BIOLOGY MIDDLE SCHOOL

Darwin collected an studied many specimens to understand natural selection on the Galapagos islands. which organisms did he study while he was there

Answers

Answer 1
Answer:

Answer:

C and D or it might just be C

Explanation:
Answer 2
Answer:

He chose to study birds, plants, and animals. Mostly 2 types of Finches.

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Which best describes the difference between osmosis and diffusion? Osmosis is the movement of particles from a high to a low particle concentration, while diffusion is the movement of water from a high to a low water concentration.Diffusion is the movement of particles from a high to low particle concentration, while osmosis is the movement of water from a high to a low water concentration.Diffusion is the movement of particles from a low to a high particle concentration, while osmosis is the movement of water from a low to a high water concentration.Osmosis is the movement of particles from a low to a high particle concentration, while diffusion is the movement of water from a low to a high water concentration.
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a vegtable garden is 12 meters long by 7 meters wide in one square meter, you count two toads. estimate the population of toads in the garden.

Show two methods of factoring ax - bx - ay + by

Answers

Way #1: ax - bx - ay + by = a(x-y) - b(x-y) = (a-b)(x-y)
Way #2: ax - bx - ay + by = x(a-b) - y(a-b) = (x-y)(a-b)

Do the data for the second part of the experimentsupport or refute the second hypothesis? Be sure to
explain your answer and include how the variables
changed in the second part of the experiment.

Answers

Answer:

The data for the second part of the experiment support the second hypothesis . As the mass of the cart increased, the acceleration of the cart decreased. Since the increase in the cart's mass caused the decrease in the cart's acceleration, mass and acceleration are inversely proportional to each other, which is in accordance with Newton's second law.

Explanation: right on edg

Answer:

Ok so the answer is:

Sample Response: The data for the second part of the experiment support the second hypothesis. As the mass of the cart increased, the acceleration of the cart decreased. Since the increase in the cart's mass caused the decrease in the cart's acceleration, mass and acceleration are inversely proportional to each other, which is in accordance with Newton's second law.

Explanation:

The data for the second part of the experiment support the second hypothesis. As the mass of the cart increased, the acceleration of the cart decreased. Since the increase in the cart's mass caused the decrease in the cart's acceleration, mass and acceleration are inversely proportional to each other, which is in accordance with Newton's second law.

Sand dollars are radially symmetrical and have an internal skeleton but no backbone. Which phylum do sand dollars belong in?A) chordates
B) echinoderms
C) arthropods
D) mollusks

Answers

Sand dollars are radially symmetrical and have an internal skeleton but no backbone. This belongs to echinoderms.

What is echinoderms?

Echinoderms are known for their radial symmetry and pentamerous bodies (five or more limbs, typically grouped two on the left, one on the middle, and two on the right).

The body is divided into five equal sections, each of which has a duplicate set of different internal organs. Although brittle stars lack a heart, brain, or eyes, some of them appear to have light-sensitive areas on their arms.

Echinoderms have tube feet, which resemble tentacles and have suction pads at the ends. The extraordinary vascular system that controls these tube feet hydraulically.

Therefore, Sand dollars are radially symmetrical and have an internal skeleton but no backbone. This belongs to echinoderms.

To learn more about echinoderms, refer to the link:

brainly.com/question/1200652

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Hello there. ^-^

Sand dollars are radially symmetrical and have an internal skeleton but no backbone. Which phylum do sand dollars belong in?

B) echinoderms

How do the lungs function within the excretory system?

Answers

Because your lungs remove carbon dioxide from your body

Animals have four basic types of _________: nervous, epithelial, muscle, and connective.

Answers

Animals have four basic types of tissue: nervous, epithelial, muscle, and connective.

1) compare and contrast the Taiga and Desert biomes2) Compare and contrast the Tundra and Grasslands biomes

Answers

Answer: The desert and tundra biomes have very different temperatures as well as extremely different plants and animals. The desert can get very hot during the day, but cool off quickly at night. It has sandy soil and supports very little plant life. Animals found in the desert include lizards, javelinas, Gila monsters, coyotes, bobcats, scorpions, and kangaroo rats. The tundra is cold, dry, and often dark. The average temperature is about 10°F. The soil below the surface is permanently frozen, and is called permafrost. A few types of plants grow during the short summer season. Animals found in the tundra include caribou, foxes, wolves, and Arctic hares.
ok so the taiga and desert biomes are similar  because both of them have very little transportation , climate zones and climate zones depending on the latitudes and both biomes have little water available for plants and animals. Taiga biomes have little due to freezing and deserts  due to little rain. A difference  is that more plants can survive in the taiga than in the deserts, which in turn supports more animals. Deserts have different types of deserts that are characterized  in temperature and rainfall.Deserts are the driest biome while taigas are one of the most coldest.   A similarity between the Tundra and Grasslands biomes is that the tundra is cold and dry and little to no rainfall every year while, the grassland has warm temperatures with light winds. A similarity between them is that both biomes have a good amount of herbivores and carnivores and animals and plants have adapted to their surroundings 
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Stete one loss of biodiversity in an ecosystem