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PtichkaEL [24]
3 years ago
10

Darwin originally defined evolution as _____. ( concept 19.1)

Biology
1 answer:
n200080 [17]3 years ago
4 0
Here is the answer that would best complete the given statement above. Charles Darwin originally defined evolution as <span>descent with modification. Charles Darwin is known to be the father of evolution. Hope this answers your question. Have a great day ahead!</span>
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The diagram shows a food chain from a forest ecosystem.
Oduvanchick [21]

If there are 250,000 kilocalories (kcal) of energy in the grasses, approximately how many kcal of energy are in the mice is 2.5 kcal.

<h3>What is Trophic degree? </h3>

This is described as the location of an organism withinside the meals chain. Energy waft withinside the atmosphere includes 10% of the electricity withinside the decrease trophic level being transferred to the following trophic degree.

  • In this situation grass belongs to the primary trophic degree.
  • Energy of grass (degree 1)=250c Kcal Level 2 = 10/100 * 25000Kcal = 2500 Kcal.
  • Level 3 = 10/100 * 2500Kcal = 250Kcal
  • Level 4=10/100*25=2.5 Kcal.

Read extra approximately Trophic level:

brainly.com/question/1236573

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3 0
2 years ago
How much of the world does the tropical rainforest biome currently cover?
kykrilka [37]

Answer:

13 percent

Explanation:

4 0
3 years ago
Give two examples of equations for the synthesis of transuranium elements by transmutation
KATRIN_1 [288]

 

Atomic numbers greater than 93. Produced in a laboratory by induced transmutation, Elements immediately following uranium in the periodic table. They have atomic numbers 93 and greater. all transuranium elements have been produced in the laboratory by induced transmutation and are radioactive

6 0
3 years ago
The condition caused by a parasite living off another organism:
jonny [76]
I believe the condition is infestation. Infestation is the state of being invaded or overrun by pests or parasites. It can also refer to the actual organisms living on or within a host. For example being invaded by ectoparasites such as lice, mites, or ticks.  It may also refer to the presence of an unusually large number of insects or animals in a place, typically so as to cause damage or disease.
6 0
4 years ago
At the end of meiosis i, there are two haploid cells, each with two sister chromatids per chromosome. True or false?.
jok3333 [9.3K]

True.

At the end of meiosis I, there are two haploid cells.

<h3>What is the process of meiosis I?</h3>

Meiosis I refers to the initial nuclear division that takes place when gametes are formed. Due to the fact that the resulting cells have half as many chromosomes as the parent cell, it is also referred to as the reduction division. Prophase I, Metaphase I, Anaphase I, and Telophase I are the four phases that make up Meiosis I.

Prophase I:

The chromosomes condense during prophase I and become apparent inside the nucleus. Following this chromosomal condensation, each chromosome pair's members align adjacent to one another and are referred to as homologous chromosomes because of their identical size and gene content.

At this stage, a mechanism known as synaptic attachment occurs between the two chromosomes in each pair along their lengths. Then, while the homologous chromosomes are tightly coupled, the individuals within each pair cross over, also known as recombination, to exchange neighboring pieces of DNA. The nuclear membrane eventually starts to deteriorate after the conclusion of prophase I.

Metaphase I:

Microtubules leave the spindle at the beginning of metaphase I and join the kinetochore close to the centromere of each chromosome. In specifically, microtubules from one spindle side bind to one chromosome while those from the other spindle side adhere to the other chromosome in each homologous pair. The chromosomal pairs subsequently align themselves along the equator of the cell, forming the metaphase plate, with the assistance of these microtubules.

Anaphase I:

The homologous chromosomes are separated during anaphase I by the disintegration and contraction of the microtubules, which causes the two chromosomes in each pair to be drawn toward the opposite ends of the cell. Because of this division, each daughter cell that emerges from meiosis I will have half as many chromosomes following interphase as the original parent cell. Additionally, each chromosome's sister chromatid still has a connection.

Telophase I:

In telophase I, the cytoplasm organizes and separates into two as the new chromosomes approach the spindle. Now there are two cells, and each one has half as many chromosomes as its parent cell did. The recombination that took place during prophase I also caused the two daughter cells to not be genetically identical to one another.

Learn more about meiosis I here:

brainly.com/question/2095046

#SPJ4

6 0
1 year ago
Read 2 more answers
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