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valentina_108 [34]
2 years ago
6

Rachel Carson was one of the first ecologists to warn against the widespread use

Biology
1 answer:
Mice21 [21]2 years ago
7 0

Answer:

Explanation:

chel Carson was born just over 100 years ago in 1907. ... 1. Silent Spring was directed against the chemical industry and its production of deadly pesticides. ... “the elimination of the use of persistent toxic pesticides should be the goal”—as ... chemicals has shifted from cancer and the potential for genetic

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Biology help pleaseeeeee
Ksju [112]

Answer:

The last 2

Explanation:

right?

4 0
3 years ago
Read 2 more answers
Which of the factors likely contributed to the evolution of inducible defenses against herbivory? Select all that apply. a. diff
Triss [41]

Answer:

c. the cost to growth of allocating resources to defense

d. consistent fitness benefits of high allocations to defense

Explanation:

In order to ensure survival by  escape of  grazing and browsing by herbivores (and insects) plant usually adopt different defence mechanisms.This forms the basis for the optimum defence hypothesis .

The basic idea of the hypothesis is that the type   of  defence that an organism e.g plant  will adopt  against an herbivore depends on its fitness, and since this involve expenditure of energy it will be expensive for the organism to afford and maintain.

4 0
3 years ago
What word describes a membrane that only allows certain things through it?
stellarik [79]

Answer:

C) semipermeable

Explanation:

because permeable means it allows things through, and then semi makes it to where it only allows certain things through

and Impermeable means it won't let things through  and the other two options just don't make sense for the question

4 0
2 years ago
Genes a and b are 10 map units apart, b and c are 20 map units apart, and a and c are 30 map units apart. If a triple heterozygo
Stells [14]

Answer:

20 ( B )

Explanation:

Given data:

a and b are 10 map units apart

b and c are 20 map units apart

a and c = 30 map units apart

<em>condition </em>; Triple heterozygote testcrossed

number of progeny = 1000

<u>Determine the number of double crossover result </u>

P( crossover between a and b ) = 10/100 = 0.1

P( crossover between b and c ) = 20/100 = 0.2

p( double crossover ) = 0.1 * 0.2 = 0.02

hence number of double crossovers = number of progeny * 0.02

                                                              = 1000 * 0.02 = 20

6 0
3 years ago
A person walked 3 miles north turns and walks 2 miles east. Calculate the persons distance traveled and the displacement.
Nostrana [21]
Distance Travelled- 5 miles
Displacement- 13 miles
3 0
2 years ago
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