current is a continuous, directed movement of seawater generated by forces acting upon this mean flow, such as breaking waves, wind, the Coriolis effect, cabbeling, and temperature and salinity differences, while tides are caused by the gravitational pull of the Sun and Moon. Depth contours, shoreline configurations, and interactions with other currents influence a current's direction and strength.

Ocean currents flow for great distances, and together, create the global conveyor belt which plays a dominant role in determining the climate of many of the Earth’s regions. More specifically, as ocean currents influence the temperature of the regions through which they travel, warm currents increase the temperature of the coasts along which they move and sea breezes that blow over warm currents are in turn warmed and absorb moisture. Perhaps the most striking example is the Gulf Stream, which makes northwest Europe much more temperate than any other region at the same latitude. Another example is Lima, Peru where the climate is cooler (sub-tropical) than the tropical latitudes in which the area is located, due to the effect of the Humboldt Current.

Anderson and his lab partner each held a tuning fork, 4440 Hz, in their hands. Anderson tapped his tuning fork with a mallet and they listened to the sound it made. "Wait a minute!" exclaimed Anderson's partner. "My tuning fork is vibrating too!" Sure enough, both tuning forks were vibrating although only Anderson hit his with the mallet.what wave property caused the second tuning fork to vibrate?
a) diffraction
b) interference
c) refraction
d) resonance

Answers

Resonance: the effect of an object vibrating at a specific. preferential frequency
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