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julsineya [31]
3 years ago
12

How is scienctific knowledge is developed when people make observations about the natural world.

Biology
1 answer:
igomit [66]3 years ago
7 0
An observation may generate a scientific question, which may lead to a hypothesis. The hypothesis can be tested the experimentation. The results of experimentation lead to changes in scientific knowledge.
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If vascular plants have so many advantages, why do you think nonvascular plants still exist on earth today?
Verdich [7]
We all know that vascular plants really have many advantages. These refer to trees and flowering plants which really gives us what we need. While nonvascular plants are those small and simple plants which do not have any phloem or xylem. Despite nonvascular plants do not have as many advantages as the vascular plant to the people. They still played a big function in our ecosystem. For example, the algae, algae serve as the food of some of fishes in the pond or lakes. Non-vascular plants are also involved in processes like decomposition and indicators.<span>

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7 0
3 years ago
.Marcus has $15.00 to spend on fruit. He buys 3 mangoes and spends the rest of the money on grapes. The store charges $0.75 for
cestrela7 [59]

Answer:

Explanation:

after he spent money on mangoes it was a total of 12.75

so he bought like 5lb of grapes

4 0
3 years ago
What are the characteristics of continental tropical air
Dafna1 [17]

Answer:

hot and dry

Explanation:

CONTINENTAL TROPICAL AIR MASS. The source region for cT air is the desert Southwest, the high plains and Mexico with relation to the United States. The air has low dewpoints and warm to hot afternoon temperatures but with mild nighttime temperature. Skies are generally clear in cT air.

4 0
3 years ago
What explanation does this image tell about reproduction and variation?
Zigmanuir [339]

Answer:

See the answer below

Explanation:

First, the image tells that chromosomes are made up of genes or that genes are located on chromosomes. It further showed that genes are translated as proteins in the cell and this protein respectively control the expression of traits.

Secondly, it also showed that during sexual reproduction, the offspring produced usually have the same proteins as the parent and therefore have exactly the same traits as the parent. Only one parent is needed for asexual reproduction.

<u>However, two parents are needed for sexual reproduction where each parent donate chromosomes containing gene to the genome of their offpsring. The mixture of genes ensures that the offspring look different from the parent.</u>

<em>The image further showed that asexual reproduction does not lead to any variation while sexual reproduction leads to variation of the offpsring from their parents.</em>

3 0
3 years ago
How can you interpret and analyze data for patterns in fossil record?
Crank

Answer:

Patterns can occur within one species of organism or across many species. Students who understand the concepts can: Use graphs, charts, and images to identify patterns within the fossil record. Analyze and interpret data within the fossil record to determine similarities and differences in findings.

Explanation:

3 0
3 years ago
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