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Verizon [17]
2 years ago
10

HELPPPPP MEEEEEEEEEEE​

Biology
1 answer:
Daniel [21]2 years ago
8 0

Answer:

the image is low quality-..

Explanation:

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Which of the statements about half-life are true?
Oksana_A [137]

The statements which are true about half-life are given below:

  • A radioactive element's half-life stays the same when its temperature changes.
  • A radioactive element's half-life stays the same when the pressure upon it changes.

Thus, the correct options are B and F.

<h3>What is Half-life?</h3>

The half-life of any radioactive element may be defined as the time taken for the radioactivity of a specified isotope to drop to half of its original value.

The above statement is true about the half-life of any radioactive element because the half-life of any substance does not depend on pressure, temperature, and concentration.

Therefore, it is well described above.

To learn more about Half-life, refer to the link:

brainly.com/question/2320811

#SPJ1

6 0
2 years ago
Bryophytes never formed forests (mats, yes, but not forests) because ________. a. they possess flagellated sperms.
maria [59]

Answer:

c. They lack lignified vascular tissue

Explanation:

We know that forest consists of tall trees. In the tall trees the water and minerals are transported to the every part of tree through the lignified vasucular tissue. This tissue not only helps in transport within the tree but also provides some sort of mechanical strength due to the presence of lignin it its walls. On the other hand bryophytes are non-vascular plants which means they lack vascular tissue and thus a mechanism for long distnace transport of water and minerals is absent in them. So they can't be taller as a tree and thus can't form forest.

8 0
3 years ago
25 POINTS!! WILL MARK AS BRAINLIEST!!!!
Paha777 [63]

1 -

If the carrynig capacity of an area is 945, and it is carrying 1.100 individuals, what most likely will happen is that we'll see a decrease in the deers population, until it matches the carrying capacity. This will occur because there wont be enough resources available for all individuals.

Answer:

E.

2 -

The biotic and abiotic limitations are what determine the carrying capacity of a population. Which in other words is simply the amount of living and non-living things that can occupy an area.

If you get a wagon, and say the carrying capacity of that wagon is 100 people, you'll be counting the number of seats (number of people that can sit), the number of people that can stand plus non-living factors such as the space occupied by the seats, metal bars, etc.

Answer:

C.

Image 1-

Exploitation - you usually here this term being used with minerals in stuff, but it can also occur with animals through excessive hunting and poaching.

Invasive species - these are species that are introduced into an ecosystem they do not belong to, and therefore, most of the time cause a lot of damage and some of this damage can be irreveersible, like the extinction of species.

Answers:

B and C.

Image 2 -

There is not much to think about it this image. The regions with a very high threat posed by the invasive species are the ones that will suffer the most.

Answer:

North-American square.

Image 3-

Insects do not go out in windy or rainy days, also because these tend to be cold days.

Insects prefer sunny days, and cloudy days only if the temperature is hot.

Answer:

First week - Wednesday.

Second week - Monday, Friday and Saturday.

Hope it helped,

BioTeacher101

3 0
3 years ago
Read 2 more answers
What do we call Earth's orbit around the Sun?
fgiga [73]

Answer:

Earth's revolution

<h2>How do we know that the earth orbits the sun?</h2>

If you study the stars and know where all the planets on the solar system are, you will notice that those stars alternate their motion in the sky, which means they do not orbit the Earth. In fact, the word "planet" originally means tricky star, suggesting that those "stars" did not behave like other normal stars.

The theory of universal gravity cannot be denied, since we are able to send satellites to outer space and have them orbit our plant. In fact, we are able to derive equations to figure out how fast the satellite need to orbit around the earth in relation to how high above the surface of the earth it is. The same mathematics that derived said information had also been used to derive the geosynchronous height from the Earth, which is the height at which a satellite orbiting the Earth, with the necessary speed to stay in circular orbit (not elliptical orbit), matches the Earth's rotation about its axis. Geosynchronous satellites are used for T.V. broadcasting and many other applications.

The formula for universal gravitation is GMm/r2, which means that the force of gravity on an object by another object are proportional to the masses of both objects, and inversely proportional to the square of the distance between them, and this proportion is multiplied by a constant G. It makes greater sense that the Earth revolves around the Sun, and not the other way around, because the mass of the Earth is way too small to apply a force strong enough to create a large enough acceleration on the sun to keep it in orbit around the Earth. If the Earth had enough mass to cause that huge of a gravitational force, then the moon will not remain in orbit around the Earth, but will fall closer the Earth and hit the Earth.

<h2 /><h2>What is the revolution of a planet?</h2>

The process through which a planet, let's say the earth, revolves around a huge mass that is significantly larger than the planet, such as the sun or any star. And the gravity between the two bodies is what causes this process to occur.

7 0
1 year ago
Type your response in the box.
Naddik [55]

Plato answer:

We know that people develop different bone densities. Because women tend to develop less-dense bones than men, they are more likely to experience serious bone loss as they age. We also know that people with thin body frames also tend to have lower bone density, which may put them at risk for osteoporosis as they age.

8 0
3 years ago
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