All categories

3 years ago

Which of the following is a density-independent factor affecting population growth?

Biology

1 answer:

MA_775_DIABLO [31]3 years ago

3 0

III only (floods and drought) is an example of density-independent factor affecting population growth.

<h3>WHAT IS DENSITY-INDEPENDENT FACTOR?</h3>

Certain factors affect the growth and multiplication of living organisms in populations. These factors can either be;

Density-dependent
Density-independent

Density-independent factors are those factors that are not dependent on the density of the population to affect them. These factors are usually physical factors of the environment like;

Disasters
Flood and drought
Earthquake etc.

Therefore, III only (floods and drought) is an example of density-independent factor affecting population growth.

Learn more about density-independent factors at: brainly.com/question/13712356

You might be interested in

True or false: Active transport is required to more particles from an area of lower

LUCKY_DIMON [66]

That is true. Active transport goes against the concentration gradient. Particles want to move from higher concentration to lower concentration and even out, but active transport makes them move against that.

7 0

3 years ago

How are humans and plants alike when it comes to obtaining energy and growing?

Damm [24]

We breath in oxygen and out carbon dioxide where plants breath in carbon dioxide and out oxygen. that is how we are alike when it comes to energy and like plants it takes time for us to grow.

hope this helps

8 0

3 years ago

Two cities are separated by 200 miles. City X has an altitude of 122 meters and City Y has an altitude of 260 meters. Calculate

OleMash [197]

Answer: 0.69 m/ mile.

Explanation:

The altitude gradient between two cities X and Y = $\dfrac{\text{Altitude of City Y - Altitude of city X}}{\text{Distance between two cities}}\times100\%$

Given: Two cities are separated by 200 miles.

City X has an altitude of 122 meters.

City Y has an altitude of 260 meters.

The altitude gradient between two cities X and Y =

$\dfrac{260-122}{200}=0.69\text{m/ mile}$

Hence, the altitude gradient between the two cites = 0.69 m/ mile.

8 0

3 years ago

Meiosis Foldable Activity 515.2

Aleksandr-060686 [28]

Explanation:

During the process of prophase I, the nuclear envelope containing chromosomes has only partly broken down homologous chromosomes are joined together by proteins and a complex or pairing call synapsis- corresponding genes on sister chromatids are aligned precisely.

The syanapsis allows for crossing over which is the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined.

Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. In meiosis, the number of chromosomes (2n) is halved to 23 chromosomes (haploid number)through meiotic divisions, producing 4 haploid (n) germ cells or gametes (sperm or eggs), each containing half the number of chromosomes as its parent cell.

In Meiosis I

homologs pair off into bivalents
At crossing over: the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined in prophase I forming bivalents; tetrads are formed.
Spindle fibers from centrioles join sister chromatids together at their centromeres in metaphase I, pulling them to the equator of the cell;
then, in anaphase I, while joined, they are pulled to opposite sides of the cell; the cell body splits and the nuclear envelope reforms in telophase I

In Meiosis II...

Later, in prophase II, the nuclear envelope disintegrates and mitotic spindle fibers are formed
independent assortment occurs. in metaphase II of meiosis: spindle fibers attach to centromeres, chromatids align independently at the equator. Genes segregate independently into new combinations as sister chromatids are pulled apart by their centromeres in anaphase II
in telophase II the cells' nuclei and membrane are then formed with each containing the haploid number (n)
Following the formation of gametes in the last stage, randomized fertilization occurs in sexual reproduction sperm cells fertilize an ovum to form a zygote. This occurs randomly by chance, to result in a complete set of chromosomes 2n, that is a novel combination of half each parent's number of chromosomes

Learn more about mitosis at brainly.com/question/4303192

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA at brainly.com/question/2416343?source=aid8411316

#LearnWithBrainly

4 0

3 years ago

Normally, the hydrostatic pressure difference between capillary fluid and interstitial fluid favors movement of fluid __________

timofeeve [1]

Answer:

out of

into

Explanation:

As pressure exerts force, Hydrostatic pressure is a type of force that occurs in fluid e.g (interstitial fluids) on the walls of the capillary. The helps to carry fluid-like materials out of the tissue capillary. There are quite bunch of relative factors affecting the hydrostatic pressure which include; the liquid density and distance beneath the liquid surface,force of gravity.

On the other hand, The protein osmotic pressure difference between capillary fluid and interstitial fluid normally favors movement of fluid into a tissue capillary. This protein substances consist of albumin, plasma protein etc. From our knowledge of osmosis as well, we knew it is the movement of substances through a semi-permeable membrane from the region of higher concentration to a lower concentration. Therefore the protein osmotic pressure bring about movement of fluid like substances into the tissue capillary.

7 0

3 years ago