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algol13
3 years ago
14

Which piece of evidence did Alfred Wegener use to develop the theory of continental drift? A. the shape of the continents B. pal

eomagnetism of the seafloor C. tectonic activity concentrated in certain areas D. deep-sea mountain ranges
Biology
1 answer:
Svetlanka [38]3 years ago
8 0
A.......I think so. ; )
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Subject: Integrated Science Question
Vladimir79 [104]

The skin acts as a barrier for protecting the body from the harmful things such as sun rays, moisture, cold.

<u>Explanation:</u>

Skin plays an important role in regulating body temperature. It helps to prevent harmful substances enter into our body, and does not allow to loss water in our body. Its form the barrier that prevents harmful substances and microorganisms enter in our body.

Our skin is the protecting layers and against loss of water and blood from our body. Its help us to maintain the constant body  temperature. The important role of the skin us to protect our body from the ultraviolet rays.

3 0
3 years ago
The original source of ALL energy for living organisms is ___________, while the most direct, useable source of energy to be use
denpristay [2]

The correct answer is option C

The original source of energy is the sun while most of the energy in the organisms is used in the form of energy. The energy from the sun is used by the green plants to make food by the process of photosynthesis and this food is used by the human beings and animals. The energy in animals and human is in the form of ATP.

7 0
3 years ago
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Which action would most likely increase the amount of carbon in the environment? A. Choosing to burn coal to generate electricit
scoray [572]

Answer:

A choosing to burn coal to generate electricity

Explanation:

Neither nuclear energy nor alternative sources such as wind and solar seem likely to meet the demand for electricity. ... Of all fossil fuels, coal puts out the most carbon dioxide per unit of energy, so burning it poses a further threat to global climate, already warming alarmingly.

4 0
3 years ago
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Many chemotherapy drugs used to treat cancer work by modifying the mitotic spindle. Paclitaxel works by interfering with normal
Minchanka [31]

Answer:

by inhibiting the mitotic spindle plasticity

Explanation:

In eukaryotic cells, the mitotic spindle is the cytoskeletal structure by which sister chromatids are separated during cell division. Spindle microtubules are known to drive chromosome segregation, while tubulins are Microtubule-Associated Proteins (MAPs) that attach to microtubules in order to modulate their dynamics. Antimitotic drugs are nowadays widely used in chemotherapy to disrupt microtubule assembly and chromosome segregation, thereby producing mitotic arrest and cell death (apoptosis).

5 0
3 years ago
Match the animals with their characteristics.
anygoal [31]

Answer:

Earthworm - have a coelom and a closed circulatory system.

Scallops or clams - has a mantle and an open circulatory system.

Starfish - has an endoskeleton made of calcium-rich plates.

Spider - exhibits the phenomenon of molting.

Explanation:

Earthworm belongs to Phylum Annelida. They are metamerically segmented, triploblastic and bilaterally symmetrical. They have a closed circulatory system and a coelom (true body cavity).

Scallops or clams belong to Phylum Mollusca, the second largest animal phylum. They are coelomate, triploblastic, bilaterally symmetrical organisms having an open circulatory system. They have a calcareous shell covered body with a distinct head, muscular foot, visceral hump and a mantle (soft and spongy layer of skin) over the hump.

Starfish belongs to Phylum Echinodermata, which consists of exclusively free-living marine organisms. They have an endoskeleton made up of calcium carbonate structures.  They are coelomate, triploblastic and have a water vascular system that is used for respiration, locomotion, food capture and transport.

Spiders belong to Phylum Arthropoda. They have chitinous covered segmented bodies, jointed legs and exoskeletons (hard external shells).  Arthropods periodically shed their exoskeletons or shells in order to grow, this process is called molting. They are coelomate, triploblastic, bilaterally symmetrical organisms having an open circulatory system.

5 0
2 years ago
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