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Elenna [48]
3 years ago
15

2. What is the significance of Rachel Carson's Silent Spring?

Biology
1 answer:
Dovator [93]3 years ago
6 0

Answer:

Rachel Carson's seminal 1962 book, Silent Spring, told the real-life story of how bird populations across the country were suffering as a result of the widespread application of the synthetic pesticide DDT (dichlorodiphenyltrichloroethane), which was being used widely to control mosquitoes and others insects.

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Why are angiosperms better able to produce offspring than other plants
AfilCa [17]
The answer to your question is flowering plants are the most recently evolved of the major groups of plants, arising only about 130 million years ago. Despite their geological youthfulness, angiosperms are the dominant plants of the world today: about 80% of all living plant species are flowering plants. Furthermore, they occupy a greater variety of habitats than any other group of plants. The ancestors of flowering plants are the gymnosperms , which are the other major group of plants that produce seeds. The gymnosperms, however, produce their seeds on the surface of leaf-like structures, which makes the seeds vulnerable to mechanical damage when winds whip the branches back and forth, and to drying out. Most importantly, conifer seeds are vulnerable to insects and other animals, which view seeds as nutritious, energy packed treats. In angiosperms, the margins of the seed-bearing leaves have become inrolled and fused, so the seeds are no longer exposed but are more safely tucked inside the newly evolved "vessel," which is the ovary.

The other major advance of the angiosperms over the gymnosperms was the evolution of the flower, which is the structure responsible for sexual reproduction in these plants. The function of sexual reproduction is to bring together genetic material from two individuals of differing ancestry, so that the offspring will have a new genetic makeup.

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8 0
3 years ago
Matching (1pt each) Match the structures/organisms on the right to the appropriate statement below. Use each letter once.
kipiarov [429]

Answer:

i

Explanation:

3 0
3 years ago
Which statement correctly describes the rock cycle?
Ede4ka [16]
I’m pretty sure it’s D, the others don’t make sense??
6 0
2 years ago
Making and defending a claim on genetic mutations
nata0808 [166]

THE MUSCULAR

SYSTEM

Movements YOU CAN

VOLUNTARILY and

INVOLUNTARily clo

are controued by

the muscular System

more

SMOOTU Muscles

heb operate organi

OLUNTARY

e footh you

den

CARDIAC muscles

keep the heart Png

involuntary

3

all in

your

WORK

TUN

cons

Internal

1

Skeletal muscles

+Move your bones

*Voluntary

bladder

2

Toke

turns

Contracting

& Piping

4

4

Match the word phrase with the correct place on the chart."

1

2

3

4

Constantly at Work

Stomach

Connects Bones to Tendons

Typically Work In Pairs

Answer:



Explanation:



Time has not brought any general agreement, and a universal ... Other authors even claim that germline editing should be considered a moral imperative ... genetic manipulation of the germline on the basis of human dignity are not solid. ... of cloning—as it generates mutations—but even to use gene editing

8 0
3 years ago
Diane Dodd, of Yale University, divided a fruit-fly population, raising some populations on a starch medium and others on a malt
7nadin3 [17]

Answer:D) The starch adapted flies and maltose adapted flies are not different species but a reproductive barrier is forming between the two populations

Explanation: differences have accumulated within the populations to isolate them reproductively. The flies have chosen to mate with those like them.

8 0
3 years ago
Read 2 more answers
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