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Assoli18 [71]
3 years ago
12

Which of these subjects is most likely to be studied in ecology

Biology
2 answers:
spin [16.1K]3 years ago
7 0

Answer:

D.

Explanation: Ecology: relation of organisms with one another or their surroundings.

frez [133]3 years ago
4 0

Answer:

d

Explanation

D. the interaction between populations of wolves and deer

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Distinguish between first-generation pesticides and second-generation pesticides used by people to combat pests, and give an exa
Lady bird [3.3K]

Answer:

No short answer.

Explanation:

First and second generation pesticides differ vastly in terms of their contents and effects.

First generation pesticides were used in early 20th century up until the 1940's and they consisted chemicals such as mercury and lead which were not biodegradable and they started adding up in the soil until it was not fertile anymore. Second generation pesticides were divided into three groups as chlorinated hydrocarbon, organophosphates or carbamates and consisted of chemicals that were less harmful for the soil and did not accumulate over time. Some examples to second generation pesticides can be DDT or dimethoate.

Broad spectrum and narrow spectrum pesticides have the difference of effective range between them. Narrow spectrum pesticides are designed to target a specific organism such as a specific plant or an insect whereas broad spectrum pesticides are applicable to a wider range of organisms and still have the same effect for each.

Chitin Inhibitors can be given as an example of narrow-spectrum pesticides and the second generation pesticides in the answer can be given as an example of broad-spectrum pesticides.

I hope this answer helps.

6 0
3 years ago
How many chromosomes will be present in each of the new cells after the cell<br> divides?
motikmotik

Answer:     Explanation:

It is a two-step process that reduces the chromosome number by half—from 46 to 23—to form sperm and egg cells. When the sperm and egg cells unite at conception, each contributes 23 chromosomes so the resulting embryo will have the usual 46.

     Hope that helped you

7 0
3 years ago
Read 2 more answers
Which components make up most of the dry mass of a balanced diet?
masha68 [24]

Answer:

answer is B carbohydrates, fats and protiens

4 0
2 years ago
What type of immunity provides lifetime immunity for the body against a specific pathogen?
Tems11 [23]


The type of immunity that provides lifetime immunity for the body against a specific pathogen is called  acquired immunity.  It is also referred to as adaptive or specific immunity.

Acquired  immunity is not present at  birth. it is learned. As a person's immune system encounters foreign substances (antigens) the components of acquired immunity learn the best way to attack each antigen and begin to develop a memory for that antigen. Acquired immunity is also called specific immunity because it tailors its attack to a specific antigen previously encountered. Its uniqueness lies in its ability to learn, adapt and remember.

Acquired immunity takes time to develop after first exposure to a new antigen. However afterward, the antigen is remembered, and subsequent responses to that antigen are quicker and more effective than those that occurred after first exposure. Memory of a particular antigen is kept by the B and T lymphocytes.



 

4 0
3 years ago
Which two things should the scrum team do during the first sprint?
yaroslaw [1]

Two things that the scrum team have to do in the first sprint are

  • Deliver an increment of releasable software.
  • Develop and deliver at least one piece of functionality.

<h3>What is a scrum team?</h3>

This is  a team that is usually made up of 5 people to 9 people. These people are a team of collaborators.

They team up to ensure that products are developed, completed and also delivered.

Read more on scrum team here: brainly.com/question/5776421

#SPJ12

6 0
2 years ago
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